Real-Time Trading C++ Engineer – Low-Latency Systems

OpenTalent; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

OpenTalent is seeking a C++ developer to join its fintech platform in London, focusing on high-throughput, low-latency code that supports multiple markets. You will collaborate with Product, Infrastructure and QA teams to deliver robust software for a sophisticated trading environment.

The role requires strong C++ experience (C++11+), Linux proficiency, and a solid grasp of networking, Python, Git, and SQL, with a passion for solving complex market-tech challenges.

Qualifications

• Experience writing C++ (C++11 or later).
• Understanding of core networking concepts (TCP, UDP, multicast) and why they matter in high-throughput systems.
• Comfortable working on Linux.
• Python, Git, and SQL.
• Analytical mindset with curiosity about financial markets and exchange technology.
• Drive to solve complex problems alongside a talented team.

Responsibilities

• Codes, tests, integrates, and documents software.
• Apply principles and techniques of computer science, engineering, and mathematical analysis to the development of complex products.
• Apply and champion the appropriate standards, processes, procedures, and tools throughout the system development life cycle to support the generation of technical engineering products.
• Keep abreast of technology trends and champion new ideas and process improvements.

Skills

C++

Networking concepts

Linux

Python

Git

SQL

Analytical mindset

Problem solving

Tools

Boost libraries

QuestDB

Dolt

FIX/SBE protocols

Job description

OpenTalent is seeking a C++ developer to join its fintech platform in London, focusing on high-throughput, low-latency code that supports multiple markets. You will collaborate with Product, Infrastructure and QA teams to deliver robust software for a sophisticated trading environment.

The role requires strong C++ experience (C++11+), Linux proficiency, and a solid grasp of networking, Python, Git, and SQL, with a passion for solving complex market-tech challenges.