Nikolaj Leischner
Staff Software Engineer at UNICEPTA
Cologne, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolNikolaj Leischner is a language-agnostic staff software engineer with 13 years of experience building and operating cloud-native services and media platforms from Cologne, Germany. He blends hands-on engineering across TypeScript, Python, Kotlin, Scala and Java with systems work on GCP, Elasticsearch, Kubernetes and CI/CD, often rescuing legacy codebases and fixing thorny production bugs. As an early-career C++ systems developer turned backend and full-stack engineer, he pairs low-level performance awareness with modern service architecture and front-end experience. He also invests in growing teams and mentoring engineers, balancing technical leadership with sustainable, healthy practices. Though currently not looking for opportunities, he’s known for enjoying cleanup projects and teaching others how to ship cleaner, more maintainable software.
12 years of coding experience
10 years of employment as a software developer
Dipl.-Inform., Computer Science, Marketing, Entrepreneurship, 1.6, Dipl.-Inform., Computer Science, Marketing, Entrepreneurship, 1.6 at Universität Karlsruhe (TH)
English, German
Stackoverflow
86reputation
11kreached
3answers
0questions
Github Skills (74)
benchmark10
extensible8
wysiwyg8
lexical8
rich-text-editor8
contenteditable8
accessibility8
reliability8
draft-js8
selenium-webdriver8
firebase7
javascript7
text-editor7
mobx7
redux7
Programming languages (5)
Github contributions (5)
NikolajLeischner/gpu_samplesort
Jun 2013 - Jul 2022
The GPU sorting algorithm implementation from my diploma thesis.
Contributions:4 commits, 4 PRs, 19 pushes in 9 years 3 months
cudadiplomasorting-algorithmldagpu
NikolajLeischner/ggj2017
Jan 2017 - Jan 2017
Contributions:39 pushes in 7 days
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