Lauritz Leifermann
Software Engineer at PetsApp
Essen, North Rhine-Westphalia, Germany
Summary
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SeniorLauritz Leifermann is a pragmatic software engineer and co-founder with nine years of experience building and maintaining production products across startups and scale-ups. He blends hands-on engineering with product-minded thinking, focusing on scalable, well-tested systems and flexible team practices that empower high-output individuals. His recent roles include co-founding Qourses and product engineering at Spherity, and he currently contributes to PetsApp, showing a strong track record in both founding and integrating into engineering teams. Passionate about crypto, self-sovereign identity, and sustainable energy/EV topics, he brings domain curiosity to technical problem solving. Known for treating "agile" as a flexible mindset rather than ceremony, he emphasizes ownership across the full stack. Based in Essen, Germany, Lauritz pairs entrepreneurial drive with pragmatic DevOps and product engineering experience.
9 years of coding experience
5 years of employment as a software developer
Github Skills (165)
messenger10
telegram10
gmail10
icloud10
smart-contracts10
whatsapp10
solidity10
linux10
credit-card10
outlook10
financial10
hipchat10
inbox10
facebook-workplace10
finance10
Programming languages (11)
Github contributions (5)
Open-Credentialing-Initiative/api-specifications
Nov 2021 - Apr 2022
Repository including all OCI related api specifications in OpenAPI format - https://open-credentialing-initiative.github.io/api-specifications/
Contributions:1 release, 6 PRs, 24 pushes in 5 months
apiinitiativespecificationsopenapi3openapi
spherity/did-extension-ethr
Feb 2023 - Oct 2023
An extension to the did-ethr-provider with did:ethr specific methods
Contributions:1 release, 2 PRs, 2 pushes in 8 months
changeownerethrpluginveramo
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