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# Full-Stack Web App Developer

- **Company:** Mindrift
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Business Logic, User Authentication, Software as a Service, Databases, Data Validation, Relational Databases, Software Debugging, Django Web Framework, Python (Programming Language), PostgreSQL, MySQL, Node.Js, NoSQL, Software Architecture, Svelte, Next.js, SQLite, SQL Databases, TypeScript, Web Applications, Web Application Frameworks, Data Processing, ReactJS, Flask (Web Framework), Large Language Models, Backend, Git, Fastapi, Vue.js, AI Platforms, Information Technology, Front End Software Development, NestJS, Restful APIs, Software Version Control, Web Api
- **Published:** August 4, 2026
- **Apply:** https://es.trabajo.org/oferta-9000-4aa10ee2e39118cbdeafce6c8c8e5c7b

## About the Role

full-stack applications to improve correctness, security, performance, and maintainability - Write clear, testable code and debug end-to-end issues across frontend, backend, and database Educational 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 Academic and/or Professional Experience 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 build production-ready web applications. Strong problem-solving skills, attention to detail, and the ability to independently architect and ship complete features
are essential. Technical Skills (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 Additional Requirements - 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

## Description

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) - Review, debug, optimize, and refactor


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