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Eugine KimutaiEK
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Eugine Kimutai

@euginekimutai

Senior Software Engineer at Petual building a RAG assistant that cut support-team manual lookups by roughly 40%.

United States
Message

At Petual, I built a production RAG assistant using the OpenAI and Anthropic APIs, with streamed responses, tool calling, and citations to source passages. It cut manual lookups for the support team by roughly 40%.

At Retool, I shipped features across the app-building platform and improved the editor’s performance, reducing time-to-interactive on large applications from about six seconds to under two. Earlier at Yelp, I led a five-engineer squad on business-owner tooling and rebuilt a legacy surface as a React and TypeScript application.

Experience

Work history, roles, and key accomplishments

PE
Current

Senior Software Engineer

Petual

Sep 2025 - Present (1 year 1 month)

Owns end-to-end delivery of the customer-facing web platform, including React 19 and Node.js services, and designed Postgres schema and Drizzle migration workflow on Supabase. Built retrieval layer in Python with semantic chunking and hybrid search, and shipped a production RAG assistant with SSE-streamed responses and tool calling.

Yelp logoYE

Technical Lead, Full Stack

Jan 2021 - Jul 2021 (6 months)

Led a five-engineer squad on business-owner tooling, running technical design and sprint scoping while staying hands-on across React front end and Python/Node.js services. Rebuilt a legacy server-rendered surface as a React and TypeScript application, cutting p95 page load by ~45%.

Yelp logoYE

Software Engineer

Aug 2017 - Jan 2021 (3 years 5 months)

Built and maintained Python microservices serving business and review data at millions of requests per day, backed by MySQL and Redis. Developed consumer-facing search and business-page features in React and JavaScript, and tuned Elasticsearch index mappings to cut p99 query latency by ~30%.

Yelp logoYE

Backend Developer Intern

May 2017 - Aug 2017 (3 months)

Built internal Python tooling and scheduled batch jobs for data cleanup and reporting against MySQL. Added REST endpoints in Python and Java plus test coverage to an existing service.

Education

Degrees, certifications, and relevant coursework

University of Illinois Urbana-Champaign logoUU

University of Illinois Urbana-Champaign

Bachelor of Science, Computer Science

2012 - 2016

Bachelor of Science in Computer Science from the University of Illinois Urbana-Champaign, completed in April 2016.

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