Senior Distributed Systems Engineer / Tech Lead

📋 Description Design and lead system changes for high performance, scalability, observability in ads. Implement, test, deploy, monitor HTTP/gRPC services and batch jobs in Java and Python. Provide hands-on technical leadership: solve complex system challenges and perform code reviews. 🎯 Requirements Excellent understanding of complex IT systems. Strong knowledge of Internet protocols (DNS, HTTP, cookies et al). Experience with concurrent programs and distributed systems. Practical ability to observe, monitor and analyse production systems. Ability to critically analyze solutions for performance. C1 level in English and Polish. 🎁 Benefits Projects focused on extreme performance and high code quality. Interdisciplinary, self-sufficient team collaboration. Access to modern technologies for large-scale, high-impact projects. B2B contract. Remote work or offices in Warsaw or Kraków.