Principal Cloud SRE / Cloud SME – LSEG Workspace in London

At LSEG, we build technology that helps people make informed decisions in global financial markets. We are looking for a Principal Cloud Site Reliability Engineer (SRE) with strong cloud platform experience to join us in evolving the reliability, scalability, and operational health of our LSEG Workspace platform. Workspace is a core product used by financial professionals around the world for real‑time data, analytics, research, and productivity. We design and operate this platform with care, balancing performance, resilience, security, and ease of use at scale.

In this role, we work with you to strengthen how our cloud‑native services are designed, operated, and supported across AWS and Azure. You will contribute hands‑on engineering skills, share technical guidance, and help shape long‑term platform approaches in a collaborative, learning‑oriented environment. We value thoughtful engineering, curiosity, and people who enjoy working with others to solve complex problems. This role combines technical depth, practical delivery, and the opportunity to positively influence how we build and run reliable systems.

What You’ll Contribute

• Cloud Platform Engineering & Reliability — Design and operate Workspace platform services that are resilient, scalable, and well understood. Contribute to cloud infrastructure and application reliability across AWS and Azure, with attention to availability, performance, and sustainable cost practices.
• Systems Design & Platform Direction — Provide experience‑based input into distributed systems design, container platforms such as EKS, cloud networking, storage, and security. Support exploration of new technologies aligned with platform needs and long‑term maintainability.
• Operational Ownership & Observability — Encourage shared responsibility for production systems. Investigate and resolve complex service issues while improving how we observe, understand, and prevent them. Build observability practices that support early detection, clear communication, and effective root‑cause analysis.
• Automation, CI/CD & Ways of Working — Contribute to automating infrastructure, delivery pipelines, and operational processes, supporting CI/CD workflows using GitLab. Use infrastructure as code tools such as Terraform to create consistency and confidence in our environments.
• Security, Governance & Trust — Embed security and compliance into everyday engineering practices. Ensure cloud services align with governance expectations, vulnerability management processes, and regulatory requirements, while supporting teams to deliver safely and efficiently.
• Collaboration & Knowledge Sharing — Partner across engineering and product teams. Share cloud and SRE knowledge, support less experienced engineers, and help create clear, reusable patterns that improve platform consistency. Value mentoring, documentation, and open technical discussion.

What You Bring

You have substantial experience in cloud engineering, site reliability engineering, or DevOps at a senior or principal level, with a hands‑on approach to building and supporting production systems. You have strong experience working with AWS and/or Azure and are comfortable operating Kubernetes‑based platforms such as EKS, along with a solid Linux foundation. You are familiar with SRE concepts and observability practices, and you have experience working with CI/CD tooling (such as GitLab) and infrastructure‑as‑code solutions like Terraform. You understand cloud‑native networking and high‑availability design, and you are comfortable working in Agile or Scrum‑based teams. Most importantly, you enjoy working collaboratively, communicating clearly, and learning alongside others in a continuously evolving technical environment.

Role Details

Career Level: Principal Engineer / Senior Associate
Career Stage: Manager

LSEG is an equal opportunities employer. This means that we do not discriminate on the basis of 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.

Join us and be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we partner with customers to meet 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.