Personal details
Yosvel Q.
Technical skills
About
Senior Full-Stack Engineer | Scalable Architecture, TypeScript & Distributed Systems | AI-Augmented Engineering
Full-Stack Engineer with 15+ years architecting and scaling multi-tenant SaaS platforms across fintech, insurance, HR-tech, and manufacturing verticals. Deep specialization in TypeScript, Node.js/NestJS, and Nx monorepo architectures, with a consistent record of cutting latency, hardening security, and leading legacy-to-TypeScript migrations at enterprise scale. Extends core full-stack engineering with production-grade AI agent orchestration (LangChain, LangGraph), building automation into the product itself rather than bolting it on as a side feature.
Skills
- AI & Agentic Workflows: LangChain, LangGraph, Anthropic (Claude) API, OpenAI API, Google Gemini API, DeepSeek API
- Core Languages: TypeScript, JavaScript (ES6+), HTML5, CSS3, SCSS
- Backend & Architecture: Node.js (NestJS, Hono, Express), Nx Monorepos, GraphQL, REST, Event-Driven Systems (Kafka, RabbitMQ), ORM/ODM (TypeORM, Drizzle, Mongoose)
- Frontend: Next.js, React (Redux, Zustand), Angular (NgRx, RxJS), Nuxt.js, Vue (Pinia), Tailwind CSS, Shadcn/UI
- Data & Storage: PostgreSQL, MySQL, MongoDB, DynamoDB, Redis
- Cloud & DevOps: AWS, Google Cloud, Azure, Docker, CI/CD (GitHub Actions, CircleCI)
- Testing: Jest, Vitest, Cypress, Playwright
Work Experience
- Architected a high-concurrency, multi-tenant SaaS platform in an Nx monorepo (TypeScript, Next.js, NestJS), establishing the modular foundation the product team ships on today.
- Cut data-fetching latency 40% by designing a rate-limited GraphQL API with layered caching strategies.
- Hardened platform security by implementing JWT-based authentication and authorization across backend services.
- Reduced manual data-processing steps by building agentic automation with LangChain and LangGraph, directly enhancing core product functionality.
- Improved frontend responsiveness via Zustand-driven state management and Next.js rendering optimizations, delivering near-instant load times.
Tech: TypeScript, Node.js, NestJS, React, Next.js, Zustand, GraphQL, MongoDB, Nx, LangChain, LangGraph, JWT, Docker, GitHub Actions
- Standardized state management across Angular and Vue codebases (NgRx, Vuex), cutting state-related bugs 35% and reducing complexity for new contributors.
- Built and maintained GitLab CI/CD pipelines, improving deployment reliability across multiple client applications.
Tech: TypeScript, Angular, RxJS, NgRx, Vue, Vuex, Quasar, GraphQL, Nx, Jest, Cypress, Docker, GitLab