Senior Software Engineer / Tech Lead

Key details

Full job description

RTB House seeks Senior Engineers for its Bidding Platform team, responsible for processing over 20 million requests per second in real-time ad auctions globally. The role involves designing and leading system changes to ensure high performance, scalability, and observability of ad display and tracking systems. Responsibilities include developing and maintaining HTTP/gRPC services and batch jobs in Java and Python, environment setup, configuration, production monitoring, and providing technical leadership including code reviews and project planning. Candidates must have strong knowledge of complex IT systems, internet protocols, concurrent programming, distributed systems, production system monitoring, performance analysis, and high scalability and availability. Proficiency in English and Polish at C1 level is required. Experience in AdTech or Real Time Bidding and Real User Monitoring systems is a plus. Technologies used include Java, Python, Aerospike, Memcached, Google Cloud Platform, BigQuery, MinIO, Kafka, Clickhouse, PostgreSQL, Elasticsearch, Kubernetes, Prometheus, Jenkins, and Graphite. The position offers remote work or office locations in Warsaw or Cracow, with cooperation based on a B2B contract.