Senior AI Search Engineer

About the role

commercetools is looking for a Senior Search Engineer on its Discovery Team in Valencia. You will build the retrieval layer behind product discovery for demanding commerce brands, working on semantic and hybrid retrieval that is moving toward general availability. The role is hybrid, with three days a week in the Valencia office.

Key responsibilities

• Design and implement search functionalities in a PaaS e-commerce Scala backend.
• Develop in a scalable, multi-tenant architecture.
• Analyze user needs and discuss technical approaches.
• Test software components for usability, functionality and performance, working closely with Product Management and DevOps.
• Take part in on-call rotations with a worldwide distributed team for production systems.

Required profile

• 5+ years of experience as a software engineer working in search.
• Experience building search solutions on top of engines such as Elasticsearch (preferred), Solr, OpenSearch or similar.
• Fluent English to work in international teams.
• A genuine curiosity for using AI tools to work smarter and more effectively.

Nice to have

• Experience with vector and hybrid search, learning to rank and re-ranking.
• REST API development and scalable event-driven architectures.
• Scala or other functional programming languages.
• Helm, Kubernetes and Rust.

What we offer

• Health benefits for you and your dependents, including mental health support.
• Learning and development opportunities, including an annual learning budget.
• Family Leave Plus with additional fully paid weeks of parental leave.
• Equity participation program.