Summary
Jesse-daniel Belleau-karaskewich is a Full Stack Software Engineer with nine years of experience building and optimizing cloud-native, high-throughput systems across startups and enterprise teams. He has driven measurable operational improvements—leading cost-saving migrations, halving p99 latencies for real-time fraud prevention, and executing zero-downtime Cassandra upgrades—while working with technologies like Kubernetes, Kafka, Cassandra, AWS (including Graviton), Prometheus/Thanos, and Terraform. Comfortable from frontend state management (NgRx/Angular) to backend JVM tuning and infrastructure automation, he combines hands-on coding with pragmatic system design and runbook-driven reliability. Notably, he pairs performance tuning expertise (thread pools, GC, sub-compaction) with developer enablement, having created onboarding materials and automation frameworks that accelerate team velocity. Based in Ottawa, he currently contributes at Pinterest after senior backend and platform roles, and brings a curious, problem-first mindset that seeks challenges that make his brain “really think.”
8 years of coding experience
8 years of employment as a software developer
Bachelor’s Degree, Computer Science with Co-op, Major Average: 91%, Bachelor’s Degree, Computer Science with Co-op, Major Average: 91% at Brock University