IntroductionBased in Porto, Portugal

Senior software engineer. 11 years building security and data products.

At Jscrambler since it was a 10-person startup, now as Tech Lead. I built most of its runtime code profiler, its ClickHouse security analytics and the first version of its PCI DSS AI Assistant.

See the work ↓Email me LinkedIn

Selected work at Jscrambler

01Application Profiling2019–2020 · Code IntegrityProfiles an app's real runtime behavior so code protection can be tuned per code path, letting teams apply stronger protection without slowing their app down. I built most of it, from the first prototype to the bulk of the UI.Profiling guide

02Security analytics dashboards2022–2024 · Webpage IntegrityDashboards on ClickHouse that let security teams explore millions of client-side events over time. I built them as technical lead of the newly formed Data Engineering team, and merged the Code Integrity and Webpage Integrity dashboards into one.

03PCI DSS AI Assistant2025–2026 · Webpage IntegrityHelps teams decide whether to authorize, restrict or block each script on their payment pages, with AI recommendations and audit-ready justifications. I came up with the idea and built the first version, which the product team grew into the AI Assistant.Launch post

Side projects

01Groomie2025–nowSoftware for barbershops, built solo. Barbers log the services they do and see their commission and earnings; owners manage barbers, services and prices.In developmentgroomie.pt 02Musgo2026–nowHouseplant care. Identify a plant from a photo and get care schedules that adapt to the seasons. Your plants and reminders live on your phone.Closed testinggetmusgo.app 03CrossFit2026–nowA personal CrossFit training journal: workouts, lifts and PRs since January 2025, pulled in daily.Livecrossfit.samouco.dev

04world2026Every place we've been and the ones we still want to see, on a 3D globe. Private, just for the two of us.Private

057 Samoucos2025Score calculator for the board game 7 Wonders, from military conflicts to science sets. Built for game nights with friends.Live7w.samouco.dev 06Vasco Samouco2020A full blog for my brother, a journalist, built during the pandemic (Gatsby, Netlify).Livevascosamouco.com

About

I'm a software engineer in Porto. I joined Jscrambler in 2015.

2015: Intern
2015: Developer · Code Integrity
2016: FullStack JavaScript Developer · Code Integrity
2018: Lead Software Developer · Code Integrity
2022: Technical Lead · Data Engineering
2024: Engineering Team Lead · Platform Tools
2026: Tech Lead · Platform Tools

Along the way I worked on JavaScript code protection and web security. These days I'm focused on AI, building the tools and workflows that help my team ship more than ever.

Languages: TypeScript, JavaScript
Frontend: React, Next.js, React Native (Expo), Astro, Tailwind, D3
Backend: Node.js, tRPC, GraphQL, Prisma, RabbitMQ, Redis, Stripe
Data: PostgreSQL, MongoDB, ClickHouse, Cube, Supabase, SQLite
Infra: Docker, Kubernetes, GitLab CI/CD, Grafana, Vercel, Cloudflare
AI: Claude Code, Codex, Cursor, Claude API, MCP servers, agent skills