C++ Software Engineer

Location: St. Louis

ABOUT US:

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a commitment to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, handle risk and create jobs.

It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years.

Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.

LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG’s ticker symbol is LSEG.Our People:

People are at the heart of what we do and drive the success of our business. Our culture of connecting, creating opportunity and delivering excellence shape how we think, how we do things and how we help our people fulfil their potential.

We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and exciting experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.

We know that real personal growth cannot be achieved by simply climbing a career ladder – which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise.

As a global organisation spanning 70 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with significant careers.

Role Summary As a C++ Software Engineer, you will design, develop, and deliver high-quality software solutions that meet business needs. You will work collaboratively with cross-functional teams to build reliable, scalable, and well-tested applications, ensuring strong performance and stability. This role requires solid C++ and object-oriented programming expertise, a proactive problem-solving mindset, and a commitment to code quality through testing, reviews, and continuous improvement.

You will also contribute to system integration, support production environments, and stay adaptable to evolving technologies and market demands.

What You will be Doing:

Work with team members to identify the best solution for meeting business requirements

Deliver high quality market logic normalization code and configuration

Ensure bug free software through automated regression testing, unit tests, and code reviews

Collaborate with QA and Operations to ensure successful integration into test and production environments

What You will Bring

Experience with the full life-cycle software development experience2 years experience with C++Strong understanding of object oriented development

Superb interpersonal skills (written and oral)
Ability to collaborate in a team focused environment

Excellent analytical skills and a desire to tackle problems.

Ability to thoroughly test and debug code using test driven development

Ability to suggest/research new technologies and quickly adapt to change

Ability to work with both Technical Architects and Product Owners in order to build to specification

Preferred Skills and Experience Experience developing on Linux Exposure to Agile methodologies

Experience with automated testing

Knowledge of scripting languages Python, Unix or Powershell shell scripts desirable

Knowledge of other languages such as JavaScript, Node.js

Experience with real-time programming

Experience with debugging multi-threaded applications

Knowle…