Senior C++ Developer | HFT Trading Systems

Selby Jennings; Greater London; Vor Ort; GBP 120.000 - 180.000; Vollzeit

Zusammenfassung

Selby Jennings's client, a leading global investment firm, is seeking highly skilled C++ engineers for its systematic technology group in London. You will design and optimise ultra-low latency trading components, develop exchange connectivity and OMS capabilities, and work with researchers, PMs, and traders to deliver robust production systems.

The role demands expert C++ (C++20/23), strong knowledge of data structures and distributed systems, and experience with modern languages such as Python

Qualifikationen

• Strong grounding in algorithms and data structures.
• Expert-level C++ (C++20/23) with Python or Rust experience.
• Proven experience building low-latency, high-throughput systems in production trading.
• Solid networking (TCP/UDP, multicast), Linux systems programming.
• Experience with testing frameworks and CI/CD pipelines.
• Strong communication in a fast-paced, distributed team.

Aufgaben

• Design, build, and optimise low latency trading components and infrastructure.
• Develop exchange connectivity and OMS features including order routing and risk controls.
• Profile and tune performance for ultra-low latency and high throughput.
• Collaborate with researchers, PMs, traders and engineers to deliver production-ready solutions.
• Maintain high availability and participate in on-call support.
• Evolve the platform by evaluating new technologies and best practices.

Kenntnisse

C++ (modern)

Python

Low latency

Algorithms

Distributed systems

Linux systems

Networking

CI/CD

Team communication

Rust

Tools

Kubernetes

Docker

Jobbeschreibung

Our client is a leading global investment firm with a strong focus on systematic strategies, operating at scale across multiple markets. Their technology function sits at the core of the business, partnering closely with researchers and portfolio managers to deliver cutting-edge trading infrastructure. As they continue to invest heavily in their platform, they are looking to bring in highly skilled C++ engineers to join their systematic technology group.

This team is focused on building next-generation low latency, high availability research and trading systems, supporting both live trading and strategy development.

Key Responsibilities

• Design & Development: Architect, build, and optimise low latency trading components and supporting infrastructure, with a strong emphasis on performance, reliability, and scalability.
• Market Access: Develop and maintain exchange connectivity across global venues. Work on order management systems (OMS), including order routing, risk controls, and real-time state handling.
• Performance Tuning: Profile, benchmark, and continually refine systems to achieve ultra-low latency and high throughput.
• Collaboration: Partner closely with quantitative researchers, systematic PMs, traders, and other engineers to deliver robust, production-ready solutions.
• Reliability: Maintain high availability and resilience across trading systems, including involvement in on-call support where required.
• Greenfield build out: Contribute to the evolution of the platform by evaluating new technologies and implementing best practices to keep the stack competitive.

Required Skills & Experience

• Strong grounding in algorithms, data structures, distributed systems, and software design principles.
• Expert-level C++ (modern standards such as C++20/23), alongside experience with Python and/or other modern languages (e.g. Rust).
• Proven experience building and optimising low latency, high throughput systems within a production trading environment.
• Solid understanding of networking (TCP/UDP, multicast), Linux systems programming, and performance profiling tools.
• Familiarity with testing frameworks, CI/CD pipelines, and approaches for designing robust, fault-tolerant systems.
• Strong communication skills, with the ability to operate effectively in a fast-paced, globally distributed team.

Preferred Qualifications

• Background working on systematic or algorithmic trading systems within a hedge fund, proprietary trading firm, or investment bank.
• Exposure to hardware acceleration concepts (FPGA, kernel bypass, RDMA) and ultra-low latency networking stacks.
• Experience with cloud-native tooling and containerisation (e.g. Kubernetes, Docker) in hybrid environments.