Freelance Full-Stack Web App Developer

Job Overview

ai Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project ( ) 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.

Job Description

What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.

About the Role This is a freelance role for a Tendem project.

You may also work on standalone Python applications and data-processing scripts that sit alongside or behind these products. 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).

Key Responsibilities

• .ai Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project ( ) and build interactive browser-based applications within our hybrid AI + human environment.
• As a Full-Stack Web App Developer, you'll design, build, and refine browser-based applications with real logic, state, persistence, and user input - from habit trackers and budgeting tools to internal dashboards, mini-SaaS tools, and AI-powered apps.
• Key Responsibilities Build interactive web applications with frontend (React, Next.js, Vue, or similar) and a backend API (Python/FastAPI/Flask or Node/Express).
• 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).
• Requirements and benefits 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 Candidates should have a strong foundation in full-stack web development, modern frontend frameworks, backend architecture, and building interactive browser-based applications end-to-end.
• Strong problem-solving skills, attention to detail, and the ability to independently architect and ship complete features are essential 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) Project time expectations For this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements.

Required Skills and Qualifications

• .ai Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project ( ) and build interactive browser-based applications within our hybrid AI + human environment.
• 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.
• Build standalone Python tools and scripts where required by the task (data processing, API clients, lightweight backend utilities).
• Requirements and benefits 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 Candidates should have a strong foundation in full-stack web development, modern frontend frameworks, backend architecture, and building interactive browser-based applications end-to-end.
• Strong problem-solving skills, attention to detail, and the ability to independently architect and ship complete features are essential 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) Project time expectations For this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements.
• Compensation varies across projects depending on scope, complexity, and required expertise.
• Gain hands-on experience in a unique hybrid environment where human expertise and AI agents collaborate seamlessly - a distinctive skill set in a rapidly growing field.

Benefits and Perks

• Requirements and benefits 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 Candidates should have a strong foundation in full-stack web development, modern frontend frameworks, backend architecture, and building interactive browser-based applications end-to-end.
• Work fully remote on your own schedule with just a laptop and stable internet connection.
• Participate in performance-based bonus programs that reward high-quality work and consistent delivery.

Work Location and Schedule

This role is listed as Remote USA with location information shown as Remote USA. The employment type is Full Time.

About the Company

Mindrift is the organization connected with this listing. USA Jobs Today displays this opportunity for job discovery only, so applicants should verify company details, application instructions, and eligibility on the official employer website.