Low-Latency Quant C++ Developer for Real-Time Trading

QNT Partners; England; On-site; GBP 90,000 - 150,000; Full time

Job summary

QNT Partners is seeking a Quant Developer in the UK to turn cutting-edge trading ideas into fast production C++ that runs live in markets. You will own the tick-to-trade path, profile relentlessly, and fix slow paths while partnering with traders and researchers.

The role demands 5+ years in C++17+ within latency-sensitive environments, multithreading expertise, and cloud tooling in AWS. You will work near core engineering and trading teams to keep the code at market speed.

Qualifications

• 5+ years of real C++ experience in latency-sensitive environments.
• Strong knowledge of multithreading and lock-free structures.
• Experience in profiling and optimizing performance.
• Familiar with CI/CD, instrumentation, and observability tooling.
• Network programming skills (TCP/UDP, multicast).
• Cloud infra experience (AWS) for research or backtesting.
• Scripting in Python or Bash for tooling.
• Experience near financial markets or algo trading preferred.

Responsibilities

• Turn strategies from researchers into fast, production-grade C++.
• Own the tick-to-trade path and optimize nanosecond-scale latency.
• Profile relentlessly to identify and fix slow paths.
• Bridge ideas from quant team to live, market-facing code.
• Maintain observability for live strategies (Grafana, Prometheus).
• Collaborate closely with traders and core engineers.

Skills

C++17+

Multithreading

Concurrency

Profiling

CI/CD

Instrumentation

Networking

AWS

Python Bash

Observability

Tools

Grafana

Prometheus

Job description

QNT Partners is seeking a Quant Developer in the UK to turn cutting-edge trading ideas into fast production C++ that runs live in markets. You will own the tick-to-trade path, profile relentlessly, and fix slow paths while partnering with traders and researchers.

The role demands 5+ years in C++17+ within latency-sensitive environments, multithreading expertise, and cloud tooling in AWS. You will work near core engineering and trading teams to keep the code at market speed.