Open to opportunities

Валентин Замилюхин

@0003432

Message

I build high-performing React and TypeScript SaaS applications with scalable frontend architecture.

Poland

Message

I've built React and TypeScript applications for SaaS products and commercial web platforms for six years. At KODO Labs, I became the main frontend engineer for a multi-tenant workplace compliance and case-management platform.

I developed organization-specific configuration, SSO integrations, feature flags, RBAC, and isolated workflows for Reporter, Manager, Partner, and Admin applications. I also proposed a Feature-Sliced Design migration, collaborated with the CTO on large initiatives, and improved Core Web Vitals to achieve a Lighthouse Performance score of 93.

Previously at SutoSoft, I delivered customer-facing React features for e-commerce platforms, dashboards, and content-driven sites serving around 5,000 daily visitors. I improved business-critical pages to Lighthouse scores of 95+ for Performance and 100 for SEO while building responsive interfaces from Figma and maintaining component tests.

Experience

Work history, roles, and key accomplishments

Frontend Developer

KODO Labs

Jun 2023 - Jun 2026 (3 years)

Delivered complex product features for a multi-tenant SaaS platform, including frontend architecture, authentication, RBAC, and performance optimization. Proposed and implemented Feature-Sliced Design, achieving a Lighthouse Performance score of 93.

React TypeScript Next.js Redux Zustand React Query Context API REST APIs WebSockets Vitest React Testing Library Lazy Loading Virtualization Git CI CD Vite Webpack Agile Scrum OpenAI API Claude Code

Frontend Developer

SutoSoft

Jun 2020 - May 2023 (2 years 11 months)

Developed React applications integrated with Laravel backends for international clients, focusing on performance, usability, and maintainable frontend solutions. Achieved Lighthouse scores of 95+ for Performance and 100 for SEO.