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    5,000 spring jpa löydetyt työt
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    java spring hibernate rest activemq

    €1193 Average bid
    €1193 Keskimäär. tarjous
    15 tarjoukset

    ...tags, returning results quickly even with a large data set. • Resume upload & management – secure storage of résumés (PDF/Doc), profile editing, and version control for candidates. • Employer dashboard – tools for posting jobs, reviewing applicants, and tracking application status in real time. I’m happy to integrate whichever mainstream Java stack you’re most comfortable with (for example, Spring Boot, Jakarta EE, or Micronaut) as long as the final code is clean, documented, and easy to extend. RESTful APIs, clear separation of concerns, and unit tests are expected for each module. Acceptance criteria 1. All three modules compile and run error-free in a fresh clone of the repository. 2. Functions are accessible thro...

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

    I’m building a new mobile application and I need a robust Java Spring Boot backend to power it. The core services you’ll create must cover: • User authentication and management with full multi-factor authentication (MFA) and support for future multi-party authentication flows. • A streamlined customer-onboarding journey that begins with registration and ends with a verified, fully profiled user record. • Reliable data storage and retrieval using a relational engine—MySQL or PostgreSQL, whichever you are most comfortable optimising. RESTful APIs should be documented with Swagger/OpenAPI, secured with JWT or a similarly strong token strategy, and thoroughly unit- and integration-tested. I’ll provide the mobile team’s contract-firs...

    €6 / hr Average bid
    €6 / hr Keskimäär. tarjous
    26 tarjoukset

    ...ingest new orders automatically, send accept/cancel actions, print kitchen tickets, and post order status back when the meal is ready. • Delivery status updates: map partner status codes to ours and stream them into the existing tracking panel until the order is completed. The core codebase is Java 17 with a Spring Boot backend, REST/JSON, and MySQL. I will provide API credentials, current entity models, and a staging environment. Your integration should arrive as a clean, documented Spring module with service tests so I can drop it into production after review. Must have a prior experience. ...

    €88 Average bid
    €88 Keskimäär. tarjous
    25 tarjoukset

    - **Core Architecture:** Spring Cloud + Kafka + Hadoop + Python Automation,This project requires a certain level of technical expertise.

    €15 Average bid
    €15 Keskimäär. tarjous
    13 tarjoukset

    - **Core Architecture:** Spring Cloud + Kafka + Hadoop + Python Automation,This project requires a certain level of technical expertise.

    €351 Average bid
    €351 Keskimäär. tarjous
    20 tarjoukset

    ...full-time remote agent to call existing clients and new warm leads generated from our ads. This is a 3–5 month full-time contract position (spring/summer season), with the potential for long-term work if it’s a strong fit. All calls are to: • Existing customers (renewals, seasonal cleanups, upsells) • Inbound leads from Facebook/Google ads • Homeowners who have already shown interest This is NOT cold calling and NOT aggressive selling. Your role is to confirm service needs, answer basic questions, and book clients into our system. Day-to-Day Responsibilities: • Call new leads quickly after they submit their request • Follow up with past clients for spring cleanups & service renewals • Schedule jobs inside GoHighLevel / Job...

    €4 / hr Average bid
    €4 / hr Keskimäär. tarjous
    15 tarjoukset

    Busco...Arquitectura robusta con API REST bien documentada. • Modelo de datos que permita crear, asignar, actualizar y cerrar tareas; registrar tiempos y responsables; generar estados de avance. • Autenticación y control de roles (admin, supervisor, operario). • Endpoints optimizados para reportes en tiempo real y paneles de KPI. • Entorno listo para escalar (idealmente Node.js + Express o Java Spring; estoy abierto a otros stacks si justificas ventajas). • Pruebas unitarias y de integración básicas, así como guía breve de despliegue en cloud (AWS, Azure o similar). Valoraría experiencia previa en sistemas empresariales y buenas prácticas de seguridad y performance. Entregable: repositorio en Git ...

    €308 Average bid
    €308 Keskimäär. tarjous
    56 tarjoukset
    €23 Keskimäär. tarjous
    28 tarjoukset

    ...Total production Yard-wise performance Expenses vs production Stock at each yard Stock at each stockyard Charts: Daily production Yard comparison Monthly report Technical Requirements Android app (priority) Cloud backend Web admin dashboard Role-based login Real-time sync Offline entry + later sync Secure data Preferred tech (open to suggestion): Flutter / React Native Node.js / Spring Boot Firebase / AWS MySQL/PostgreSQL Deliverables Android app Backend APIs Admin dashboard (web) UI/UX design Deployment Source code Documentation Future Scope (Phase 2) GPS tracking Photo upload Labour attendance WhatsApp reports Billing module This project can become long-term with continuous upgrades. What to Include in Proposal Please share: Tech stack yo...

    €876 Average bid
    €876 Keskimäär. tarjous
    56 tarjoukset

    ...new modules and advanced functionality. What You’ll Work On You’ll be responsible for backend feature development and system enhancements, including: * Building and enhancing REST APIs using Java + Spring Boot * Designing scalable business logic and service layers * Working closely with the front-end team to support new features * Integrating with MongoDB databases * Handling authentication, authorization, and data security * Improving performance and system reliability * Deploying and managing services in AWS * Maintaining clean version control using GitHub Tech Stack (Must Have) * Java * Spring Boot * React.js (good understanding for API coordination) * MongoDB * AWS * Git / GitHub What We Expect * Strong experience in building production-grade APIs * Abil...

    €83 Average bid
    €83 Keskimäär. tarjous
    31 tarjoukset

    I'm seeking an experienced backend developer for API development. Key Requirements: - Expertise in API development - Proficiency in at least one of the following: Node.js, Python (Django/Flask), Java (Spring) - Strong understanding of server-side logic and database management Ideal Skills: - Experience with RESTful, GraphQL, or SOAP APIs - Ability to design and implement efficient, scalable APIs - Knowledge of security best practices in API development - Excellent problem-solving skills and attention to detail Please provide examples of previous work and relevant experience.

    €80 Average bid
    €80 Keskimäär. tarjous
    50 tarjoukset

    Objective: Develop a Spring Boot web application that allows users to search for LinkedIn profiles of alumni from a specified educational institution using the PhantomBuster API. The application should accept inputs for the university name, current designation, and an optional pass-out year. The retrieved alumni data should be saved in a database. Requirements: 1. Backend Implementation: ● Implement a RESTful API using Spring Boot to handle requests from the front end. ● Create an endpoint that accepts the university name, designation, and optional pass-out year as input parameters and returns a list of alumni profiles. 2. Database Integration: ● Set up a database (PostgreSQL) to store the alumni information 3. PhantomBuster Integration: ● Utilize the PhantomBuster API to scr...

    €9 Average bid
    €9 Keskimäär. tarjous
    17 tarjoukset
    Shopify Store Cleanup & Management
    3 päivää left
    Varmennettu

    I run an established Shopify shop that needs a thorough spring-clean before we scale further. The areas that require immediate attention are the product listings, the overall site design, inventory control and our basic marketing routines. Key deliverables I’d like to see in the first phase: • Rewrite and optimise every product title and description for clarity, SEO and brand tone • Replace or retouch product images so they share a consistent size, background and colour profile • Reorganise collections and categories to create an intuitive navigation flow and tidy overall layout • Refresh the theme’s styling on the homepage, collection pages and checkout to bring the design up to date • Audit current stock, reconcile counts, set low-sto...

    €384 Average bid
    €384 Keskimäär. tarjous
    240 tarjoukset
    Static Site Speed & Design Refresh
    2 päivää left
    Varmennettu

    My BMX-lifestyle site, , is built the old-school way—pure HTML, CSS and a touch of JavaScript. I need a developer who can give it a spring-clean so every page loads fast, looks brighter and delivers a smoother ride for visitors. Here’s what I’d like done: • Performance tune-up – audit the current code, compress images, minify and combine files, and add any light-weight caching or lazy-loading tactics that make sense for a static build so pages feel instantly responsive. • Visual polish – keep the bold, bright and colourful vibe but tighten spacing, tweak typography and clean up any inconsistent styling so the overall design feels cohesive. • Subscription button – drop a clearly visible opt-in (Mailchimp, TinyLetter or similar;...

    €105 Average bid
    €105 Keskimäär. tarjous
    40 tarjoukset

    **Operating System:** CentOS 7.x (7.9 recommended) **Core Architecture:** Spring Cloud + Kafka + Hadoop + Python Automation **Core Package Name:** ``

    €18 Average bid
    €18 Keskimäär. tarjous
    17 tarjoukset

    We need a full-stack technical staff member with expertise in Java microservice development (Spring Cloud), message queues (Kafka/RabbitMQ), databases and caching (MySQL/Redis), Linux server deployment and maintenance, Nginx gateway configuration, and distributed system debugging to complete the deployment.

    €55 Average bid
    €55 Keskimäär. tarjous
    18 tarjoukset

    I’m putting together a versatile line of women’s everyday clothing that can transition smoothly from spring to winter. What I need is a fashion designer who can translate my rough ideas into a cohesive, season-spanning capsule: think comfortable silhouettes, smart layering pieces, and fabrics that read casual yet polished. The scope covers an entire year’s wardrobe, so each design must look equally at home under summer sun or layered for cooler months. I’ll share inspiration boards, color stories, and a few must-have garment types, but I’m counting on your creativity to fill in the gaps and shape a unified aesthetic. If you’re comfortable sketching by hand or in Illustrator, refining details in CLO3D, and preparing clear tech packs for productio...

    €22 Average bid
    €22 Keskimäär. tarjous
    42 tarjoukset

    ...tracker and I want to move quickly from concept to a secure, production-ready application. The backend will run on Spring Boot; the frontend needs to be available both as classic HTML/CSS/JavaScript pages and as a richer React interface, so we can serve different devices and gradually migrate stakeholders toward React. Security is essential. I need full user authentication with clear role separation—Admin and User—implemented with Spring Security (JWT or another proven token strategy). Beyond wiring the login flow, I also want advice on best-practice password storage, CSRF protection, and anything else you see fit to lock things down. Where I need your help: • Designing the Spring Boot architecture, setting up entities, repositories, and REST cont...

    €66 Average bid
    €66 Keskimäär. tarjous
    19 tarjoukset

    ...and positive stopping in both lifting and lowering directions, yet remain entirely manual in operation—no electronics or remote triggers involved. Key design parameters • Pressure range: 10 – 60 bar • Flow range: 20 – 100 L / min • Body material: aluminum (for weight and corrosion resistance) I am looking for a complete engineering package that covers hydraulic sizing, spool geometry, spring rates, flow-control metering notches, and seal selection so the finished valve behaves smoothly through the whole stroke. A 3-D CAD model and fully toleranced manufacturing drawings are essential, backed by calculations or simulation data that show the design meets the stated pressure and flow limits with an adequate safety factor for an indoor env...

    €1734 Average bid
    €1734 Keskimäär. tarjous
    15 tarjoukset

    We are looking for someone with experience in Media Relations for Men's streetwear to help generate coverage on blogs and website for our brands Spring Collection. We are a streetwear label inspired and involved with the UK underground music scene. Our new Spring range has been curated by Drum and Bass artist Marvellous Cain and is inspired by his roots in the Caribbean and his work within the UK music scene.

    €30 / hr Average bid
    Paikallinen
    €30 / hr Keskimäär. tarjous
    3 tarjoukset

    ...RAIDN is an enterprise-grade project portal developed for CISCO to manage, monitor, and streamline internal project workflows, data processing, and user interactions across multiple teams. The platform is built using a microservices architecture to ensure scalability, high availability, and performance. Roles & Responsibilities: Designed and developed scalable backend microservices using Java and Spring Boot, following RESTful and domain-driven design principles. Implemented microservices architecture with inter-service communication and centralized configuration. Developed event-driven workflows using Apache Kafka for asynchronous data processing and system decoupling. Integrated Redis caching to improve application performance and reduce database load. Built and optimized R...

    €8 / hr Average bid
    €8 / hr Keskimäär. tarjous
    16 tarjoukset
    Premium Pen Tool Prototype Development
    22 tuntia left
    Varmennettu

    ...firmware if used. • Photos or a short video that demonstrate each function before shipping. Acceptance criteria: • All four functions operate smoothly and independently. • Blade retracts under spring force every time. • Laser operates for at least 30 minutes cumulative on a full charge. • USB-C charge completes safely with an indicator LED. • No burrs or rough edges; the finish is presentation-ready. I’m open to other designs, if it must be modular to include all four must haves and make them refillable/reusable, so be it, my initial thought was to have a hinge or internal swivel with a spring loaded retractable sleeve for the marker and pen to be interchangeable on one end, and the batteries laser and charging port on the ot...

    €1110 Average bid
    Salassapitosopimus
    €1110 Keskimäär. tarjous
    18 tarjoukset

    ...interactive feature: The upper part of the watch (bezel + glass + dial) can spin manually like a spinner. The lower case and watch hands are fixed. Spinning is locked by default. When the user pulls the upper part upward (lift trigger), the lock is released and the upper part can spin. When the user pushes it back down, spinning is locked again. This is a purely mechanical system (no motor, no spring-driven spin, no electronics). The goal of this project is to design the mechanism, produce engineering drawings, and prepare manufacturing-ready documentation so I can prototype and mass-produce the watch in China. Core Functional Requirements (Must-Have) 1. Locking System Rotation is mechanically locked when the upper part is in the down position. Lock is released only whe...

    €116 Average bid
    €116 Keskimäär. tarjous
    15 tarjoukset

    I’m building x CLUB, an online hub where entrepreneurs can tap into practical resources, swap experiences, and grow their businesses together. The concept is clear; what I need now is a developer who can turn that vision into a reliable, easy-to-navigate web application built with Java Spring. Here’s where we are and what I’m counting on you for: • Back-end: Set up a solid Java Spring (Spring Boot) foundation, integrate security, and wire it to a SQL database that scales. • Front-end: Craft a responsive interface that feels intuitive on desktop and mobile alike. I have wireframes for core pages and welcome your UI/UX insight to refine them. • Core features: User registration/authentication, a searchable content area for our curat...

    €18 Average bid
    €18 Keskimäär. tarjous
    29 tarjoukset

    Project Overview The project is an e-commerce website called Souq American. The platform is already developed locally and we are now preparing it for production deployment. Current Technology Stack Frontend: Angular Backend: Java with Spring / Spring Boot (REST APIs) Database: MySQL Cloud Provider: Amazon AWS Containers: Docker CI/CD: Jenkins Version Control: Git / GitHub Current Status Frontend and backend applications already exist APIs are implemented Database schema is designed The main focus now is deployment, infrastructure setup, and automation Main Responsibilities for This Role Understand the existing frontend and backend architecture Assist with deploying the application to AWS (EC2, security groups, environment setup) Containerize frontend and back...

    €17 / hr Average bid
    €17 / hr Keskimäär. tarjous
    98 tarjoukset

    1 Product & Inventory Management 1.1 Product Master Create, edit, and manage products Product categorization Product status (active/inactive) Mapping with brand, tax, and attributes 1.2 Brand Master Manage product brands Brand-wise reporting support Assign brands to products 1.3 T...(Attendance) Daily attendance tracking In-time / out-time recording Attendance reports Payroll integration 5 General System Requirements Role-based login and authorization Audit logs for critical actions Responsive UI (desktop & tablet friendly) Secure REST APIs PostgreSQL relational database design 6 Deliverables for Freelance / Development Team Frontend (React JS) source code Backend (Spring Boot) source code Database schema & scripts API documentation Deployment gu...

    €1139 Average bid
    €1139 Keskimäär. tarjous
    56 tarjoukset

    ...degree in Computer Science, IT, or equivalent experience Strong understanding of programming fundamentals and software development lifecycle Experience with HTML, CSS, JavaScript, and at least one backend language Familiarity with databases such as MySQL, PostgreSQL, or MongoDB Knowledge of RESTful APIs and MVC architecture Experience with frameworks (e.g., React, Angular, Laravel, Django, or Spring) Strong problem-solving and analytical skills Ability to work independently and in a team environment Preferred Qualifications: Experience with cloud platforms (AWS, Azure, or Google Cloud) Familiarity with DevOps tools and CI/CD pipelines Understanding of Agile/Scrum methodologies Prior experience in full-stack development Work Environment & Benefits: Collaborative ...

    €13 / hr Average bid
    €13 / hr Keskimäär. tarjous
    141 tarjoukset

    PROJECT SUMMARY A secure collaboration platform for contractors, clients, and auditors to manage projects, deliverables, and compliance. CORE FEATURES: • Object storage with automatic bac...projects and versions of projects inside project directory • Client can upload requirements for upcoming versions • Client can manage backups generated for current projects • Client can give approval to delivered version • Email otp confirmation for acceptance/approval • RESTful API for client project backups uploads/downloads (Takes project name, project id input) Preferred tech stack : Java spring boot, Angular, postgresql, s3 compatible object storage This is very straightforward project if already worked on s3 compatible APIs. This is time sensitive project ...

    €72 Average bid
    €72 Keskimäär. tarjous
    22 tarjoukset

    ...Plastics analysis to evaluate: Stress during forming Spring-back effects Potential warpage or deformation Tooling and forming feasibility Optimize the design for laser cutting / stamping and mass production Maintain a clean, logical, and editable SolidWorks feature tree with meaningful feature names Collaborate with tooling and production teams to ensure smooth handover to manufacturing Deliverables (Must Be Production-Ready) Parametric SolidWorks Part File Optional assembly showing clamp positioned inside the MCB Flat-pattern drawing including: Bend lines & bend directions K-factor Material specification Manufacturing tolerances Simulation report (PDF or Word) covering: Simulation setup Material properties Stress, spring-back & warpage results ...

    €102 Average bid
    €102 Keskimäär. tarjous
    12 tarjoukset

    I’m looking for a writer who can craft a complete, short romance set firmly in the present day. The two protagonists have known each other for years as close friends; the story’s emotional hook should spring from that shared history—inside jokes, half-spoken memories, the comfort that makes new feelings all the more unsettling. Keep it concise yet immersive: strong opening scene, steady build of romantic tension, satisfying payoff. I’m open to whichever conflict you feel best suits the plot—miscommunication, an outside complication, or deeper internal doubts—as long as it feels organic and resolves believably by the end. Deliver the finished story in an editable document (Word or Google Doc), fully proof-read and entirely original. Please includ...

    €16 / hr Average bid
    €16 / hr Keskimäär. tarjous
    62 tarjoukset

    I’m building a Spring-based service router and need robust CSRF protection on all API endpoints. The idea is to leverage Public Key Infrastructure so that every incoming request carries a verifiable, signed token before it reaches any controller logic. Here’s the core of what I’m after: • A Spring Security configuration (Boot-compatible) that intercepts every request—GET, POST, anything—and checks a PKI-backed CSRF token. • A lightweight way for upstream services or clients to obtain and refresh that token; we can refine the flow together once you see my current architecture diagrams. • Server-side validation that ties the token to the session (or an equivalent stateless approach) so replay attacks are blocked. • Cl...

    €8 Average bid
    €8 Keskimäär. tarjous
    9 tarjoukset

    ...professional guidance on college admissions strategy, SEVIS/F-1 compliance, and readmission planning. I was recently academically dismissed from a U.S. public university after a semester that was significantly affected by documented medical issues, legal stressors, and personal circumstances. My appeal for reinstatement was denied. Since then, I have actively applied to transfer institutions; however, Spring 2026 admissions at several schools (including community colleges) are now closed, and one private university application was denied. I am currently in communication with my former university’s International Student Services (DSO) and have informed them that I have multiple applications in progress and intend to transfer my SEVIS record as soon as admission is secured....

    €221 Average bid
    €221 Keskimäär. tarjous
    8 tarjoukset

    ...Inventory Management – live stock levels, supplier records and order processing all in one place. • Production Planning – Material Requirements Planning, capacity planning and detailed scheduling that update inventory automatically. • Quality Control – batch-linked test results and release approvals accessible from the same dashboard. I am open to a modern stack of your choice—Python/Django, Java Spring, .NET, Odoo or similar—as long as the code is well-documented, version-controlled and deploys to our on-premise server. A central database, responsive UI and RESTful APIs for future scanner or mobile integrations are mandatory. Acceptance criteria: working prototype on our staging server, repo access with setup guide, and a brief video...

    €6837 Average bid
    €6837 Keskimäär. tarjous
    188 tarjoukset

    Hi, I need a product video for mattress category using my images. Video should be suitable for Amazon/Myntra product page. Length: 30–60 seconds Need text highlights like: - Premium comfort - Pocket spring / foam layers - Warranty - Sizes - Affordable price Style: Clean, modern, professional, eCommerce style. Please share sample work and price.

    €181 Average bid
    €181 Keskimäär. tarjous
    26 tarjoukset
    assignment
    Loppunut left

    I am a Computer Programming student at Sault College (Canada) and I need help completing 5 academic labs. The work must strictly follow college lab instructions and be ready for full marks. Labs to Complete CSD230 – Lab 1 (Java Spring Boot + JPA) Entity classes and repositories Proper package structure Application must run without errors Clean, student-level code GitHub commits required CSD230 – Lab 2 System/OS lab (users, permissions, auditing, logs, etc.) Complete all required steps Screenshots if required Clear README explaining the work Mobile Application Development – Lab 1 Mobile Application Development – Lab 2 Mobile Application Development – Lab 3 For mobile labs: App must run successfully Follow lab instructions exactly...

    €11 Average bid
    €11 Keskimäär. tarjous
    19 tarjoukset

    Just looking for a drawing, somewhat abstract, of the back view of a tall brunette with long, flowing hair, in a simple dress. With spring flowers in the background.

    €279 Average bid
    €279 Keskimäär. tarjous
    185 tarjoukset

    ...coming up and I’d like an experienced developer at my side—virtually—to boost my performance. The test will cover Java, Spring / Spring Boot, and Angular, with a mix of multiple-choice questions and short algorithmic challenges. Here’s what I need from you during the live session: • Real-time guidance as each question appears, including quick explanations or reminders of key concepts. • Fast-thinking ideas for structuring or optimizing any small algorithms we’re asked to write. • Clear, concise reasoning for MCQ selections so I can answer confidently. • Occasional sanity checks on SQL syntax or query logic if it comes up. You should be fluent in core Java patterns, Spring dependency injection and REST convent...

    €18 Average bid
    €18 Keskimäär. tarjous
    29 tarjoukset

    I have the jpg or png artwork for my art-group’s logo and want both the icon and the lettering to spring to life in a short, looping 2D animation that feels upbeat, creative, and fun. The piece will headline Instagram reels, story frames, and the occasional TikTok intro, so it only needs to run about 3–5 seconds while remaining cleanly loopable. Expect bright, energetic motion—think bouncy ease-ins, squash-and-stretch, and maybe a cheeky burst of colour. Nothing overly polished or corporate; the animation should mirror an artist’s playful vibe. Deliverables • 3–5 sec 2D animation featuring both the icon and text • Loop-ready MP4 (1080×1080 or 1080×1920) and GIF versions • Editable source file (After Effects, Animate, o...

    €104 Average bid
    €104 Keskimäär. tarjous
    107 tarjoukset

    ...move my current chat application to the next level and need a developer who can add new functionality while shaving precious seconds off load and delivery times. The headline feature on my wish-list is seamless, in-app video calling that plays nicely with the existing chat experience. Alongside that, I want the core chat flow tightened up—messages must land instantly, and the app itself should spring open far faster than it does today. You’ll be working in the live codebase, extending the present architecture rather than rebuilding it. Clean, well-commented commits and a short test plan that shows message delivery and app launch benchmarks before and after your work are essential for acceptance. When you reach out, please link to past projects where you introduced...

    €148 Average bid
    €148 Keskimäär. tarjous
    70 tarjoukset

    Saya ingin membangun dari nol sebuah aplikasi mobile khusus Android yang mampu memproses transaksi secara andal dan aman. Aplikasi ini akan menjadi produk utama, jadi saya membutuhkan: • Aplikasi Android native atau cross-platform (sela...masuk, dan halaman transaksi. • Backend yang menangani logika pemrosesan transaksi, penyimpanan data pengguna, serta endpoint API yang rapi untuk komunikasi dengan aplikasi. • Desain database dan skema keamanan dasar (enkripsi data sensitif, autentikasi token). • Dokumentasi singkat tentang arsitektur, cara build, dan cara deploy. Saya terbuka untuk stack yang Anda kuasai—misalnya Kotlin + Spring Boot, Flutter + Firebase, atau kombinasi lain asalkan mudah dipelihara. Beri tahu saya pendekatan terbaik Anda, tahapan ...

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

    I’m building a small online-banking proof-of-concept and need a concise Core Java module that focuses solely on transaction processing. The code must run on plain Java (no Spring or heavy frameworks) and use JDBC for all data access. Scope of work • Implement deposit and withdrawal operations against a single Checking Account type. • Persist balances and transaction ledgers in a relational database of your choice via clean, parameterized JDBC calls. • Include basic validation—insufficient funds, negative amounts, and duplicate transaction IDs should be gracefully handled with clear error messages. • Write a minimal CLI or simple Swing form to demonstrate each use-case end-to-end. Deliverables 1. Well-structured Java source (JDK 8+), SQL sc...

    €244 Average bid
    €244 Keskimäär. tarjous
    41 tarjoukset
    Full-Stack Java App
    Loppunut left

    ... Contract Details Type: Long-term contract Start: Immediate Responsibilities Design, develop, and maintain backend services using Java & Spring Boot Create and integrate RESTful APIs Develop frontend features using HTML, CSS, JavaScript and a modern framework Work closely with the project manager and team Debug issues, optimize performance, and implement new features Follow coding standards and meet delivery timelines Required Experience & Skills 3–4 years of professional experience as a Java Full Stack / Backend Developer Strong knowledge of Java (Core Java, OOP, Collections) Solid experience with Spring Boot, Spring MVC, Spring Data JPA Experience building and consuming REST APIs Frontend experience with HTML, CSS, JavaSc...

    €6 / hr Average bid
    €6 / hr Keskimäär. tarjous
    72 tarjoukset

    ...necessary changes to the concept design if required. *Project Overview* The product is a spring-biased toilet seat ring lifting mechanism that: Keeps the seat ring upright by default Allows manual pull-down without snap-back Is fully retrofit on standard ceramic WCs Does not interfere with the lid Uses a torsion spring + friction stack (no motors) *What I Will Provide* A complete CAD handoff ZIP (concept text, interfaces, constraints) Retrofit constraints (existing WC mounting holes, seat freedom) *Scope of Work* Create parametric CAD models for: Mechanism Housing Mounting bracket Hinge shaft Torsion spring (spec-level) Friction stack Ensure: Seat ring remains free-rotating Torsion spring + Friction stack provide lifting torque Deli...

    €75 Average bid
    €75 Keskimäär. tarjous
    23 tarjoukset

    I run a community soccer program for kids aged 5 – 14 and need hands-on help strictly on the coaching side. Your focus will be planning and running engaging training sessions that bring beginners up to speed while pushing our more advanced players at the same time. What the work looks like • Design age-appropriate drills an...instruction. Deliverable acceptance • First four-week training plan delivered before your initial session. • Visible skill-grouping strategy that lets every child feel challenged yet confident. • End-cycle report highlighting wins, areas to revisit, and next-step recommendations. If you have youth-level licenses or similar credentials, please mention them when you respond. I’m ready to get the spring cycle under way a...

    €18 / hr Average bid
    €18 / hr Keskimäär. tarjous
    4 tarjoukset

    ...architectural storytelling, and high-level communication. We need someone who can join calls, discuss complex past projects, and explain architectural decisions with extreme confidence and clarity. Key Requirements: - Native or Bilingual English: You must be able to articulate complex technical concepts fluently and persuasively. - Deep Engineering Background: Real-world experience with [Java/Spring, Node.js, Python, or AWS...etc]. You must know how to discuss trade-offs (e.g., SQL vs. NoSQL, Microservices vs. Serverless). - Architectural Fluency: Ability to speak about system design, scalability, and security as if you built the systems yourself. - Confidence: Ability to handle high-pressure technical discussions and "own the room" during a call. What you will do: ...

    €3996 Average bid
    €3996 Keskimäär. tarjous
    46 tarjoukset

    We are looking for a skilled AI Video Maker to create a seasonal video package for our outdoor LED storefront screen (P4, 800×280 px) for a men’s premium fashion brand. Brand: Fashion Zone – Men’s Premium Fashion Project Requirements: • 4 videos, each for a season: Summer, Fall, Winter, Spring • Duration: 45 to 60 seconds per video • Must be loop-friendly and work without sound • Showcase men’s fashion offers inspired by luxury international brands (Prada, Louis Vuitton, Brunello Cucinelli, Zegna, Loro Piana, etc.) • Fashion Zone logo and brand name must be clearly visible and readable from distance • Visual style: Premium, masculine, clean, high-contrast • Logo Creation: The freelancer must also create a new ...

    €106 Average bid
    €106 Keskimäär. tarjous
    30 tarjoukset

    ...candidates securely. C. Platform Admin • View, suspend, or delete user accounts. • Moderate content and handle reports. • Access secure audit logs. 4 Programming Languages and Frameworks • Operating System: Ubuntu (provided VM) • Database: PostgreSQL (recommended) or MySQL / MongoDB with justification • Web Server: Nginx • Backend: Python (FastAPI/Django), Node.js (Express/Nest), or Java (Spring Boot) • Frontend: React, Vue, or server-rendered pages 5 Milestones and Timeline (January–April) February Milestone 1 [No Credit] (February 13) • Finalize technology stack. • Configure HTTPS with self-signed or CA-issued certificates. • Deploy a skeleton application on the VM. February Milestone 2 [2.5%] (Februar...

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

    ...candidates securely. C. Platform Admin • View, suspend, or delete user accounts. • Moderate content and handle reports. • Access secure audit logs. 4 Programming Languages and Frameworks • Operating System: Ubuntu (provided VM) • Database: PostgreSQL (recommended) or MySQL / MongoDB with justification • Web Server: Nginx • Backend: Python (FastAPI/Django), Node.js (Express/Nest), or Java (Spring Boot) • Frontend: React, Vue, or server-rendered pages 5 Milestones and Timeline (January–April) February Milestone 1 [No Credit] (February 13) • Finalize technology stack. • Configure HTTPS with self-signed or CA-issued certificates. • Deploy a skeleton application on the VM. February Milestone 2 [2.5%] (Februar...

    €275 Average bid
    €275 Keskimäär. tarjous
    27 tarjoukset