C++ Software Engineer - Front Office Trading

Client Server Ltd.; Greater London; Hybrid; GBP 100,000 - 125,000; Full time

Benefits offered by this job

Pension

Life Assurance

Healthcare

Work from home 1 day per week

Employee assistance

Job summary

Client Server Ltd. is seeking a C++ Software Engineer for Front Office trading in London. You will focus on backend development for a core equity trading system, with ownership from design to delivery.

The role requires strong C++ backend experience, trading environment familiarity, and excellent communication to work with traders and stakeholders. The position offers a hybrid work model with occasional WFH and competitive compensation.

Qualifications

• Strong C++ backend development experience.
• Experience working with traders in Front Office trading environments.
• Excellent communication and stakeholder management skills.
• Solid CS fundamentals: OOP, design patterns, data structures.

Responsibilities

• Develop, extend and maintain a core equity trading system backend.
• Redevelop and customise components to meet business needs.
• Share ownership from design through delivery in collaboration with traders.
• Ensure low-latency, high‑throughput performance for data-intensive workloads.

Skills

C++ backend

Front Office trading experience

Communication

CS fundamentals

Education

Bachelor's degree in Computer Science or STEM

Job description

C++ Software Engineer - Front Office Trading

London, Greater London | £100k - £125k per year

C++ Software Engineer / Developer London to £125k

Are you a backend focussed C++ Software Engineer with Front Office trading systems experience?

You could be progressing your career in a senior, hands‑on C++ Software Engineer role at the Investment Management arm of a global bank.

As a C++ Software Engineer you'll focus on the redevelopment and customisation of a core equity trading system for the EMEA market.

You'll work primarily on the backend using C++17 / C++20 on Linux, building and enhancing large, complex, data intensive systems. There is an element of low‑latency development, but the role also involves solving challenging problems around high‑volume data and performance at scale.

This is a genuinely Front Office role, giving you direct exposure to traders and ownership of projects from initial design through to delivery. You'll understand trading requirements, make technical decisions and build robust solutions that have a direct impact on the desk.

Location:

You'll be based in the London, City office with flexibility to work from home once a week.

About you:

• You have strong C++ backend development experience
• You have experience of working with traders in Front Office trading environments
• You have excellent communication and stakeholder management skills
• You have a strong knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures
• You're degree educated in Computer Science or similar STEM disciplines

What's in it for you:

• Salary to £125k + bonus
• Pension, Life Assurance
• One day work from home per week
• Healthcare and access to Peppy Healthcare services that support fertility, pregnancy and menopause
• Employee Assistance Programme
• Retail discounts and more
• Continuous training and career progression opportunities