Job Opportunities API

Who are we For more than 20 years, our global network of passionate technologists and pioneering craftspeople has delivered  cutting-edge  technology and game-changing consulting to companies   on   the   brink   of   AI-driven   digital   transformation.   Since   2001,   we   have   grown   into   a full-service digital consulting company with 5500+ professionals working on a worldwide  ambition.   Driven by the desire to make a difference, we keep innovating. Fueling the growth of our company   with   our   knowledge   worker   culture.   When   teaming   up   with   Xebia ,   expect   in-depth  expertise   based   on   an   authentic,   value-led,   and   high-quality   way   of   working   that   inspires   all we do.     About   the   Role     Xebia  is looking for a Senior Scala Engineer to join a team building scalable, resilient backend systems. This is a consulting role embedded in a functional-first,  Typelevel -based stack, where  you'll  help design and ship high-throughput services  running on  AWS.  You'll  work closely with client architects and  Xebia's  engineering team to drive technical decisions, raise the bar on code quality, and deliver solutions that hold up under real production load.       What   You’ll  Do     Design and build high-throughput, low-latency services in Scala 3 using a modern functional stack ( Typelevel -style: cats-effect, http4s, fs2).   Define and evolve type-safe, schema-driven APIs, with attention to clean data transformations and serialization.   Lead architectural discussions, making sound trade-offs between performance, maintainability, and delivery timelines.   Conduct code reviews focused on functional-programming idioms,  effect  safety, and long-term maintainability.   Design and manage AWS infrastructure as code, working with core services such as ECS, Lambda, and managed databases/caching layers, plus event-driven components (queues, schedulers, streaming).   Instrument services for observability  and take  ownership of production reliability  and performance .   Build and  maintain  a strong automated test suite, including property-based and integration testing.   Produce technical proposals, architecture  docs , and root cause analyses for client-facing decisions.   Mentor other engineers on functional programming patterns and effect-oriented system design.   Translate complex technical trade-offs into clear recommendations for both engineering and client stakeholders.   Support technical evaluations of other consultants when  required , contributing to the assessment of skills and alignment with project needs.         What You Bring   Core experience   5+ years of professional software development experience, with solid hands-on experience in Scala and functional programming.   Production experience with a  Typelevel -style effect system and functional HTTP stack (e.g., cats-effect, http4s, fs2, or equivalents).   Experience designing type-safe, schema-driven APIs in enterprise settings.   Experience supporting high-throughput, production-grade JVM systems, including asynchronous/concurrent programming models.   Experience wi