C++ Developer

Noir; Greater London; Hybrid; GBP 90,000 - 180,000; Full time

Job summary

Noir is looking for a Trading Algorithm Strategist to join its global fintech team in London. You will design and optimise high-performance algorithmic execution for cash equities in a fast-paced, low-latency environment.

You will work on Best Execution, Smart Order Routing and related systems, collaborating with quantitative analysts and developers to deliver robust solutions. Hybrid London work model and sponsorship not provided.

Qualifications

• Strong C++ programming skills and proven experience in algorithmic trading or related quantitative tech environment.
• Deep understanding of financial markets and trading strategies; analytical and problem-solving skills.
• Experience with Linux, TCP/IP, UDP/Multicast, market data feeds or order execution is advantageous.

Responsibilities

• Design, develop and optimise high-performance trading algorithms for cash equities.
• Contribute to Best Execution, Smart Order Routing and Centralised systems within a low-latency, high-throughput setting.
• Translate business requirements into efficient technical solutions and mentor engineers on distributed architecture and patterns.
• Collaborate with quantitative analysts, developers and traders to improve performance and resilience.

Skills

C++

Algorithmic trading

Quantitative trading strategies

Cash equities

Low-latency systems

High-performance computing

Smart order routing

Best execution

Market data

Order execution

Linux

TCP/IP

UDP/Multicast

Python

Distributed systems

Software architecture

Performance optimisation

Job description

Trading Algorithm Strategist - Cash Equities & Algorithmic Trading - London / Hybrid

(C++, Algorithmic Trading, Quantitative Trading Strategies, Cash Equities, Low-Latency Systems, High-Performance Computing, Smart Order Routing, Best Execution, Market Data, Order Execution, Linux, TCP/IP, UDP/Multicast, Python, Distributed Systems, Software Architecture, Performance Optimisation)

An exciting opportunity has arisen for a Trading Algorithm Strategist to join a global financial technology team responsible for developing sophisticated algorithmic execution solutions across the cash equities markets.

You will sit within a highly technical Algo Development team, working on the design, development and optimisation of high-performance trading algorithms that directly influence how institutional clients execute their orders. This is a hands-on engineering position combining software development, quantitative analysis and financial markets, with a strong focus on performance, resilience and execution quality.

The role will involve developing and enhancing strategic algorithmic applications supporting capabilities such as Best Execution, Smart Order Routing (SOR), Centralised Risk Book (CRB) and Internal Order Book (IOB). You will work within a low-latency, high-throughput environment where milliseconds matter and where software architecture, performance optimisation and robust engineering are critical.

The ideal candidate will have strong C++ programming skills and proven experience within algorithmic trading, electronic execution or a closely related quantitative technology environment. You will have a deep understanding of financial markets and trading strategies, alongside strong analytical and problem-solving skills. Experience with Linux, TCP/IP, UDP/Multicast, inter-process communication, market data feeds, order execution or performance testing would be highly advantageous.

This is an opportunity to work closely with quantitative analysts, developers, business stakeholders and trading specialists, translating complex business and quantitative requirements into highly efficient technical solutions. You will also have the autonomy to propose technological improvements, contribute to architectural decisions and mentor other engineers across areas such as distributed architecture, design patterns and coding best practices.

You will join a compact, collaborative and globally distributed engineering team where hands-on technical ability is genuinely valued. If you are an experienced C++ engineer with a passion for financial markets, quantitative trading and high-performance systems, this is an opportunity to work on technology that sits directly at the heart of electronic equities execution.

Location: London / Hybrid

Applicants must have the right to work in the UK as sponsorship is not available.