Quantitative Developer/Trading Systems Engineer, Systematic Macro

Millennium Management · London

Please send resume submissions to QuantTalentEUR@mlp.com and reference REQ- 30156 in the subject line.

Location: London

Role Overview
A collaborative and entrepreneurial systematic investment team is seeking an experienced Quantitative Trading Systems Engineer to join its Systematic Macro trading team. This role focuses on building the C++ trading systems that underpin live systematic trading across global markets. Working closely with
the Senior Portfolio Manager, you will build and maintain the pod’s low-latency trading infrastructure across Futures, FX, and Fixed Income.
The successful candidate will join the systematic macro pod to build the real-time, performance-critical C++ infrastructure that runs the team’s trading — from the production alpha infrastructure through to execution. The role also focuses on production integration, deployment, monitoring, and live trading
support, and on liaising with central technology teams to leverage the firm’s existing data and execution services.

Principal Responsibilities

Build the team’s C++ latency-sensitive trading systems from market data ingestion to order execution
Productionise performance-critical signal computation within the trading systems
Build the supporting research infrastructure, including replay and data management
Support execution-related workflows across systematic strategies in Futures, FX, and Fixed Income
Specify the team’s performance and infrastructure requirements to central technology teams and work with them to deliver
Partner with broader technology teams to make effective use of the firm’s shared platforms and

services — execution, risk, portfolio management, data, and monitoring
• Implement and maintain team-level trading controls and support live production processes, while ensuring appropriate integration with the firm’s broader trading control framework

Preferred Technical Skills & Experience

5+ years building production systems in an electronic trading environment in futures, FX, and/or fixed income products
Strong C++ in a performance-critical, low-latency context (primary language for this role)
Experience building production trading systems and market-data/order-entry components
Deep understanding of concurrent, real-time systems design
Strong software engineering fundamentals, including testing, version control, and code quality
Strong Linux development experience
Familiarity with monitoring, controls, and production support in a front-office setting is advantageous
Experience working with shared internal services, APIs, or established platform infrastructure is highly valuable

Highly Valued Experience

Experience in low-latency execution or algorithmic trading systems development
Understanding of systematic trading strategies and front-office trading workflows
Experience supporting live trading processes, production controls, and operational robustness in systematic trading
Experience working within a larger institutional technology environment and integrating with shared internal platforms

Qualifications
• Bachelor’s degree required; Master’s or PhD preferred in Computer Science, Engineering, Physics, Mathematics, Statistics, or a related quantitative discipline

Excellent problem-solving ability and attention to detail
Strong ownership and ability to work independently
Clear communicator with a collaborative approach
Comfortable operating in a fast-paced, production-facing environment
Calm and effective when responding to issues during trading hours

Target Start Date: As soon as possible

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