Boris Feld
Senior Product Engineer (AI) at Comet
Strasbourg, Grand Est, France
Summary
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Rockstar🎓
Top SchoolBoris Feld is a Senior Product Engineer (AI) with 15 years of hands-on experience building Python-first, distributed systems and developer tooling, currently shaping AI product and SDK work at Comet. A long-time open-source evangelist and prolific contributor, he has improved projects like Pylint, Circus, PyJWT and Dulwich—often fixing platform-specific test flakiness and shipping robust CI/QA improvements. His background spans full-stack and DevOps responsibilities from SaltStack UIs to containerized ML infrastructure, and he repeatedly bridges SDK design, integrations, and deployment pipelines. Comfortable leading teams and sprints, he pairs deep Python expertise with practical experience in MongoDB, ZeroMQ, CI/CD and observability, and he often releases small utilities that address real developer pain points. Based in Strasbourg, he combines community-facing teaching and lightning talks with engineering rigor, making him as effective in documentation and developer experience as in core code.
15 years of coding experience
10 years of employment as a software developer
Master's degree Engineering in Information technology major Computing, Master's degree Engineering in Information technology major Computing at UTBMTwo-year University Full-course diploma Information technology major Computing, Two-year University Full-course diploma Information technology major Computing at IUT Belfort Montbeliard
French, English
Stackoverflow
835reputation
35kreached
17answers
0questions
Github Skills (59)
unit-testing10
git10
static-code-analysis10
github-ci10
javascript10
docker10
zeromq10
pytest10
back-end-development10
python10
langchain10
testing10
software-quality10
dockers10
terraform10
Programming languages (17)
Github contributions (5)
Lothiraldan/saltpad
Nov 2014 - Apr 2018
A gui and cli to manage saltstack deployments
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 releases, 76 commits, 57 PRs in 3 years 5 months
Contributions summary:Boris contributed to both the front-end and back-end aspects of the SaltPad project. They fixed job parsing for Firefox and updated the Docker environment and README. The user also implemented configuration updates to support the salt-api and the rest_cherrypy deployment, including adjustments to the UI and routing. Moreover, they addressed typos, corrected path generation, and fixed an async option related to job running.
clisaltstack
comet-ml/opik
Jun 2023 - Apr 2026
Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:1 release, 46 reviews, 169 PRs in 2 years 10 months
Contributions summary:Boris contributed to the `opik` repository by removing unnecessary dependencies from the Python SDK, fixing documentation for integrations, and adding new example cookbooks for various LLM models like Gemini and Groq. Their work involved modifying Python setup files, updating code related to Langchain integration, and creating documentation notebooks. They demonstrated expertise in integrating different LLM providers with the Opik platform.
agentic-workflowllmlangchainopenaiplayground
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