Freelance Full-Stack Developer (Project-Based | Long-Term Collaboration) | Remote

₹75000-150000 INR

Closed

Posted 7 days ago

₹75000-150000 INR

Paid on delivery

Varun Product Labs is looking for a Freelance AI Full-Stack Developer to build modern AI-powered SaaS, Web, and Mobile Applications for international clients. This is a project-based opportunity with the potential for long-term collaboration. We're looking for developers who work as full-time freelancers. ## Responsibilities * Build scalable AI-powered SaaS, Web, and Mobile applications. * Develop modern applications using React.js, [login to view URL], Node.js, and TypeScript. * Integrate AI models such as OpenAI, Claude, Gemini, Grok, and open-source LLMs. * Build AI chatbots, AI assistants, RAG applications, AI workflows, and AI agents. * Integrate authentication, payment gateways, third-party APIs, and cloud services. * Collaborate with UI/UX designers to build production-ready products. * Write clean, scalable, and maintainable code. ## Requirements * 4+ years of Full-Stack development experience. * Must be a full-time freelance developer. * Strong portfolio, GitHub, or live project links. * Strong experience with React.js, [login to view URL], Node.js, [login to view URL] or NestJS, TypeScript, REST APIs, PostgreSQL, MySQL, MongoDB, or Supabase. * Hands-on experience integrating OpenAI, Claude, Gemini, or similar AI models. * Experience building AI-powered applications, chatbots, AI agents, RAG, or AI workflows. * Mobile development experience with Flutter or native iOS (Swift) and Android (Kotlin) is a plus. * Must have published at least one production app on both the Apple App Store and Google Play Store. ## Additional Skills (Good to Have) * Experience with LangChain, LangGraph, CrewAI, AutoGen, MCP, or Vercel AI SDK. * Experience with Vector Databases such as Pinecone, Qdrant, Weaviate, or Supabase Vector. * Experience with Docker, AWS, Google Cloud, or Azure. * Experience with Firebase or Supabase. * Experience integrating Stripe, Razorpay, or other payment gateways. * Experience with AI automation tools such as n8n, [login to view URL], or Zapier. * AI-assisted development experience is preferred. * Please mention which AI tools you use to speed up development (e.g., Claude, ChatGPT, Cursor, GitHub Copilot, Windsurf, Bolt, v0, Lovable, or similar). ## Compensation * Fixed-price, project-based collaboration. * Typical project budgets: USD $500–$3,000+, depending on project scope and complexity. ## Why Join Varun Product Labs? * Fully remote. * Flexible work schedule. * Opportunity to work on international client projects. * Consistent project opportunities. * Long-term collaboration. ## Company Website [login to view URL] ## How to Apply * Portfolio, GitHub, or live project links (Required). * Resume or Freelancer profile. * Years of experience. * Current location. Applications without a portfolio or GitHub profile will not be considered.

Full Stack Development

Mobile App Development

Artificial Intelligence

Project ID: 40624562

About the project

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Remote project

Active 1 day ago

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135 freelancers are bidding on average ₹111,103 INR for this job

@SBITServices

Hi, I'm a full-time freelance Full-Stack Developer with 10+ years of experience building web and mobile applications. Experience: 10+ years Location: India I use *ChatGPT, Claude, GitHub Copilot, and Cursor* to speed up development while maintaining clean, production-ready code. Please find my portfolio, GitHub, and live projects attached. I'd be happy to discuss your requirements and how I can contribute to your AI product development projects. Thank you. Regards, Sai

₹75,000 INR in 30 days

4.8

(22 reviews)

6.1

@TechizeBuilder

Dear Client, I read "Freelance Full-Stack Developer (Project-Based | Long-Term Collaboration) | Remote" carefully and understand what you're looking to achieve with this Mern Stack Development project. My hands-on experience with Mobile App Development, Node.js, AngularJS, React.js, Artificial Intelligence, Full Stack Development, Flutter aligns directly with what you need. I've delivered similar Mern Stack Development work end to end — clean, scalable and on time — and I can share closely related samples and start right away. A few quick questions to get us started: 1. Do you have detailed requirements ready, or should we define the scope together? 2. What's your target timeline for the first working version? 3. Are there existing designs, code or systems I should build on? Thanks & Regards, Deepak

₹97,500 INR in 21 days

5.0

(13 reviews)

5.6

@ashinnd84

Hello, we are a team of senior AI Full Stack Web and Mobile App Developers. We will develop your AI powered system. Please, send me a message to discuss the work and finish in no time. Thanks Ashish Kumar.

₹112,500 INR in 7 days

4.8

(11 reviews)

4.8

@ModernTechno442

Hello, I came across your project and would love the opportunity to work with you. We are a professional IT company specializing in Website Development, Mobile App Development, Custom Software, UI/UX Design, SEO, Digital Marketing, and AI-powered solutions. Our team focuses on delivering high-quality, scalable, and user-friendly solutions that help businesses grow. Why choose us? * High-quality work with clean and efficient code * On-time delivery with regular progress updates * Responsive communication throughout the project * Post-delivery support and maintenance * 100% commitment to client satisfaction Before starting, we'll carefully understand your requirements and recommend the best solution to ensure the final product meets your expectations. We believe in building long-term relationships through quality work, transparency, and reliability. Let's discuss your project in detail. We'd be happy to share relevant work samples and answer any questions you may have. Looking forward to working with you! Best Regards, Modern Technology

₹112,500 INR in 7 days

5.0

(17 reviews)

4.5

@rehanahmad9766

Hello, I'm a full-time freelance developer experienced in building scalable web, mobile, and AI-powered applications using modern technologies like React, Node.js, Flutter, and OpenAI integrations. I focus on clean, production-ready code and enjoy collaborating on long-term projects with international clients. I use AI tools like ChatGPT, Claude, and GitHub Copilot to speed up development while maintaining high code quality and faster delivery. By the way, for the initial screening, would you prefer my Freelancer profile, portfolio links, or GitHub repository first?

₹80,000 INR in 7 days

5.0

(6 reviews)

1.2

@SagarS333

Hello there, AI products need clean architecture and reliable integrations to move from prototype to production, because poor scalability and unstable workflows can slow client delivery. I build secure, scalable AI-powered SaaS, web, and mobile applications with modern frameworks, LLM integrations, REST APIs, authentication, and cloud-ready architecture that is easy to maintain and extend. I would be happy to share my portfolio and discuss how my experience aligns with your AI product roadmap. Please send me a message so we can discuss your current projects and long-term collaboration. Looking forward to hearing from you. Warm Regards, Sagar

₹145,500 INR in 22 days