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Lead Software Engineer - St. Louis Office

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: LSEG
Full Time position
Listed on 2026-08-22
Job specializations:
  • Software Development
    Software Engineer, AI Engineer (Applied/Software), Cloud Engineer - Software, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 108000 - 149000 USD Yearly USD 108000.00 149000.00 YEAR
Job Description & How to Apply Below
Location: St. Louis

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 a passionate Lead Engineer 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

We place great value on technical excellence and a drive for continuous learning.

  • Experienced Software Engineers 6+ years of experience with one of the following technologies – Java, Python, C++ or C#
  • Demonstrated ability to mentor and develop engineers, fostering a culture of technical excellence, continuous learning, and innovation.
  • Strong expertise in software architecture, system design, scalability, reliability, and performance optimization for enterprise-grade applications.
  • Experience driving the adoption of AI-assisted engineering practices and evaluating emerging technologies to improve developer productivity and product innovation.
  • 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

London Stock Exchange Group (LSEG) Information

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership
, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

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…

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