Sean Daly

S

Senior Software Engineer at Lakemont Group · Real-time systems

Lakemont Group
London, UK · GMT (UTC+0)
3+ years experience
University of Cambridge
English
Messaging unavailable

Overview

Based in London. I work on real-time systems at Lakemont Group. Shipped 11 launches on the real-time team without a rollback. Most at home with low-latency systems and WebSockets.

Good reasons to reach out
  • Second opinions on WebSockets decisions
Please don't message about
  • Courses and coaching offers
  • Unpaid work or spec projects

Replies between meetings, usually same day

Skills
low-latency systemsWebSocketsErlang/OTPRedis

Experience

  1. Senior Software Engineer
    Dec 2025 - Present
    Lakemont Group · 10 mo · Full-time · London, UK
    • Moved 66% of real-time traffic off a legacy monolith without a customer-facing incident.
    • Wrote the Redis service that now handles 75 million requests a day.
    • Brought on-call pages for real-time down from 13 a week to 1.
  2. Software Engineer
    Oct 2023 - Dec 2025
    JPMorgan Chase · 2 yr 2 mo · Full-time · London, UK
    • Cut p99 latency on the real-time services from 767ms to 171ms.
    • Moved 61% of real-time traffic off a legacy monolith without a customer-facing incident.

Projects

Write-up: real-time systems in practice
2025

A long-form guide to real-time systems for people starting out.

Real-time systems benchmark
2024

Reproducible benchmarks comparing low-latency systems and Redis on real workloads.

References

No references yet.

Education

  1. University of Cambridge
    BA, Mathematics
    2020 - 2023

Details

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