Janaka Premathilaka
Sr. Full-Stack Solution Engineer At UBS And Cognizant
Zug, Zug, Switzerland
Summary
🤩
Rockstar🎓
Top SchoolStéphane Roche is a bilingual Full Stack Engineer with 11 years of experience building web, mobile, desktop and LLM-powered applications, currently focused on autonomous payment systems and agent-to-agent crypto transactions at BitGPT. He blends a Typescript-first stack (React/Next, Node) with deep blockchain expertise across Bitcoin, Liquid, Ethereum and newer ecosystems like Sui, and has shipped wallets, P2P trading tools and crypto chatbots in production. Stéphane architects cross-platform experiences using React Native, Flutter, Tauri and Electron while also operating serverless and Kubernetes-based backends with gRPC and Nginx. He builds and deploys generative AI systems using LangChain/LLamaIndex for local, cloud and decentralized inference (including Petals), and runs LLM monitoring and optimization pipelines. Beyond coding, he has a track record of developer education and tooling—authoring a widely used BitcoinJS guide and delivering technical trainings—bringing both product-minded engineering and teaching instincts to complex, secure financial systems. Based in Paraguay, he pairs a pragmatic, multidisciplinary background (web dev to audiovisual archiving) with a knack for turning cryptoeconomic concepts into usable, resilient applications.
11 years of coding experience
20 years of employment as a software developer
Unix/Linux Fundamentals,Networks & Systems Administration, Unix/Linux, Certified, Unix/Linux Fundamentals,Networks & Systems Administration, Unix/Linux, Certified at University of ColomboSCJP,SCBCD,SCEA1,SCWCD(69), Java and JEE technologies, SCJP,SCBCD,SCEA1,SCWCD(69), Java and JEE technologies at Sun JavaACS Examinataions in IT, IT, Pass, ACS Examinataions in IT, IT, Pass at Australian computer societyBSc, Computer Science,Statistics,Mathematics, Lower second-class honours, BSc, Computer Science,Statistics,Mathematics, Lower second-class honours at University of Sri Jayewardenepura
English, Dutch, Sinhalese, French, German
Stackoverflow
131reputation
18kreached
5answers
1question
Github Skills (200)
ui-components10
dialog10
cryptocurrency10
chat10
nano10
nodejs10
zsh10
popup10
desktop10
cryptography10
daemon10
frontend10
windows10
bash10
docker-desktop10
Programming languages (24)
Github contributions (5)
Janaka-Steph/tdex-app
Jun 2021 - Jan 2022
📱 Mobile app for making trades on TDEX
Contributions:247 pushes, 200 branches in 7 months
mobile-apptrades
bitcoin-studio/Bitcoin-Programming-with-BitcoinJS
Nov 2018 - Oct 2022
Bitcoin Programming with BitcoinJS, Bitcoin Core and LND
Contributions:169 commits, 16 PRs, 160 pushes in 3 years 11 months
lndbase58javascriptbitcoinjsbitcoinjs-lib
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