Mindrift logo
Mindrift

Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid. Project time expectations: Tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements; This is an estimate, not a guaranteed workload, and applies only while the project is active. Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.

Freelance Full-Stack Web App Developer

Location

Worldwide

Posted

6 days ago

Salary

$60 / hour

Seniority

Mid Level

Job Description

Freelance Full-Stack Web App Developer

Mindrift

Role Description Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project (https://tendem.ai/) and build interactive browser-based applications within our hybrid AI + human environment. In this role, as an AI Pilot – that's how we refer to this position at Mindrift – you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide full-stack engineering expertise, architectural judgment, and quality control to ensure web apps are functional, robust, and ready for real users. This part-time remote opportunity is ideal for professionals with hands-on experience in modern frontend frameworks, backend APIs, databases, and shipping interactive web products end-to-end. Key Responsibilities - Build interactive web applications with frontend (React, Next.js, Vue, or similar) and a backend API (Python/FastAPI/Flask or Node/Express). - Design and implement data models, schemas, and persistence layers using SQL (PostgreSQL, SQLite) or NoSQL stores. - Implement authentication, sessions, and basic role-based access where needed. - Integrate third-party APIs and AI/LLM services (OpenAI, Anthropic, or similar) into product features. - Handle state management, user input validation, error states, and loading states cleanly. - Build standalone Python tools and scripts where required by the task (data processing, API clients, lightweight backend utilities). - Evaluate AI-generated full-stack code and refactor it for correctness, security, performance, and maintainability. - Write clear, testable code and debug end-to-end issues across frontend, backend, and database. Qualifications - At least 3 years of relevant experience in full-stack web development or shipping interactive web applications (required). - Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus. - Strong foundation in full-stack web development, modern frontend frameworks, backend architecture, and building interactive browser-based applications end-to-end. - Strong command of JavaScript/TypeScript and at least one modern frontend framework (React, Next.js, Vue, Svelte, or similar). - Solid backend experience in Python (FastAPI, Flask, Django) and/or Node.js (Express, NestJS). - Hands-on experience with relational databases (PostgreSQL, MySQL, SQLite) and basic schema design. - Experience implementing REST APIs, request validation, error handling, and authentication flows. - Familiarity with deployment platforms (Vercel, Netlify, Render, Fly.io, Railway, or similar). - Experience integrating LLM APIs or other AI services into product features is a strong plus. - Comfortable with version control (Git) and basic testing practices. - Strong attention to detail and commitment to building working, robust products — not demos. - Self-directed work ethic with the ability to architect, build, and ship features independently. - Portfolio of shipped web applications (required). - English proficiency: Upper-intermediate (B2) or above (required). Requirements - Project tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. Compensation - Contributors can earn up to $60 per hour equivalent, depending on their level and pace of contribution. - Compensation varies across projects depending on scope, complexity, and required expertise. Benefits - Work fully remote on your own schedule with just a laptop and stable internet connection. - Gain hands-on experience in a unique hybrid environment where human expertise and AI agents collaborate seamlessly. - Participate in performance-based bonus programs that reward high-quality work and consistent delivery.

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