Junior C++ Engineer

Job description

This role sits within a high-performing engineering group responsible for building and supporting the core systems that underpin real-time trading activity. The successful candidate will work across the full software development lifecycle, contributing to the design, build, deployment, and optimisation of highly scalable, performance-critical applications.

Key Responsibilities

• Build, test, and enhance high-performance trading systems using C++ and Python
• Translate quantitative models and trading logic into robust production-ready software
• Develop internal tools and interfaces used directly by front-office trading teams
• Improve market data ingestion, exchange connectivity, and real-time data flows
• Contribute to distributed systems, low-latency communication, and performance tuning initiatives
• Take part in design discussions, code reviews, profiling, and CI/CD improvements
• Gain hands-on exposure to algorithmic trading infrastructure, market structure, and risk platforms

Candidate Profile

• Early-career experience demonstrated through internships, placements, or academic projects (0–2 years)
• Bachelor’s or Master’s degree in Mathematics, Physics, Engineering, or a related discipline (graduating between December 2025 and June 2026)
• Strong programming capability in C++ and Python
• Solid foundations in data structures, algorithms, and operating systems
• Comfortable working in Linux/Unix environments
• A strong focus on writing clean, efficient, and maintainable code
• Excellent analytical thinking and problem-solving ability
• Clear communicator with the ability to collaborate effectively in team environments
• Genuine interest in financial markets (prior finance experience not required)

Desirable Experience

• Exposure to distributed systems, concurrency, or network programming
• Experience working with low-latency or real-time systems
• Familiarity with trading platforms, data pipelines, or simulation tools
• Open-source contributions or personal technical projects that demonstrate initiative

Contact Ciara Clarke at Harrington Starr for a confidential discussion.

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full Time Jobs

Published at

12-01-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English