Senior Software Engineer - St. Louis

LSEG (London Stock Exchange Group); Creve Coeur (MO); On-site; USD 80,000 - 120,000; Full time

Benefits offered by this job

Healthcare

Retirement planning

Paid volunteering days

Wellbeing initiatives

Job summary

LSEG (London Stock Exchange Group) in Creve Coeur, Missouri is seeking passionate software engineers to develop robust, enterprise-grade solutions. Candidates will work on complex problems, leveraging AI and new technologies to innovate in the financial sector.

The role requires experience in Java, Python, C++, or C#, and strong CI/CD skills within cloud environments like AWS or Azure. Join a team that encourages continuous learning and curiosity.

Qualifications

• Experience with Java, Python, C++, or C#.
• Strong CI/CD and cloud platform skills.
• Interest in AI and emerging technologies.

Responsibilities

• Build robust, enterprise-grade solutions.
• Drive innovation through digitalization and AI.
• Collaborate with cross-functional teams.

Skills

Java

Python

C++

C#

CI/CD

AWS

Azure

Education

Bachelor's degree in Computer Science or Engineering

Job description

LSEG Data & Analytics is one of the world's largest providers of financial markets data and infrastructure. With over 40,000 customers and 400,000 end users across approximately 190 markets, we are an essential partner to the global financial community and redefining the future of data in financial services. We enable customers to draw crucial insights through data, feeds, analytics, AI and workflow solutions.

Our engineers design, develop and deliver the products and services that reimagine how our industry works. Driving innovation through digitalisation and AI, we deliver accelerated impact and excellence for customers every day.

The Opportunity

We are seeking passionate software engineers from mid-level to lead to help us build robust, enterprise-grade solutions that drive real‑world impact.

Our problems are complex from building AI‑powered analytics that are constantly evolving, to challenges that define modern finance, giving engineers the opportunity to stretch their craft and shape solutions that matter.

Our software engineers have a strong appetite for innovation, new technologies, and AI, both in how we accelerate engineering and in how we create smarter, more valuable experiences for our customers. We encourage curiosity, experimentation, and continuous learning, giving our teams the opportunity to solve complex challenges at scale.

What We Look For

• Experienced Software Engineers with one of the following technologies - Java, Python, C++ or C#
• Strong experience with CI/CD, unit testing framework and automation (testing/deployment) in cloud platforms such as AWS or Azure
• Curiosity about AI and a strong interest in how emerging technologies can be applied to solve complex software engineering problems.
• Prior Financial Services or Big Tech experience preferred
• Bachelor's degree in Computer Science, Engineering and related field or relevant experience

• Excellent problem‑solving skills and a proactive approach to identifying and resolving issues
• Willingness to learn and work with new technologies across the full stack
• Strong teamwork and communication skills, with the ability to collaborate optimally with cross‑functional teams across multiple regions and timezones

Career Stage

Manager

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.