Johann Emrich
Freelance Interim Chief Technology Officer at HERMONE
Potsdam, Brandenburg, Germany
Summary
🤩
Rockstar🎓
Top SchoolJohann Emrich is a seasoned freelance Interim CTO and full-stack engineer with 11 years of professional experience and over 8 years focused on backend, frontend and DevOps—especially AWS. He blends hands-on development in Node.js, Go, TypeScript and React with pragmatic cloud architecture to deliver scalable consumer and product-focused solutions, most recently for a hormone cycle awareness app. Johann runs his own consultancy, Hinterland software, pairing bespoke web design with robust DevOps practices, and has production experience from roles at Contentful and MYCS. Organized, creative and outcome-driven, he bridges product needs and engineering delivery while keeping implementations lean and maintainable. Unusually, his background also includes professional photography and paramedic training, giving him a strong eye for UX and calmness under pressure. Based in Potsdam, he’s open to interim leadership or hands-on engineering engagements that require both strategy and execution.
11 years of coding experience
3 years of employment as a software developer
Bachelor of Science - BS Media informatics, Bachelor of Science - BS Media informatics at Berlin University of Applied Sciences Berlin (BHT)Photography journeyman Photography, Photography journeyman Photography at adP Photostudios GmbHAbitur (equivalent to A-levels), Abitur (equivalent to A-levels) at Baltic Gesamtschule / Johanneum zu Lübeck, LübeckTraining rescue paramedic Emergency Medical Technology/Technician (EMT Paramedic), Training rescue paramedic Emergency Medical Technology/Technician (EMT Paramedic) at ASB Hamburg, Hamburg
German, English, Spanish
Stackoverflow
37reputation
848reached
0answers
1question
Github Skills (72)
command-line-interface10
ruby10
security10
google-sheets10
api10
sdk10
gatsby10
crud10
cli10
json10
tvos10
gatsbyjs10
chroot10
homebrew10
contentful10
Programming languages (10)
Github contributions (5)
HINTERLAND-software/lambda.billing-api
Aug 2020 - May 2025
Contributions:34 PRs, 127 pushes, 14 branches in 4 years 10 months
kanbanflowdebitoorinvoicesbillinglambda
jroehl/cv-gen
Jan 2020 - Oct 2023
A CLI and web interface to dynamically generate a CV PDF based on values stored in JSON format
Contributions:4 reviews, 13 PRs, 53 pushes in 3 years 9 months
storedpdfweb-interfacereact-pdfjson-format
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