Johanna Fuchs

S

Senior Backend Engineer at Zephyr Commerce · Redis, REST

Zephyr Commerce
Munich, Germany · CET (UTC+1)
9+ years experience
Charles University
English, German
AdvisingOpen to work
Messaging unavailable

Overview

Senior Backend Engineer at Zephyr Commerce, focused on API platforms. Built the experimentation framework 9 product teams use to ship changes safely.

Good reasons to reach out
  • Roles in API platforms
  • Advice on API platforms
  • Speaking or podcast invitations
Please don't message about
  • Recruiters for roles outside my stack
  • Crypto token projects
  • SEO and link-building offers

Replies between meetings, usually same day

Skills
rate limitingBurp SuitePostgreSQLRedisOpenAPIREST
AdvisingOpen to advising
closes in 3 months

Office hours for students choosing a first job: API platforms and Burp Suite

Topics
API platforms, Redis, OpenAPI
Format
Formal advisor role
Terms
Equity
Capacity
One advisory role at a time
Best for
Seed to Series A teams

9 years of API platforms. Small equity or paid hours - flexible.

Munich, Germany · remote OKpostgresqlburp suiteredis
Open
Open to workLooking for a role
closes in 3 months

Lead Backend Engineer roles in edtech - Munich or remote

Target roles
Lead Backend Engineer
Level
Senior
Industries
B2B SaaS, AI infrastructure
Work mode
On-site
Available
90 days notice
Work authorization
Authorized to work in Germany
What I'm looking for
Early-stage company (seed) where API platforms is core to the product.
Not interested in
Agencies and outsourcing firms

9 years in API platforms. Strongest at PostgreSQL and REST. Available immediately.

Munich, Germanypostgresqlrate limitingopenapi
Open

Experience

  1. Senior Backend Engineer
    Mar 2024 - Present
    Zephyr Commerce · 2 yr 7 mo · Full-time · Munich, Germany
    • Led the migration of 17 services to rate limiting.
    • Brought on-call pages for public API down from 29 a week to 3.
    • Grew the public API team from 5 to 26 engineers.
  2. Backend Engineer
    Jan 2021 - Mar 2024
    TotalEnergies · 3 yr 2 mo · Full-time · Munich, Germany
    • Moved 71% of public API traffic off a legacy monolith without a customer-facing incident.
    • Shipped a rewrite that took build times from 29 minutes to under 4.
  3. Backend Engineer
    Sep 2019 - Jan 2021
    H&M Group · 1 yr 4 mo · Full-time · Munich, Germany
    • Wrote the rate limiting service that now handles 82 million requests a day.
    • Brought on-call pages for public API down from 19 a week to 4.
  4. Backend Engineer
    Oct 2017 - Sep 2019
    Philips · 1 yr 11 mo · Full-time · Munich, Germany
    • Wrote the PostgreSQL service that now handles 88 million requests a day.
    • Shipped 29 launches on the public API team without a rollback.

References

No references yet.

Education

  1. Charles University
    MSc, Computer Science
    2019 - 2021
  2. University of Amsterdam
    BSc, Computer Science
    2014 - 2017

Details

Compensation expectations
What they are targeting for their next role.
Visible to connections
Direct contact details
Direct email and a scheduling link.
Visible to connections