Fellipe Pavin
Software Engineer · Full Stack (Go, React, Node.js)
fellipe306@gmail.com+55 85 99268-8102Fortaleza, Ceará, Brazil · Open to Remotepavin.megithub.com/fap233linkedin.com/in/fellipe-pavin
Summary
Full Stack Software Engineer with 9+ years of production experience. Founded and scaled a multi-tenant SaaS platform from zero to 10,000+ paying recurring users at 99.9% uptime — owning engineering, infrastructure (Linux, Docker, Nginx, Cloudflare WAF) and operations end-to-end as a single-person tech team. Reduced legacy SQL latency by ~40% via targeted refactoring. Currently delivering custom software to international and local B2B clients as an independent engineer, with focus on Go (Golang), Node.js, TypeScript and React/Next.js. Pragmatic product mindset, fluent English and remote-async work experience.
Technical Skills
- Languages
- Go (Golang), TypeScript, JavaScript, C# (.NET), PHP, SQL
- Frontend
- React.js, Next.js, Tailwind CSS, HTML5, CSS3
- Backend
- Node.js, Laravel, Express, REST APIs, Microservices, Entity Framework, Prisma ORM
- Databases
- PostgreSQL, MySQL, SQL Server, Redis, PostGIS
- DevOps & Infra
- Docker, CI/CD Pipelines, Linux (Arch / Ubuntu / Debian), Nginx, Cloudflare (WAF, CDN, DNS), Git/GitHub, Vercel
- Practices
- Clean Architecture, SOLID, TDD, Agile / Scrum, Code Review
- Languages (spoken)
- Portuguese (Native), English (Fluent)
Experience
Software Engineer (Contractor) · Self-Employed
January 2024 — Present · Fortaleza, Brazil · Remote- Delivered 8+ production applications to international and local B2B clients across healthcare, logistics, real-estate, services and entertainment verticals.
- Designed and implemented RESTful APIs and microservices in Go (Golang) and Node.js with focus on concurrency patterns, clean architecture and type safety.
- Built responsive interactive frontends with TypeScript, React, Next.js and Tailwind CSS — mobile-first and accessibility-conscious.
- Owned full deployment lifecycle: Docker containerization, CI/CD pipelines for automated testing and delivery, Linux environments and cloud infrastructure (Vercel, VPS).
- Translated vague business requirements into concrete technical specifications and delivered code with 100% client satisfaction across all engagements.
Founder · Tech Lead · Full Stack Engineer · Crescigram (SaaS Platform)
January 2018 — December 2023 (6 years) · Fortaleza, Brazil- Founded, launched and scaled a multi-tenant SaaS platform from zero to 10,000+ paying recurring users — owning engineering, product, billing, customer support and infrastructure as a single-person tech team.
- Sustained 99.9% production uptime on a PHP/Laravel + MySQL monolith over 6 years through proactive monitoring, observability and a tight bug-fix cadence.
- Reduced legacy SQL query response times by ~40% via targeted refactoring and indexing, eliminating bottlenecks during peak-traffic windows.
- Operated production infrastructure end-to-end: Linux servers (Ubuntu/Debian), Docker-containerized environments, Nginx and automated CI/CD deployment pipelines.
- Hardened the platform's edge with Cloudflare WAF and DDoS mitigation; managed DNS, SSL and CDN for global content delivery.
- Authored Shell automation that eliminated hundreds of hours of manual operational toil per year and sustained the unit-economics of running engineering + ops solo.
- Drove the full product lifecycle — discovery, scope, build, ship, support, retention — translating user feedback into roadmap and shipped features.
Selected Projects
- MedSpace Brasil — medspacebrasil.com.br — B2B marketplace connecting clinics and medical equipment suppliers (Next.js, TypeScript).
- Fresh Cleaning 4U — Operations SaaS for an Australian cleaning company — clients, calendar, invoices, SMS reminders, ABN-compliant invoicing (Next.js, TypeScript).
- Macroluz — macroluz.com.br — Corporate site for a natural lighting engineering firm with industrial product catalog and lead capture.
- LastMile Brasil — projeto-lastmile-brasil.vercel.app — Last-mile coverage platform for ISPs with PostGIS geographic search and integrated checkout.
- Veritas Task Manager — github.com/fap233/desafio-fullstack-veritas — Full-stack Kanban with Go backend, React frontend, Docker and CI/CD.
Full portfolio: pavin.me
Education
Descomplica Faculdade Digital
Apr 2024 — Oct 2026 (Expected)Associate's Degree in Systems Analysis and Development (CST — Análise e Desenvolvimento de Sistemas).
Certifications
Back-End Developer · Front-End Developer · Basic Front-End · Programmer