Hi, I'm Leonardo 👋

Senior Backend Engineer specializing in Go, gRPC, distributed systems, and high-performance APIs.
I design and build scalable, maintainable backend services that handle real traffic.

Currently at SWORD Health building core platform features for a high-traffic health-tech product.
Previously built in-house CRM platforms and microservices at Altice USA and other companies across Brazil, US, and Europe.

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🛠️ Tech I work with daily

Languages & Core
Go gRPC Node.js TypeScript Java PostgreSQL MySQL

Architecture & Infra
Microservices Distributed Systems Kubernetes Docker REST GraphQL Event-driven Observability

Cloud & Tools
AWS GCP CI/CD TDD Clean Architecture

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🔥 Featured Projects

Project	Description	Stack
auto-escala	Pure Go admin system for shift & schedule management (private)	Go, Fiber, Templ, HTMX, MySQL
escala-voluntarios	Volunteer scheduling platform for church services (private)	Go, Fiber, Next.js, MySQL, Terraform
meower	Microservices social network demo (search + real-time)	Go, Elasticsearch, Postgres, Vue, Docker
bookstore-api	Clean REST API example	Go
superfin	Fintech-style application	Go
go-design-patterns	Design patterns implemented in Go	Go

Several of my recent production projects are private (enterprise CRM, health platform, internal tools, scheduling systems). Happy to discuss architecture and trade-offs in interviews.

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✍️ I also write about Go

Recent posts on leogsouza.dev:

• Mastering Concurrency in Go
• The Context Package Explained
• Building a gRPC Service in Go

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📫 Let’s connect

• 🌐 Website / Blog: leogsouza.dev
• 💼 LinkedIn: linkedin.com/in/leogsouza
• 🐦 X/Twitter: @leogsouza
• ✉️ Email: leogsouza@gmail.com

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📊 GitHub Stats

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Open to senior/staff backend roles (Go-heavy, distributed systems, platform engineering) and interesting technical conversations.