Spring data jobs

...experienced Java Spring Boot developer located outside the United States for ongoing backend development. Excellent spoken and written English is mandatory. You must be comfortable participating in video calls, discussing technical requirements, asking clear questions, and providing regular progress updates in English. Responsibilities: * Build and maintain scalable backend services * Design and develop REST APIs * Work with databases and third-party integrations * Troubleshoot bugs and improve performance * Write clean, maintainable, and well-tested code * Communicate progress, questions, and technical decisions clearly Required qualifications: * Strong Java and Spring Boot experience * REST API development * Spring Data JPA and Hibernate * PostgreSQL o...

Role & responsibilities -Required Technical Skills Experience: 4 + Years Big Client : Optum Long Term Product Development Backend - Java & Spring Boot Strong hands-on experience in Java and object-oriented programming. Extensive experience with Spring Boot and Spring Framework. Experience in designing and developing microservices-based applications. Strong knowledge of RESTful API development and integration. Hands-on experience with Apache Kafka, including producers, consumers, topics, partitions, and message processing. Experience with MongoDB, including data modelling, indexing, aggregation, and performance optimization. Understanding of microservices design patterns, exception handling, logging, and distributed transactions. Experience with ...

...authorization for administrators * Admin dashboard to manage rooms, reservations, customers, and website content * Contact form with inquiry management * Image and file upload functionality * RESTful API integration between frontend and backend * Mobile-friendly interface with optimized performance Technologies Used * **Frontend:** Angular, HTML5, CSS3, TypeScript * **Backend:** Java, Spring Boot, Spring Data JPA * **Database:** MySQL * **Tools:** Git, GitHub, Maven, IntelliJ IDEA Role * Designed and developed both the frontend and backend of the application. * Built secure REST APIs for booking and management operations. * Implemented authentication, CRUD operations, file uploads, and database integration. * Created a responsive user interface and optimized the...

...generous base-building space near each start position, clearly flagged metal/resource spots, and a handful of well-placed choke points that create strategic tension without feeling cramped on a map this size. Because Zero-K runs on the Spring engine, I’ll need the full .sd7 package ready to drop into the game: height-map, texture, metal map, feature placement, and the finished compile. Please include your editable source files (height PNG, texture PSD or equivalent, mapinfo, etc.) so I can iterate later if balance tweaks are required. If you have experience with Spring Map Editor, SpringBoard, or similar tools, it will speed things along, but any workflow that delivers a clean, fully play-tested map is fine. Balance for large team games (8–16 players) is a pr...

project bidding strategist needed. Looking for someone who will play the role of business development manager and fetch me IT projects for me. to start with - technology will be HTML with Php and MYSQL framework or back-end with spring boot. so business development manager will get me clients. payment terms to be discussed with right candidate

QA Automation & Manual Testing Engineer – E2E Testing for Manufacturing BMS ( / Java Spring Boot) Project Overview We are seeking a QA Specialist to perform end-to-end (E2E) manual and automated testing for a web-based Business Management System (BMS) built for a manufacturing firm. The platform handles job management, drawing approvals, purchase order versioning, automated PDF generation, and third-party integrations. Scope of Work & Technical Stack Application Stack: (Frontend), Java Spring Boot (Backend), PostgreSQL, NextAuth.js. Integrations to Test: Quotient API: Webhook payloads, idempotency, failure/outage handling. Microsoft Graph API (SharePoint): Dynamic folder creation, file uploads (drawings, cut files, photos), sync indicators. Transactional Email...

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I need a full-featured, web-based e-commerce application. At minimum, it must include: • User authentication • Shopping cart functionality • Payment gateway integration Beyond these essentials, I’m open to the stack you feel is best—whether that’s Java with Spring, a Python/Django setup, a C++ back end with React on the front, or another modern solution you can justify. What matters most is clean, well-documented, scalable code that I can maintain long-term. Here’s how we’ll work: 1. You’ll begin with a brief technical proposal outlining architecture, key libraries, and any third-party services. 2. Once approved, you’ll build the core features in iterative milestones, pushing to a private Git repository for revie...

My Java / Spring Boot backend needs immediate attention. The first priority is to hunt down and resolve several stubborn bugs that are breaking existing functionality, then improve overall performance so response times stay snappy even under load. Once stability is restored, I want to push forward with three concrete additions built on the same stack (Java 17, Spring Boot, Spring Data JPA, Hibernate, MySQL / MariaDB, REST and Git): • Clean CRUD endpoints for new domain entities • Seamless third-party API integrations (JSON / REST) • Robust user authentication and authorization I already have the project in a private Git repo and can grant access as soon as we agree on scope. Clear, well-structured code, meaningful commits and open communi...

I need a full-featured, web-based e-commerce application. At minimum, it must include: • User authentication • Shopping cart functionality • Payment gateway integration Beyond these essentials, I’m open to the stack you feel is best—whether that’s Java with Spring, a Python/Django setup, a C++ back end with React on the front, or another modern solution you can justify. What matters most is clean, well-documented, scalable code that I can maintain long-term. Here’s how we’ll work: 1. You’ll begin with a brief technical proposal outlining architecture, key libraries, and any third-party services. 2. Once approved, you’ll build the core features in iterative milestones, pushing to a private Git repository for revie...

...feature so readers can find posts quickly. I am not interested in WordPress or Joomla; instead, I’d like the site powered by a Java-based CMS or a custom Java solution that still gives me an intuitive admin area for writing, editing, and scheduling articles. Here’s what I need you to deliver: • A fully responsive blog interface styled with modern, maintainable CSS • Java server-side code (Spring Boot, Servlets, or your preferred Java framework) that handles post management and integrates the search functionality • Simple dashboard where I can create categories/tags, publish content, and review basic analytics • Clean codebase, documented well enough for future updates Before we start, I’ll share my logo, color palette, and hosting d...

...visual clutter—because it will live in five-star hotels, high-end residences, and boutique wellness clubs. Core experience • A workout-selection menu lets users browse curated Beginner, Intermediate, and Advanced reformer programs. • Once a session starts, visual and audio guidance walks the guest through every movement, rep, and spring change in real time. • Behind the scenes, the system records basic performance data (completed sessions, duration, spring settings, and streaks) so that management can review usage trends from an admin dashboard—no guest accounts or log-ins required. Admin scope Only a Management/Admin role is needed. From a password-protected area, staff can: • Add, edit, or retire workout videos and cue s...

...improving the efficiency of loan approvals. Instead of storing customer data in a centralized database, KYC information is securely stored and shared using blockchain technology, making it tamper-proof, transparent, and easily accessible to authorized banks. The system uses smart contracts to automate KYC verification and loan eligibility checks. Once a customer's identity is verified, the verified KYC data can be reused across multiple banks, reducing duplicate verification, saving time, and lowering operational costs. A credit assessment module analyzes the customer's financial information and credit history to support fair and faster credit allocation. Technologies Used: Frontend: HTML, CSS, JavaScript Backend: Java, Spring Boot Blockchain: Ethereum, ...

...Title: Data Integration Engine & Job Core Subsystem (Industrial ERP Platform) Executive Summary We are seeking an experienced engineering team / full-stack developer to build an enterprise-grade Data Integration Engine & Job Core Subsystem for an industrial ERP platform. The primary objective is to create a resilient data backbone that ingests, normalizes, reconciles, and synchronizes real-time job data across four primary touchpoints into a unified Single Job View: Quotient Quotes (API & HMAC-verified webhooks) Microsoft SharePoint (MS Graph API file streaming & folder hierarchy) Purchase Orders (POs) (Version control & discrepancy detection algorithms) Email Notifications (Automated event-driven client alerts via SMTP/SMTP2Go) Technical ...

...the user selects. Everything else runs smoothly—menus load, orders build, carts update—yet the moment a customer taps “Pay now,” the gateway returns an error that the chosen payment method is not accepted. No crash logs, just a rejected transaction every time. I need you to trace and eliminate this incorrect-functionality bug inside the existing codebase (native Android written in Kotlin with a Spring Boot backend). Once fixed, any supported payment method should go through to the provider and trigger the usual success callback so the order status flips to “paid” and the receipt email fires. Deliverables • Updated Android source with the fix clearly commented • Brief commit message or changelog describing what was changed and why ...

...detailed Xactimate estimate for a total-loss fire-damaged home in Missouri. The estimate must include: - Full structural and foundation evaluation (including excavation and new foundation). Consider potential challenges such as an underground spring and buried gas tanks on the property. - Line-by-line scope covering framing, heating/cooling, plumbing, electrical, insulation, drywall, flooring, windows/doors, siding, and debris removal. - Code upgrades and ordinance & law requirements specific to Missouri. - Pricing based on Missouri regional data. I will provide the following: inspection reports, room drawings and measurements, State Farm's low estimate with missing items highlighted, my homeowner policy declaration page, bank valuation of the home, house lis...

...application, and the core focus is clear: build a set of robust, well-documented RESTful APIs in Java. All persistence logic, request/response handling, and authentication layers will live in this codebase, so clean architecture and disciplined error handling matter a lot. Here’s what I expect to come out of this collaboration: • A modular Java codebase (Spring Boot or similar is fine) that exposes the required REST endpoints. • Well-structured data models mapped to the underlying database of your choice, with migrations/versioning in place. • Postman (or equivalent) collection and Swagger/OpenAPI documentation that let any front-end or third-party consumer hit the routes without guessing. • Unit and integration tests covering the critical...

...consistently until interviews are scheduled. * Coordinate interviews and negotiate rates when required. * Provide daily updates on profile submissions, follow-ups, interview requests, and client feedback. ## Technologies to Market * C# * .NET * ASP.NET Core * Web API * MVC * Microservices * React * Angular * JavaScript * TypeScript * SQL Server * Azure * AWS * Docker * Kubernetes * DevOps * Java * Spring Boot * Python * AI / Machine Learning / Generative AI ## Requirements * Proven experience in US IT Bench Sales. * Strong network of implementation partners, prime vendors, staffing vendors, and direct clients. * Experience marketing H-1B consultants for C2C opportunities. * Ability to tailor resumes based on each client requirement. * Excellent communication, negotiation, and...

...missions are clear: build out new business features and drive measurable performance gains across the existing services. Kafka underpins our integration layer, linking internal modules with a handful of external partners. You’ll design and refine topics, producers, and consumers, ensure fault tolerance, and keep latency low while throughput rises. Expect to work with modern Java (we’re on 17), Spring/Spring Boot, Git, and a standard CI pipeline; if you have alternative tooling preferences that achieve the same results, I’m open to them. Deliverables • Clean, well-tested Java service code for each new feature • Kafka integration layer (topics, schemas, producers, consumers) documented and deploy-ready • Performance benchmarks demon...

I’m developing a cardboard-housed, spring-mechanism party popper that bursts with both confetti and streamers, and I need a full design package that can go straight to production. The popper must accommodate multiple exterior colour variations—think festive, eye-catching artwork printed directly on the tube—while keeping structural integrity under the stored spring energy. Here’s what I need from you: • Mechanical design: 3D CAD of the popper body, end caps, safety sleeve, and the reusable spring system, sized for standard 30 mm inner diameter cardboard tubing. • Performance specs: spring rate calculations, preload force, and safe maximum load so the contents launch cleanly without tearing the housing. • Bill of Mate...

I’m building a Java-based web application that stores its data in MongoDB, offers secure user sign-up/login with role-based access, and presents key metrics through interactive charts on a dashboard. Core scope • Back-end: Java (ideally Spring Boot or Jakarta EE) REST layer that handles registration, JWT-based authentication and all CRUD endpoints. • Database: native MongoDB queries or Spring Data repositories; please include index recommendations for performance. • Front-end: any modern stack (Thymeleaf, React, Vue or similar is fine) so long as it cleanly consumes the API and renders responsive data visualisations with , D3, or an equivalent library. • DevOps basics: Maven/Gradle build, environment variables for secret...

...consistently until interviews are scheduled. * Coordinate interviews and negotiate rates when required. * Provide daily updates on profile submissions, follow-ups, interview requests, and client feedback. ## Technologies to Market * C# * .NET * ASP.NET Core * Web API * MVC * Microservices * React * Angular * JavaScript * TypeScript * SQL Server * Azure * AWS * Docker * Kubernetes * DevOps * Java * Spring Boot * Python * AI / Machine Learning / Generative AI ## Requirements * Proven experience in US IT Bench Sales. * Strong network of implementation partners, prime vendors, staffing vendors, and direct clients. * Experience marketing H-1B consultants for C2C opportunities. * Ability to tailor resumes based on each client requirement. * Excellent communication, negotiation, and...

Must you the real high res. photos I have uploaded. Not AI generated..! I want the layout to be very similar to the drafted version that I made. BUT I need the photos be the high res. photos that I have uploaded in the files. thank you. I have already sketched the overall look and feel I want, so your job is to translate that concept into a polished, print-ready one-page brochure that will help me sell the property. The page must highlight the key property features and place the price and my contact details prominently, all while respecting the layout cues in my draft. You will receive the copy, images, and my mock-up as soon as we start; I simply need your design eye and technical skill to turn it into a

I’m ready to kick off a complete School Management System and I need a seasoned Java full-stack developer to take it from concept to deployment. Project scope • Back-end: Java + Spring Boot with a MySQL data store. • Front-end: HTML, CSS, vanilla JavaScript and a fully responsive UI that works smoothly on mobile, tablet, and desktop. • Core modules: Student, Teacher and Admin areas with secure login/authentication, attendance tracking, fee handling and result publishing. What matters most to me is clean, well-documented code that I can maintain easily. Once the build is finished I’ll need the full source along with straightforward setup instructions so the system can be spun up in another environment without guesswork. Deliverables 1. W...

...(1–2 Days) We are looking for an experienced AWS & Java Backend expert to diagnose and resolve deployment issues in our production multi-tenant SaaS application. Current Situation Our application works perfectly on localhost, but after deployment on AWS we are facing issues. We need an expert who can quickly identify the root cause and provide a permanent solution. Required Skills - Java (Spring Boot) - AWS EC2 - Nginx - Linux (Ubuntu) - AWS Networking (VPC, Security Groups, Route 53, Load Balancer) - Multi-Tenant Architecture (Database-per-Tenant preferred) - MySQL/PostgreSQL - REST APIs - SSL, DNS, Reverse Proxy - Production deployment and troubleshooting What We Expect - Review our AWS infrastructure and deployment. - Analyse server logs and application logs. ...

...guide me through daily feature-building tasks in a Spring Boot, JSP/J2EE application backed by MySQL. You will not receive direct access to the codebase or servers; instead, I’ll share my screen and walk you through the current state of each module. Your role is to clarify design choices, suggest clean implementations, and help me finish new features efficiently. The focus is purely on feature development—no formal code reviews or bug-hunting sessions—so I’m looking for someone who loves crafting new functionality, structuring controllers, services, and repositories, and shaping performant SQL queries when the feature touches the database. If a question arises about best practices or edge-case handling, I’ll rely on your expertise in Spring B...

...quantitative decision-support platform. ________________________________________ 2. Project Objectives The system shall: • Automatically collect NSE market data after market close. • Build and maintain a historical database. • Calculate technical, volume, and institutional indicators. • Detect Smart Money footprints. • Detect early breakout candidates. • Generate conviction scores. • Rank stocks. • Produce PDF, Excel, and Dashboard reports. • Maintain historical signals. • Backtest the complete strategy. • Send alerts. ________________________________________ 3. Technology Stack Preferred Backend • Python 3.12+ Database • DuckDB or PostgreSQL Data Processing • Pandas • NumPy • Pola...

I'm seeking experienced actors for an indie film set in Scotland, Spring 2026. We need talent for: Main roles Supporting roles Extras Auditions will be conducted both in-person and via video. Ideal candidates should have a strong acting background, be versatile in adapting to various roles, and have experience with both audition formats. Please include any relevant acting experience and training in your bids.

I have a complete architectural floor plan for our new family home and now need it to spring to life in a set of realistic 3D visuals. The brief is to interpret every space—living room, kitchen, each bedroom, the small home gym, and the toilets—through a modern vintage lens. The mood I am after blends clean contemporary lines with warm retro accents. Furniture choices, the overall colour scheme, and layered lighting are the three pillars that matter most to me, so please give them particular attention. In the living room the design must prioritise relaxation; think cosy seating arrangements, subtle textures, and lighting that can dial down for an evening wind-down yet still feel bright and airy by day. I will supply the CAD files, measurements, and reference images on ...

Hiring: Full Stack Java Developer (Remote - Gujarat Only) We are looking for an experienced Full Stack Java Developer for a remote full-time opportunity. Requirements: - 4-5+ years of experience - Strong in Java, Spring Boot, and REST APIs - Experience with React.js or Angular - Good knowledge of SQL/NoSQL databases - Experience with Git, CI/CD, and Agile - Docker/Kubernetes/OpenShift is a plus Who can apply? - Individual Freelancers - Dedicated Developers - Development Agencies (with dedicated resources) Location: Gujarat, India (Remote) If you're interested, please send: - Your updated CV/Resume - Total years of experience - Current & Expected CTC per month Only candidates based in Gujarat will be considered.

...mobile applications from concept to deployment. What I can help you with: Web Development • Modern websites and web applications • React.js, , HTML, CSS and JavaScript • Laravel, and Spring Boot backends • REST API development and integration • Authentication and authorization systems • Admin dashboards and management platforms Mobile App Development • Cross-platform mobile applications for iOS and Android • React Native and Flutter development • API integration and backend connectivity • Real-time features and push notifications Backend & Database Development • Java / Spring Boot • Node.js / • PHP / Laravel • MySQL and Oracle databases • Secure REST APIs and application architecture AI &...

I already run a fully-functional React web application backed by a Java (Spring) API. What I need now is a companion website front-end plus iOS and Android apps written in React Native that talk to the same backend and expose exactly the same feature set. You will connect to my existing REST endpoints, keep all current business logic intact, and implement password-less authentication with JWT as well as OTP validation for both mobile numbers and email addresses. All APIs for these flows are in place; the React Native layer simply needs to consume them smoothly. The mobile look and feel should differ from the browser version—I have high-fidelity mockups ready to share, so you can focus on translating those screens into clean, maintainable React Native code. No new functionali...

Require java developer for backend, spring, lambda

I need a full stack partner who can take a green-field FinTech product from concept to production. The scope covers everything a modern payments platform requires, so I’m looking for someone (or a small, well-coordinated team) comfortable owning both architecture and execution across React.js on the front end and either Node.js/Express or Spring Boot on the back end, with MySQL, PostgreSQL, or MongoDB powering the data layer. What the finished product must include: • Secure user authentication, role management, and separate admin / user dashboards • Full KYC workflow, wallet creation and maintenance, pay-in / payout rails, and real-time transaction management • Integration with at least one mainstream payment gateway, wrapped in robust, well-docume...

I’m starting my first real project in Java Spring Boot and, as a beginner, I’d like an experienced developer to walk me through the process end-to-end. The immediate focus is on three areas: • Application setup – from creating the initial Maven or Gradle project to wiring basic dependencies and profiles • Code review – looking over small chunks of code as I complete each feature and explaining best practices along the way • Debugging – helping me trace and resolve runtime issues or failing tests when I get stuck We’ll work in short, screen-sharing sessions (1–2 hours at a time) so I can ask questions and practice in real time. After each call I’ll push my changes to GitHub; you’ll leave written feedback or ...

I am looking for an experienced mechanical design engineer to develop a compact handheld device with a precision clamping and hinge mech...looking for an experienced mechanical design engineer to develop a compact handheld device with a precision clamping and hinge mechanism. Required skills: Strong experience in SolidWorks or Fusion 360. Good knowledge of engineering plastics such as ABS, Polypropylene (PP), Nylon, PEEK, etc., and their properties for injection molding and repeated use. Experience designing hinges, pivot joints, spring mechanisms, and snap-fit features. Understanding of injection molding design guidelines, tolerances, and manufacturability. Ability to create a design suitable for both 3D printing prototypes and mass production. Experience with precision devices is ...

...Password * JWT Authentication * Profile Management Responsive Design * Desktop * Tablet * Mobile Admin Panel (Basic) * Manage users * View application statistics * Configure API settings * Manage announcements/news (optional) Technical Requirements Frontend: * React.js (preferred) or * TypeScript preferred * Responsive UI * Modern dashboard design Backend: * Node.js / Express, Spring Boot, or another suitable backend framework * REST APIs * JWT Authentication (if login is implemented) Database: * PostgreSQL * MySQL * MongoDB (any suitable option) API Requirements Please use free cryptocurrency APIs only. Examples include: * CoinGecko API (Free) * CoinCap API * Binance Public API * Kraken Public API * Coinbase Exchange API * CryptoCompare Free Tier (if within free l...

I'm seeking a creative video producer to create a fun and playful promotional video for our retail cloth kidswear business. The video is intended for seasonal promotion of our Spring/Summer collection. Key Requirements: - The video should be vibrant, engaging, and reflect the fun essence of our brand. - It should effectively showcase our Spring/Summer collection. - The aim is to boost brand awareness and attract customers for this season. Ideal Skills and Experience: - Proficiency in video production and editing - Experience in creating promotional content - Ability to capture fun and playful themes If you have a portfolio showcasing similar work, please share it with your bids.

...details pages Shopping cart and wishlist Secure checkout process Payment gateway integration Order management and order history Admin dashboard to manage products, inventory, orders, customers, and promotions Responsive design for desktop, tablet, and mobile SEO-friendly architecture Email notifications for orders and account activities Technical Requirements Preferred skills include: Java Spring Boot Spring Security Hibernate/JPA REST APIs React.js or Angular (preferred) HTML5, CSS3, JavaScript MySQL or PostgreSQL Git Experience deploying applications to cloud platforms is a plus. Deliverables Complete source code Responsive and production-ready application Database schema API documentation Deployment assistance Bug fixes during the agreed support period What We're...

...microservices architecture with independently deployable services such as User, Hotel, Booking, Payment, Notification, and Rating. It uses Apache Kafka for asynchronous communication and follows an event-driven saga pattern to handle workflows like booking and payment with reliable state transitions (PENDING → CONFIRMED/FAILED). The backend is developed using Spring Boot and Spring Cloud, including: * Eureka Server for service discovery * Spring Cloud Gateway for centralized routing * Feign Clients for inter-service communication In addition, I am integrating AI-driven features into the backend, such as intelligent hotel recommendations, personalized user experience, and smart insights based on user behavior and booking patterns. The system is designed to b...

* Java Spring Boot Developer * Spring Boot API Integration * Java REST API Developer * Java Microservices Developer * Java Backend Developer * Spring Security JWT Developer * Java API Integration Expert * Java Encryption AES RSA Developer * Java OAuth API Developer * Spring Boot PostgreSQL Developer

...revolve around an African American couple, and I need a seasoned comedy writer to bring them to life. The tone is decidedly comedic—smart, playful, and relatable—while still feeling authentic to Black culture and everyday experiences. The heart of each piece should beat with three recurring themes: family life, cultural traditions, and the ups-and-downs of relationship dynamics. I want the humor to spring naturally from these areas, whether that’s a lighthearted clash over grandma’s secret recipe, a hilarious misunderstanding rooted in cultural customs, or the couple navigating the quirks of married life with quick banter and plenty of heart. What you’ll deliver • A set of punchy, polished skits written in standard script format (dialogue, s...

I'm looking for an experienced developer to create a secure login system using Angular, Spring Boot, Spring Security, and MySQL. Key Requirements: - Login with email and WhatsApp OTP - Admin and user role management Ideal Skills and Experience: - Proficiency in Angular, Spring Boot, Spring Security, MySQL - Experience with OTP integration and role-based access control - Strong background in secure application development Please provide relevant work samples and a breakdown of your approach.

I already have a Windows-based .exe that simply wraps a Spring Boot jar; that jar contains virtually all of the middleware logic connecting my local system with an external service. What I need now is a developer who can transform that single-file setup into a fully-fledged, scalable server running in the cloud. Point to me note - i want that spring boot server working as it is same no chnages only chances main sevrer inside it and make sure jar works with that server same to same as they work with orignal ones You’ll receive: • the original Spring Boot jar (inside the exe) • my full assistance and domain knowledge whenever you need it Scope 1. Unpack or otherwise extract the jar so the project can be built, tested and version-controlled normally...

I need the backend of our new payment platform built first. The immediate goal is a Spring-based microservice (or small set of services) that processes bank-transfer payments end-to-end. Please design the services around clear REST endpoints, document them with Swagger / OpenAPI, and make sure responses are clean JSON (XML only if a partner specifically requires it). Key points you’ll work on: • Spring Boot, Spring Cloud, Spring Security where appropriate • Bank-transfer payment flow: create transaction, verify funds, confirm settlement, emit events • Kafka or another reliable MQ for event propagation • Container-ready code: craft Dockerfiles, helm charts or Kubernetes manifests so I can deploy straight to our cluster • ...

...that I want brought to life for desktop 3-D printing in plastic. The body needs to assemble with simple clip-on / clip-off connections and house a spring-loaded 1.33-inch ball that ejects smoothly and locks back in place. The clip system must balance strength and durability with easy, one-hand operation, and I still want the finished piece to look clean and attractive when it sits on a desk. Because the pen will ultimately be printed in plastic, please work within common FDM constraints—wall thickness, draft angles, and tolerances that keep post-processing to a minimum. What I need from you: • A complete CAD model of the pen and its internal spring chamber, dimensioned for a standard 1.33" ball. • Print-ready STL files plus a STEP (or similar) ma...

...and travel in all three length positions. - Cable and sheath should be serviceable. - Cable failure, breakage or detachment must leave the leash locked. - The leash must remain structurally safe even if the cable is removed. 4. Leash-to-collar connector - Cylindrical leash-side connector. - Gentle funnel-shaped entrance for one-handed insertion. - Central concealed magnet for alignment only. - Spring-loaded stainless-steel locking pin passing fully through the cylindrical connector. - Clear mechanical click when fully locked. - Direct mechanical red/green lock indicator. - Hidden keyed/flat guiding feature to align the locking hole with the pin. - The magnet must not carry pulling load. - No 360-degree swivel in the first prototype because it may twist or complicate the mechanic...

I’m ready to launch a full-scale food delivery platform built with React on the front end, Spring Boot for the API layer, and MySQL underneath. The site must feel fast and intuitive on phones, tablets, and desktops, so thoughtful responsive design is essential. Core workflow • Customers browse restaurant menus, search or filter dishes, add items to a cart, then place and pay for an order in a few clicks. • Restaurant Owners have their own portal to update menus, prices, photos, and track incoming orders in real time. • An internal admin dashboard will let me supervise every restaurant, user, and transaction from one place. Key feature set • Secure registration / login for Customers and Restaurant Owners • Stripe (or similar) card processing...

Experienced Java Spring Boot Developer & Mentor Needed for Hands-on Real-World Project Training I am looking for an experienced Java Spring Boot developer who can mentor me through hands-on learning by building real-world demo projects together. This is not just a teaching role. I want to learn by developing practical applications from scratch using industry best practices. I have basic knowledge already. What I am looking for: Strong experience with Java (Java 17/21 preferred) Strong experience with Spring Boot Experience with REST APIs, Spring Data JPA, Hibernate Experience with MySQL or PostgreSQL Knowledge of Maven/Gradle Experience with Git and GitHub Good understanding of software architecture and clean code principles Ability to explain c...

...guesswork. • Assist with deployment to my cloud account and deliver a short hand-off session. Acceptance criteria 1. End-to-end purchase flow completes on Razorpay, Cashfree and Paytm in sandbox and live modes. 2. JWT-based login and role permissions verified. 3. Policy data persists correctly and is retrievable via API. 4. Codebase passes my basic security scan (OWASP top-10 checks) and includes readme + setup script. Tech stack is flexible: I’m comfortable with Node.js, Python (Django/FastAPI) or Java Spring Boot, provided the solution is modular, well-documented and easy to maintain. Let me know which one you prefer and why....