Product Development AI Engineer - Barcelona

We are looking for a Product Development AI Engineer to join our AI Engineering team in Barcelona. This is an exciting opportunity to work on cutting-edge AI-powered software, building reliable, scalable solutions that leverage Python, cloud technologies (Azure/AWS), microservices, and LLM-based applications.

You will be joining a small skilled engineering team with expertise in backend development, AI/ML and cloud services. If you have strong skills in Python backend engineering, cloud ecosystems, and AI-driven solution development, we would love to speak with you.

About You – experience, education, skills, and accomplishments

· Bachelor’s degree in computer science, Software Engineering, or a related field, or equivalent experience.

· At least 2-3 years of professional software engineering experience, including developing backend systems in Python (APIs, microservices, ETL pipelines).

· At least 2 years of experience working in cross-functional, agile teams, collaborating with Product, Cloud Ops, Architecture, Engineering, and SMEs.

· At least 2 years of experience working with LLMs or agentic AI applications, with demonstrable understanding of their reliability challenges.

What you’ll need to succeed...

· Experience with AI/ML workflows, such as RAG, vector databases, or evaluation techniques.

· Experience working in cloud environments (Azure or AWS), including deploying or integrating backend services.

It would be great if you also have...

· Experience contributing to or defining software architecture for complex systems.

· Experience mentoring or providing technical guidance to other engineers.

What will you be doing in this role?

· Translating ideas, requirements, and problem statements from product teams into high-quality, reliable code and working proof-of-concepts.

· Collaborating closely with Product Engineering, Product Management, SMEs, Cloud Operations and Solution Architecture to understand needs and deliver technical solutions.

· Building and iterating LLM-based or agentic AI applications, ensuring reliability, quality, and awareness of AI limitations.

· Leading the technical approach on assigned work by taking initiative and ownership from design through implementation.

· Testing, validating, evaluating and continuously improving solutions through unit tests, automation, and iterative development.

· Progressing projects from initial concept to prototype and contributing to the technical plans needed to move them toward production.

· Supporting central platform and other initiatives for AI developmnet.

· Working in an agile, fast-paced environment, adapting priorities based on business needs and contributing to a culture of continuous improvement.

About the Team

Our team is part of the LS&H Innovation group, focused on developing AI-driven capabilities across the Commercial and Medtech organisation. The immediate team consists of the 4 engineers who work closely with the different stakeholders to deliver AI features in their products. We operate within a broader AI Innovation ecosystem that includes multiple software engineering teams and a dedicated Product Management function. Collaboration across these groups is central to how we explore opportunities, build innovative solutions, and accelerate AI adoption across the organization.

Hours of Work

This is a full-time position, primarily working core business hours in CET time zone, with flexibility to adjust to various global time zones as needed.

This is a hybrid position working in the office 2-3 days a week.