Senior Platform Engineer
LSEG· enterprise· Financial Data & Infrastructure· Aug 18, 2026 · 2mo agoPosted 70 days ago
St. Louis, Missouri
In office
Full-time
Senior
$145K–$185K est.
Before you apply
Ghost Signal:
Open 70 days.
Job description
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 dedication 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, manage 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 rewarding 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 meaningful careers.
ROLE SUMMARY:
This is an exciting opportunity to join a high impact engineering team responsible for developing and evolving the LOCP platform, a strategic technology enabling the migration of flagship real time systems onto an advanced, cutting-edge container platform designed for ultra-low latency, high throughput, and resilience.
You will be working at the forefront of platform engineering, contributing to the design, implementation, and evolution of enterprise scale infrastructure and platform capabilities that operate at extraordinary scale. Working alongside engineering, product, architecture, and SRE specialists, you will contribute to the engineering excellence that underpins some of the world s most demanding technology environments.
This role offers an exceptional opportunity to deepen your technical expertise, work with leading-edge technologies, and contribute to world class platform solutions within a highly supportive, collaborative, and innovative engineering culture.
WHAT YOU LL BE DOING:
As a Senior Engineer, you will:
Platform Engineering & Delivery
Design, develop, implement, and support LOCP platform capabilities across development, test, and production environments.
Build and maintain platform services using Infrastructure as Code, automation, and modern engineering practices.
Participate in technical design discussions and contribute to engineering decisions within your areas of responsibility.
Reliability & Operational Excellence
Apply Site Reliability Engineering (SRE) principles to improve platform reliability, scalability, performance, and operational effectiveness.
Develop and enhance observability capabilities through logging, metrics, tracing, dashboards, and alerting solutions.
Perform troubleshooting, root cause analysis, and problem resolution across platform services and infrastructure components.
Collaboration & Growth
Work closely with Lead Engineers, Principal Engineers, architects, product teams, and application owners to deliver platform capabilities aligned to business needs.
Participate in peer reviews, knowledge sharing, and engineering community activities.
Continuously develop technical expertise and remain current with emerging platform, cloud native, and observability technologies.
Contribute positively to a culture of collaboration, innovation, ownership, and continuous learning.
Ways of Working
Operate effectively within agile and iterative delivery models.
Deliver high quality engineering outcomes through testing, documentation, automation, and adherence to engineering standards.
Balance multiple priorities while maintaining a focus on quality, reliability, and customer outcomes.
Demonstrate accountability, teamwork, and a proactive approach to problem solving.
WHAT YOU LL BRING:
Core Technical Skills (Primary Focus)
We are interested in engineers who possess strong experience in several of the following areas and demonstrate expertise in at least two :
Building, operating, or supporting Kubernetes-based platforms in enterprise or large-scale production environments.
Infrastructure as Code, particularly Terraform.
Site Reliability Engineering (SRE) practices, including automation, operational excellence, incident management, and service reliability.
Observability technologies covering metrics, logging, tracing, monitoring, alerting, and dashboarding.
Software engineering and automation development using Go (Golang).
Linux systems knowledge, including troubleshooting, performance analysis, and platform operations; experience with CI/CD pipelines, Git-based workflows, and modern software delivery practices.
Senior Engineers with experience in multiple disciplines and a willingness to broaden their knowledge across the remaining areas will thrive in this role.
Soft Skills:
Strong analytical and problem-solving skills.
Effective communication skills and the ability to work collaboratively across technical teams.
Commitment to engineering excellence and a passion for learning, developing new capabilities, and taking ownership of engineering challenges.
If you are passionate about platform engineering, cloud native technologies, automation, reliability, and continuous learning, this role offers an outstanding opportunity to build your expertise while helping deliver the next generation of enterprise-scale platform solutions.
Join us and help shape world class platform solutions that power the future of global technology services.
Career Stage:
Senior Associate
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 well as mental health or physical disability needs.
You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.
LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.
Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject .
If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.
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Keywords to mirror
agilekubernetesgogolangci/cd
- Platform
- workday
- Effort
- long
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