Freelance Full-Stack Web App Developer

Job description

Accountabilities: In this role, you will be responsible for designing, building, and improving full-stack web applications while ensuring reliability, scalability, and clean architecture across all components. Develop interactive web applications using modern frontend frameworks (React, Next.js, Vue, or similar) Build and maintain backend APIs using Python (FastAPI, Flask) and/or Node.js (Express, NestJS) Design and implement data models and persistence layers using SQL or NoSQL databases Develop and integrate authentication systems, sessions, and role-based access when required Connect third-party APIs and AI/LLM services into application features Manage application state, validation, error handling, and loading states across the stack Create standalone Python scripts or tools for data processing or backend utilities Review, debug, and refactor AI-generated code to ensure correctness, security, and performance Write clean, testable code and resolve end-to-end issues across frontend, backend, and database layers Contribute to the full lifecycle of feature development from design to deployment Requirements: This position requires strong full-stack development experience and the ability to independently design, build, and ship complete web applications. Minimum 3 years of experience in full-stack web development or building production web applications Strong proficiency in JavaScript/TypeScript and at least one modern frontend framework Solid backend experience with Python (FastAPI, Flask, Django) and/or Node.js (Express, NestJS) Experience with relational databases (PostgreSQL, MySQL, SQLite) and schema design Strong understanding of REST APIs, authentication flows, and error handling Experience with Git version control and basic testing practices Familiarity with deployment platforms (Vercel, Netlify, Render, Railway, or similar) Ability to work independently and architect end-to-end solutions Strong attention to detail and commitment to production-quality code Upper-intermediate English proficiency (B2 or above) Portfolio of shipped web applications (required) Nice to have: Experience integrating LLM or AI-based APIs into applications Experience building AI-assisted or data-driven products Background in advanced architecture or scalable system design Experience with performance optimization and security best practices Benefits: Remote freelance work with flexible schedule (task-based 10–20 hours/week estimate) Competitive compensation up to $35/hour equivalent, depending on experience and contribution level Opportunity to work in a hybrid AI + human development environment Hands-on experience building AI-integrated, production-grade web applications Exposure to modern full-stack workflows and advanced engineering challenges Performance-based opportunities for additional rewards and bonuses Work independently with full ownership of features and technical decisions Global, remote collaboration environment How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! Why Apply Through Jobgether? Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. #LI-CL1 This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Freelance Full-Stack Web App Developer in India. This role offers the opportunity to build and refine interactive, production-ready web applications in a hybrid environment where human engineering expertise is combined with AI-assisted development workflows. You will work across the full stack, developing both frontend interfaces and backend systems for real-world tools such as dashboards, SaaS-like applications, and data-driven web products. The position requires strong architectural thinking, as you will be responsible for ensuring code quality, performance, and maintainability across complete application flows. You will collaborate in a flexible, remote freelance setup, contributing to fast-paced, iterative development cycles. The environment is highly technical and innovation-driven, requiring independence, precision, and problem-solving skills. This is an opportunity to work at the intersection of software engineering and AI-enhanced development.