Principal Platform Engineer

Job Description (Job advert content)

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.

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.

This role sits within a strategic platform engineering team responsible for the production stability, performance and operational readiness of Kubernetes‑based platforms supporting LSEG’s latency‑sensitive, real‑time financial market applications.

As a Kubernetes Production Engineer, you will focus on running Kubernetes at scale in production — ensuring clusters, networking, and supporting services are reliable, observable and fit for purpose under real‑world load. You will work closely with platform build teams, architects and application owners to harden platforms, improve operational tooling, and ensure services are production‑ready before and after go‑live.

This is a hands‑on engineering role for someone who enjoys working close to live systems, diagnosing complex behaviours in distributed environments and continuously improving how Kubernetes platforms are operated. The ideal candidate is comfortable in fast‑paced environments, thrives on problem‑solving and brings a strong production mindset rather than a purely development or design focus.

• Owning the production operation of Kubernetes and hybrid cloud platforms, including reliability, performance and stability.

• Implementing and evolving monitoring, alerting and observability across Kubernetes clusters and supporting infrastructure.

• Analysing platform behaviour under load, identifying risks and driving proactive improvements.

• Supporting incident response, root cause analysis and post‑incident actions for Kubernetes‑based services.

• Partnering with platform engineers and application teams to ensure production readiness and smooth onboarding.

• Improving automation, runbooks and operational tooling to reduce manual intervention.

• Acting as a Kubernetes production SME, advising on best practice and operational standards.

• Influencing platform roadmaps through data‑driven operational insights.