Senior Backend Search Engineer (Elasticsearch/Scala)

Real innovation starts with a strong foundation, and at commercetools, that comes from the perfect balance of our product and our people.

Behind every leap forward is a collective of builders, explorers, doers, makers, and problem-solvers.The kind of people who not only pioneered a more flexible approach to commerce architecture but also shaped the culture of experimentation that approach unlocked. Together, they are the engine of commerce innovation today.

At commercetools, we power the next era of commerce for our customers. Whether it’s AI-driven solutions that help enterprises make smarter business decisions, bridging digital and physical shopping experiences, or enabling entirely new ways for industries to connect with their customers, we help the world’s most ambitious companies experiment, scale, and grow without limits.

Here, the best idea wins, not the loudest voice. You will have the tools, trust, and space to not only build the future of commerce but to build your own.

Scale multi-tenant search for the world's most ambitious brands using Elasticsearch and Scala.

As our Senior Search Engineer, you’ll support the Search Team by building a modern, integrated search experience for our customers, providing them with a search API for product discovery and the foundations of search capabilities across domains.

You will:

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

This role is hybrid, with three days a week spent in our Berlin or Valencia office. 

You're a creative problem-solver who is wired to find solutions. You confidently dive into complex challenges and have a talent for making them simple for others. Your curiosity drives you to constantly grow and contribute to an environment of trust and teamwork.

Great ideas come from many paths, and your unique perspective matters more than checking every box. What matters most is the mindset you bring to the work.

You bring:

• 5+ years of experience as a Software Engineer working in search.
• Experience with building search solutions on top of engines, such as Elasticsearch (preferred), Solr, OpenSearch, or similar.
• Aspiration to constantly improve yourself and learn new technologies, concepts, etc.
• Fluent English communication skills to work in international teams.
• AI Aptitude: A genuine curiosity for using AI tools to work smarter and more effectively, paired with a drive to learn and put them into practice in your role.

Nice to Have: 

• Experience using modern search stacks and strategies to optimize search relevance (Vector and Hybrid Search, Learning to rank, Re-ranker)
• Experience developing REST APIs and knowledge of scalable event-driven architectures (incl., queues, notification topics, sharding, replication, load balancing, and failover).
• Experience working with Scala or other functional programming languages.
• Experience with infrastructure work and other technologies like Helm, Kubernetes, and Rust.

Your unique perspective is essential to our success. We are committed to building a team that reflects the world around us because we know it’s the only way to build the future. We celebrate our differences and have created a hiring process that’s fair, inclusive, and designed to let your talent shine.

We proudly welcome applicants of every race, color, religion, gender identity, sexual orientation, age, and any other part of your identity that makes you who you are. As an equal opportunity employer, we believe that our strength lies in our diversity, and we invite you to be a part of our global community.