Senior Software Engineer - Optimizer Hub

📋 Description

• Design, develop, and maintain high-performance Java services including protocols, APIs, data
• Build and evolve server-side OptHub components that communicate with the JVM at scale across cloud
• Debug complex distributed systems issues with limited diagnostic data and under performance
• Design and implement observability, profiling, and diagnostic tooling to support both internal
• Drive performance analysis and improvement: create benchmarks, interpret profiler output, and act
• Participate in design discussions and code reviews, raising the bar for the whole team.

🎯 Requirements

• 5+ years of strong professional Java development experience, with a focus on backend and
• Deep understanding of JVM internals: memory management, garbage collection, JIT compilation, and
• Experience building and operating distributed systems and microservices in production.
• Proficiency with concurrency, low-latency design, and performance optimization techniques in Java.
• Experience with cloud platforms (AWS, Azure, or GCP) and container orchestration (Kubernetes).
• Ability to design clean APIs and protocols; comfort working close to the metal when needed.

🎁 Benefits

• Referral Program — help us grow with great people.
• Premium IT equipment — MacBook Pro or hardware of your choice.
• 5 weeks of holidays + 5 sick days.
• Flexible working hours; full remote possible.
• Prague city center offices.
• Work alongside top experts worldwide contributing to the Java ecosystem.