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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Founding Software Architect - **Company:** Postaladdress - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Code Review, Continuous Integration, Relational Databases, Software Debugging, PostgreSQL, Software Architecture, Next.js, Software Engineering, Systems Integration, TypeScript, ReactJS, Backend, Front End Software Development, Docker - **Published:** August 21, 2026 - **Apply:** https://www.jobleads.com/es/job/e8eb2bfacaf5ce9d3bed23590685f4d99 ## About the Role * 6-10 years of professional software engineering experience * Strong hands-on experience owning production software systems * Particular depth in backend architecture and relational database design * Strong TypeScript experience, ideally across both backend and frontend * Experience designing APIs, services, modules, integrations, and clear system boundaries * Strong knowledge of PostgreSQL or another relational database, including data modelling, performance, migrations, integrity, and access control * Experience with React, Next.js, or another modern frontend framework * Practical experience with Docker, cloud deployment, CI/CD, monitoring, and production debugging * Evidence of taking ambiguous product problems from initial requirements through production and ongoing operation * Experience making technical decisions and explaining the alternatives and trade-offs behind them * A production mindset covering security, testing, observability, reliability, performance, and maintainability * Experience working in an early-stage startup, scale-up, or similarly high-ownership environment * Clear and concise technical communication in English * Based in Barcelona or genuinely willing to relocate * The right to work in the EU without visa sponsorship, * want to build rather than manage from a distance; * are comfortable working without a detailed roadmap or established engineering organization; * investigate systems methodically instead of replacing components you do not immediately understand; * have strong opinions but can change them when the evidence changes; * can challenge founders constructively and explain the business impact of technical decisions; * communicate risks early and bring possible solutions; … ## Description Our client is looking for a deeply hands-on software architect who can become the technical reference point for the product and the future engineering team. You will work directly with the founders, take ownership of the existing architecture and production environment, and gradually assume responsibility currently held by an external software architect. This is not an enterprise architect or people-management position. You will spend most of your time designing, building, reviewing, debugging, and shipping production software. You will also own the decisions behind the implementation: how services and data models should be designed, which technologies are appropriate, where strong foundations are necessary, and where a simpler solution is better. As the company grows, you will help hire the first internal engineers, establish the engineering culture, and have the opportunity to develop into a broader technical leadership role. What You Will Do * Take technical ownership of the existing product and production environment * Design and evolve the backend architecture, APIs, and relational data model * Build product capabilities across backend, frontend, infrastructure, and AI systems * Review code in depth and maintain ownership of technical quality, including AI-generated code * Define practical standards for architecture, testing, security, observability, releases, and documentation * Improve development speed without creating unnecessary complexity or operational fragility * Work directly with founders and customers to turn ambiguous needs into product and technical decisions * Explain technical alternatives, trade-offs, risks, and failure modes clearly * Support the transition from an external development team to an internal engineering organization * Help assess, hire, mentor, and set the technical bar for future engineers ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [The Pragmatic Architect: Balancing Necessity vs. Sufficiency in React Systems](https://www.wearedevelopers.com/videos/2101-the-pragmatic-architect-balancing-necessity-vs-sufficiency-in-react-systems) - [From Zero to Hero: NextJS 13 and Tailwind CSS for Beginners](https://www.wearedevelopers.com/videos/766-from-zero-to-hero-nextjs-13-and-tailwind-css-for-beginners) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift)