Full Stack Developer Projects

I am looking for a full-stack developer with web3 experience.

We are planning to upgrade our game version For that NFT-marketplace is needed to build. We need to build the website by May. Now I am looking for freelancers t build this project perfectly.

Senior Full-Stack Developer

We are seeking a highly skilled Senior Full-Stack Developer with extensive expertise in both frontend and backend development. The ideal candidate should have a proven track record of enhancing and updating backend infrastructure. Applicants are required to submit a video via Loom demonstrating their relevant experience in this area. Additionally, please provide a concise summary detailing your approach to updating backend infrastructure. This project offers an opportunity to contribute significantly to our development team, working on innovative solutions and optimizing system performance.

Full Stack Development & Management Needed

Project Overview We are a US-based software team with 7+ years of production experience, scaling globally and hiring engineers across multiple regions. We are looking for a Technical Interview Manager who can design, conduct, and evaluate technical interviews to ensure we hire high-quality, real-world engineers, not just good test-takers. This is a long-term collaboration, not a one-off task. Key Responsibilities: - Lead technical interviews for backend, frontend, and full-stack roles - Evaluate real engineering ability: system design, code quality, debugging, architecture thinking - Design interview processes (live coding, take-home review, architecture discussion) - Provide clear hiring recommendations with structured feedback - Mentor junior interviewers and help standardize interview quality Required Experience: - 5+ years of hands-on full-stack software development - Strong proficiency in Python, JavaScript, C#, or Java - Production experience with FastAPI, Flask, Django, or .NET Core - 3+ years working in teams, mentoring or leading developers - Excellent technical communication in English

Full Stack Developer for creating statistical analysis SaaS

I am looking for a Senior Full Stack Developer to develop a platform for statistical analysis and game history at betting houses, replicating the features of the Tipminer website. Exact reference: https://www.tipminer.com/en What needs to be done: Real-Time Monitoring (Core): Create a system (Scraper/Sniffer) capable of reading game results on our platform via WebSocket or API Reverse Engineering. The data must arrive on the dashboard with zero latency (as soon as the round ends). Anti-blocking system (circumvent Cloudflare/Protections) to ensure stability. Frontend (Dashboard): Responsive layout (Mobile and Desktop) similar to the reference. Candlestick history grid with conditional coloring (Blue, Purple, Pink). Statistical graphs of accuracy, patterns, and paying times. Backend & Database: Store complete round history. Automatic calculation of strategies (e.g., candlestick patterns, sequences, gale). Mandatory Technical Requirements: Backend: Node.js, Python, or Go. Frontend: React, Vue.js, or Next.js. Connection: Advanced experience with WebSockets (WSS) and network sniffing. Database: PostgreSQL or MongoDB. Deliverables: Complete source code (Frontend + Backend). Installation and configuration on the server (VPS). Basic documentation on how to add new “houses” in the future (if applicable). Attention Candidates: Do not send generic proposals. This project requires knowledge of intercepting WebSocket traffic from iGaming sites. If you already have experience with casino APIs or similar projects (Tipminer, Tiphunter), mention this at the top of your proposal. Mandatory questions for the proposal: Do you have experience capturing data via WebSocket (WSS) from protected websites? What stack/technology will you use to ensure minimal delay? Do you have a portfolio of projects related to iGaming or real-time dashboards? What stack/technology will you use to ensure minimal delay? Do you have a portfolio of projects related to iGaming or real-time dashboards?

Finding talented senior full-stack developer

We are looking for talented Senior Full-Stack Developers based in Vietnam or Pakistan to join our remote engineering team and work on modern web applications used by real customers. What you’ll do - Design, build, and maintain features across frontend and backend - Work with modern JavaScript/TypeScript stacks (React, Node.js) - Build scalable APIs and integrate third-party services - Collaborate with product and engineering teams in a remote setup - Improve existing codebases with a focus on clarity, performance, and maintainability What we’re looking for - 10+ years of professional full-stack development experience - Strong knowledge of React and Node.js and AI - Experience working with REST APIs, databases, and cloud-based systems - Comfortable working independently in a remote environment - Good communication skills and a problem-solving mindset Nice to have - Experience with SaaS products - Familiarity with CI/CD pipelines - Experience working with distributed teams Compensation - Hourly rate: $10/hour - Fully remote, flexible working hours - Long-term collaboration opportunities for strong performers If you’re a senior developer who enjoys building reliable, well-structured systems and working remotely, we’d love to hear from you.

opportunity

Full-Stack Developer for Invite-Only Members Marketplace

We are launching a private, invite-only digital marketplace for high-value assets — including supercars, watches, art, and collectibles. The platform is targeted at high-net-worth individuals and built around privacy, trust, and security. We already have a complete UI/UX design in Figma. Now we're looking for an experienced full-stack developer (or a small team) to bring the MVP to life. Key Features to Build: Invite-Only Onboarding Invite code validation Membership application and approval flow Stripe-Powered Membership System Monthly/Yearly plans Active/inactive state handling Gated access based on payment status KYC Verification Flow ID + ownership proof upload Admin review dashboard Listings System Sellers can submit listings (with images, specs) Admin moderation before publishing Flagging and reporting Admin Dashboard Member management (approve, suspend, flag, delete) Listing moderation KYC review tools Metrics + alerts Member Dashboard View listings, favorites, status Notifications and settings Tech Stack (Preferred): Frontend: Next.js or Nuxt.js Backend: Supabase (preferred), Firebase, or Node/PostgreSQL Payments: Stripe Billing Auth: Role-based / JWT Deployment: Vercel / Netlify / AWS If you have a better stack suggestion that fits the MVP and can deliver quickly, feel free to propose. Deliverables: Fully functional web app (responsive) Admin and member dashboards Stripe integration Secure gated access Clean, scalable backend Deployment to production Post-launch support (minor bugs/adjustments) What We Provide: Figma file with complete UI/UX Full feature list + logic flows Available to answer questions quickly throughout the build To Apply: Please include: Short intro and why you're a good fit Relevant past projects (especially gated platforms or marketplaces) Your preferred stack and estimated timeline Any questions or ideas to improve the build open for price suggestions

Senior Full-Stack Engineer

Location: Remote Type: Full-time We’re building AI-powered products that work with real-time audio, video, and LLMs. We’re looking for a senior developer who can own features end-to-end — from frontend UX to backend APIs, AI integration, and production infrastructure. This is not a “just write tickets” role. You’ll help shape architecture, make technical decisions, and ship things that users actually touch. Hourly Rate: 8$

Flutter or React Native Full Stack Developer

Job Type: Remote · Hourly-Based About Us Hedgehog is an innovative startup that partners with leading companies in the US to build smart, scalable, and modern technology solutions. We develop social media and license social media engagement products, focusing on high-impact solutions with clean design, intuitive user experiences, and advanced engineering. Job Objective We are looking for a skilled and motivated developer to help us prototype and build an MVP for a consumer social connection app. This role involves creating both the mobile applications (iOS and Android) and the backend needed to support the app. This is an early-stage product, so we need someone who is comfortable working in a fast-moving startup environment and who can turn ideas into a working product quickly. Responsibilities Build a cross-platform mobile app for iOS and Android, preferably using Flutter Design and implement the backend/server (authentication, profiles, matching logic, messaging, etc.) Connect the mobile app to the backend via APIs Help define the technical architecture of the MVP Rapidly prototype and iterate on features Use AI tools (such as Claude Code AI) to speed up development and improve productivity Required Skills Experience building mobile apps for iOS and Android Strong knowledge of Flutter (or similar cross-platform framework) Experience building backend services (Node.js, Firebase, Supabase, or similar) API design and database experience Ability to work independently and take ownership of a product Comfortable working in a startup / MVP environment Nice to Have Experience building dating apps, social apps, or chat apps Experience with real-time features (messaging, notifications) Familiarity with AI-assisted coding tools (Claude, GitHub Copilot, etc.) What We Offer Fully remote work Flexible hours Paid hourly Competitive hourly rate Opportunity to help shape a real product from the ground up How to Apply Please send: A short introduction Your experience with Flutter, iOS/Android, and backend Links to any apps, GitHub, or portfolio Your hourly rate Availability

Full-Stack Developer Needed for Web & Mobile Solutions

I am seeking a skilled Full-Stack Developer capable of delivering robust, end-to-end technical solutions tailored to client needs. The ideal candidate has strong experience across web and mobile development and can independently handle the full software development lifecycle. Scope of Work & Responsibilities: Design, develop, and maintain high-quality, scalable web and mobile applications Build custom websites and E-Commerce solutions based on defined business requirements Integrate third-party APIs into existing systems Analyze project and market requirements to inform technical decisions Optimize on-page performance for usability, speed, and search visibility Design and implement efficient data structures and algorithms Develop and manage databases to ensure data integrity and performance Required Skills & Qualifications: Proven experience as a Full-Stack Developer or in a similar role Strong proficiency in web, mobile, and software development Hands-on experience with E-Commerce platforms and custom website development Solid experience with API integration Understanding of on-page optimization best practices Strong knowledge of data structures, algorithms, and database systems What I’m Looking For: A reliable developer who can focus on building and improving applications and websites, deliver clean and maintainable code, and collaborate effectively to achieve project goals.

Senior Full-Stack Developer

Full Job Description Overview: This position will work directly with Technology project teams, business users, and development teams to apply technical solutions in support of identified business challenges. You will be responsible for monitoring systems, interfacing with business owners, triaging issues, and developing solutions. This role requires working with limited supervision and providing after-hours system support as needed for a range of applications including Java, .NET, Visual Basic, and Oracle. Responsibilities: Design, develop, execute, deliver, and maintain Software Development and Maintenance projects. Participate in an Agile Software Development team with remote onshore and offshore development members. Attend project and client meetings, representing the team. Provide technical advice on solutions, performance issues, and project objectives. Contribute to Agile processes while maintaining efficient delivery. Deliver high-quality, secure, scalable, and maintainable production software. Adhere to coding standards. Maintain and create documentation (technical, functional, troubleshooting). Interact with Business Owners to understand business requirements and communicate technical decisions to non-technical users. Collaborate with other IT teams, including Enterprise Architecture, Security, DevOps, and Infrastructure to remove blockers and follow industry best practices. Foster effective, ongoing team interaction and communication. Qualifications: Bachelor’s Degree in Computer Science or equivalent experience required. Minimum of 5+ years’ experience designing, developing, and maintaining large-scale enterprise systems. Experience working on Agile software development teams with both onsite and remote members. Knowledge of the full software development lifecycle, including design, architecture, development, testing, deployment, and maintenance. Understanding of web services and APIs. Strong Oracle database knowledge. Forward-thinking with the ability to anticipate project, technology, and team solutions. Strong problem-solving skills and the ability to drive technological issues to resolution with minimal guidance. Self-motivated and able to thrive in a fast-paced, remote or onsite environment. Required experience with Spring Boot, REST APIs, and database connectivity. What We Offer: Pay Range: $40000 – $50000 / year, plus corporate bonus incentives. Benefits: Comprehensive medical, dental, and vision coverage, 401(k) with company match, HSA contributions, Paid Time Off, Personal/Sick Time, Paid Parental Leave, and more. Award-winning culture: We prioritize our company values: We Care; We Do the Right Thing; We Strive for Excellence; We Think BIG; We Take our Work Seriously, Not Ourselves.

Full-stack web developer (product-focused)

Need a new portal developed so need someone with experience. The portal is basically a merchandise dashboard so clients can see what they have in stock, reorder, ship etc: Multi-tenant portal (each client/org is isolated) Auth + roles (client admin/approver/viewer, internal admin) Inventory + orders data model (Postgres, audit logs) Integrations (shipping labels + tracking, email, payments if needed) Admin dashboard + client dashboard UI

Full‑Stack Developer Needed + Interview Call Participation

We are seeking a proficient Full-Stack Developer to assist with an upcoming website development project. The ideal candidate will possess extensive experience in modern web technologies such as React, Next.js, Vue, or Angular, alongside strong backend proficiency in Node.js or PHP. Effective communication in English is essential, as participation in a brief interview call to discuss project specifications is required. We offer competitive remuneration above market standards, potential for long-term collaboration, and a supportive environment with clear requirements. If you excel in both technical skills and communication, we invite your application.

opportunity

Full-Stack Mobile Developer for App (iOS & Android)

I am looking for a talented mobile app developer (or small agency) to build Pinvera, a community-driven social mapping platform. The app allows users to report and "pin" real-world social encounters to a map, categorized by specific archetypes (Karens, Chads, Legends, and Safety Warnings). The app features a robust moderation system and a gamified experience where users earn tokens, increase their trust score, and compete on a global leaderboard. Key Features & Functionality 1. User Authentication & Profiles Sign-up/Sign-in via Email, Google, and Apple ID. User profiles displaying "Trust Score," "Level," and "Total Tokens." Streak tracking (e.g., 0-day streak) to encourage daily engagement. 2. Interactive Map Interface (Core Feature) A real-time map view (Google Maps or Mapbox integration). Visual "pins" based on the category of the encounter. Filter system to toggle visibility of different pin types (Karen, Chad, etc.). "Current Location" centering and search functionality. 3. Encounter Reporting ("Add Pin") User-friendly form to submit encounters. Categories: Karen: Annoying or entitled behavior. Chad: Positive or funny encounters. Legend: Wholesome or helpful encounters. Warning: Scams, safety alerts, or warnings. Submission Details: Title, Description, Category selection, and Geo-location (automatic or manual). 4. Moderation & Pending System All submitted pins must go to a Pending Queue. Admin/Moderator capability to review, approve, or reject pins before they appear on the public map. A "Pending" tab for users to track the status of their submissions. 5. Gamification & Leaderboard Token System: Users earn tokens for approved pins. Trust Score: A leveling system (Level 1, 2, etc.) based on the accuracy and frequency of reports. Leaderboard: A dedicated "Board" tab showing top users ranked by Tokens, Trust, or Activity. 6. Categorized Feeds Dedicated tabs for "Karen Sightings," "Chad Encounters," "Nice Legends," and "Warnings." Feeds should include "Most Reported" trends for the week (e.g., "Most reported: Phone scams this week"). Technical Requirements Platform: Cross-platform development (Flutter or React Native) to ensure 100% feature parity on iOS and Android. Backend: Firebase (Firestore, Auth, Functions) or a Node.js/PostgreSQL setup. Geolocation: Deep integration with GPS and mapping APIs. UI/UX: I have existing high-fidelity wireframes/screenshots. The developer must be able to replicate the clean, modern aesthetic shown in the designs (rounded containers, soft shadows, and specific iconography). Timeline & Milestones Phase 1: Backend setup & User Authentication. Phase 2: Map integration & Pin submission logic. Phase 3: Admin Moderation panel & Pending flow. Phase 4: Gamification (Tokens/Leaderboards). Phase 5: QA Testing & Deployment to App Store/Google Play. How to Apply Please provide: Examples of previous map-based or social networking apps you have built. Your preferred tech stack for this project. An estimated timeline for an MVP (Minimum Viable Product).

opportunity

Game Developer for a 3D Roulette Game

We are looking for a Game Developer to create a photorealistic 3D roulette game for web and mobile platforms. The task is to assemble the project and implement the entire client-side game logic. It is important to achieve realistic graphics and smooth performance while choosing a technology stack that does not overload the game in terms of performance. What needs to be done: • Develop the client-side of the 3D roulette game • Implement the game logic • Select an appropriate technology stack for web and mobile • Connect the game to the backend via API (endpoints will be provided at the start of the project) What we expect: • Experience in developing 3D games for web and mobile devices • Understanding of graphics optimization • Skills in working with realistic 3D graphics • Willingness to review the technical specification and present relevant projects Conditions: • Deadline: 14 days • Start after reviewing the technical specification • Portfolio with game or 3D projects is required With successful implementation of the first project, long-term cooperation is planned — launching a series of similar 3D games, including blackjack and poker.

Full Stack Laravel + React Developer (AI Tools Experience)

Project Summary: We have an existing sustainability tracking platform (materials, emissions, transport data etc). We need a developer to continue development, extend features, and maintain the platform. Required Skills: PHP Laravel (mandatory) React (mandatory) MySQL (mandatory) AWS deployment experience Git workflow Experience using AI-assisted development tools (Replit AI + OpenAI Codex/GPT) Nice to Have: Experience with carbon emissions or supply-chain data Dashboard development REST API experience Expectation: Work on backend APIs, React UI, MySQL data models, and AWS deployment. Must be able to work independently and use AI tools for faster development. Please share: :heavy_check_mark: Portfolio or GitHub :heavy_check_mark: Relevant Laravel/React work :heavy_check_mark: Availability + hourly rate

Need a developer for my website development

I need a developer for my website development. I lost my previous developer so the project is stopped. Now I wanna restart it and need developers now. If you have good experience in React, please contact me. Look forward to your proposal.

opportunity

Modern Quizzy development

I’m leading Quizzy(StudyByte), an online learning platform that’s already up and running, and I’m now looking to level it up with modern, AI-driven features. I need a solid full-stack developer who knows what they’re doing—someone comfortable with the MERN stack, writing clean code, and taking ownership of real features like AI study tools, personalized learning, dashboards, and engagement systems. I’m easy to work with, but I’m strict about quality, timelines, and communication, so I’m looking for a developer who treats this like a serious product, not a quick gig. If you’re reliable, proactive, and enjoy building meaningful software, we’ll work well together.

Alpha Consultant

We are seeking a skilled developer to create a comprehensive full-stack application for Alpha Consultant, aimed at facilitating our client's online business expansion. The platform will encompass essential consultancy features, including information on visa processes, university insights, appointment scheduling, and more. The ideal candidate will possess a strong background in both front-end and back-end development, ensuring a seamless user experience. This project presents an exciting opportunity to contribute to a vital resource for individuals seeking guidance in their educational and immigration journeys.

Mobile App Developer

ABOUT THE ROLE We are building a mobile app that merges private asset portfolio management with exclusive, automated community features. We have a functioning prototype in Lovable, but need to make it a mobile app and will need ongoing development here. We need a Moblie developer with experience using AI-tools (Cursor, etc) to take our current technical foundation and turn it into a world-class consumer experience. This starts as a contract role with a clear path to becoming a core member of the engineering team as we scale. THE PROJECT You’ll be working directly with our founding engineer to stabilize our backend, implement complex data integrations, and polish the mobile UX for an upcoming launch. - Portfolio Management: A utility where users track real-time asset values, 5-year forecasts, and ownership cost curves. - Automated Communities: A subscription-based social layer that auto-places users into niche groups based on their portfolio data and location. TECH STACK - Framework: Flutter or React Native (open for suggestions) - Backend/Data: Supabase - Tools: AI-assisted development (Cursor, etc.) for rapid iteration WHAT WE’RE LOOKING FOR - Required: - Experience shipping high-quality apps. - Ability to work with data-heavy interfaces (charts, trends, forecasts). - Experience with AI-assisted development (Cursor, etc.) to move fast and maintain high output. - High ownership: you can handle ambiguity and ship reliable code independently. - Nice to Have: - Previous experience building social features (feeds, real-time updates). WHAT WE OFFER - Starting Out: - Hourly rate based on experience. - Flexible, fully remote hours. - Direct collaboration with the founding team. - Growth Path: - The opportunity to join as a core early engineer post-raise. - Potential for equity as the team scales. - Ownership over a platform with a roadmap to hundreds of thousands of users. HOW TO APPLY Send us: - Portfolio and links to relevant Mobile App work. - Your experience with AI coding tools. - Hourly rate expectation - When you can start - Weekly availability for the next 1–2 months. - Bonus: A link to a GitHub profile or live mobile projects you’ve contributed to.

Full Stack dev Python/ ReactJS for AI Documentation dashboard

Description Experience Level: Expert Estimated project duration: Ongoing Full Stack Developer - AI in Healthcare Project - 0-15 hours per week to strengthen our innovative start-up team. In this position, you will play a key role in the further development of our AI-based software product and work closely with our senior developer. Your core tasks: - Further development of our Flask-based backend architecture - Design and optimisation of the ReactJS frontend interface - Implementation of DevOps practices to improve deployment - Contributing to the redesign of our database structure - Testing and developing the proof of concept for our AI software product - Scaling product usage and performance optimisation Your profile: - In-depth experience in Python development, especially with Flask - Comprehensive knowledge of ReactJS and modern frontend development (OPTIONAL ) - Familiarity with AWS services, especially EC2 - Experience with DevOps tools and practices - Knowledge of VM/US engine technologies is an advantage - Structured and efficient way of working - Proactive communication and teamwork skills Desirable: - German language skills (working language is English) - Experience in developing or improving AI products