Kirill Kalistratov

I’m a Senior Performance Engineer with 19+ years of experience in performance-meetup-group enterprise and high-load systems (banking, fintech, telecom). I design and implement performance testing strategies, automated CI/CD pipelines, and performance infrastructure from scratch, focusing on continuous engineering practice rather than one-time validation. My expertise spans backend performance analysis (Node.js / .NET) and PostgreSQL tuning, profiling (clinic.js), and system-level bottleneck detection (CPU, memory, GC, DB locks, connection pools).

Since September 2022, I work as an Independent Consultant providing performance engineering for enterprise and high-load backend platforms. I’ve built automated performance and integration tests using Python, integrated automated performance validation into CI pipelines, and deployed/support testing infrastructure using Kubernetes, OpenShift, and VMware ESXi. By automating performance validation, I reduced manual testing effort by ~30% and integrated observability tools like Prometheus, Grafana, and ELK to deliver actionable optimization recommendations.

Earlier, I engineered cloud-based and financial systems performance at InCountry and Sberbank, developing CI-driven load testing workflows and mentoring engineers while supporting scalable, reliable production readiness. I’ve also led performance and automation for distributed IoT platforms and large-scale banking systems—developing load generation, low-level debugging, and monitoring approaches—bringing a strong blend of backend focus and systems thinking. I’m open to remote EU opportunities (B2B or employment) and enjoy collaborating with cross-functional teams to improve scalability, stability, and performance observability.