Prepared for Cecilia Paz Soldán — Velozient
Moises Costa
Senior Full Stack Engineer
13+ years in IT, 6 years as a developer. I specialize in modernizing legacy systems into modern, AI-powered platforms — exactly the kind of engineering challenge that drives innovation at Velozient.
Philosophy
Kaizen — Continuous Improvement
Moises Costa
Rio de Janeiro, Brazil
Kaizen — 改善 — The Philosophy of Continuous Improvement
I believe in the Japanese philosophy of Kaizen: small, consistent improvements every single day. This mindset drives my career — from IT support to Senior Full Stack Engineer, from legacy systems to AI integration, from Portuguese-only to professional English. Every day is an opportunity to be 1% better than yesterday.
Small Steps, Big Results
From IT technician at 19 to Senior Full Stack Engineer — each role was a deliberate step forward.
Never Stop Learning
Marketing degree, Big Data post-grad, self-taught developer, English through 4 different methods. Learning is not a phase — it's a lifestyle.
Embrace Change
Legacy systems to React, manual processes to AI automation, Portuguese to English. I don't resist change — I drive it.
Measure & Iterate
35 AI Spaces, 22 datasets, 4 major projects. Each one better than the last. Data-driven improvement is in my DNA.
Why I'm a fit for Velozient
Legacy → Modern
Velozient transforms industries through technology. I've spent 13 years doing exactly this at DETRAN-RJ — modernizing without downtime using the Strangler Pattern.
AI-Centric Mindset
I integrate AI daily — from Claude Code in my terminal to LLM APIs in production apps. 35 AI Spaces and 22 datasets on HuggingFace prove this is not just a buzzword for me.
Kaizen Learner
I passed Brazil's competitive public exams at 19. I taught myself React, Node, Python, and now Golang. Marketing degree + Big Data post-grad. I never stop improving.
Full Stack Depth
React frontends, Node/Python backends, PostgreSQL databases, Docker containers. I own the entire stack from UI to deployment.
Cross-functional Background
Marketing degree gives me UX intuition. IT background gives me infrastructure awareness. Development gives me execution power. A rare combination.
Builder Mindset
I don't wait for specs. I identify problems, prototype solutions, and ship. My portfolio at DETRAN proves this pattern.
Technical Strengths
React & TypeScript
5 years building production interfaces with modern React patterns, Zustand, React Query, and performance optimization.
Node.js & Python
4+ years building REST APIs with Express and FastAPI. Full backend lifecycle from auth to deployment.
Golang (Adopting)
Strong theoretical foundation in concurrency, goroutines, and microservices. Actively translating Node.js patterns into idiomatic Go.
PostgreSQL & SQL
6 years with relational databases. Indexes, JSONB, CTEs, migrations, and query optimization in production.
AI Integration
2+ years integrating LLM APIs (Claude, OpenAI) into production. 35 AI Spaces and 22 datasets on HuggingFace.
Legacy Modernization
13 years in public sector IT. Expert in the Strangler Pattern — modernizing systems without downtime.
13+
Years in IT
6
Years as Developer
35
AI Spaces (HuggingFace)
22
Published Datasets
Ready to discuss
I'm excited about the opportunity to contribute to Velozient's mission. Looking forward to our conversation on April 2, 2026 at 11:30 AM (Brasilia Time).
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