Aveiro, Portugal · Remote internationally
Lead / Staff Software Engineer
Backend & Platform · Go · Python · Ruby · Node.js
Explore my workDevelopment first
For more than 18 years, I have designed and built software products, backend systems, and platforms that teams can evolve with confidence.
Development is my core craft. My experience in SRE, DevOps, cloud architecture, and reliability adds a practical advantage: I understand what happens after the code ships.
Go · Python · Ruby · Node.js
PostgreSQL · MySQL · MongoDB
Redis · RabbitMQ · NATS
SRE · DevOps · Cloud · CI/CD · Observability
Portuguese: Native · English: Advanced
Six chapters that connect software, systems, and technical leadership.
End-to-end ownership of digital products, from product conception and architecture to implementation, infrastructure, and operation.
Built an internal product bootstrap platform in Go, PostgreSQL, and Redis that automated cloud product stacks and their dependencies.
Engineered secure distributed environments and private communication across multiple cloud providers for encrypted-data workloads.
Led reliability work for thousands of game servers across eight countries and four continents, balancing player experience, availability, and cost.
Led the architecture, domain decomposition, data migration, and service development behind a major software modernization.
Built the development foundation in web systems, PHP, server architecture, and production operations.
Selected impact
I developed an internal platform that created each product dependency automatically and established reproducible Development, QA, Staging, and Production environments.
The result: new projects started 70% faster and reached publication 85% faster, with fewer setup errors and less rework.
I designed the environment from the ground up for multi-party computation workloads, with private routes, isolated resources, and high-performance communication between cloud providers.
The impact: faster and safer communication across clouds, with an infrastructure foundation designed for sensitive data.
As SRE Coordinator, I led a team responsible for availability, performance, latency, observability, and cost efficiency across a distributed operation in eight countries.
The impact: more stable environments, preventive response, and a consistent player experience at global scale.
I led the project from architecture and domain decomposition through data migration and development of the services that replaced a single Perl and MySQL system.
The new architecture reduced coupling and allowed teams to develop and publish services independently, accelerating product improvements.
The differentiator
Reliability, observability, delivery automation, and cloud architecture are part of how I make engineering decisions, not a separate phase after development.
GacTec products
Conception, product decisions, architecture, code, data, infrastructure, release, and ongoing evolution.
A monthly accounting operations workspace built for Portugal. It connects document collection, ATCUD and QR validation, SAF-T and e-Fatura imports, bank reconciliation, human approval, and auditable closing.
Go · Next.js · PostgreSQL · NATS
Visit productDirect digital commerce and operations for restaurants, cafés, pastry shops, and food trucks, with an installable storefront, ordering, and multi-channel consolidation.
Go · Next.js · PostgreSQL · Redis
Visit productA privacy-focused native app that reads the Portuguese Tax Authority QR code on invoices and turns receipts into organized, searchable expenses.
Swift · SwiftUI · Kotlin · Jetpack Compose
A worldwide map and community where street riders discover and document spots, creators publish their work, and organizations help sustain the scene.
Go · Next.js · PostgreSQL · OpenStreetMap
Visit productContact
For senior software engineering roles, product architecture, or a difficult backend and platform challenge, email is the fastest way to reach me.