Software Engineer

About the company

• Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale.
• The Elastic Search AI Platform is used by more than 50% of the Fortune 500.

Responsibilities

• Contributing to core performance engineering initiatives from development to production.
• Executing technical designs and plans for architectural and code-level performance improvements.
• Implementing foundational performance models and methodologies for complex, distributed systems.
• Supporting optimization strategies to ensure Elasticsearch remains performant, predictable, and scalable.
• Profiling and analyzing system behavior to identify bottlenecks in logging, metrics, vector search, and ES|QL.
• Ensuring robust performance benchmarks and regression detection for stateful and stateless (Serverless) architectures.
• Collaborating with peers to apply performance-focused development practices into new features.
• Contributing to automation efforts by building AI-assisted optimization harnesses.
• Providing technical guidance and peer reviews to other engineers.

Requirements

• Deep knowledge of Java internals and JVM memory management.
• Understanding of concurrency models; ability to write high-performance, thread-safe, lock-free code.
• Proven experience in profiling and optimizing distributed systems.
• Experience with benchmarking tools (e.g., JMH, Rally), identifying performance regressions, and implementing algorithmic or hardware-aware optimizations.
• Solid comprehension of distributed systems architecture, including partition tolerance, cluster state propagation, and scaling challenges.
• Proven track record of using AI or advanced tooling to accelerate optimization and automate benchmarking workflows.
• Ability to collaborate effectively within a team and across functions.
• Ability to work autonomously and drive decisions in a distributed team.

Conditions

• Base salary only; no variable compensation component.
• Typical starting salary range: 307,800 zł – 486,900 zł PLN.
• Competitive pay, health coverage, flexible locations and schedules, generous vacation days.
• Matching up to $2000 for financial donations and service.