Senior C++ Engineer - Remote, Low-Latency Trading

Reactive Markets; United Kingdom; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Private health insurance

Pension

Life insurance

Dental cashback

Cycle to work

Socials and offsites

Job summary

Reactive Markets is seeking a Senior C++ Software Engineer to drive the Switchboard trading platform architecture. You will work on pricing engines, gateways, and market-data systems, owning the full lifecycle from design through production support.

You will mentor engineers, review designs, and push for high quality, reliable, scalable systems while collaborating across teams in a remote-friendly environment.

Qualifications

• 5+ years of strong C++ and Linux systems programming experience.
• Proven ability to optimize latency-sensitive, high-throughput systems.
• Experience with distributed architectures and network protocols (TCP/UDP, FIX).

Responsibilities

• Shape the technical direction of Switchboard trading platform.
• Build, test, deploy, and operate production systems.

Skills

C++

Linux

Latency optimization

Distributed systems

Go

Python

Git

Shell scripting

Networking (TCP/UDP)

FIX protocol

Tools

Go

Python

Git

Job description

Reactive Markets is seeking a Senior C++ Software Engineer to drive the Switchboard trading platform architecture. You will work on pricing engines, gateways, and market-data systems, owning the full lifecycle from design through production support.

You will mentor engineers, review designs, and push for high quality, reliable, scalable systems while collaborating across teams in a remote-friendly environment.