Arthur Brown

Staff Software Engineer at Alder Grid · Real-time systems · low-latency systems, WebSockets

Alder Grid

London, UK · GMT (UTC+0)

8+ years experience

University of Oxford

English

Messaging unavailable

Overview

Based in London. I work on real-time systems at Alder Grid. Cut p99 latency on the real-time services from 669ms to 171ms. Most at home with Erlang/OTP and Redis. Gardening and composting evangelist.

Good reasons to reach out

Thoughtful intros to people in my field
Second opinions on Erlang/OTP decisions
Questions about real-time systems

Please don't message about

Unpaid work or spec projects
Recruiters for roles outside my stack
Requests to fix your code for free

Answers in batches on Fridays

Skills

GoWebSocketsErlang/OTPRedislow-latency systemsElixir

Experience

Staff Software Engineer
Mar 2026 - Present
Alder Grid · 7 mo · Full-time · London, UK
- Shipped a rewrite that took build times from 38 minutes to under 3.
- Built the experimentation framework 40 product teams use to ship changes safely.
Software Engineer
Mar 2023 - Mar 2026
Sainsbury's · 3 yr · Full-time · London, UK
- Cut p99 latency on the real-time services from 311ms to 62ms.
Senior Software Engineer
Dec 2020 - Mar 2023
Sky · 2 yr 3 mo · Full-time · London, UK
- Cut p99 latency on the real-time services from 525ms to 138ms.
- Wrote the Go service that now handles 40 million requests a day.
Software Engineer
Feb 2019 - Nov 2020
Sainsbury's · 1 yr 9 mo · Full-time · London, UK
- Wrote the Elixir service that now handles 29 million requests a day.

References

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Education

University of Oxford
BA, Computer Engineering
2014 - 2017

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