Summary
Torsten Mangner is a founder and principal software engineer with 15 years of hands-on experience and a 20-year history in software, known for blending development, testing, and coaching to elevate cross-functional teams. As CEO of inoxio Quality Service he designed and maintains a Ruby on Rails invoice and accounting system in production for over a decade, and he’s led backend and microservices work at DREST and OTTO, including a zero-downtime migration of 50+ services to AWS. Comfortable across polyglot stacks (Clojure, Scala, Python, Ruby) and DevOps practices—Docker, Kafka, TensorFlow—he focuses relentlessly on quality and maintainability. He’s equally at home improving test automation and instilling agile testing behaviors, which makes him a practical bridge between engineering and QA. Based in Erfurt, Germany, he’s a pragmatic generalist who quietly prefers building reliable systems and mentoring teams over chasing titles.
15 years of coding experience
21 years of employment as a software developer
Dipl.-Inf., Computer Sience, Dipl.-Inf., Computer Sience at Technische Universität Ilmenau