Margo Group

C++ Developer – High Frequency Trading (HFT Systems)

London, United KingdomFull timePosted 12 days ago
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C++ Developer – High Frequency Trading (HFT Systems)

Join MARGO in the UK (London) – High Performance Trading Environments

MARGO is a tech-native consultancy delivering elite software engineering expertise to the most demanding financial markets environments.
We operate in latency-critical trading contexts where performance, determinism and predictability are core system requirements. Our consultants work in highly specialised trading environments, designing systems that interact directly with exchanges and market venues under extreme time constraints.

Business Context

You will join a High Frequency Trading / Low Latency Trading environment within one of our partners (investment banks, proprietary trading firms or market makers).
The teams design, build and operate latency-sensitive trading systems directly connected to exchanges, typically deployed in colocated environments.
These systems are characterised by:
·        Microsecond to sub-microsecond latency constraints
·        Deterministic and predictable execution paths
·        Minimal software and network overhead
·        Direct interaction with market data feeds and order gateways

Role Overview

We are looking for a C++ Software Engineer to work on latency-critical trading infrastructure.
The role is strongly engineering-driven and focuses on speed, predictability and control of execution rather than functional feature delivery.
Depending on the environment, the role may also involve interaction with C# components used outside the ultra-latency-critical execution path.

Key Responsibilities

Core HFT Engineering
·        Design, develop and optimise ultra-low latency C++ trading components
·        Work on critical execution paths for market data processing and order routing
·        Implement lock-free and wait-free algorithms
·        Optimise memory allocation, cache locality and CPU utilisation
·        Reduce jitter and tail latency

System-Level & Hardware-Aware Optimisation
·        Analyse an...