Johann Haeger is a tech lead with 15 years of experience building and guiding interdisciplinary engineering teams across enterprise and B2B SaaS products from Nuremberg, Germany. He blends hands-on back-end expertise—evidenced by contributions to the Project Wonder ERExtensions and Derby sequence support—with product-minded leadership in cloud KYC services, internal component frameworks, and approval workflow SaaS. Comfortable across Java, WebObjects, TypeScript/Angular and various scripting and DevOps tools, he focuses on the big picture while improving developer experience and SSDLC practices. His career includes founding a university spin‑off and translating research in graph-based design languages into practical tooling, reflecting a mix of academic rigor and entrepreneurial drive.
15 years of coding experience
17 years of employment as a software developer
Diplom-Ingenieur Luft- und Raumfahrttechnik Aeronautik und Astronautik/Raumfahrttechnik, Diplom-Ingenieur Luft- und Raumfahrttechnik Aeronautik und Astronautik/Raumfahrttechnik at University of Stuttgart
Contributions:3 releases, 1221 commits, 291 PRs in 11 years 5 months
Contributions summary:Johann appears to be focused on back-end development tasks within the Wonder project, with a concentration on the ERExtensions framework. Their commits involve both bug fixes and feature enhancements, specifically addressing issues in handling user agent versions, managing application initialization, and correcting data handling for image/blob types. They also contributed code to support sequence generation for the Derby database.
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.
Request Free Trial
Johann Haeger - Tech Lead at BNP Paribas Personal Investors