Manuel Ernst
Full Stack Engineer at inovex GmbH
Nuremberg, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolManuel Ernst is a Full Stack Engineer with 14 years of hands-on experience and over two decades in web development, currently building tailored solutions at inovex after senior roles at Method Park and Musikhaus Thomann. He specializes in JavaScript and TypeScript across frontend and backend stacks, with nearly a decade of deep e-commerce experience that informs his pragmatic, performance-minded engineering. Manuel contributes to open-source tooling and has improved core performance and test quality in notable projects like loadtest and the widely-used async library, reflecting a strong focus on reliability and scalability. A regular conference and meetup speaker, he pairs technical depth with clear communication and knowledge-sharing. Based in Nuremberg, he enjoys turning complex requirements into maintainable, production-ready systems and bringing measurable performance gains to client projects. A playful side note from his GitHub handle: he blends seriousness with personality—"Ich bin nicht dein Ernst"—hinting at a pragmatic but approachable style.
14 years of coding experience
14 years of employment as a software developer
B.Sc., Information Technology, B.Sc., Information Technology at Georg-Simon-Ohm-Fachhochschule Nürnberg
English
Github Skills (21)
javascript10
performance-analytics10
performance-monitor10
async10
testing10
loadtest10
performance-measurement10
callback10
performance-analysis10
performance-tuning10
nodejs10
performance-monitoring10
load-testing10
test-automation10
mstest9
Programming languages (13)
Github contributions (5)
alexfernandez/loadtest
Aug 2013 - Dec 2015
Runs a load test on the selected URL. Fast and easy to use. Can be integrated in your own workflow using the API.
Role in this project:
Back-end Developer & Performance Engineer
Back-end Developer & Performance EngineerContributions:18 commits, 1 PR in 2 years 4 months
Contributions summary:Manuel primarily focused on improving the project's performance and refactoring code. Their contributions include rewriting core components, specifically focusing on the testserver and timing modules. They also instrumented the command-line interface using optimist to parse command line parameters, which is crucial for configuring and running load tests effectively. Furthermore, the user fixed test issues.
loadtestloadtestingnodejsperformancetesting-tools
caolan/async
Jan 2012 - Feb 2013
Async utilities for node and the browser
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits, 1 comment, 1 issue in 1 year
Contributions summary:Manuel primarily contributed to improving the test suite for the `async` library. Their commits focused on fixing existing bugs, adding new tests to cover various functionalities such as queue behavior and concurrency, and adding tests for inverted sort order. The code changes included modifications to existing test files, and adding new test cases to ensure the reliability and correctness of the `async` library's asynchronous utilities.
asyncjavascriptcallbacks
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.