Serhii Onenko
Chief Technology Officer at MessageWorks
Puerto de la Cruz, Spain
Summary
👤
Senior🎓
Top SchoolSerhii Onenko is a seasoned CTO and full‑stack engineer with 11 years of experience building production web and AI-enabled features across startups and mid‑size companies. Currently leading technology at MessageWorks, he combines hands‑on architecture and delivery practices with an "AI‑native" workflow—using agentic coding patterns and LLM research to drive product differentiation. He has a track record of modernizing legacy JavaScript stacks with TypeScript, unifying front/back logic into single sources of truth, and shipping interactive, chart‑rich data visualizations that became sales drivers. As a pragmatic architect and mentor, he instituted code quality, testing, and lightweight Agile rituals to improve team velocity and maintainability. His background spans Scala backends, complex plugin architectures, and embedded/Raspberry Pi projects, reflecting a rare mix of systems, frontend, and infrastructure experience. Based in Puerto de la Cruz, Spain, he brings entrepreneurial rigor from co‑founding projects and a knack for turning research on LLMs into usable product features.
11 years of coding experience
14 years of employment as a software developer
Master's degree Banking and Financial Support Services, Master's degree Banking and Financial Support Services at VMURL UKRAINEBachelor's degree Economics, Bachelor's degree Economics at KPEK NAU
Ukrainian, English, Spanish
Stackoverflow
422reputation
78kreached
2answers
2questions
Github Skills (83)
elasticsearch10
game-development10
visualizations10
game-engine10
observability10
elastic10
open-source10
kibana10
godot9
lift9
cli9
shell9
python9
command-line9
react9
Programming languages (8)
Github contributions (5)
sonenko/logical-parser
Sep 2015 - Jun 2016
Contributions:97 commits, 67 pushes, 1 branch in 8 months
sonenko/scala-file
Apr 2015 - Oct 2016
Contributions:2 commits, 6 pushes, 1 branch in 1 year 6 months
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