AI Engineer (Python) - Barcelona Based

We are looking for a AI Engineer (Python) in Barcelona who's eager to embark on an exciting new opportunity!

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What is this challenge about:

• Own end-to-end delivery of AI solutions for Finance business problems, from problem definition to deployment and measurable outcomes.
• Translate ambiguous, evolving requirements into working software, directly with the business stakeholders who own the problem.
• Rapidly build vertical AI applications on top of an existing AI platform, using RAG pipelines and agentic workflows.
• Prototype quickly, delivering a functional UI to business users early and iterating on real feedback.
• Deploy solutions in a regulated environment, respecting governance, RBAC, data residency, audit, and compliance constraints.
• Instrument every solution with usage metrics, adoption tracking, and business outcome telemetry.

What we are looking for:

• 5+ years of professional experience with Python.
• Experience with FastAPI and Streamlit.
• RAG pipeline construction (chunking, embeddings, vector search, retrieval evaluation, grounding, citation).
• Experience with LangChain.
• Prompt engineering with evaluation discipline.
• SQL and data modeling.
• REST API design and integration.
• Fluency with a cloud data platform (at least one cloud provider).
• Git, CI/CD, and modern development workflows.

What we offer

• A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
• A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
• An empowering and respectful work culture enriched with social and learning events.
• A People Experience Partner specially assigned to you — your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.

"At KWAN, they make sure that I feel comfortable with the client I'm working for and that what I'm doing aligns with my career aspirations."