Senior Software Engineer & Technical Leader
Backend • Distributed Systems • PostgreSQL • Performance • Self-Hosting
I’m a Senior Software Engineer and Technical Leader based in Brazil, currently working at Tensai, building large-scale systems for data collection and statistical analysis.
My day-to-day work lives at the intersection of:
- backend architecture,
- database performance and data modeling,
- system scalability and reliability,
- and pragmatic engineering decisions that survive production.
I also write regularly about how I actually work — from PostgreSQL tuning and backend trade-offs to homelabs, self-hosting, and productivity as a tech lead.
Dev blog: https://lucasduete.dev
Some topics I write about:
- PostgreSQL performance tuning (indexes, batch queries, VACUUM, real EXPLAIN analysis)
- Backend architecture and trade-offs
- Self-hosting & homelab (Proxmox, Docker, observability, networking)
- Productivity systems and workflows for senior engineers and tech leads
- Remote-first development environments
Backend
,
- REST APIs, batch processing, async workflows
(performance tuning, indexing strategies, query plans)
Infrastructure
/ containers
- Proxmox, self-hosted services
- Observability (Grafana, Prometheus)
Engineering interests
- Distributed systems
- Database internals & performance
- System design
- Developer productivity
- Personal knowledge management (PKM)
AI
- Blog: https://lucasduete.dev
- LinkedIn: https://www.linkedin.com/in/lucasduete
- GitHub: https://github.com/lucasduete
If you’re interested in backend systems, PostgreSQL performance, or self-hosting, feel free to reach out.