API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Asiakkaamme antoivat 87,292 arvostelussa keskimääräisen arvosanan API Developers 4.9 / 5 tähteä.
Palkkaa API Developers

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Asiakkaamme antoivat 87,292 arvostelussa keskimääräisen arvosanan API Developers 4.9 / 5 tähteä.
Palkkaa API Developers

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    269 löydetyt työt

    I need someone to rip out. WordPress sites won after another generic as fast as you can go. I can keep giving you more work huge bonuses or talking in hundreds of sites easy the cheaper the better speed is of the essence, though I mean as fast as you can go use all tools all means necessary AI all of it please let me know how fast she can get each website done the quickest draw on the west. We’ll get the job. No questions asked I have references. I expect you to have references as well. No BS real coders Strong Back and Preferred chron jobs the works.

    €24 Average bid
    €24 Keskimäär. tarjous
    37 tarjoukset
    Cross-Platform Delivery Service App
    6 päivää left
    Varmennettu

    one of our driver will plan route and he will be going through those roads all of our customers who have our app will get notified that driver will be going from there soon would they like to buy something from him if they say yes to that notification they then on driver app that area will get Red or green so driver will know that there is potential buyer in that area or road or house so when driver will reach to that location where it was red and customer said yes then customer same customer will get notified that driver is outside their house if they want to buy anything Also customer have option of booking Slot Or Book our services for the parties or event or Ask for Quote Driver Login Driver go online offline Plan the route by roads or post code/zip code Driver location will not be...

    €157 Average bid
    €157 Keskimäär. tarjous
    61 tarjoukset

    Quero lançar um portal imobiliário focado na minha região, inspirado no modelo do ZapImóveis, onde proprietários possam anunciar imóveis para venda ou locação e interessados encontrem oportunidades rapidamente. O site precisará: • Duas áreas de usuários bem definidas. Vendedores / locatários poderão publicar imóveis e visualizar os planos disponíveis; compradores / inquilinos terão acesso aos anúncios e filtros de busca. • Modelos de cobrança por assinatura mensal e também pacotes avulsos de anúncios. Todo o fluxo de contratação deve ocorrer dentro da plataforma, com renovação automática e controle de val...

    €467 Average bid
    €467 Keskimäär. tarjous
    45 tarjoukset

    I’m building the first release of a marketplace that links Egyptian auto-spare-parts vendors with car owners. The goal is a single code-base mobile app—React Native or Flutter—delivered for both Android and iOS, backed by a solid admin portal and scalable APIs. Mobile application • A clean customer journey from search to checkout • Vendor side access embedded in the same build or a paired app, whichever keeps the UX simple • Cross-platform code must feel native­—smooth animations, push notifications, deep linking, the works Vendor wallet & payouts My highest priorities are an accurate balance overview and detailed transaction history. Commission is calculated per sale; the backend should update wallet balances automatically and expose we...

    €1741 Average bid
    €1741 Keskimäär. tarjous
    99 tarjoukset

    I have a production-level backend built in Python that uses Krackend. A blocking bug surfaced and I need it fixed on a strict, one-off, fixed-price basis. I will share my screen and grant console access through TeamViewer; no direct server credentials or repository checkout will be provided, so you must be comfortable debugging live on my machine. We can connect tomorrow and start immediately. During that session I will reproduce the issue for you, walk you through the current code structure, and stay available to answer questions while you diagnose, patch, and test. Once the problem is resolved I need a brief write-up of the root cause and the exact changes you made so I can commit them to the main repo afterwards. Deliverables • Working fix applied and demonstrated via TeamViewer ...

    €8 Average bid
    €8 Keskimäär. tarjous
    7 tarjoukset
    High-Traffic Commerce App Scaling
    6 päivää left
    Varmennettu

    Our TikTok-style commerce platform is already live on both iOS and Android, powered by a Laravel backend and running on Alibaba Cloud. Daily we handle live shopping streams, real-time chat, in-app payments, and logistics tracking, and our user base is moving from the hundreds of thousands toward the million-plus mark. To stay ahead of that growth I’m restructuring the entire infrastructure and codebase for true horizontal scale, bullet-proof uptime, and lightning performance. Here is the current landscape you’ll step into: • Native iOS & Android codebases that need profiling, refactoring where necessary, and tighter CI/CD. • A Laravel monolith that must be modularised, cached with Redis, and tuned for very high concurrency. • PostgreSQL instances appro...

    €13 / hr Average bid
    €13 / hr Keskimäär. tarjous
    60 tarjoukset
    Voice Agent Square & Stripe Booking
    6 päivää left
    Varmennettu

    I’m already using to talk with my clients; now I need those conversations to actually create, move, or cancel service appointments inside Square—and just as easily inside Stripe for the next business I onboard. I am not locked into - if you’ve got a better suggestion let me know why? Here’s what I need the finished solution to do: • Listen to Synthflow’s webhook calls, map the intent (book, reschedule, cancel, quote price) and any slot data, then hit the correct Square or Stripe Booking API endpoint. • Return a clear, conversational response that my agent can read back so the caller always knows what just happened. • Keep everything—API keys, service IDs, time-zone settings—in a single config file or environment block so I...

    €377 Average bid
    €377 Keskimäär. tarjous
    134 tarjoukset

    I’m putting together a modern web application and I want it engineered end-to-end with React on the front and Node.js on the back. Real-time updates are central to the experience, so you should be comfortable wiring WebSockets or a layer that keeps every client instantly in sync without page refreshes. Here’s the flow I have in mind: • Design a clean, reusable component architecture in React (hooks, context, or Redux—whichever you know will scale). • Stand up a lightweight Node.js/Express API that pushes and receives real-time events efficiently. • Connect the two, secure the traffic, and deploy to a cloud host so I can test live. I’ll supply wireframes and the basic data model; you translate that into working code, commit to Git regularly, a...

    €385 Average bid
    €385 Keskimäär. tarjous
    146 tarjoukset
    Convert WordPress Website to React.js
    6 päivää left
    Varmennettu

    We are seeking an experienced developer to convert our existing WordPress website into a dynamic React.js application. The ideal candidate should have a strong understanding of both WordPress and React.js frameworks. You will be responsible for maintaining the website's current functionality while enhancing performance and user experience. Please provide examples of similar projects you have completed in the past.

    €8 / hr Average bid
    €8 / hr Keskimäär. tarjous
    104 tarjoukset

    ## Project Overview Seeking an experienced data engineer to integrate our complete Google marketing stack into Google BigQuery as a centralized data warehouse, with an AI-powered natural language query interface on top. ## Scope of Work **Phase 1: Data Integration to BigQuery** Connect and automate data pipelines from: - Google Analytics 4 (GA4) - Google Ads - Google Search Console - Google Tag Manager - Google Merchant Center Requirements: - Set up automated, near real-time data transfers - Design efficient BigQuery schema with proper data modeling - Implement ETL/ELT processes with data quality checks - Create unified views combining data across platforms - Import historical data - Document all data flows and transformation logic **Phase 2: AI Integration Layer** Implement AI-power...

    €158 Average bid
    Mainostettu
    €158 Keskimäär. tarjous
    42 tarjoukset

    The first slice of our game’s frontend is already in place, but the UI needs a visual and usability upgrade before we move forward. Beginning tomorrow, I’d like you to step in, take ownership of the codebase, and carry the project all the way to production. On the backend I’m leaning toward Node.js, yet I’m flexible on the stack if you can justify clear benefits. Our database is still open for discussion—feel free to propose SQL (MySQL, PostgreSQL) or NoSQL (MongoDB, etc.) solutions that best fit a live-service game. Whichever route we pick, clean schema design, migration strategy, and security best practices are essential. Core scope • Fix and polish the existing frontend, focusing specifically on user-interface design so it looks and feels like a mode...

    €19 / hr Average bid
    €19 / hr Keskimäär. tarjous
    91 tarjoukset

    I need a Windows-installable desktop application that embeds a headless instance of Puppeteer and drives it entirely in the background. Here is the core flow I want to achieve: • The moment a user types or speaks a query, the app spins up Puppeteer, opens the target website (e.g., ) invisibly, and waits until the page is fully rendered. • It then injects the query—supporting both plain text search strings and real-time voice input—submits the form, performs any button clicks or page navigation required, and remains on the new page until all assets finish loading. • The resulting page (HTML, CSS, imagery, and any dynamic content) is captured exactly as the visitor would see it and displayed inside my own application window; users never interact with an ex...

    €8 Average bid
    €8 Keskimäär. tarjous
    7 tarjoukset

    We are building an ad monetization platform similar to Freestar and AdPushup. The platform helps website and app publishers maximize their ad revenue. We are a Google Partner with access to Google Ad Exchange (AdX) demand and have accounts with multiple SSP/Prebid partners. Note: We are not currently an MCM (Multiple Customer Management) partner, so AdX demand is served through our own GAM account. The platform consists of three main parts: • A JavaScript tag that publishers place on their website which handles everything: running Prebid auctions, calling GAM, rendering ads, and reporting data back to us • A backend / admin dashboard where we configure everything per publisher: ad units, bidders, floors, formats, and settings • A publisher-facing dashboard ...

    €895 Average bid
    €895 Keskimäär. tarjous
    27 tarjoukset

    Project: Build a Publisher Monetization Network (Web + App) Overview We are building a next-generation publisher monetization company. Our mission is to become a full monetization partner for digital publishers by owning the technology, optimization systems, reporting, and revenue workflows. This is not a simple SaaS dashboard. This is infrastructure required to run: demand integrations header bidding yield optimization refresh & viewability logic reporting & reconciliation publisher payments The goal is to operate a company comparable to Freestar, powered by Google Ad Manager and Prebid, but with stronger automation, transparency, and scalability. What We Are Building A centralized system where we can: onboard publisher websites and apps deploy monetization automati...

    €477 Average bid
    €477 Keskimäär. tarjous
    44 tarjoukset
    Technical & Functional Blueprint Document
    6 päivää left
    Varmennettu

    I need a comprehensive technical-and-functional blueprint for a new specialized digital platform. To ground every recommendation in real-world evidence, you will first study competitor platforms as well as several user-nominated platforms that my team will share. Drawing from that analysis, you will then produce a single, well-structured document that details the platform’s architecture, key modules, data flows, integration points, and any compliance or scalability considerations. The final blueprint should read like a roadmap that an engineering team could pick up and start building from. Clear diagrams, precise feature descriptions, and rationale for each technology choice are essential. Your background in technical writing and software documentation—especially where technic...

    €19 / hr Average bid
    €19 / hr Keskimäär. tarjous
    63 tarjoukset
    Website Developer/Designers
    6 päivää left
    Varmennettu

    I want a partner who can take a website from blank page to live production. That means crafting a polished design, coding the front- and back-end, and weaving in robust e-commerce. I’m platform-agnostic—Shopify, WooCommerce or Magento can all work; we’ll choose the one that best fits the project once goals and data flows are mapped out. AI is a must-have, not a nice-to-have. The build should include: • Chatbots that handle common customer queries and hand off smoothly to human support • API-driven features so the site can talk to external services (think inventory, CRM, personalisation) • Automations that reduce manual workload—order routing, email triggers, basic analytics reporting Core expectations • Mobile-first layouts that still loo...

    €5 / hr Average bid
    €5 / hr Keskimäär. tarjous
    79 tarjoukset

    Detailed User & Admin Flow Overview User Onboarding & Profile Creation Users begin by accessing the official website (1 page website need to be created by you), which redirects them to download the mobile app (Android / iOS). After installation, users log in using their mobile number via OTP authentication with auto-read and auto-fill for secure, password-free access. Users then complete a structured biodata form including personal details (name, gender – groom/bride, age, height, education, occupation, city, contact details, and family details). Based on this, the system automatically generates a biodata profile with a unique Biodata ID. Users upload 2–4 photos, after which the system automatically generates a watermark (Community Name + Biodata ID) and links it sec...

    €282 Average bid
    €282 Keskimäär. tarjous
    59 tarjoukset

    I run on a full MERN stack and I need every order placed in my Shopify store to appear in our MongoDB in near real-time, complete with customer details, AWB assignment and live status updates back to Shopify. The flow I picture is straightforward: a webhook (or similar) fires from Shopify, your service captures it, formats the payload, then writes order and customer data into our existing collections. When the shipment moves, my system should push the new status and AWB number to Shopify so the buyer sees the update instantly. Key data points are: • Order details (items, prices, shipping method, timestamps) • Customer information (name, email, phone, address) • Two-way status synchronisation, including AWB generation/return Tech context: the site uses Node.js/E...

    €64 Average bid
    €64 Keskimäär. tarjous
    21 tarjoukset

    I need a custom search engine designed for a public website, prioritizing video content. The search engine should have advanced filtering options to refine search results. Key Requirements: - Search engine for public website - Prioritize video content - Advanced filtering options Ideal Skills & Experience: - Experience in search engine development - Strong understanding of video content indexing - Ability to implement advanced filtering mechanisms - Familiarity with public website integration

    €370 Average bid
    €370 Keskimäär. tarjous
    106 tarjoukset

    I want to bring to life a full-scale SaaS platform that gives every business instant access to five virtual colleagues: an intelligent email assistant, a proactive sales expert, a strategic marketing guru, a knowledgeable legal advisor, and an always-available receptionist. Each role must converse naturally thanks to robust natural-language processing, handle its own automated scheduling, and plug seamlessly into the user’s existing email and calendar services so setup feels effortless. One such product is Marblism: . The benchmark is , yet our goal is to outshine it in depth, accuracy, and polish. Users should enjoy advanced, deep-personalization controls—everything from tone of voice to workflow logic—so the AI workers truly feel like part of their team. Key outcom...

    €12506 Average bid
    €12506 Keskimäär. tarjous
    44 tarjoukset

    I need a web-based application that lets my admins, employees, and customers move smoothly from checking stock to placing and paying for an order. At its core the system must combine inventory control, billing, and order placement in one dashboard so nobody has to jump between tools. Because several user roles will be logging in, role-based access is essential: admins oversee everything, employees handle day-to-day stock and sales entries, and customers view availability, create orders, and download their invoices. Key functionality I expect on day one: • Tracking stock levels in real time so low-quantity items trigger alerts • Generating reports (sales, inventory valuation, reorder points) that can be exported to PDF or Excel • Categorizing items with searchable tag...

    €32 Average bid
    €32 Keskimäär. tarjous
    25 tarjoukset

    I’m building a dedicated Android application for my eyewear chain and I need a developer who can take it from concept to a polished, Play-Store–ready release. The app must recognise that we operate several branches. Each location needs its own working hours, contact details, Google Maps pin, and real-time stock availability. When a customer opens the app, they can immediately see which branch is open, what products are in stock there, and book their appointment accordingly. Our product catalog is the heart of the experience. Frames, lenses, sunglasses and contact lenses should be displayed with photos, prices and “available in store” status. Shoppers must be able to filter by type, price range and availability, not just keyword search. Speed here is critical&mdash...

    €1024 Average bid
    €1024 Keskimäär. tarjous
    45 tarjoukset

    I need help in building my own mobile proxy set up: More details: Is this project for business or personal use? For an existing business What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? ASAP

    €285 Average bid
    €285 Keskimäär. tarjous
    107 tarjoukset

    Project Overview We are looking for an expert AI/Computer Vision developer (or small team) to build a scalable, production-ready AI pipeline for a fashion eCommerce catalog. The goal is to automate product tagging and generate photorealistic on-model images from flat-lay photos. We prioritize cost-effective solutions leveraging state-of-the-art (SOTA) open-source models (e.g., IDM-VTON, OOTDiff, Stable Diffusion XL). 1. Automated AI Product Tagging • Volume: 20,000–40,000 SKUs/year (Batch processing required). • Scope: Fashion only (Apparel, Accessories, Footwear). • Task: Build a CV-based engine to extract attributes (Category, Color, Material, Fit, Pattern, Style, etc.). • Taxonomy: Consultant should help define a scalable tagging structure. • Requirement:...

    €6282 Average bid
    €6282 Keskimäär. tarjous
    71 tarjoukset

    Job Title: Python Backend / Platform Engineer (Django) Experience: 6-7 Years Duration: 2 Hours per Day Budget: ₹24,000 per Month Mode: Remote Role Overview We are looking for a Python Backend / Platform Engineer with strong experience in Django and backend system development. This role primarily focuses on backend engineering, API development, and platform-level integrations. While exposure to cloud and deployment environments is required. The candidate will work closely with platform and infrastructure teams to build scalable and secure backend services. Key Responsibilities Design, develop, and maintain backend services using Python and Django Develop scalable and secure APIs following API-first design principles Build and maintain backend logic, integrations, and platform services Work ...

    €47 Average bid
    €47 Keskimäär. tarjous
    18 tarjoukset

    Description We are an early-stage fintech infrastructure startup building a developer-first payments product with global scope. The project is pre-launch, already architected, and positioned to raise institutional funding once the technical foundation and MVP are finalized. We are looking for a CTO Co-Founder to take full ownership of the technical vision and execution and help build a company designed for scale, defensibility, and fundraising. What You’ll Do Own the technical architecture and roadmap Build and harden a core fintech API / platform Make key decisions around scalability, security, and reliability Collaborate closely with the founder on product and investor readiness Lead future engineering hires post-funding Ideal Profile Strong backend / systems engineerin...

    €19 / hr Average bid
    €19 / hr Keskimäär. tarjous
    128 tarjoukset
    AI KYC-Income Report Generator
    6 päivää left
    Varmennettu

    I want to build an in-house AI system that lets my team drag-and-drop both KYC and Income documents and, in one click, receive a neatly formatted PDF report. The PDF must always include: • Eligibility check (based on the rules I will supply) • Salary details in a clear monthly breakdown table • Current obligations in a similar table • Pending documents list • Pending form details • Probable queries for the credit team All eligibility logic, standard document lists and a library of past queries will be provided so the model can be fine-tuned to our exact policies. Accuracy and consistency matter more than fancy UI; I simply need a reliable back-end that ingests scans or PDFs, extracts the data, applies the rules and returns a single consolidated...

    €79 Average bid
    €79 Keskimäär. tarjous
    14 tarjoukset
    Real-Time Webpage Change Monitor
    6 päivää left
    Varmennettu

    I need a small utility that sits in the background, pings a single public web page every second, and alerts me the moment it detects any difference in either the visible text or the images. The page updates unpredictably, so true real-time tracking is essential; a one-minute polling interval is already too slow for my use-case. A lightweight approach that respects the site’s bandwidth and avoids triggering blocks or captchas will be valued. I am open to whatever stack you favour—Python with BeautifulSoup or Selenium, Node.js with Puppeteer, or a compiled solution—so long as it is stable on a Windows environment and easy for me to tweak the target URL later. Notification method is flexible: an email is fine, but if you have a smarter suggestion (desktop toast, webhoo...

    €9 Average bid
    €9 Keskimäär. tarjous
    14 tarjoukset

    I need a small, purpose-built utility that will unlock a currently blocked feature on my Brovi H155-381 device. You are free to choose the language and framework—Python with pySerial, C/C++, or even a lightweight Java app—as long as the end result is a reliable executable I can run on Windows. If gaining access requires reading or patching firmware, I’ll want clean, well-commented source files and a brief explanation of the offset or command sequence being changed. Deliverables • Compiled utility that unblocks the feature • Full source code and build steps • Short read-me covering usage, prerequisites, and a safe rollback method in case I ever need to restore factory state I’ll supply any device logs you request and can test builds quickly...

    €913 Average bid
    €913 Keskimäär. tarjous
    62 tarjoukset

    We have an existing mobile application for ambulance booking (road, train, air ambulance). Currently, it is a simple form-based system, and we want to upgrade it to a more interactive, real-time booking experience similar to ride-hailing apps. We are looking for an experienced developer to implement Phase 1 (MVP upgrade). Scope of Work: 1. Booking Flow Upgrade * Replace current form with a step-by-step booking process * Fields: ambulance type, pickup location, drop location, patient details * Clean and modern UI/UX 2. Location Integration * Auto-detect user location on app open * Pickup & drop location with autocomplete dropdown (Google Places API) * Show distance between locations 3. Real-Time Status Updates * Booking status flow: Requested → Assigned → On the Way ...

    €93 Average bid
    €93 Keskimäär. tarjous
    22 tarjoukset

    Busco a un desarrollador con experiencia en aplicaciones web y móviles para crear una plataforma de Control Preventivo dirigida al sector HVAC. Alcance clave • Usuarios previstos: Técnicos y Gerentes podrán iniciar sesión con distintos niveles de acceso y permisos. • Funcionalidades imprescindibles: – Seguimiento de mantenimiento para programar y registrar tareas preventivas. – Informes y análisis que consoliden datos de equipos y muestren métricas de desempeño. – Notificaciones y alertas automáticas por correo, push o SMS cuando se acerquen fechas críticas o se detecten anomalías. • Acceso multiplataforma: la interfaz debe adaptarse correctamente a computadoras de es...

    €547 Average bid
    €547 Keskimäär. tarjous
    39 tarjoukset

    Build QR-Based Corporate Food Ordering MVP (2-Week Delivery) – Mollie/iDEAL – Netherlands Project Overview We are launching a pilot corporate breakfast & lunch ordering service in the Netherlands. Around 10 companies will receive a QR code in their canteen. Employees scan the QR code to order breakfast or lunch for pickup or delivery. We need a lightweight, production-ready MVP web app delivered within 2 weeks. MVP Requirements (Strict Scope) 1. QR Ordering Per Location • Each company has a unique QR code link • Location is automatically identified from the QR • Orders must be stored and reported per location Initial rollout: 10 companies. 2. Ordering Cut-Off Times Two daily ordering windows: Breakfast • Orders allowed from evening before ...

    €498 Average bid
    €498 Keskimäär. tarjous
    157 tarjoukset

    Saya membutuhkan seorang pengembang yang dapat membangun website e-commerce modern dengan pendekatan custom build, bukan memakai Shopify ataupun WooCommerce. Fitur inti yang harus tersedia: • Keranjang belanja yang responsif dan mudah digunakan. • Sistem pembayaran terintegrasi (gateway lokal maupun internasional) dengan proses checkout aman. • Modul manajemen inventaris agar saya dapat menambah, mengedit, serta memantau stok secara real-time. Harapan saya: 1. Desain front-end clean, mobile-first, dan cepat dimuat. 2. Back-end terstruktur dengan API yang rapi sehingga mudah di­scale maupun diintegrasikan ke aplikasi lain. 3. Dashboard admin sederhana untuk mengelola produk, pesanan, dan laporan penjualan. 4. Dokumentasi singkat mengenai cara deploymen...

    €343 Average bid
    €343 Keskimäär. tarjous
    25 tarjoukset

    I am looking for an experienced developer to build and deploy a VPS hosted middleware service to run a reliable, production grade integration between GoHighLevel (GHL) and ServiceM8. We are moving to a VPS hosted approach so we can run stable sync jobs, enforce correct data rules, improve logging and traceability, and reduce failures and timeouts. This will be deployed into production for a real business, so quality, security, documentation, and maintainability matter. Preferred hosting DigitalOcean, Sydney region, Ubuntu LTS. Scope and deliverables 1. Bi directional contact sync with deduplication The middleware must reliably sync contacts between GoHighLevel and ServiceM8 in both directions. It must prevent duplicates using sensible matching rules, including: Email matching Phone ...

    €73 Average bid
    €73 Keskimäär. tarjous
    29 tarjoukset
    Adaptive Health Coaching Platform MVP
    5 päivää left
    Varmennettu

    ADAPT MVP Developer Spec Overview ADAPT is a web + iOS adaptive health coaching platform. The MVP should include core functionality for both clients and coaches, with APA intelligence integrated to personalize plans, nudges, and seasonal progression. Key Goals: 1. Provide adaptive, personalized meal and workout plans 2. Track client metrics and readiness 3. Support check-ins and season logic 4. Schedule monthly Zoom calls with pre-call notes and post-call summaries 5. Enable coach controls (approvals, overrides, autonomy levels) 6. Deliver behavioral nudges 7. Ensure seamless client and coach dashboards 8. Allow client onboarding with preference storage ________________________________________ Core MVP Modules / Tabs 1. Metrics & Trend Tab o Graphs: weight, body fat %, lean mass, adher...

    €27 / hr Average bid
    Salassapitosopimus
    €27 / hr Keskimäär. tarjous
    103 tarjoukset
    Golang Rego to Kyverno Translation
    5 päivää left
    Varmennettu

    I need a translator for OPA Rego policies to Kyverno. The goal is to convert the policies to Kyverno while ensuring compliance with OPA gatekeeper standards. Requirements: - Convert Rego policies into Kyverno - Maintain OPA compliance - Ensure accuracy and performance Ideal Skills: - Proficiency in Golang and Rego - Experience with Kyverno - Knowledge of OPA standards and compliance Looking for a freelancer who can deliver accurate translations efficiently.

    €362 Average bid
    €362 Keskimäär. tarjous
    62 tarjoukset
    Ranked Bedwars MMR & Matchmaking Plugin
    5 päivää left
    Varmennettu

    I’m extending my Bedwars1058 server into a truly competitive arena and need a ranked system coded right away. The core requirements are already mapped out—placement matches, ongoing MMR updates, a /rank lookup, and full data persistence—but the make-or-break piece is fair, dynamic matchmaking. Players must be grouped with opponents of similar rating, with the queue smart enough to widen its tolerance only when wait times get excessive. Everything has to slip neatly into the existing Bedwars1058 ecosystem; no changes to the core game, no clunky commands. Java, Spigot/Paper APIs, and solid MySQL (or equivalent) handling will all be in play. The finished module should: • Track first-ten placement games, establish an initial MMR, then adjust after every win, loss, kill...

    €23 Average bid
    €23 Keskimäär. tarjous
    22 tarjoukset
    Robust Email Verification Platform
    5 päivää left
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    I need a complete platform that can tell—quickly and with a high degree of accuracy—whether an email address is usable. The core of the build must cover: • Syntax verification • Domain verification • Mail-server (SMTP) verification Those three checks have to run in a single pass so the user gets a clear “valid / invalid / unknown” status without waiting around. You are free to choose the stack, but solutions that lean on reliable libraries or services for DNS look-ups and SMTP handshakes (for example Python with dnspython and smtplib, or a Node.js equivalent) will go to the top of the pile. I expect: – A web interface where I can paste or upload a list and watch the progress in real time. – A clean JSON API that mirrors the sa...

    €199 Average bid
    €199 Keskimäär. tarjous
    104 tarjoukset

    I want to build a service marketplace app similar to Sheba/Urban Company. Structure: Category → Sub‑Category → Service (service is the base unit) Main Modules: 1) Customer App 2) Worker App 3) Admin Panel (Web) 4) Backend + Database + APIs Core Features: - Category/Sub‑Category/Service listing - Fixed & Variable Pricing Engine - Fixed & Variable Time Calculation - Booking System - Worker Matching (primary + extended radius) - Payment Integration (bKash/Nagad/SSLCommerz) - Big Job Module (inspection + verification) - Notifications - Service activation/deactivation - Promo support Admin Panel: - Add/Edit Category, Sub‑Category, Service - Set price type (fixed/per_sqft/per_room/per_unit) - Set base price, min/max price, base unit - Set time type (fixed/variable) - Set ba...

    €429 Average bid
    €429 Keskimäär. tarjous
    203 tarjoukset

    I am developing a Cabal Online Private MMORPG (EP 35 +). The system works through .so library injection into the game server process, and includes: Advanced C++ development Memory hooks and offset manipulation Packet interception and handling (C2S / S2C) Internal game structure interaction Modular plugin system JSON-based configuration Linux-based deployment I am looking for an experienced developer to help expand, stabilize, and improve this system. - Technical Requirements Strong C++ (advanced level); Linux development experience; Memory manipulation (pointers, offsets); Hooking / detours; Reverse engineering knowledge; Networking and protocol understanding; Advanced debugging skills; Nice to have: Experience with MMO private servers; Familiarity with Cabal, MU Online, Ragnarok, o...

    €3276 Average bid
    €3276 Keskimäär. tarjous
    22 tarjoukset
    Google Sheet Retail Data Automation
    5 päivää left
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    I need a single Google Sheet that lets me type a Home Depot or Lowe’s model number in one column and, without any extra clicks, instantly fills the rest of the row with: • Brand • Product title • Full description • Current price on Home Depot • Current price on Lowe’s • Main image URL I’d like the sheet to refresh these fields automatically once every day so I always see up-to-date pricing. I’m happy to use the HASData API (or another service if you can show a better option), and I’ll cover the subscription cost myself; I just need you to wire everything up in Apps Script or another reliable method so the calls stay within API limits and don’t break if the catalog grows. Deliverables • A Google Sheet t...

    €20 Average bid
    €20 Keskimäär. tarjous
    45 tarjoukset
    Next-Gen EV Charger Management
    5 päivää left
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    I’m rolling out a new generation of eco-friendly EV charging stations and need a full-featured management platform built from scratch. Here’s what the first release must do for me: • Energy usage monitoring for every session and charger • Remote control—start, stop, reboot and schedule charging • Secure user authentication Role-based access is essential. Administrators configure the network and view global analytics, end-users simply authenticate and charge, while maintenance staff receive real-time diagnostics and alerts. The platform must also talk seamlessly to our existing energy-management system through open, well-documented APIs so we can optimise load and incorporate on-site renewables. REST/JSON is preferred, but I’m open to proven alterna...

    €6082 Average bid
    €6082 Keskimäär. tarjous
    106 tarjoukset
    Custom Nostr Fork Development
    5 päivää left
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    I’m forking and need a seasoned TypeScript engineer who is totally at ease working Git-first and can dive straight into a Nostr codebase. The immediate goal is to introduce a suite of non-public features around improved listings and, above all, a powerful personalised content-suggestion layer. Scope • Extend the existing front-end and back-end (TypeScript, React, Node) with the new private listing modules I will outline in Figma and Notion. • Build a recommendation engine grounded in socio-psychology principles rather than the usual collaborative or content-based filters. I will supply the research notes and sample scoring model; you will translate them into production code, unit tests, and API endpoints. • Keep everything behind a feature flag so the public fo...

    €453 Average bid
    €453 Keskimäär. tarjous
    145 tarjoukset

    I am seeking a full custom SaaS rebuild of RememberMe, a QR based memorial platform that links engraved stainless steel plaques to digital memorial profiles containing photos, videos, audio recordings, obituaries, biographies, timelines, and family submitted content. This is a ground up rebuild designed for long term scalability (millions of users), performance, and security, not a template site. Key Requirements: Scalable cloud-based backend architecture Secure user authentication and account management Media storage and optimization (photos, video, audio) Stripe integration for e-commerce checkout Automated unique QR code generation tied to profiles Short, engraving-friendly URL system Public memorial pages (SEO optimized) Robust admin dashboard with: User management Order management &am...

    €6041 Average bid
    €6041 Keskimäär. tarjous
    158 tarjoukset

    We have developed two Python scripts to prepare VTT files (*.vtt) for translation and another to prepare them for delivery to the client. The first script combines segmented text for translation. The second script re-splits the translated content into properly timed captions for delivery. Currently, if a project manager wants to use the scripts, they need to email the files to the script owner, who manually runs the first script and returns the processed files to the project manager. The project manager then continues with the workflow. Once the translated content is finalised, the project manager emails the files back to the script owner to run the second script, and the script owner sends the processed files back to the project manager for delivery. We want to implement a solution tha...

    €28 / hr Average bid
    €28 / hr Keskimäär. tarjous
    176 tarjoukset

    I’m building a lightweight MVP that lets independent cafés run a fully automatic, card-linked loyalty programme without issuing separate cards or apps. The core of the job is a secure backend service that: • Listens to Square and SumUp webhooks / APIs, fingerprints the payment card (never the full PAN) and recognises returning customers. • Increments a visit counter and, when a customer hits the reward threshold, instantly triggers the reward logic. • Fires an SMS through Plivo to let the guest know they’ve just earned, for example, a free coffee. What I’ll look for in the finished work 1. Clean, well-documented code (language and framework are up to you as long as it’s reliable and easy to maintain). 2. Clear setup instructions a c...

    €606 Average bid
    €606 Keskimäär. tarjous
    159 tarjoukset

    I'm looking for an experienced full-stack developer to implement the MVP end-to-end. I'll need a video call, so no scams here. Overview Clients submit coding tasks through a store-like request system. Each request becomes a project with clear lifecycle tracking, communication, time tracking, and weekly billing. The platform must support multiple roles: Client, Developer, and Admin. Core Features (MVP) Service Request & Project Creation • Store-style service selection • Structured task submission (requirements, priority, attachments) • Automatic project creation after request/payment Project Lifecycle Management • Status flow (e.g. Received → Investigating → In Progress → Review → Completed) • Progress updates and activity hi...

    €430 Average bid
    €430 Keskimäär. tarjous
    271 tarjoukset

    Desarrollador/a Especializado en – Integraciones y Automatizaciones Descripción del Proyecto Estamos buscando un/a Desarrollador/a con experiencia en para trabajar en integraciones, automatizaciones y soluciones técnicas sobre la plataforma. es una plataforma omnicanal de mensajería empresarial impulsada por IA, que unifica conversaciones de múltiples canales (WhatsApp, Instagram, Messenger, correo electrónico, chat web, etc.) para ventas, marketing y soporte. Este rol es ideal para alguien con fuerte enfoque en desarrollo técnico, API, automatizaciones y escalabilidad de soluciones basadas en Respond.io. Responsabilidades Integración y Desarrollo Desarrollar integraciones con APIs de para conectar con otros sistemas (CRM, au...

    €1142 Average bid
    €1142 Keskimäär. tarjous
    84 tarjoukset

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