FREDY OTONIEL S.

I’m a software developer with a strong focus on building reliable, maintainable, and scalable systems. Programming has been my craft since age 12, and I bring that curiosity and care into every project. What I do: Backend development: APIs, microservices, integrations (TypeScript/Node.js, Python, Golang) Frontend development: Responsive, accessible, performant interfaces (React, Next.js) DevOps and tooling: Linux systems, CI/CD, containers, automation, observability Data workflows: ETL scripts, REST/GraphQL clients, third‑party API integrations Strengths: Clean, well-tested code with clear documentation Strong debugging and performance optimization Production-minded: logging, metrics, error handling, security basics Smooth collaboration: proactive communication, reliable delivery, time-zone friendly Selected accomplishments: Built and deployed REST/GraphQL APIs serving thousands of daily requests with low latency Migrated legacy scripts to modern TypeScript/Python with improved test coverage and CI Designed Golang microservices reducing response time and lowering infrastructure costs Automated Linux server tasks and CI pipelines to streamline releases Tech stack: Languages: TypeScript/JavaScript, Python, Golang Frameworks: Node.js, Express, FastAPI, Flask, React, Next.js DevOps: Linux, Docker, CI/CD (GitHub Actions/GitLab CI), Nginx Databases/Queues: PostgreSQL, MySQL, Redis, SQLite Cloud/Other: REST/GraphQL, WebSockets, OAuth, Google Workspace Admin Certifications: LPIC-2 Linux Engineer (201-450, 202-450) Google Workspace Administrator Let’s work together: I’m available for backend/frontend development, API design, integrations, refactoring, and DevOps automation. I can start with a small milestone or code audit to deliver quick wins.