Senior Backend Engineer at FYULS

Architected and launched a greenfield backend platform within 3 months. Defined service boundaries, data models, and API contracts to enable scalable growth. Designed modular microservices architecture, enabling independent deployments and improving development velocity. Built and standardized CI/CD pipelines, reducing deployment time by 15% and increasing release reliability. Established engineering best practices (code reviews, branching strategies, documentation), improving team productivity and onboarding efficiency. Partnered with cross-functional teams, resulting in faster feature delivery and reduced integration issues.

Senior Backend Engineer at Printful

Owned and scaled 3 high-traffic backend services handling millions of transactions annually, maintaining sub-200ms response times under peak load. Led migration from monolith to microservices, enabling daily deployments and reducing release cycles by 70%+. Designed versioned REST APIs with contract testing, reducing breaking changes and improving integration stability. Resolved performance bottlenecks (N+1 queries, missing indexes), reducing latency by up to 30% without additional infrastructure. Improved monitoring and alerting, reducing incident response time and increasing system reliability. Mentored 3–4 engineers through code reviews and pair programming, supporting 2 promotions to Senior Engineer. Created runbooks and incident documentation, reducing MTTR and improving on-call efficiency.