Tuomas Koponen
Senior Software Engineer at Ketryx
Helsinki, Finland
Summary
👤
Senior🎓
Top SchoolTuomas Koponen is a senior software engineer based in Helsinki with eight years of professional experience building full-stack web, blockchain, and AI-enabled products. He combines an M.Sc. in Software Engineering with hands-on delivery across startups and product companies, from co-founding a mobile dining app to engineering scalable frontends and backend systems for Streamr and Silta AI. Tuomas has designed agentic workflows and LangChain-based RAG pipelines that reduce manual review effort and improve LLM reliability, while also integrating smart contracts and decentralized data tooling. Comfortable across TypeScript/React, Node.js, Prisma, and vector stores like Chroma and Pinecone, he excels at turning complex domain problems into simple, automated solutions. Known for shipping pragmatic systems and tooling, he brings both entrepreneurial grit and deep product engineering discipline to regulated SaaS and AI-driven workflows.
8 years of coding experience
18 years of employment as a software developer
Master of Science Software Engineering Hypermedia, Master of Science Software Engineering Hypermedia at Tampere University of Technology 1965-2018Varkauden lukio
Finnish, Swedish, English, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (26)
odk10
frontend10
streamr10
streaming10
peer-to-peer9
ethereum-contract8
stream8
pubsub8
testing7
webrtc7
revenue-sharing7
monorepo7
react6
thegraph6
backend5
Programming languages (4)
Github contributions (5)
streamr-dev/network-explorer
Aug 2020 - Oct 2022
Streamr Network Explorer
Contributions:47 reviews, 143 commits, 62 PRs in 2 years 2 months
explorerstreamingwebrtcstreamr
oopee/Arbitrager
Jan 2018 - Feb 2018
Contributions:9 pushes in 1 month
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