Oleg Janeiko
AI Agent & Full-Stack Engineer at Freelance
Vilnius, Vilnius County, Lithuania
Summary
👤
Senior🎓
Top SchoolOleg Janeiko is an AI agent and full-stack engineer with 15+ years building scalable web platforms and production-grade AI systems for companies like Apple, Salesforce.org, and AOL. He combines deep front-end and backend expertise (TypeScript, React, Node.js) with practical AI/ML experience (LangChain, Vertex AI, vector databases) to move projects from “demo” to reliable, deployable products. A crisis-tested leader, he recruited and led a 40-person team at Nova Ukraine and architected a custom CRM that enabled distribution of $24.5M in aid and now tracks over $160M in impact. He has a track record of performance-driven engineering—optimizing ad serving for billions of requests and shipping ML initiatives end-to-end—while mentoring teams and improving operational workflows. Now freelancing from Vilnius, he focuses on building AI agents and LangChain workflows that minimize hallucinations and scale to real business value.
15 years of coding experience
15 years of employment as a software developer
Media and Cultural Studies, Media and Cultural Studies at European Humanities UniversityQuinsigamond Community College
English, Russian, Spanish, Lithuanian
Stackoverflow
73reputation
10kreached
1answer
1question
Github Skills (31)
increment6
mobile-safari6
vscode6
mobile6
vim6
vscode-extension6
ios6
twitter6
javascript6
biginteger6
keybindings5
visual-studio5
neovim5
typescript5
visual-studio-code4
Programming languages (3)
Github contributions (5)
ianeiko/ianeiko.github.io
Apr 2015 - Jun 2024
Contributions:17 pushes in 9 years 3 months
dominiek/Pulsi
Oct 2010 - Oct 2010
Contributions:33 commits in 1 day
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