Gunar Gessner
Chief Product Officer at Satoshi Energy
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolGunar Gessner is a London-based Chief Product Officer and seasoned software engineer with 12 years of experience designing high-availability, extensible digital products across cloud, serverless, and distributed systems. He blends hands-on engineering (Clojure, JavaScript, React, Node.js) with product leadership, having launched revenue-generating coordination software and now connecting renewable energy assets with bitcoin miners at Satoshi Energy. As a founder and consultant he has repeatedly moved teams from legacy to modern stacks—introducing FP, async/await and GraphQL—and built search and ML-backed automation that measurably improved operator efficiency. An active contributor to open-source tooling for crypto exchanges, he added OCO trade and dust transfer support to a popular Node Binance API client, showing practical expertise in API and websocket integrations. Known for Clean Code, SOLID principles and Outside-In TDD, he combines technical rigor with clear cross-functional communication between highly technical and creative stakeholders.
11 years of coding experience
11 years of employment as a software developer
Bachelor of Science (BSc), Electrical Engineering, Best student award, Bachelor of Science (BSc), Electrical Engineering, Best student award at Regional University of BlumenauRotary Youth Exchange, German Language and Culture, 11, Rotary Youth Exchange, German Language and Culture, 11 at Immanuel Kant Gymnasium
Italian, Spanish, English, Portuguese, German
Stackoverflow
2,511reputation
934kreached
42answers
3questions
firebase
top-5%
lodash
top-5%
google-cloud-firestore
top-5%
Github Skills (24)
asynchronous10
javascript10
api-design10
async10
binance10
api10
nodejs10
websocket9
google-cloud-firestore9
websockets-client9
client-websocket9
websocket-client9
firebase9
lodash9
crypto8
Programming languages (28)
Github contributions (5)
ccxt/node-binance-api
Sep 2019 - May 2021
Node Binance API is an asynchronous node.js library for the Binance API designed to be easy to use.
Role in this project:
Back-end Developer / API Developer
Back-end Developer / API DeveloperContributions:6 commits, 7 PRs, 13 comments in 1 year 8 months
Contributions summary:Gunar contributed to the `node-binance-api` library by implementing new features related to Binance API functionalities. They introduced support for OCO trades, including API calls and websocket event handling, and added functionality for dust transfers and asset dividend records. Additionally, the user refactored the codebase by deprecating an existing API endpoint and migrating to the new `sapi` endpoints for several API calls.
apimarket-makerjs-libraryasynchronousbybit
gunar/gunargessner.com
Dec 2016 - Jul 2019
Contributions:111 pushes, 4 branches in 2 years 7 months
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