We're looking for a Lead Software Engineer
- Al Product development (Full Stack) to join our Cortellis team in Barcelona, where you'll build high-impact product features powered by Generative AI and modern software engineering practices. In this role, you'll take ownership of end-to-end delivery, driving the design and implementation of scalable backend and frontend solutions while integrating AI capabilities—such as GenAI, agent-based workflows, and retrieval-augmented systems—into a mission-critical platform. You'll collaborate closely with UX, and distributed engineering teams to define architecture, deliver customer-facing features, and ensure AI integrations are reliable, measurable, and production-ready. Bachelor's degree in Computer Science, Engineering, or a related field At least 7 years of backend development experience (Java 11/17, Spring Boot, microservices), including design and delivery of scalable, distributed systems and RESTful APIs At least 6 years of experience with frontend technologies (Angular, Node.js) and full-stack product development At least 3 years of experience integrating AI capabilities into production systems (OpenAI / Azure OpenAI APIs), including prompt engineering (few-shot, structured outputs, guardrails) and development of AI assistants and agent-based workflows (tool calling, memory patterns) Hands‐on experience designing and optimizing RAG pipelines (chunking, embeddings, retrieval orchestration) and evaluating AI systems (Ragas, prompt testing, regression evaluation) At least 6 years of experience delivering end-to-end product features, including CI/CD, monitoring, and cloud platforms (AWS or equivalent) It would be great if you also have. .. Experience with CI/CD pipelines and automation tools (GitHub Actions, Jenkins, Azure DevOps)



Familiarity with vector databases and retrieval systems (Azure AI Search, Pinecone, Weaviate, FAISS) Experience with experimentation frameworks (A/B testing, feature flags such as Split. Lead the design and delivery of scalable backend features, from architecture to production Build and maintain microservices and APIs using Java and Node.js, ensuring performance, reliability, and security Ensure AI solutions are robust and production‐ready by improving output quality, managing limitations, and optimizing performance Collaborate closely with product, engineering, and domain experts to deliver high‐impact solutions You'll join a team of engineers working across backends, frontends, and quality assurance. We follow an Agile delivery model and collaborate closely with business and product stakeholders to develop the Cortellis platform. The team works closely with, and receives support from, several enabling functions such as DevOps, UX, AI Enablement, and Solution Analysis, ensuring a well‐rounded and scalable product development approach. This is a full‐time, permanent position, primarily working core business hours in CET, with flexibility to collaborate with teams as needed. This is a hybrid position working in the office up to 3 days a week. Private Health and Life & Disability insurances. ~ Tax‐free benefits (Ticket Restaurant scheme, kindergarten, and transport cards) ~ Agile work environment with a team of talented colleagues ~ Digital workplace with possibility to work in a central office location in Barcelona with general and dynamic employees. At Clarivate, we are committed to providing equal employment opportunities for all qualified persons with respect to hiring, compensation, promotion, training, and other terms, conditions, and privileges of employment.

📌 Lead Software Engineer (Barcelona)
🏢 DR / Decision Resources
📍 Barcelona