Thomas Clark

S

Senior Backend Engineer at Shell · Payments infrastructure · distributed systems, PCI DSS

Shell
London, UK · GMT (UTC+0)
5+ years experience
University of Manchester
English
Messaging unavailable

Overview

I've spent 5 years on payments infrastructure - first at Tesco, now at Shell. Shipped a rewrite that took build times from 24 minutes to under 2. Led the migration of 39 services to distributed systems. Previously at Tesco. I tinker with 3D printers.

Good reasons to reach out
  • Working sessions on Java
  • Questions about payments infrastructure
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  • Unpaid work or spec projects
  • Courses and coaching offers

Checks messages twice a week

Skills
Kafkadistributed systemsJavaPCI DSSGo

Experience

  1. Senior Backend Engineer
    May 2023 - Present
    Shell · 3 yr 5 mo · Full-time · London, UK
    • Grew the payments platform team from 4 to 37 engineers.
    • Shipped a rewrite that took build times from 30 minutes to under 3.
    • Designed the reconciliation system that matches 8 million transactions a day.
  2. Backend Engineer
    Oct 2021 - May 2023
    Tesco · 1 yr 7 mo · Full-time · London, UK
    • Wrote the distributed systems service that now handles 59 million requests a day.
    • Cut p99 latency on the payments platform services from 671ms to 168ms.

References

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Education

  1. University of Manchester
    BSc, Mathematics
    2017 - 2020

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