Mindrift

Freelance Full-Stack Web App Developer

Remote, United States remote Entry Salary not listed
remote Design & Creative Curated
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About the role

Headquarters: India
URL: http://mindrift.ai

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. 

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. 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. 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).
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.

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. We are looking for specialists who can confidently work across frontend, backend, databases, and APIs, design robust application logic, and refine AI-assisted output into production-ready products. 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. This is an estimate, not a guaranteed workload, and applies only while the project is active. 

Compensation 
On this project, contributors can earn up to $35 per hour equivalent, depending on their level and pace of contribution.
Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.

Why this freelance opportunity might be a great fit for you? 
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 — a distinctive skill set in a rapidly growing field.
Participate in performance-based bonus programs that reward high-quality work and consistent delivery.

To apply: https://weworkremotely.com/remote-jobs/mindrift-freelance-full-stack-web-app-developer

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Role
Design & Creative API integration Finance Javascript MySQL Python remote

Likely questions

  1. Tell us about work you have done that is close to the Freelance Full-Stack Web App Developer role.
  2. How would you approach your first 30 days at Mindrift?
  3. Which of API integration, Finance and Javascript have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with API integration, Finance and Javascript.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Freelance Full-Stack Web App Developer role because I can bring practical experience in API integration, Finance and Javascript, learn the team quickly, and contribute to the outcomes Mindrift needs from this hire.

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