IA Engineer

Our AI team works with clients in Spain and internationally to design and ship AI-powered systems. The work is hands-on and end-to-end: scoping problems with clients, designing architectures, and delivering production systems that hold up over time. We're looking for engineers with a generalist profile who are genuinely curious about rethinking how work gets done with AI. Not just using the tools, but figuring out what becomes possible when you build around them, both internally and for clients.

• 2+ years of relevant engineering experience

• AI tools are central to how you work, not optional: you use them daily (Claude Code, Codex, Cursor...) and you're always pushing to do more with them

• Solid software engineering fundamentals

• Hands-on experience with LLMs, embeddings, vector stores, modern AI frameworks and APIs

• Familiarity with at least one major cloud platform (AWS, Azure, or GCP)

• Clear communicator who can explain technical decisions without jargon

• Proactive and self-directed: you move things forward without needing to be pushed

• Fluent in English and Spanish. Comfortable understanding Catalan

Salary Competitive, based on experience

Vacation 25 days per year

Health insurance Private, fully covered by the company

Flexible benefits Meal vouchers (up to €220/mo) and transport (up to €136/mo) as pre-tax salary

Napptilus is a Barcelona-based technology company with over 15 years building software, R&D projects, and startups. Our AI team is the newest and fastest-growing part of the company: a small group working with enterprise clients across Spain and internationally on LLM-based systems that create real business impact. Your work here is visible and it matters. You'll have direct influence on what we build, how we build it, and where we go next.