Full-Stack Software Engineer with 15+ years of industry expertise and a strong foundation in Mathematics and Computation.
I specialize in building scalable SaaS platforms and intelligent systems using TypeScript, Node.js, and modern front-end frameworks like React, Vue, and Angular. I enjoy designing clean architectures, optimizing performance, and leading high-impact remote teams.

Lately, I've been integrating AI agents with LangChain and LangGraph, developing automation pipelines and next-gen user workflows.

• Languages & Tools: TypeScript, JavaScript (ES6+), HTML5, CSS3, SCSS
• AI / Automation: AI Agents, LangChain, LangGraph
• Frontend: Next.js, React (Redux, Zustand), Angular (NgRx, RxJS), Vue (Pinia), Nuxt.js, Tailwind CSS, Shadcn/UI
• Backend & APIs: Node.js (NestJS, Hono, Express), GraphQL, REST, TypeORM, Drizzle ORM, Mongoose
• Databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Redis
• Cloud & DevOps: AWS, Google Cloud, Azure, Docker, CI/CD (GitHub Actions, CircleCI)
• Testing: Jest, Mocha, Cypress, Playwright

• BSc in Mathematics and Computation
  University Silverio Blanco Núñez (Cuba)

• Building a multi-tenant platform with Next.js, NestJS, and MongoDB
• Architecting secure GraphQL APIs and AI-enabled features using LangChain
• Experimenting with monorepos, automation, and developer UX tools
• Running a remote freelance practice and contributing to open source

In my free time, I explore emerging tech (AI agents, Web3), build tools, participate in hackathons, and contribute to open-source projects.
I also enjoy reflecting on life, visiting temples, and listening to Thai music.

• Arc.dev: @yosvelquintero
• LinkedIn: yosvelquintero
• StackOverflow: Yosvel Quintero
• Twitter/X: @yosvelquintero