Software Engineer (Medior / Senior) - Distributed Systems

SmartCat is an AI-driven company that works on hard data problems. We're selective about the projects we take on, and we care that the work actually matters. About The Role We're looking for a backend engineer, Medior or Senior, to help build and run large event-driven systems that have to stay reliable under heavy load. Most of the work is microservices that move a lot of data around. As a Medior you'll work closely with the more experienced people on the team; as a Senior you'll lead the design decisions and help others level up. What you'll do Build and run microservices that handle large volumes of data Connect services with Kafka and Avro, and keep the schema contracts between them clean Work with different data storage (Cassandra, ElasticSearch, Postgress, Redis….) and handle schema changes without breaking things Keep services observable, and take the manual work out of testing and deployment As a Senior: own the architecture decisions and mentor the rest of the team What we're looking for 3+ years for Medior, 5+ for Senior, mostly with Java and Spring Boot. Python or Go is a plus You've built distributed systems and are comfortable with microservices and event-driven design Hands-on with Kafka (Kafka Streams is a plus) and Avro with a schema registry Good with PostgreSQL and SQL. Experience with jOOQ, Flyway, or reactive access (R2DBC / Project Reactor) is a real plus You care whether things work in production: metrics, tracing and logging (we use OpenTelemetry, Micrometer and Prometheus), and fallback patterns like Resilience4j You know Docker and Kubernetes. We run on-prem and on OCI; cloud experience (AWS, Azure, GCP) is welcome too Security matters to you. Pen testing or red-team experience is a big plus You write tests, unit and integration (we use Testcontainers) Nice if you've worked with OpenSearch or Elasticsearch, Redis, or Spring Cloud You like figuring things out and trying different approaches You ask for help when you're stuck. We work as a team If you're into ML or LLMs that's a nice bonus (we're an AI-driven company), but it's not what this role is about What we offer Clearly defined pay grades: from L1 (talented junior) to L10 (principal) The career path that connects these grades, so you know where you're headed (at least here with us) Loyalty coefficient: 10% on net compensation after 3 years at SmartCat, 20% after 5 years Knowledge budget Flexible hours and work from home We're transparent, from L-levels to salaries, strategy and financials Full support as you build up your expertise Powered by JazzHR zDnN3CzQnA