Antonio Monteiro is an engineering team lead and full-stack software engineer with 12 years of experience building developer-facing systems and production web applications from the Bay Area. He blends leadership at Recall.ai with hands-on engineering—previously shipping platform and CLI improvements at Netlify and managing engineering at Ladder Insurance—while also creating and maintaining the Melange.re project. A longtime open-source contributor, Antonio has improved core tooling across languages and ecosystems, including ClojureScript/React bindings, the ReScript toolchain, Google Closure Compiler module resolution, and OCaml build and concurrency libraries. His contributions often focus on compiler/runtime compatibility, developer experience (REPLs, CLI, build snapshots), and nuanced bug fixes that improve long-term maintainability. Comfortable across front-end and back-end concerns, he pairs distributed-systems training from TU Dresden with practical production experience to bridge language runtimes and deployment pipelines. He brings an entrepreneurial mindset to engineering: shipping polished OSS projects while leading teams to deliver reliable, developer-centric products.
12 years of coding experience
8 years of employment as a software developer
Master’s Degree Distributed Systems Engineering, Master’s Degree Distributed Systems Engineering at Technische Universität Dresden
Bachelor’s Degree Computer Science and Engineering BSc, Bachelor’s Degree Computer Science and Engineering BSc at Universidade Nova de Lisboa
C2 Level English, C2 Level English at British Council
High School Science and Technology, High School Science and Technology at Escola Secundária Fernão Mendes Pinto
Electrical Engineering, Electrical Engineering at Instituto Superior Técnico
Contributions:18 releases, 576 commits, 223 PRs in 2 years 9 months
Contributions summary:Antonio primarily focused on maintaining and enhancing the ClojureScript environment, Lumo. Their contributions included refactoring and improving the REPL functionality by incorporating features like auto-completion for Javascript code, adding namespace information, and enabling code execution via the file system. They also made significant improvements to the build process by integrating with tools like Babel and Rollup to manage and optimize the bundled JavaScript code.
Simple, fast & type safe code that leverages the JavaScript & OCaml ecosystems
Role in this project:
Back-end Developer
Contributions:14 releases, 31 reviews, 142 commits in 5 years 7 months
Contributions summary:Antonio primarily contributed to the ReasonML language's core tooling and documentation. Their work focused on refining and expanding the language's features, with notable contributions to the modules, and record constraint pattern. The contributions involved improvements to the parser, and the outcome printer. Additionally, they added support for new features, such as the `\u{hex}` syntax.
leveragesjavascriptocamltype-safereasonml
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Antonio Monteiro - Engineering Team Lead at Recall.ai