Gerard Matas

Frontend Developer In Barcelona (hybrid work mode) 2–5 years XP Full-time freelance contract Fluent in Spanish (English recommended) 35K to 55K € ABOUT THE COMPANY This is a Barcelona-based AI startup that lets users build, deploy, and operate production-ready software applications using natural language. Unlike traditional no-code platforms, it relies on teams of AI agents—virtual designers, developers, and product managers—that collaborate autonomously to design, build, and even operate software. The mission is to democratize software creation, enabling both technical and non-technical users to go from idea → product → operation faster and with minimal human effort. The platform supports scalable, complex projects with databases, workflows, authentication, APIs, and custom agent extensions, serving founders, startups, small businesses, and enterprises. It operates on a subscription-based model, with enterprise plans and usage-based fees for compute and agent runtime, helping teams launch products quickly and independently. WHAT’S THE PROJECT? You’ll join a team working on the platform’s main product suite, including the core dashboard. Your mission: build beautiful, functional, and high-performing user interfaces that make interacting with AI-powered tools seamless and enjoyable. ✨ You’ll collaborate with engineering, growth, and sales teams to design experiences that solve real problems and push the boundaries of what’s possible with AI-driven software creation. AND WHAT’S MY ROLE IN THIS? Build and maintain front-end components using React and TypeScript.  Design intuitive, functional, and delightful user interfaces for the platform and its products. Collaborate closely with backend, design, and product teams to deliver complete end-to-end features. Gather feedback from internal teams and users to identify improvements and shape new features. Ensure the platform remains fast, elegant, and scalable as new capabilities are added. OK, AND WHAT DO YOU NEED? Experience building web applications with React and TypeScript. A strong sense of UI/UX design — not just functionality, but beauty and clarity. Familiarity with APIs, cloud tools, and modern software design patterns. Enthusiasm for solving complex problems and building innovative tools that people love to use.  

Backend Developer In Barcelona (hybrid work mode) 3–6 years XP Full-time freelance contract Fluent in Spanish (English recommended) 45K to 55K € ABOUT THE COMPANY This is a Barcelona-based AI startup that lets users build, deploy, and operate production-ready software applications using natural language. Unlike traditional no-code platforms, it relies on teams of AI agents—virtual designers, developers, and product managers—that collaborate autonomously to design, build, and even operate software. The mission is to democratize software creation, enabling both technical and non-technical users to go from idea → product → operation faster and with minimal human effort. The platform supports scalable, complex projects with databases, workflows, authentication, APIs, and custom agent extensions, serving founders, startups, small businesses, and enterprises. It operates on a subscription-based model, with enterprise plans and usage-based fees for compute and agent runtime, helping teams launch products quickly and independently. WHAT’S THE PROJECT? You’ll help scale and optimize the backend systems that power the platform.  This means building APIs, microservices, and CI/CD pipelines, improving database performance, and ensuring everything runs smoothly at scale. AND WHAT’S MY ROLE IN THIS? Build high-performance backend systems with Go and Python. Design and implement APIs (REST/GraphQL). Architect microservices for multi-tenant SaaS, billing, and user management. Optimize databases and caching (PostgreSQL, Redis). Collaborate with frontend and DevOps teams for seamless product experiences. OK, AND WHAT DO YOU NEED? 3+ years experience in backend development with production systems. Expert in Go or Rust and Python. Experience with cloud platforms (GCP) and Docker/Kubernetes. Strong understanding of databases, distributed systems, and SaaS patterns.