Thom Oman - Senior Backend Engineer at Relay Technologies

Thom Oman

Senior Backend Engineer at Relay Technologies

London, England, United Kingdom

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Summary

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Rockstar

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Thom Oman is a Senior Backend Engineer with eight years of experience building reliable, scalable payment and data systems in London, most recently on GoCardless’s Money Tracking team and now at Relay Technologies. He blends deep Ruby on Rails expertise with strong database skills—having improved concurrency, gap-lock handling and query stability in the popular statesman state-machine library. At Zappi he led user management and authentication efforts, designed a flexible permissions system, and delivered caching layers that materially improved platform performance. Comfortable shipping both greenfield services and surgical fixes in complex production systems, he often focuses on database interaction and reliability where small changes yield large operational gains. Thom holds an MMath in Mathematics from the University of Leeds and brings a pragmatic, analytical approach informed by a strong maths background. He’s the sort of engineer who prefers fixing subtle DB correctness and stability issues over flashy features, ensuring systems behave predictably at scale.

8 years of coding experience

9 years of employment as a software developer

A Level Mathematics Physics Music Further Mathematics (Self-taught: AS-only) Psychology (AS-only), A Level Mathematics Physics Music Further Mathematics (Self-taught: AS-only) Psychology (AS-only) at King Edwards VI High School

Integrated Masters (MMath) Mathematics, Integrated Masters (MMath) Mathematics at University of Leeds

English

Stackoverflow

Stats

1reputation

0reached

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Github Skills (5)

activerecord10

go10

database-design10

mysql10

testing8

Programming languages (1)

Ruby

Github contributions (5)

gocardless/statesman

Aug 2019 - May 2022

A statesmanlike state machine library.

Role in this project:

Back-end Developer

Contributions:2 releases, 20 reviews, 71 commits in 2 years 9 months

Contributions summary:Thom focused on improving the database interaction and stability of the statesman library. Their contributions involved fixing type errors, handling MySQL-specific issues related to concurrency and gap locks, and optimizing database queries. The user made multiple changes to the ActiveRecord adapter, ensuring correct behavior with the database. They also worked on version bumps and applied code style fixes.

state-managementstate-machine

thom-oman/advent_of_code

Jan 2023 - Dec 2024

Contributions:23 pushes in 1 year 11 months

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