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    Publish B2B E-commerce App to App Stores
    6 päivää left
    Varmennettu

    Publish React/Capacitor Web App to iOS App Store & Google Play Store Job Description: We have a fully functional B2B e-commerce web application built with React, TypeScript, and Capacitor that we need published to both the Apple App Store and Google Play Store. Project Overview: The web app is complete and production-ready Capacitor is already configured in the project We need an experienced developer to handle the native build process and app store submissions Scope of Work: iOS (App Store): Configure Xcode project settings Set up app signing and provisioning profiles Create App Store Connect listing Handle app review submission process Address any rejection feedback until approved Android (Google Play): Configure Android Studio project settings Generate signed APK/AAB Crea...

    €422 Average bid
    €422 Keskimäär. tarjous
    132 tarjoukset

    ...promotes users through tiered levels, plus staking/vesting logic, a level-gated NFT mint function, and an ATA utility token. • Seamless integration of those contracts into my existing TypeScript/ codebase using Wagmi ( or are fine substitutes), including wallet connection and real-time state updates. • A sweep of the current front end to squash bugs, fill missing features, and polish UI/UX and transaction handling so users enjoy a smooth, low-friction flow from connect to mint. Key stack & experience: – Solidity on BNB Smart Chain or another EVM network – , React, TypeScript – Wagmi, or – Proven track record delivering production-grade Web3 projects (please provide links or repos) If you’re confident in writing...

    €29 / hr Average bid
    €29 / hr Keskimäär. tarjous
    120 tarjoukset

    ...data modeling - Private content access - Secure cloud deployment Product details will be shared after NDA and shortlisting. Required Tech Stack (Mandatory) Backend Python + FastAPI PostgreSQL (relational modeling) Redis (caching, rate limiting, OTP/session handling) JWT authentication (access + refresh tokens) Async/background task processing (Celery or equivalent) Frontend React + TypeScript preferred Tailwind CSS or similar utility-first styling Infrastructure AWS (Lightsail / App Runner / or any other you think can be best for cold start) Docker-based deployment (optional) HTTPS, secrets management, private networking Firebase-only or no-code solutions will not be considered....

    €102 Average bid
    €102 Keskimäär. tarjous
    31 tarjoukset
    Multi-Restaurant Node Cloud Backend
    6 päivää left
    Varmennettu

    ...tables, and push changes to the cloud API the instant they happen; the cloud then replies with any new data to keep both sides in sync. Think of it as bidirectional, near-zero latency replication built specifically for this schema, not generic DB replication. For visibility I want an Angular dashboard that shows live orders, inventory levels and basic user management. Clean, modular code, TypeScript throughout, Sequelize or TypeORM is fine for the data layer as long as migrations are included. Please package the project with a short README covering environment variables, build commands and how to seed a fresh database so I can spin up staging quickly. Acceptance will be based on: • A working REST/GraphQL API that passes Postman tests for orders, users and inventory ...

    €1863 Average bid
    €1863 Keskimäär. tarjous
    321 tarjoukset

    I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life. For the first release only administrators will log in, manage artist records, and review user activity, so the UI can stay focused on that role. Here’s what I need built over the next 4-6 weeks: • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with login, refresh, and clean handling of loading or error states • Admin dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • Seamless API integration via Axios or Fetch, wired to the endpoints I’ll supply • File upload flow (ideally prepared for S3 or DigitalOcean Spaces later) &...

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

    I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life. For the first release only administrators will log in, manage artist records, and review user activity, so the UI can stay focused on that role. Here’s what I need built over the next 4-6 weeks: • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with login, refresh, and clean handling of loading or error states • Admin dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • Seamless API integration via Axios or Fetch, wired to the endpoints I’ll supply • File upload flow (ideally prepared for S3 or DigitalOcean Spaces later) &...

    €9 / hr Average bid
    €9 / hr Keskimäär. tarjous
    28 tarjoukset

    I have a fully functional ASP.NET Core API ready to go and now need the React layer that brings it to life. For the first release only administrators will log in, manage artist records, and review user activity, so the UI can stay focused on that role. Here’s what I need built over the next 4-6 weeks: • A responsive React interface (hooks, functional components, TypeScript) • Secure JWT authentication with login, refresh, and clean handling of loading or error states • Admin dashboard pages for viewing and editing artist profiles, uploading images, and browsing gallery thumbnails • Seamless API integration via Axios or Fetch, wired to the endpoints I’ll supply • File upload flow (ideally prepared for S3 or DigitalOcean Spaces later) &...

    €531 Average bid
    €531 Keskimäär. tarjous
    59 tarjoukset

    I’m at the last hurdle of adding Apple In-App Purchases to an existing React Native app. The subscription logic on the server is already solid; what’s missing is a clea...end-to-end testing (TestFlight + production) until the build clears App Store review. Acceptance criteria • Purchases succeed against the live App Store environment and receipts are delivered to the backend. • Subscription renewals, restores and cancellations are reflected in the UI in real time. • The binary is approved by Apple without IAP-related issues. Tech stack React Native, TypeScript, react-native-iap, App Store Connect, Xcode / TestFlight. If you have shipped React Native apps with production-ready Apple IAP before, I’d love your help getting this release over t...

    €344 Average bid
    Salassapitosopimus
    €344 Keskimäär. tarjous
    38 tarjoukset

    I’m assembling a freelance roster of seasoned Solana engineers to push a new decentralised application from idea to mainnet. The role centres on end-to-end DApp development: writing and auditing on-chain Rust programs, wiring them to a TypeScript/React front-end through Anchor or @solana/, and handling deployment, testing and optimisation so the final product is fast and fee-efficient. If you have shipped production Solana work before, please include links or GitHub repos that clearly show what you built and the parts you owned. I’ll review those examples first to decide who moves forward. We will work milestone-by-milestone; as soon as the initial scope is delivered (fully functional features, commented code, concise hand-off docs), I have follow-up tasks ready. Comfo...

    €969 Average bid
    €969 Keskimäär. tarjous
    51 tarjoukset

    I maintain a Node.js / TypeScript code-base that submits Jito bundles to the Solana network at high frequency. The current version works, yet under heavy load it saturates network bandwidth, slows slot confirmation, and leaves a larger attack surface than I’m comfortable with. I’d like you to jump in, profile the pipeline, and return an implementation that is measurably better across three axes—performance, scalability, and security. What performance means here is simple: bundles must reach the leader faster so more of them land profitably. I’m especially keen on lowering the chatter between my service and Jito’s relays so network bandwidth is used far more efficiently. You’ll have full access to the existing TypeScript modules, aggregato...

    €30 Average bid
    €30 Keskimäär. tarjous
    16 tarjoukset

    ...integrazioni AI). Lavorerai a stretto contatto con i CEO e con il Responsabile Marketing, con ownership end-to-end su analisi, stime, implementazione e rilascio. In particolare: Presa in carico e stabilizzazione del CRM in produzione (bugfix, miglioramenti, nuove feature). Sviluppo e manutenzione di backend/API in Laravel 12 (architettura, sicurezza, performance). Sviluppo frontend in Vue.js + TypeScript (componenti, state management, UX operativa). Gestione completa delle feature: analisi → DB → backend → UI → test → rilascio. Miglioramento qualità del codice: refactoring mirato, code review, standardizzazione, test (Pest). Gestione ambienti e rilascio: Docker, Nginx, basi di CI/CD (plus: cloud AWS o equivalente). Collaborazione con reparti in...

    €2159 Average bid
    €2159 Keskimäär. tarjous
    59 tarjoukset

    ...general-purpose web application with a strong focus on clean front-end interactions and a reliable back-end architecture. The technology stack is intentionally simple and practical: TypeScript on the client side and Python on the server side. I handle product direction and overall architecture, and I’m looking for a Russian-speaking freelance developer who can work as a true full-stack partner. The work spans the entire stack—one day refining a React component, the next implementing a FastAPI endpoint, and occasionally helping shape core backend workflows. What I’m looking for Strong experience with TypeScript and modern front-end frameworks such as React, , or similar, along with current tooling and best practices. Solid Python skills and hands-on ex...

    €19 / hr Average bid
    €19 / hr Keskimäär. tarjous
    194 tarjoukset
    API-First Trust System MVP
    5 päivää left
    Varmennettu

    I need a backend engineer to turn my spec into an MVP that exposes a clean, API-first trust and reputation service for autonomous AI agents. The entire product lives server-side—no front-end work at all—so every feature must be reachable through intuitive, well-documented endpoints. Core requirements • Stack: your choice of FastAPI (Python) or Node (TypeScript), backed by Postgres, containerised with Docker, and wired to Stripe for billing events. • Auth: simple, robust API Key flow; keys must be generated, stored, and validated on every request. • Scoring logic: compute each agent’s trust score solely from its interaction history, according to the formulas in the spec. Performance metrics or direct user feedback are outside this first itera...

    €219 Average bid
    €219 Keskimäär. tarjous
    170 tarjoukset
    B2B Sales Intelligence Chrome Extension
    5 päivää left
    Varmennettu

    ...--- 5. Payments & Subscriptions * Subscription-based monetisation. * Prefer **Stripe Checkout** or **ExtensionPay** (open to recommendation). * Monthly pricing tiers (e.g. Pro / Team). * Extension must: * detect paid users * unlock paid features * enforce usage limits for free users --- Technical Requirements **Required** * Chrome extension development (Manifest V3) * JavaScript or TypeScript * API integrations (enrichment / email discovery services) * Backend or serverless setup for API calls and usage tracking * Stripe or ExtensionPay integration **Nice to Have** * Experience with B2B SaaS or lead-gen tools * Prior Chrome Web Store submissions * Clean, scalable codebase -- Privacy & Compliance * Use only public, user-visible data. * No scraping behind log...

    €900 Average bid
    €900 Keskimäär. tarjous
    196 tarjoukset
    React JS Development Support
    5 päivää left
    Varmennettu

    I have a React-based front-end project that n...will share the design assets—or sketches, if that is all I have at the moment—once we start so you can translate them into responsive, accessible UI. The deliverable I expect at each milestone is the full source code in a Git repository, clear commit messages, and a short README that explains how to install dependencies and run the project in development and production modes. If you prefer TypeScript, Redux Toolkit, React Query, or another modern stack, let me know—there’s plenty of room to decide on the best tools together. If this sounds like a good match, please tell me a bit about a recent React project you completed and any libraries or patterns you enjoy using. I’m eager to start as soon as we agr...

    €66 Average bid
    €66 Keskimäär. tarjous
    28 tarjoukset

    ...with status updates, transaction ledger, and a lightweight reports view. • POS: rapid item entry, dynamic cart, split-payment checkout, shift open/close modal, and receipt/order print preview routed to a printer endpoint. Tech context The backend (Node.js, PostgreSQL, payments) is live and documented; you will consume REST/JSON endpoints from React. Feel free to author in plain JavaScript or TypeScript, but React is mandatory. Bonus points if you can configure PWA/Electron wrappers or handle offline queueing for the POS. Proof-of-experience requirement Send links, demos, or redacted screenshots of previous admin dashboards or checkout/POS work. Submissions without evidence will be skipped. What to include in your proposal 1. Portfolio links or demo credentials. 2. A b...

    €434 Average bid
    €434 Keskimäär. tarjous
    234 tarjoukset

    ...change RTP settings per title. An RNG that can be certified is essential, as is clean, well-documented code that my own dev team can later extend. Progressive jackpots are not required at this stage, but keep the architecture flexible so we can bolt that on later without a rewrite. Feel free to use any proven game framework or engine you are comfortable with—Phaser, PixiJS, Unity or custom HTML5/TypeScript—so long as performance stays smooth on mobile and desktop browsers. It should play smoothly on the computer. Deliverables: • Source code for each cloned Pragmatic slot, ready to compile or deploy • Admin panel for balance management, player logs and RTP control • Integration guide and short video walkthrough of the build & config pipeline ...

    €1836 Average bid
    €1836 Keskimäär. tarjous
    106 tarjoukset
    Estate Agent Insights Hub Creation
    5 päivää left
    Varmennettu

    ...links. • Activity history. • Advanced charts. • CRM integrations. • Webhook-based syncing. UX / UI Requirements • Clean, modern SaaS look. • Extremely simple for non-technical users. • Progressive disclosure of advanced fields. • Fast loading. • Excellent empty/error states. • UK-specific formatting. • Accessible and keyboard-friendly. Technical Requirements Architecture • Front-end: React + TypeScript ( acceptable). • UI framework: Tailwind / MUI or similar. • Optional backend proxy for: o API key security. o Caching. o Logging. o Rate-limit handling. • Maps: Mapbox / Google Maps / Leaflet (if included). Engineering Standards • Typed OpenAPI client preferred. • Pagination + retry/backoff impl...

    €2774 Average bid
    €2774 Keskimäär. tarjous
    92 tarjoukset

    ...should be presented to the user afterwards. The input data format to describe buildings and floors is as defined in the '' file. Please make the backend parse a file in that format. Feel free to choose a suitable data structure to store the buildings and floors in an efficient manner. You can make use of a database. Storing the data in memory is fine for this task. Please use Typescript (Node.js and Angular) for the implementation. We suggest keeping it simple. Include a short description on how to run your project. Furthermore, please write a short document explaining any additional work that would be required to turn your solution into a production application that could be exposed publicly on the internet. If your code requires compilation, you do not need to include...

    €20 Average bid
    €20 Keskimäär. tarjous
    33 tarjoukset
    Web and Mobile App Development
    5 päivää left
    Varmennettu

    ...optional) Create DB schema + migrations Wire core CRUD / server actions Ensure basic security, validation, and access control Set up env vars correctly (Vercel) Deploy to production (Vercel) Hand over a clean, working MVP You will not: Redesign UX Debate frameworks Build enterprise-grade abstractions Add speculative features Tech Stack (fixed) You must be very comfortable with: (App Router) TypeScript Tailwind CSS Supabase (Auth, Postgres, RLS) Vercel GitHub + PR-based workflow Bonus (nice to have): shadcn/ui Stripe basics Framer Motion Experience working from UI prototypes What “Good” Looks Like You can take a prototype and finish it without hand-holding You understand what matters for an MVP and what doesn’t You don’t break security while moving fas...

    €39 / hr Average bid
    €39 / hr Keskimäär. tarjous
    295 tarjoukset
    Etsy AI Listing Optimizer Extension
    5 päivää left
    Varmennettu

    ...subscription gate that unlocks premium suggestions once the daily free quota is reached (Stripe, Lemon Squeezy or Paddle are all fine—pick the one you’re fastest with). • Plan management and metering handled server-side so quota limits cannot be bypassed. • Chrome Web Store-ready packaging (Manifest V3, review-friendly permissions, icons, screenshots). Clean architecture matters to me. Use TypeScript, React (or Svelte) and keep everything linted, documented and containerised for simple hand-off. The back-end can be Node/Express or Cloud Functions; just make sure it scales. Acceptance criteria 1. One-click optimisation works for titles, descriptions, tags and price. 2. Freemium limits trigger correctly and premium upgrades unlock instantly. 3....

    €897 Average bid
    €897 Keskimäär. tarjous
    235 tarjoukset

    ...2. Scheduler/orchestration engine 3. Structured data collection and storage 4. Deep data capture workflows 5. Administrative frontend for configuration and monitoring 6. AWS deployment (EC2-based) 7. Logging, concurrency handling, and error management Detailed specifications, BRDs, and proof-of-concept scripts will be provided to shortlisted vendors after NDA. Tech expectations: 1. Node.js / TypeScript 2. Playwright or Puppeteer 3. MySQL/PostgreSQL 4. React frontend 5. AWS deployment 6. Process management (PM2 or similar) This is a production system, not a prototype. Please respond with: 1. Fixed-price quote 2. Timeline 3. Relevant experience 4. Team structure 5. Assumptions Shortlisted vendors will receive full documentation....

    €5642 Average bid
    Salassapitosopimus
    €5642 Keskimäär. tarjous
    212 tarjoukset

    ...and moderation system. Core Features • Video approval / rejection workflows • Global video deletion capability • User and brand management • Manual subscription assignment via email • Brand verification badge control • Platform settings (Logo upload, favicon upload, theme settings) • Category management (Fashion only vertical) --- Technology Requirements Frontend: (Latest Stable) TypeScript Tailwind CSS Shadcn UI or Equivalent Enterprise UI System Backend: Firebase (Authentication + Firestore) or Equivalent Scalable Backend Video Infrastructure: Bunny CDN Integration (Primary Video Storage + Delivery Layer) Deployment: Vercel / Cloud Production Ready --- Performance Expectations • Sub-2 second page load • Mobile-first optimi...

    €609 Average bid
    €609 Keskimäär. tarjous
    57 tarjoukset

    ...sign-in, and token refresh flows against our backend. 3. Push notifications delivered in foreground and background, with user-tappable actions routed correctly. 4. Purchase flow completes, receipts are validated server-side, and test purchases appear in sandbox/alpha tracks. 5. Store-ready builds plus a short README explaining environment vars, build commands, and release steps. I prefer TypeScript, React Navigation, and either Context API or Redux for state, but I’m flexible if you present a solid alternative. Regular Git commits, a brief weekly video demo, and responsive communication are expected so we can iterate quickly. Send a short note describing similar React Native apps you’ve shipped and any experience you have with in-app purchases or push servic...

    €9 / hr Average bid
    €9 / hr Keskimäär. tarjous
    62 tarjoukset

    ...and role-based access control Developed analytics module with PDF reporting Optimized performance using lazy loading and API caching Tech Stack: React 18, TypeScript, FastAPI, WebSockets, JWT, PostgreSQL, AI APIs PRIDE – AI-Powered Content Studio Role: Frontend / Full Stack Developer Designed dynamic template management and real-time PDF preview system Developed responsive UI using Tailwind CSS and Framer Motion Implemented accessible components with ARIA standards Managed application state using React Hooks and Context API Integrated dark/light mode theming Optimized rendering using and useCallback Tech Stack: React, TypeScript, Tailwind CSS, Framer Motion, Context API Smart Lock System (IoT Project) Developed RFID-based secure access system using Raspberry Pi Pi...

    €8 / hr Average bid
    €8 / hr Keskimäär. tarjous
    38 tarjoukset
    Driver App with Waze Integration -- 3
    4 päivää left
    Varmennettu

    ...to the app afterward. • Safety & compliance: the driver can file an Incident/Accident report at any point, attaching photos, notes and a timestamp. Webplatform/Dashboard/Reports. Real -time map view of the drivers. Driver manager section Facilities manager section Cars management section Routes management section Incident/Accidents management section Deliverables 1. React Native source (TypeScript preferred) structured for iOS and Android builds. 2. Clean, commented code for Face ID / fingerprint / password flows plus license-photo comparison. 3. Waze integration module with sample trip hand-off and callback handling. 4. Simple UI for pre-trip checklist and incident reporting stored locally (basic SQLite or on-device storage is fine). 5. Build & run in...

    €354 Average bid
    €354 Keskimäär. tarjous
    185 tarjoukset

    ...iOS/Android Overview We’re looking for a senior engineer to build, optimize, and scale a property-management web application and deliver native-quality mobile apps for iOS and Android. You’ll take ownership end-to-end: architecture, performance, security, release pipelines, and ongoing product development. Responsibilities • Build and maintain the web app (admin + owner/tenant portals) using React/TypeScript. • Design and implement backend services using FastAPI (Python) and REST APIs. • Integrate and optimize data layer (e.g.,) • PostgreSQL/Supabase/PostgREST or equivalent). •Develop mobile apps for iOS + Android using React Native (preferred) or Flutter/native, including: • Authentication • Push notifications • Offline/poor-...

    €17 / hr Average bid
    €17 / hr Keskimäär. tarjous
    197 tarjoukset
    Apify Web Data Scraper
    4 päivää left
    Varmennettu

    I need an Apify actor that crawls a single website and delivers two things for every page. You can use Puppeteer, Playwright or any other Apify helper library that keeps the run stable and fast. Here’s how I see the workflow: • I’ll share the target domain, URL pattern, and the exact text blocks I care about. • You create or fork an Apify actor in JavaScript/TypeScript, configure the request queues, handle pagination where needed, and store results in a dataset. • The final dataset should export cleanly to JSON and CSV, and the image URLs should be downloadable in bulk (a simple link list or an Apify key-value export is fine). • When the crawl completes, I want a brief README so I can rerun it myself later without touching the code. Acceptan...

    €8 Average bid
    €8 Keskimäär. tarjous
    12 tarjoukset

    ...and database layers who can translate that depth into clear, structured technical training sessions. Your core mission is to design and deliver training that sharpens our developers’ practical skills. Expect to break down real project scenarios, walk through architectural decisions, explain code quality best practices, and answer ad-hoc questions as they come up. We work mostly with JavaScript/TypeScript, React, Node.js, and PostgreSQL, so fluency in these (or closely related stacks) will help you connect quickly with the team. Deliverables • A short training plan outlining topics, session length, and learning objectives • Live or recorded sessions (remote is fine) with interactive Q&A • Lightweight reference material or code snippets that reinforce...

    €46 / hr Average bid
    €46 / hr Keskimäär. tarjous
    108 tarjoukset

    I’m maintaining a news-focused application built with Angular and TypeScript, and a few irritating layout bugs are spoiling the user experience. Cards slip out of their grid, headers overlap at certain breakpoints, and some components ignore the flex settings meant to keep them tidy. My priority is to track these issues down, clean up the CSS/SCSS, and adjust any component code that’s contributing to the problem so every page renders predictably on desktop and mobile in Chrome, Firefox, Edge, and Safari. You’ll have Git access, a straightforward npm install/ ng serve workflow, and quick feedback from me as you submit fixes. Please deliver a tidy commit (or PR) with clear comments explaining what changed and why, so I can review, merge, and deploy with confidence.

    €11 Average bid
    €11 Keskimäär. tarjous
    32 tarjoukset

    Project: Swiss Services Marketplace Platform Tech Stack: ∙ Frontend: React 18, TypeScript, Vite, Tailwind CSS ∙ Backend: Supabase (PostgreSQL, Auth, Storage, Edge Functions) ∙ Deployment: Vercel (planned) Current Status: ~80% complete, built with Lovable (AI development tool) Scope of Work: 1. Migration (Critical) ∙ Migrate from Lovable’s Supabase to own Supabase instance ∙ Transfer all database schema and data ∙ Update all API connections ∙ Ensure everything works independently from Lovable 2. Bug Fixes (Critical) ∙ Profile editing not working ∙ Photo upload issues ∙ Verification flow fixes ∙ GPS/Location search not working correctly ∙ Filter functionality broken ∙ Image staging/processing not working properly 3. Database Fixes ∙ Swiss cities data incomplete/inc...

    €426 Average bid
    €426 Keskimäär. tarjous
    254 tarjoukset

    Role: Full Stack Software Engineer (Frontend) Key Responsibilities • Develop, deploy, and maintain user interfaces using React (Native) and Typescript • Implement designs for web apps and embeddable widgets, ensuring responsive and modern UI • Create embeddable widgets for our internal web applications • Support Teams bot with adaptive card design • Assist with implementation and management of CI/CD pipelines for automated cloud deployments • Collaborate with our backend and agent build teams • Enable the team to work autonomously by documenting and transferring knowledge Required Skills & Experience • Strong React (Native) + Typescript skills • Demonstrated portfolio or code examples of previous work • Strong exper...

    €5 / hr Average bid
    €5 / hr Keskimäär. tarjous
    33 tarjoukset
    Payroll Processing App Development
    4 päivää left
    Varmennettu

    I want to build a payroll processing app for internal purposes only using: 1. Vercel → frontend + API 2. Supabase → database + auth + storage 3. Stripe → payments **Summary: The Essential Skill Set** Must know: ### **Languages** - TypeScript - JavaScript - SQL (Postgres) ### **Frontend** - React - - TailwindCSS ### **Backend** - Node.js - Supabase SDK - Stripe SDK ### **Security** - RLS - JWTs - Web security basics

    €160 Average bid
    €160 Keskimäär. tarjous
    207 tarjoukset

    ...building modern web apps Ability to work independently and make smart technical decisions Clean, maintainable code Experience deploying and working with platforms like Netlify and understanding of a headless CMS Proven portfolio or previous client work (quality matters more than quantity) Existing portfolio of code examples on git / cloud repositories Must-have technical skills: JavaScript and Typescript VueJS NuxtJS Vuetify or other UI frameworks CRUD operations NodeJS environment Unit testing Mocha / Chai AWS, Netlify Understanding of using, setting up a headless CMS Very Important Solid UX sensibility You don’t need to be a pure designer, but you must understand: intuitive flows friction reduction clean, calming interfaces mobile first design accessibility Nice to ha...

    €1141 Average bid
    €1141 Keskimäär. tarjous
    201 tarjoukset
    Full-Stack Product Support
    4 päivää left
    Varmennettu

    ...rather than a one-time build, including frontend UI enhancements, admin panel updates, backend logic updates using Python, and API integrations with internal and third-party services. Experience working across both frontend and backend systems, including Python-based backends with REST/JSON APIs and relational databases (such as SQLite or PostgreSQL). On the frontend, familiarity with Svelte, TypeScript, and modern CSS frameworks like Tailwind CSS is a plus. The pay rate is open right now so please provide your proposed pay rate. As the product grows, support may scale or expand to additional resources to help accelerate development in specific areas....

    €420 Average bid
    €420 Keskimäär. tarjous
    181 tarjoukset

    ...the end of every month. This arrangement is strictly for individual freelancers; please do not apply through an agency or collective. Day-to-day you will: • Build brand-new features in our existing codebase • Maintain and refactor components to keep performance high and tech debt low • Trace, reproduce, and squash bugs before they reach production The stack you’ll touch includes TypeScript, Tailwind CSS, Git/GitHub, and a mix of REST and GraphQL endpoints, with UI references coming from Figma. Clean, tested, and well-commented commits pushed via pull-request at least once per day form the basic acceptance criteria. If you have 0-2 years of experience and want steady, disciplined work that will grow your skills on production apps, this role should fi...

    €93 Average bid
    €93 Keskimäär. tarjous
    37 tarjoukset

    I’m kicking off an intense 30-day, around-the-clock push to prove a rugged, offline-first edge-computing stack that ingests live video streams and RF sensor feeds, runs lightweight Edge AI...hardware, watch video and RF feeds roll in, see fused tracks refresh in <1 s, and receive alerts when thresholds trip. I’ll need reproducible build scripts (Docker-compose or k8s), concise documentation, and a short screen-capture walkthrough of the working demo. We’ll move fast: daily stand-ups, GitHub issues, rapid code reviews, CI/CD with self-hosted runners. Go, Rust, or C++ back-end plus a TypeScript/React front-end is my preference, but I’m flexible if you can hit the performance bar. Tell me which slice of the stack you want to own and how you’ll lead it...

    €18 / hr Average bid
    Kiireellinen
    €18 / hr Keskimäär. tarjous
    41 tarjoukset

    ...JavaScript / TypeScript web apps to AI-driven services. Code, architecture, and execution are covered on my end. What I need now is a long-term counterpart who will own the client relationship from first conversation through delivery sign-off. Here’s the fit I’m after: you have an engineering background yet now thrive in a communication-heavy or project-management capacity. You can translate business goals into clear technical requirements, keep stakeholders engaged, set realistic timelines, and surface risks early. While I’m deep in VS Code and CI pipelines, you’ll be the trusted voice our clients hear. Scope of work • Lead all client meetings: discovery, status, demos, retrospectives • Write concise briefs, SOWs, and milestone plans that ...

    €372 Average bid
    €372 Keskimäär. tarjous
    85 tarjoukset

    I need an AI-powered finance chatbot that runs on GPT-4o and lives inside a clean, modern web app. You’ll create the React/ front end with ShadCN components, design the conversational flow, and connect everything to a secure Python back end that calls the GPT endpoint. The system must handle user authentication, store chat history in a database, and follow best practices for encrypting and validating any sensitive financial data. Deliverables • Responsive chat UI and supporting pages built with ShadCN • Python (FastAPI preferred) API that proxies GPT-4o, logs context, and rate-limits requests • Database integration—PostgreSQL or similar—for users, sessions, and prompts • Prompt-engineering layer that lets us adjust tone and compliance rules ea...

    €108 Average bid
    €108 Keskimäär. tarjous
    105 tarjoukset

    ...Azure SQL .bacpac into a PostgreSQL dump and import it into Supabase. • Preserve all tables, relationships, seeded data, and indexes. 2. API migration • Re-implement the existing .NET endpoints as either Server Actions or /api routes inside my current repo. • Match request / response contracts one-to-one so the front-end continues to function with zero changes. • TypeScript strongly preferred for new code. 3. Auth & environment wiring • Hook our Clerk authentication up to the new Supabase database. • Provide . and any Supabase/Clerk keys I need to define when deploying on Vercel. 4. How-to guide • A concise markdown file that shows me, a solo founder, how to spin up the project locally, deploy it ...

    €1269 - €2539
    Sinetöity Salassapitosopimus
    €1269 - €2539
    46 tarjoukset

    I’m midway through a full-stack build that uses Angular on the front en...hours. During those sessions you’ll give hands-on technical support across both the frontend and backend as requirements arise—code reviews, quick bug fixes, or rolling out a new feature on the spot. The workflow is straightforward: • We connect at the agreed time, walk through the current ticket, and pair-program or review code together. • You suggest clean, idiomatic solutions in Angular (TypeScript), Flask (Python 3), and SQL/ORM for Postgres. • Before we sign off, the code should run locally, pass existing tests, and be committed to the repo. If you’re comfortable context-switching between UI components, REST endpoints, and database tweaks—and you enjoy ti...

    €91 Average bid
    €91 Keskimäär. tarjous
    13 tarjoukset
    Solana Automated Trading Volume Monitor
    2 päivää left
    Varmennettu

    ...endpoints) with sub-second latency • Simple, configurable rules where I can define the target markets, volume threshold, order size, and slippage tolerance • Auto-trade execution through a DEX of your choice (Jupiter, Serum, or Orca are fine as long as you justify the choice) • Fail-safe logic: no double orders, proper error handling, and an instant stop switch • Clear, commented code (Rust or TypeScript preferred), plus a README that lets me install, set environment variables, and run the bot on my own VPS or local machine Delivery is complete when I can: 1. Launch the bot, see it subscribe to live trading-volume feeds, and detect a spike. 2. Watch it place a test order on a devnet pair, logging TX hashes. 3. Adjust settings in a single config ...

    €422 Average bid
    €422 Keskimäär. tarjous
    42 tarjoukset

    ...seamless podcast workflow: episodes must land in the correct playlists or folders whether they arrive through a manual upload in the dashboard or are pulled automatically from an RSS feed. From there, the station should place each show on air by reading the episode’s release date and then slotting it into my pre-defined time blocks without manual intervention. AzuraCast is written in PHP with Vue, TypeScript, Shell scripts, SCSS and plain HTML, so you’ll be diving straight into that codebase. I value clean, readable commits and quick turnaround; you’ll be paid per feature and this can evolve into an ongoing stream of tasks if we click. I got a web app based radio automation to stream and manage my internet radio station "Eternity Ready Radio". The we...

    €41 Average bid
    €41 Keskimäär. tarjous
    77 tarjoukset

    I need a clean, reliable Playwright script that talks directly to a set of REST-style endpoints and pulls down court-related case details. Each response comes with structured text plus one or more PDF documents; I want both captured in a single pass. Here is what the finished job looks like to me: • Script written in JavaScript or TypeScript using Playwright’s request context (no headless browser pages unless an auth flow truly requires it). • Auth handled programmatically—token refresh, headers, or cookies—so the run stays unattended. • Pagination or “next-page” parameters followed until no records remain, with graceful back-off to respect any rate limits. • For every case, text fields saved to a consolidated JSON or CSV f...

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

    ...so visuals and counts match data. Acceptance: all junction-related specs pass (tests/junctions, tests/spline, tests/connection), auto-generated junctions stay consistent when splines move/remove, no orphan links/meshes after deletion. Codebase touch points: , services/junction/*, map/models/junctions/*, , tools/junction/*. Required Skills Angular 12 + TypeScript: comfortable with strict typing, services/modules, RxJS, and change detection patterns in large apps. & WebGL: able to debug and extend custom BufferGeometry/mesh generation, bounding boxes, and scene graph updates. Computational geometry & road networks: experience with splines (Bezier/Catmull), intersection detection, lane topology, and OpenDRIVE-like models (links, lane sections,

    €448 Average bid
    €448 Keskimäär. tarjous
    41 tarjoukset

    ...data layer is flexible (JSON file, REST endpoint or GraphQL); just expose clear TypeScript interfaces so I can swap in my final database later. Pages must stay 100 % SSR-friendly to preserve SEO. Deliverables 1. Search and results components ready to drop into /pages/properties. 2. Map component with location pins and hover detail. 3. Review & rating module with add, edit and delete hooks. 4. Brief README explaining component props, environment variables and any third-party keys. Acceptance criteria – Filters return the correct subset on every combination of selections within 200 ms on a sample data set of 1,000 records. – Page Lighthouse score stays above 90 for performance and SEO. – All TypeScript passes strict mode. – No br...

    €410 Average bid
    €410 Keskimäär. tarjous
    220 tarjoukset
    n8n News Aggregator Agent
    2 päivää left
    Varmennettu

    ...duplicates, and passes the results to an AI step that writes a concise English summary and produces an accurate Arabic counterpart. Everything is then pushed to a simple public page or email like google alerts showing URL, title, and the two-language summary. Deliverables • n8n workflow file (.json) with annotated nodes (I will give you access to my n8n account if needed) • Any custom JavaScript/TypeScript or HTTP requests used for scraping or API calls • Auto-generated web page (or CMS integration) ready to publish, styled minimally • README with setup steps, credentials needed, and how to add or swap sources Acceptance criteria • Workflow runs autonomously every 12 hours without manual restart • Pulls from AI-recommended feeds plus my prov...

    €51 Average bid
    €51 Keskimäär. tarjous
    56 tarjoukset

    Set up Firebase infrastructure and write clean TypeScript Cloud Functions. Requirements Project Setup Create a new Firebase project Initialize Cloud Functions with TypeScript Configure Firestore database Set up proper project structure Cloud Functions 1. Create Session HTTP endpoint to create a new session Generates unique session ID Accepts region parameter (e.g., "eu-central", "us-east") Stores in Firestore with: sessionId region status (default: "pending") createdAt timestamp updatedAt timestamp Returns the created session object 2. Get Session HTTP endpoint to retrieve a session by ID Returns session data or appropriate error if not found 3. Update Session Status HTTP endpoint to update a session's status Valid statuses: "pend...

    €18 Average bid
    €18 Keskimäär. tarjous
    27 tarjoukset

    ...checking Stripe payment system (credits-based) User dashboard and admin panel Tech Stack (Required) Frontend: 14 (App Router) TypeScript Tailwind CSS + shadcn/ui Backend: API Routes PostgreSQL Redis + Bull (job queue for async processing) Third-Party Services: OpenAI GPT-4 AWS Polly Stripe CMU Pronouncing Dictionary / NLTK (phoneme analysis) Deployment: Vercel What We Provide Complete technical specification with algorithm formulas Database schema (PostgreSQL) Report template with full design Sample data (industries, personalities, test names) API keys (OpenAI, AWS Polly, Stripe) Required Skills Must Have: 5+ years full-stack JavaScript/TypeScript experience Strong experience (App Router preferred) PostgreSQL expertise Stripe integration experience PDF generation ...

    €551 Average bid
    €551 Keskimäär. tarjous
    269 tarjoukset

    ...never exposed to the client. You must provide clear documentation for which variables are required. Client-Side Integration: Update the handleAction function in src/app/admin/withdrawals/ to call your new Server Action. The UI must be updated to reflect the real transaction ID on success or display a specific error on failure. Required Expertise Expert Level: (App Router), React, TypeScript Expert Level: API Integration & Security Best Practices Strong Experience: Firebase (Firestore & Server-Side Actions) Proven Experience: Integrating at least one cryptocurrency payment gateway (e.g., Binance API, Stripe, Coinbase Commerce). Project Details Engagement Model: This is a fixed-price project. Timeline: The project has a firm deadline and is expected to be completed within ...

    €1872 Average bid
    €1872 Keskimäär. tarjous
    75 tarjoukset

    Suosituimmat typescript -yhteisöartikkelit