> Markdown version of [/jobs/ext/3069673-senior-platform-engineer](https://www.wearedevelopers.com/jobs/ext/3069673-senior-platform-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Platform Engineer - **Company:** Salt - **Location:** Granada, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Mobile Application Development, Cloud Engineering, Data Architecture, Cursor, Python (Programming Language), PostgreSQL, Node.Js, Next.js, Systems Integration, TypeScript, ReactJS, Large Language Models, Generative AI, Backend, Front End Software Development - **Published:** September 25, 2026 - **Apply:** https://www.buscojobs.com.es/senior-platform-engineer-en-granada-ID-373167008 ## About the Role Senior / Lead Full Stack Engineer who is comfortable taking ownership and building products in a fast-moving environment. Ideally, you'll bring: Strong experience shipping real-world products within a startup or scale-up environment , ideally Series A/B stage Strong TypeScript and React / Next.js experience Experience building backend applications using Node.js and/or Python Good knowledge of PostgreSQL in production environments Hands-on experience building and managing infrastructure within AWS Experience across both frontend and backend development Exposure to mobile application development Strong understanding of APIs, integrations, data architecture and modern cloud environments Experience shipping genuine LLM / Generative AI-powered features into production Hands-on use of modern AI development and agentic coding tools such as Claude Code, Cursor or similar A strong product mindset - able to understand a business or user problem and translate it into a simple, effective technical solution Comfortable operating with autonomy and making technical decisions without relying on a large engineering team The Ideal Background This could be a particularly strong fit if you've worked as a: Previous HealthTech experience is useful but not essential . We're more interested in engineers who have built high-quality products at startup pace and are excited about applying AI to complex real-world problems. ## Description We're working with an ambitious, fast-growingHealthTech company.Combining cutting-edge healthcare, AI and a premium consumer experience, the business is developing a technology platform designed to transform how individuals and clinicians understand, manage and optimise long-term health.This is a highly hands-on position with significant ownership. You'll work closely with the leadership, clinical and operational teams to design and build technology used by both clients and healthcare professionals.They're looking for aSenior / Lead Full Stack Engineerwho is comfortable taking ownership and building products in a fast-moving environment.Ideally, you'll bring:Strong experience shipping real-world products within astartup or scale-up environment, ideally Series A/B stageStrongTypeScript and React / Next.jsexperienceExperience building backend applications usingNode.js and/or PythonGood knowledge ofPostgreSQLin production environmentsHands-on experience building and managing infrastructure withinAWSExperience across bothfrontend and backend developmentExposure tomobile application developmentStrong understanding of APIs, integrations, data architecture and modern cloud environmentsExperience shipping genuineLLM / Generative AI-powered features into productionHands-on use of modern AI development and agentic coding tools such asClaude Code, Cursor or similarA strong product mindset - able to understand a business or user problem and translate it into a simple, effective technical solutionComfortable operating with autonomy and making technical decisions without relying on a large engineering teamThe Ideal BackgroundThis could be a particularly strong fit if you've worked as a:Previous HealthTech experience is useful butnot essential. We're more interested in engineers who have built high-quality products at startup pace and are excited about applying AI to complex real-world problems.Why Join?This is a rare opportunity to become thefirst in-house engineerwithin an ambitious international HealthTech business.#J-*****-Ljbffr