Roman Krylov
Frontend Engineer | React, TypeScript, System Architecture | 10+ Years Experience
- Role
- Frontend Software Engineer at Paylocity
- Location
- San Francisco, CA, US
- LinkedIn followers
- 500 followers
About Roman Krylov
Software Engineer with over 10 years of experience, specializing in Frontend Architecture and React ecosystems. I possess deep expertise in building scalable UIs, complex state management, and build-tool optimization. My strong background in backend systems allows me to design superior API contracts and highly performant, type-safe frontend applications. I thrive in high-velocity environments, focusing on UX/UI fidelity and developer experience.
Experience
Frontend Software Engineer
Aug 2025 — Present · Walnut Creek, CA, US
Designed frontend flows for large, user-generated datasets (bulk uploads, paged tables, infinite scroll), enforcing strict domain invariants to keep UI state correct under concurrent async updates and partial failures- Established end-to-end frontend testing with Playwright, increasing integration test coverage from 0% to 100% in two weeks- Built custom Rollup tooling (Webpack SCSS convention processor plugin) and optimized onboarding pipeline, reducing local environment setup time from days to ~5 minutes- Owned frontend onboarding and internal documentation, reducing ramp-up time and recurring environment issues- Partnered with backend teams to design Kubernetes-backed services and APIs supporting high-performance UI rendering.
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