Frontend & Mobile Engineer · React & React Native · 6+ years
FinTech & e-commerce · Bishkek, Kyrgyzstan · Remote
I build consumer-facing web and mobile products. For the last five years I worked on a FinTech investment-management platform — three products, 470+ institutional clients — where I owned frontend architecture, built and documented the design system, and set up the testing culture. Alongside that I shipped React Native apps that have hundreds of thousands of installs.
| ME QR — QR Code Generator | Dynamic QR generation and scanning with custom code design. Published 2022, still live and actively maintained. |
| ME Ticket Scanner | Ticket validation for event organisers. Published 2021, still live. |
Frontend — React 18, Next.js (App Router, React Server Components, SSR), TanStack Router and Query, Zustand, Redux. Design systems: 60+ TypeScript components on Radix UI and Tailwind, documented in Storybook.
Mobile — React Native and Expo for iOS and Android, from architecture through App Store and Google Play releases.
Backend where it's needed — Node.js (Express, Nest), REST and GraphQL, PostgreSQL, MongoDB, Prisma.
Quality as part of the build — Playwright, Jest and React Testing Library; WCAG 2.1 AA accessibility; CI/CD on GitHub Actions with linting and dead-code detection wired into the pipeline.
- Web — LCP 3.6s → 2.2s, Lighthouse 78 → 96, client JS bundle −28%, TTFB −35%
- Mobile — scroll FPS ~40 → stable 60, list render time −55%, cold start 2.8s → 1.9s, bundle −18%
Most of my production work lives in private client repositories, so what is public here is a mix of smaller personal projects and testing sandboxes. I'm glad to walk through the commercial work — architecture decisions, trade-offs, what I'd do differently — in a conversation.
| loan-management-app | Loan management CRUD service — Next.js 15, TypeScript, Prisma + PostgreSQL, Tailwind v4. Validation, status tracking, soft deletes. |
| petPR-playwright-circleCI | End-to-end test suite on Playwright, wired into CircleCI and GitHub Actions. |
| Jest | React + MUI application used as a sandbox for unit and component testing with Jest and React Testing Library. |
| n8n | Self-hosted n8n on Railway running my scheduled pipelines — a Solana token scanner auditing new launches through RugCheck, Helius, Birdeye and Jupiter, with dev-wallet and bonding-curve filtering, plus job discovery. Alerts to Telegram. |
Also teaching frontend and React Native — I mentored students and onboarded engineers for three years.