Senior Product Engineer, Full-stack & DevOps

Helder Oliveira is a Product Engineer and creative based in London, specializing in full-stack application development across web, mobile, blockchain, and embedded platforms. He has strong expertise in client-side technologies like React, Electron, Roku’s Scenegraph, Swift, and SwiftUI, with a focus on UX and design-first thinking. On the service-side, he is proficient with traditional hosting, containers, and serverless architectures including AWS, GCP, Cloudflare Workers, CloudFormation, SAM CLI, nodejs, bunjs, MySQL, Postgres, NoSQL, grpc, Redis, Docker, and nginx. He has also developed developer tools (CLIs, SDKs) primarily in Typescript/JavaScript and has experience with systems languages like Rust and Zig. Helder emphasizes clean code, great UX, developer experience, documentation, rapid iteration, and workflow automation with CI/CD (GitHub Actions, Bash scripts). He is also familiar with modern development practices leveraging coding agents and LLMs.