Johannes Mentz
Senior Software Engineer at MEDLINQ Softwaresysteme GmbH
Hamburg, Germany
Summary
👤
Senior🎓
Top SchoolJohannes Mentz is a Senior Software Engineer based in Hamburg with 13–14 years of production experience building and evolving web platforms, especially in Ruby on Rails and microservice architectures. He has driven backend ownership, mentorship, and architectural work across industries—from ad tech at New Work SE (Xing) where he helped extract Go/gRPC microservices and built ad-tracking infrastructure, to fintech and real estate platforms integrating SCHUFA and payment services. Known for improving operational quality, he has led deployment, performance and security efforts as well as onboarding and mentoring junior engineers. Johannes combines pragmatic full‑stack delivery with a familiarity for distributed systems (Kafka, gRPC) and a track record of shipping business-critical integrations and migration projects. An engineer who bridges product and infra, he brings practical security thinking and measurable reliability improvements to long-lived codebases.
13 years of coding experience
13 years of employment as a software developer
Diplom-Ingenieur, Electrical Engineering, canceled, Diplom-Ingenieur, Electrical Engineering, canceled at Technische Universität BerlinFachinformatiker Fachrichtung Anwendungsentwicklung, 1,8, Fachinformatiker Fachrichtung Anwendungsentwicklung, 1,8 at moviepilot GmbH
English, German, French, Swedish
Stackoverflow
26reputation
397reached
2answers
0questions
Github Skills (9)
ruby8
rubocop7
rspec6
refactoring6
generic-programming6
ruby-on-rails6
xml1
rails1
ws-security1
Programming languages (3)
Github contributions (5)
jmentz/datasciencecoursera
Jul 2016 - Jul 2016
Contributions:1 push, 1 branch in 1 day
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