Currently at Thoughtworks (Chicago, remote from GMT-3) · 4+ years shipping cloud-native systems for platforms serving 100k+ monthly users.
I build secure, scalable cloud-native backends and the full-stack interfaces that sit on top of them. Day job is senior consulting work at Thoughtworks — two years of it also at CI&T before that, so I'm comfortable in international cross-functional teams with tight review cultures. Off-hours I run a homelab, ship Discord bots with real users, and write AI-developer tooling.
Impact highlights:
- 100k+ monthly users supported on backend infra I built/maintained (Node.js + AWS Lambda)
- Deployment time 6h → 2h (−30%) by moving to serverless + tuning CI/CD
- Incident response +40% faster via Splunk/CloudWatch observability
- Production errors −25% through Mocha/Jest unit + integration coverage
- Internal workflow efficiency +40% via automations and tool-building
| Project | What it does | Stack | |
|---|---|---|---|
| Lucky | Discord music bot — playback, playlists, cloud streaming | TypeScript · Redis · Discord.js |  |
| ai-dev-toolkit | AI-developer workflow — skills, hooks, agents, RAG patterns | Node.js · TypeScript |  |
| homelab | Self-hosted infra — Docker Compose, Caddy, Tailscale, Prometheus/Grafana, SOPS | Python · Bash · Docker |  |
Additional private repos (finance tools, infra dashboards, etc.) — available on request.
Also: Serverless Framework · Splunk · Kubernetes (k3s) · SOPS/age · Tailscale · Caddy · SOLID · Clean Architecture
- AWS Certified Cloud Practitioner
- Bachelor's in Computer Systems — FIAP (2025)
- Senior / Staff full-stack or backend contract opportunities (US · EU · Canada)
- Open-source collaboration on developer tooling, observability, or AI workflows
- Architecture + system-design discussions — happy to review or pair
📫 Get in touch: lucas.diassantana@gmail.com · LinkedIn
