Vitalii S.

Senior Full Stack Developer (Angular + NestJS) with 10+ years of experience building products used every day: from an AI video analysis platform to a hedge fund system and mobile apps. What I do best: • Angular (NgRx, RxJS) front ends for complex, data-heavy applications • NestJS / Node.js backends, API design, system integrations • Authentication and security: Auth0, Keycloak, role and permission systems • Cloud: AWS, Azure, Google Cloud (logging, storage buckets, and more) • Search and performance: Elasticsearch, Redis, MongoDB, PostgreSQL • Real-time features: chat, WebSockets, WebRTC, Firebase • Mobile apps with Ionic / Capacitor AI-accelerated delivery: I run an AI-agent workflow across the whole development cycle: code generation, automated testing, and review. It lets me ship features faster and cover more with tests, while I stay responsible for architecture, code quality, and every decision that matters. You get faster turnaround and a smaller budget for the same scope, without cutting corners. Recent work: • AI video analytics platform: NestJS services, Angular 16 + NgRx UI, Elasticsearch indexing, Redis caching • CRM for landscaping services: Angular, NestJS, Google Maps, real-time updates with Firebase • Hedge fund platform: led maintenance of a large Angular codebase in an NX monorepo • Cloud access management (CIEM) platform: front-end architecture, unit testing I have also worked as Solution Architect and Team Lead: choosing the stack, designing architecture, planning sprints, leading and scaling teams, and communicating directly with stakeholders. How I work: clean, tested code, clear communication, and ownership from concept to production. Open to: building new products, improving and scaling existing apps, architecture consulting.