Hey there.
I'm Luis Fernando, a software engineer based in Teresina, Brazil. I work at the intersection of solid backend engineering and well-crafted frontend.
Currently Tech Lead at HeyDev Software House, leading a team of 10 developers.
Experience
HeyDev Software House May 2025 – present
Solution Architect → Tech Lead - Joined as Solution Architect; took over technical leadership after 4 months
- Leading a team of 10 developers
Novo Saque Securitizadora Jan 2025 – Aug 2025
Mid-level Software Engineer - Infrastructure migration from Digital Ocean to AWS (EKS, Docker)
- Server-side FGTS and credit card simulations, reducing Caixa API calls by 60%
- GiroTech banking integration for early FGTS withdrawal
- Federal compliance in a high-performance environment
DubPay Finance Solutions 2024 – 2025
Mid-level Software Engineer - Facial recognition KYC via Celcoin
- Scalable AWS infrastructure (EC2, EKS, VPC)
- CI/CD pipelines for Laravel services with GitHub Actions
ETIPI – Piauí State IT Company 2023 – 2025
Junior Software Engineer → Tech Lead - Led a team of 12 developers using Scrum and agile ceremonies
- Microservices with full observability stack (Elastic Search, Kibana, Uptime Kuma)
- "Passe Livre Intermunicipal" system — eliminated nearly all in-person queues for people with disabilities
- Java Spring Boot template adopted by 200+ internal projects
UFPI – Federal University of Piauí 2021 – 2022
Intern - Maintenance of university legacy systems
- Infrastructure migration and CI/CD pipelines with GitHub Actions
Stack
Backend: Python (FastAPI, Django), Java (Spring Boot)
Frontend: JavaScript, React, React Native, Expo
Infra: AWS (EC2, EKS, VPC, CloudWatch), RedHat OpenShift, Docker
Data: PostgreSQL, MySQL, Redis, MemCache
Observability: Grafana, ElasticSearch, Sentry, Uptime Kuma