Christian Kellner
Staff Engineer Product-Led Growth Product-Led Sales at IBM
Dusseldorf, North Rhine-Westphalia, Germany
Summary
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SeniorChristian Kellner is a staff engineer specializing in Product-Led Growth and Product-Led Sales with 11 years of experience building scalable, revenue-driving systems. Currently at IBM, he has led teams that designed internal customer-insight platforms, licensing systems, and high-throughput messaging products that serve thousands of users and messages per second. His background spans founding-engineer work at Instana—where he implemented core licensing and business integrations—and architecting the messaging backbone at Timocom, demonstrating both hands-on implementation and strategic product thinking. Known for blending front-end and back-end expertise (React, Java) with operational rigor, he focuses on turning complex product and licensing requirements into reliable, secure systems that directly impact monetization.
11 years of coding experience
13 years of employment as a software developer
English, German
Stackoverflow
7,150reputation
738kreached
79answers
142questions
Github Skills (200)
apartment10
dialog10
component-library10
eas10
semantic-ui-react10
toast10
api10
margin10
popup10
scraper10
user-interface10
servlet10
frontend10
semantic-ui10
pagination10
Programming languages (15)
Github contributions (5)
orangecoding/heatsheet
May 2020 - Sep 2022
HeatSheet -> The Tado Metrics "cheatsheet"
Contributions:1 release, 20 commits, 6 PRs in 2 years 4 months
tadometricscheatsheet
orangecoding/fredy
Jan 2018 - Dec 2022
:heart: Fredy - [F]ind [R]eal [E]states [D]amn Eas[y] - Fredy will constantly search for new listings on sites like Immoscout or Immowelt and send new results to you, so that you can focus on more important things in life ;)
Contributions:62 releases, 11 reviews, 157 commits in 4 years 11 months
heartimmoscoutfindertelegramimmowelt
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