Freelance Full-Stack Web App Developer (Remote)

Denmark
Posted 1 week ago
Software Development

About the role

Job summary

This is a freelance, fully remote position for a Full-Stack Web App Developer to work on the Tendem project, focusing on building interactive browser-based applications. The role requires expertise in both frontend and backend development, with a strong emphasis on creating functional and user-friendly web applications.

Qualifications

  • Minimum of 3 years of experience in full-stack web development or shipping interactive web applications.
  • Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related fields is a plus.

Responsibilities

  • Develop interactive web applications using frontend frameworks (React, Next.js, Vue) and backend APIs (Python/FastAPI/Flask or Node/Express).
  • Design and implement data models and persistence layers using SQL or NoSQL databases.
  • Manage authentication, sessions, and role-based access as needed.
  • Integrate third-party APIs and AI services into product features.
  • Ensure clean handling of state management, user input validation, and error states.
  • Create standalone Python tools and scripts for various tasks.
  • Review, debug, and optimize full-stack applications for performance and maintainability.
  • Write clear, testable code and troubleshoot issues across the stack.

Skills

  • Proficient in JavaScript/TypeScript and at least one modern frontend framework.
  • Strong backend experience in Python or Node.js.
  • Familiar with relational databases and schema design.
  • Experience with REST APIs, request validation, and authentication flows.
  • Knowledge of deployment platforms and version control (Git).
  • Familiarity with integrating AI services is a plus.

Education

  • Relevant degree in a technical field is advantageous but not mandatory.

Tools

  • Experience with tools and platforms such as Vercel, Netlify, and Git for version control.
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