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Freelance Full-Stack Web App Developer

23 hours, 41 minutes ago
Mexico, Argentina, Brazil, Chile, Peru, Colombia
Part-time
Junior
Full-stack Engineer
Software Development
Django Express.js FastAPI Flask Fly.io Git JavaScript MySQL NestJS Netlify Next.js Node.js PostgreSQL Python Railway React Render REST API SQLite Svelte TypeScript Vercel Vue.js
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Mindrift.ai: Be the “I” in AI

Mindrift.ai: Be the “I” in AI

Join 10,000+ experts earning $15-50/hr training AI models remotely. Flexible freelance work, weekly payments. No AI experience required. Apply in 5 minutes.

Internet Software & Services
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Description

  • Build interactive browser-based applications with a modern frontend framework and a backend API.
  • Design and implement data models, schemas, and persistence layers using SQL or NoSQL storage.
  • Implement authentication, sessions, and basic role-based access where needed.
  • Integrate third-party APIs and AI/LLM services into product features.
  • Handle state management, user input validation, error states, and loading states.
  • Build standalone Python tools, scripts, and lightweight backend utilities when required.
  • 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 the frontend, backend, and database.

Requirements

  • At least 3 years of relevant experience in full-stack web development or shipping interactive web applications.
  • Bachelor's or Master's degree in Computer Science, Engineering, Information Technology, or a related technical field is preferred.
  • Strong foundation in full-stack web development, modern frontend frameworks, backend architecture, and end-to-end application delivery.
  • Strong command of JavaScript or TypeScript and at least one modern frontend framework such as React, Next.js, Vue, or Svelte.
  • Solid backend experience in Python with FastAPI, Flask, or Django, and/or Node.js with Express or NestJS.
  • Hands-on experience with relational databases such as PostgreSQL, MySQL, or SQLite and basic schema design.
  • Experience implementing REST APIs, request validation, error handling, and authentication flows.
  • Familiarity with deployment platforms such as Vercel, Netlify, Render, Fly.io, or Railway.
  • Experience integrating LLM APIs or other AI services into product features is a strong plus.
  • Comfort with version control using Git and basic testing practices.
  • Portfolio of shipped web applications is required.
  • English proficiency at Upper-intermediate (B2) level or above is required.
  • Strong problem-solving skills, attention to detail, and the ability to architect and ship complete features independently.

Benefits

  • Work fully remote on your own schedule with just a laptop and stable internet connection.
  • Part-time freelance engagement with an estimated 10–20 hours per week during active phases.
  • Compensation of up to $30 per hour equivalent, depending on level and pace of contribution.
  • Performance-based bonus programs for high-quality work and consistent delivery.
  • Opportunity to work in a hybrid AI-and-human environment alongside Tendem Agents.
  • Gain hands-on experience building real products in a growing AI-driven workflow.

Interested in this position?

Apply directly on the company website

Apply Now

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