Senior Platform Engineer

London Stock Exchange Group; St. Louis (MO); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Healthcare

Retirement planning

Paid volunteering days

Job summary

London Stock Exchange Group in the United States is seeking a Senior Platform Engineer to design, build and operate LOCP platform capabilities at scale. You will apply SRE practices, IaC, and observability to deliver reliable, high-performance infrastructure for real-time systems and cloud-native deployments.

You will work with Lead Engineers, architects, product teams, and application owners in a collaborative culture that values learning, ownership and continuous improvement, while advancing

Qualifications

• Building, operating, or supporting Kubernetes-based platforms in enterprise or large-scale production environments.
• Infrastructure as Code using Terraform and modern delivery practices.
• SRE practices including incident management and service reliability.

Responsibilities

• Design, develop, implement, and support LOCP platform capabilities across dev/test/prod.
• Build platform services with IaC, automation, and modern engineering practices.
• Apply SRE principles to improve reliability, scalability, and performance.
• Develop observability via logging, metrics, tracing, dashboards, and alerts.
• Collaborate with engineers, architects, and product teams to meet business needs.

Skills

Kubernetes

Go (Golang)

CI/CD

Linux

Observability

Tools

Terraform

Git

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 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 organization 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 relevant 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

• 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.
• 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.
• 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.
• 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

• 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.
• 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.

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.

Privacy Notice

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LSEG (London Stock Exchange Group) 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 culture of connecting, creating opportunity and delivering excellence shapes how we think, how we do things and how we help our people fulfil their potential. Our Data & Analytics, Capital Markets and Post Trade divisions have a combined power that provides a comprehensive, integrated suite of trusted financial market infrastructure services to help our customers pursue their ambitions. Explore our divisions LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across Europe, the Middle East, Africa, North America, Latin America and Asia Pacific. Find out more Get to know some of our people who are pushing the boundaries of technology, finance and more around the world.