Nuno Campos
Chief Technology Officer at Witan Labs
Stony Stratford, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolNuno Campos is a seasoned technology executive and builder with 11 years of hands-on experience founding and scaling developer-focused products and platforms. As a founding engineer at LangChain he led OSS efforts, created LangGraph (28M+ downloads) and scaled LangChain.js and LangSmith, then moved into CTO roles where he continues to blend product thinking with engineering leadership. He is a full‑stack contributor comfortable across front-end UX, back-end systems, and data/ML tooling—evidenced by contributions to projects from react-refetch and enzyme to scikit-optimize and LangChain’s own libraries. Known for pragmatic attention to testing and performance, he has a track record of shipping robust, well-tested features and architectural improvements for high-throughput services. Based in Stony Stratford, UK, he pairs an MSc in Finance with deep engineering chops, bringing a rare mix of business sensibility and technical execution to startup-scale problems.
11 years of coding experience
11 years of employment as a software developer
Master's degree, Finance, Master's degree, Finance at Nova School of Business and Economics
Portuguese, English
Github Skills (63)
algorithm10
assertion10
algorithms10
javascript10
develop10
back-end-development10
python10
fetchr10
langchain10
scikit10
testing10
hot-module-replacement10
fetcher10
typescript10
categorical-data10
Programming languages (16)
Github contributions (5)
langchain-ai/langgraph
Aug 2023 - Apr 2025
Build resilient language agents as graphs.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:516 reviews, 1028 PRs, 1679 pushes in 1 year 8 months
Contributions summary:Nuno appears to have contributed to the core functionality of a language agent system, specifically related to graph processing and state management. They implemented features for streaming and caching within the language graph framework, as indicated by the modifications to the pregel package. These changes include enhancements to event handling and support for subgraphs, making the agent's execution more efficient.
langchain-ai/opengpts
Nov 2023 - Jul 2024
Role in this project:Back-end Developer
Back-end DeveloperContributions:44 reviews, 141 PRs, 243 pushes in 8 months
Contributions summary:Nuno primarily focused on back-end development, specifically integrating a new agent executor using Permchain. They implemented the necessary classes and channels for integrating the agent executor, refactoring existing agent code. They also made adjustments to agent types for more streamlined and reliable integration, and updated the front end to reflect these changes.
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