Senior Software Engineer - Streams - Observability

Elastic, the Search AI Company, enables organizations to find answers in real time using all their data at scale. The Elastic Search AI Platform brings together the precision of search and the intelligence of AI to accelerate critical results across search, security, and observability.

About the Role

The Observability Streams team at Elastic builds Elastic's unified data pipeline—the layer connecting data sources to their destinations with complete control over processing and routing. Whether collecting metrics from cloud accounts, shipping logs from agents, or routing traces, Streams ties everything together.

The Streams Backend team develops the backend services powering this pipeline to ensure data is routed, processed, and delivered reliably at scale. We also maintain Logstash, the open-source streaming ETL engine in the ELK stack, and contribute actively to the OpenTelemetry Collector.

As a Senior Software Engineer on the Streams Backend team, you will help drive the design and development of core backend services and Logstash, contribute to OpenTelemetry, and support enterprise customers.

What You Will Be Doing

• Designing and implementing new features for Logstash and its plugins in Java and JRuby.
• Designing, building, and operating core backend services for the Streams program in Golang.
• Adding new features and contributing upstream to the OpenTelemetry Collector in Golang.
• Solving challenging distributed systems problems at scale.
• Maintaining, modernizing, and improving existing codebases and dependencies with automated test coverage.
• Engaging with public GitHub repositories and open-source community forums.
• Reviewing pull requests and offering technical guidance to peers.
• Collaborating with cross-functional teams to advance product objectives.
• Partnering with the support team to resolve customer issues, including participating in an on-call rotation.

What You Bring

• Proven ability to thrive in a remote-first, highly distributed environment with clear written and verbal communication.
• Strong analytical, debugging, and problem-solving skills.
• Expertise in at least one of Java, Golang, or Ruby, paired with the adaptability and willingness to learn and work across different codebases.
• A track record of leveraging AI tools to accelerate development, debug complex systems, and optimize code while maintaining high ownership of outcomes.

Bonus Points

• Familiarity with observability concepts (tracing, metrics, logging) and OpenTelemetry.
• Hands-on experience with Docker and Kubernetes.
• Experience with JRuby development.
• Background in open-source software development.
• Working knowledge of stream processing platforms (such as Kafka), databases (e.g., PostgreSQL, MySQL), and networking protocols (TCP, UDP, HTTP).
• Exposure to the Elastic Stack.

Benefits & Compensation

• Base salary range: 307,800 zł – 486,900 zł PLN
• Comprehensive health coverage for you and your family
• Generous paid time off
• Minimum 16 weeks of paid parental leave
• Charitable donation matching up to $2,000 USD (or local equivalent)
• Up to 40 hours per year of paid volunteer time