Tim Lehmann

Overview

9 years in software engineering, the last 2 at Maersk, where I work on the public API team. Moved 84% of public API traffic off a legacy monolith without a customer-facing incident.

Travels often; replies within 48 hours

Experience

1. Senior Backend Engineer

   Dec 2024 - Present
   Maersk · 1 yr 10 mo · Full-time · Berlin, Germany
   • Built the experimentation framework 20 product teams use to ship changes safely.
   • Shipped 11 launches on the public API team without a rollback.
   • Cut p99 latency on the public API services from 578ms to 48ms.
2. Backend Engineer

   Feb 2023 - Dec 2024
   Personio · 1 yr 10 mo · Full-time · Berlin, Germany
   • Shipped a rewrite that took build times from 25 minutes to under 2.
   • Shipped 25 launches on the public API team without a rollback.
3. Backend Engineer

   Feb 2021 - Feb 2023
   Criteo · 2 yr · Full-time · Berlin, Germany
   • Moved 82% of public API traffic off a legacy monolith without a customer-facing incident.
   • Brought on-call pages for public API down from 24 a week to 4.
4. Backend Engineer

   Nov 2017 - Feb 2021
   ING · 3 yr 3 mo · Full-time · Berlin, Germany
   • Cut p99 latency on the public API services from 530ms to 151ms.
   • Brought on-call pages for public API down from 14 a week to 1.

No references yet.

Education

1. Bocconi University

   BSc, Computer Engineering
   2014 - 2017