10/23/2026 updated
100 % available
Senior Frontend Engineer | React · TypeScript · AI-Native Development
Suances, Spain
Only remote
MSc in Computer ScienceAI AgentsUnit TestingPostgreSQLMongoDBNode.jsRedisE2e TestingTypeScriptReact.jsGitDocker
I'm a Senior Frontend Engineer and hands-on Engineering Team Lead with 13+ years of experience building production software in FinTech, banking, SaaS, and iGaming.
Frontend Development
- React, Next.js, TypeScript, JavaScript
- TanStack Query, Zustand, MobX, Material UI, Tailwind CSS
- Responsive interfaces, reusable components, design systems, accessibility
- Canvas, WebGL, complex animations, and performance optimization
Backend & Infrastructure
- Node.js, NestJS, REST APIs
- PostgreSQL, Redis, MikroORM
- Docker, Google Cloud Platform, GitHub Actions, CI/CD
- Automated testing with Jest, Vitest, and Playwright
AI & Development Automation
- Claude Code, MCP, AI agents, LLM integrations
- AI-assisted development workflows, from planning to deployment
- Automated testing, code review, and release processes
Professional Experience
At ComplyControl, I lead engineering of a financial compliance platform, including sanctions screening, transaction monitoring, AML rules, and AI-powered adverse media analysis.
Previously, I worked on interactive casino games at Proxy Live Solutions, frontend tools and WebGL applications at Wix, and online banking systems at PrivatBank.
I have experience taking projects from early prototypes to production, making architectural decisions, mentoring developers, and working directly with stakeholders.
What I can help with
- Building or modernizing React/TypeScript applications
- Frontend architecture and performance optimization
- AI integrations and development workflow automation
- Technical leadership and engineering consulting
I'm based in Spain and available for remote B2B contracts with European and international clients.
Experience
Professional experience10+ years
Freelancer since2025
Languages
EnglishFluentRussianNative speakerSpanishBasic knowledgeUkrainianNative speaker
Project history
Leitung der hands-on Entwicklung von React/TypeScript-Anwendungen fuer Financial Compliance, einschliesslich komplexer Screening- und Monitoring-Interfaces. Verantwortung fuer Frontend-Architektur, wiederverwendbare Komponenten, API-Integrationen und technische Entscheidungen. Code-Reviews, Entwickler-Mentoring sowie Aufbau eines Claude Code/MCP-basierten Team-Workflows fuer Planung, Spezifikationen, Implementierung, Testgenerierung und Releases.
Entwicklung performancekritischer Casino-Game-Interfaces mit komplexen Canvas/CSS-Animationen, interaktiven Features und Produktions-API-Integrationen. Lieferung interner Admin-Tools und wiederverwendbarer Komponenten sowie Optimierung des UI-Renderings und Sicherstellung der Zuverlaessigkeit durch Tests und Peer-Reviews.
Entwicklung interaktiver Wix-Interfaces, darunter ein WebGL-gestuetzter Bildeditor mit Zuschneiden, Rotation und Freistellen. Erstellung von Accessibility-Analyse-Tools und gemeinsamen UI-Komponenten sowie Zusammenarbeit mit Design- und Produktteams bei A/B-getesteter Feature-Lieferung.