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Hesham Qasim

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Engineering Manager at Thistle Works | ex-Spotify

Works at
Thistle Works
Location
Berlin, Germany · CET (UTC+1)
Experience
13+ years experience
Education
Bocconi University
Languages
English, German
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Overview

I've spent 14 years on API platforms - first at SAP, now at Thistle Works. Moved 69% of public API traffic off a legacy monolith without a customer-facing incident. Before that: Spotify and Allegro. Jazz piano, badly.

Good reasons to reach out
  • Questions about API platforms
  • Thoughtful intros to people in my field
  • Speaking or podcast invitations
Please don't message about
  • Requests to fix your code for free
  • Offshore staffing offers
Skills
PythonRESTPostgreSQLDjangoRedis

Experience

  1. Engineering Manager
    Jan 2023 - Present
    Thistle Works · 3 yr 10 mo · Full-time · Berlin, Germany
    • Moved 88% of public API traffic off a legacy monolith without a customer-facing incident.
    • Reduced cloud spend on public API by 37% in two quarters.
  2. Senior Backend Engineer
    Apr 2021 - Jan 2023
    Spotify · 1 yr 9 mo · Full-time · Berlin, Germany
    • Wrote the Django service that now handles 62 million requests a day.
  3. Backend Engineer
    Jul 2018 - Apr 2021
    Allegro · 2 yr 9 mo · Full-time · Berlin, Germany
    • Wrote the PostgreSQL service that now handles 23 million requests a day.
    • Cut p99 latency on the public API services from 888ms to 78ms.
  4. Backend Engineer
    Dec 2015 - Jul 2018
    Feedzai · 2 yr 7 mo · Full-time · Berlin, Germany
    • Wrote the REST service that now handles 41 million requests a day.
  5. Backend Engineer
    Apr 2014 - Dec 2015
    SAP · 1 yr 8 mo · Full-time · Berlin, Germany
    • Wrote the PostgreSQL service that now handles 78 million requests a day.

Projects

Open-source Django toolkit
2026

A small library for API platforms that 843 developers star on GitHub.

API platforms benchmark
2022

Reproducible benchmarks comparing REST and Python on real workloads.

References

No references yet.

Education

  1. Bocconi University
    BSc, Computer Engineering
    2009 - 2012

Details

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