Quant jobs / Millennium

Server-Side Engineer (C++) – Pre-Trade Risk Technology

A C++ and Java engineering role on a real-time system that checks order flow across hundreds of venues and blocks trades that break limits. It is moving onto sequencer-based order management buses.

What you’d work on

Our reading of the posting: what a new hire in this role would most likely spend their first months on.

Build low-latency components that catch trading errors in millions of daily orders
Integrate risk checks with new C++ order management buses
Add new controls for Asian markets
Own testing, deployment and third-line support of your code

What they ask for

Required

5+ years server-side C++ on Linux
Java server-side development
Front-office trading system design
Market knowledge across equities and fixed income
Translating business needs into software
AI tools in the development cycle

Preferred

KDB
Sequencer technologies and Aeron

Education: Not stated
Experience: 5+ years of C++ server-side development
Languages and tools: C++
Java
KDB+/q
Markets: equities, fixed-income, multi-asset

How to prepare

Build a sequenced event log and a risk check consuming it
Learn how pre-trade limits like fat-finger and position caps work
Practise low-latency C++ profiling
Read up on Aeron messaging patterns

What to study

The HFT Quant Developer roadmap sets out the stages for this kind of role, with free resources for each.

Open the roadmap

Apply

Read the full posting on Millennium’s site before applying: requirements, location and pay can change after we check them.

View the posting on Millennium’s site ↗

SelfMadeQuant wrote this summary from the employer’s public posting, last checked 6 November 2026. SelfMadeQuant isn’t affiliated with Millennium and doesn’t handle applications.