Senior Platform Engineer / Site Reliability Engineer (SRE)

Cognism is Europe's leading B2B Sales Intelligence platform, helping thousands of revenue teams make better commercial decisions through trusted, compliant and high-quality data. The company is building a strategic Warsaw Engineering Hub that will become one of Cognism's two primary technology centres.

• 5+ years in Platform Engineering, SRE or DevOps.
• Hands-on AWS experience in production environments.
• Strong Kubernetes administration and troubleshooting skills.
• Experience building CI/CD pipelines and deployment automation.
• Infrastructure as Code using Terraform or equivalent.
• Experience operating production systems with high availability requirements.
• Strong scripting or programming skills (Python, Go, Bash or similar).
• Excellent communication skills and fluent English.

Nice to have:

• Experience with Kafka or distributed event streaming platforms.
• Experience with Service Mesh technologies.
• FinOps experience.
• Security hardening of cloud platforms.
• Experience with AI-powered engineering tools such as Claude Code, Cursor or GitHub Copilot.

• Design, build and continuously improve Cognism's cloud platform running on AWS.
• Develop Infrastructure as Code using modern automation practices.
• Build and maintain Kubernetes platforms supporting engineering teams globally.
• Improve deployment pipelines, CI/CD workflows, and developer productivity.
• Drive observability through monitoring, logging, alerting and distributed tracing.
• Participate in incident response, root cause analysis and reliability improvements.
• Partner with Engineering, Security and Architecture teams to improve platform resilience.
• Identify opportunities for cloud optimisation and FinOps improvements.
• Promote AI-assisted engineering practices for infrastructure and operations.

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