> Markdown version of [/jobs/ext/2821226-search-backend-engineer](https://www.wearedevelopers.com/jobs/ext/2821226-search-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Search Backend Engineer - **Company:** commercetools GmbH - **Location:** Valencia, Spain - **Contract:** Permanent contract - **Skills:** Shard (Database Architecture), DevOps, Programming Tools, Elasticsearch, Failover, Java Virtual Machine (JVM), MongoDB, Platform as a Service (PAAS), Load Balancing, Backend, Event Driven Architecture, Kubernetes, Asynchronous Programming, Functional Programming, Restful APIs, Terraform - **Published:** September 10, 2026 - **Apply:** https://job-boards.greenhouse.io/commercetools/jobs/7988730003 ## About the Role * At least 5 years of experience as a Software Engineer working with languages on the JVM * Search-related experience (preferably ElasticSearch) * Strong DevOps mindset as you will drive lots of infrastructure improvements * Interest in working with Scala using pragmatic functional programming patterns * Practical work experience in developing server-side systems using the JVM * Solid understanding of parallel and asynchronous programming, as well as non-blocking I/O * Experience in developing REST APIs and knowledge of scalable architectures (incl. sharding, replication, load balancing and failover) * Fluent English for work in international teams * 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 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. ## Description * Design and implement search functionalities in a PaaS ecommerce Scala backend. * Learn Scala and functional programming as your new main development tools * Develop search-related libraries based on ElasticSearch and MongoDB * Run and maintain a scalable search "infrastructure as code" on top of Kubernetes using terraform and multi-tenant architecture * Test software components regarding usability, functionality, and performance, and work closely with Product Management and DevOps. * Taking part in on-call rotation (with the worldwide distributed team) for production systems * 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 Munich, Berlin, London or Valencia office. What Sets You Apart 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. ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) - [Add Location-based Searching to Site with ElasticSearch](https://www.wearedevelopers.com/videos/77-add-location-based-searching-to-site-with-elasticsearch) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) - [Tomb rAIder: AI Search with Kotlin](https://www.wearedevelopers.com/videos/1989-tomb-raider-ai-search-with-kotlin) ## Related Articles - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)