Lead Engineer - Kubernetes & CNI

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 exceptional opportunity to join a high impact engineering team delivering the next generation of LSEG's latency optimised, real time market data platforms. You will be working at the forefront of Kubernetes platform engineering, with a focus on Container Network Interface (CNI) technologies, helping shape and evolve our hybrid cloud container ecosystem.

As part of the specialised container platform, integration, and network connectivity engineering group, you will contribute to the design, development, and lifecycle management of globally consumed infrastructure services. This team plays a central role in our strategic transformation, where innovation, curiosity, and continuous learning are highly valued.

We are looking for engineers who thrive in fast moving, complex environments, are self motivated, and enjoy solving deep technical problems. This role offers the chance to work with emerging technologies while contributing real engineering impact in an area undergoing rapid evolution.

WHAT YOU'LL BE DOING:
Engineering & Delivery
* Contribute to the design, implementation, and enhancement of Kubernetes based container platform components, with a focus on CNI, networking, and cluster-level integrations.
* Lead delivery of engineering tasks for Kubernetes platform features across development, test, and production environments.
* Implement, configure, and validate CNI solutions (e.g., Cilium), network policies, and associated platform capabilities.
* Drive high quality engineering practices including testing, documentation, peer reviews, and CI/CD automation.
Technical Influence & Collaboration
* Act as a domain specialist in Kubernetes and CNI networking, guiding team members and partnering with adjacent engineering squads.
* Provide technical input into platform architecture, backlog refinement, and feasibility assessments.
* Assist application teams onboarding to the container platform, providing guidance on networking, cluster usage, and deployment patterns.
Operational Excellence
* Support troubleshooting and root-cause analysis across multilayered network and container environments.
* Contribute to platform reliability and observability improvements through dashboards, run-books, and automation.
* Evaluate new tools, technologies, and approaches and present findings to the wider engineering community.
Ways of Working
* Operate effectively in an agile, iterative delivery model.
* Manage multiple work streams and priorities in a dynamic environment.
* Uphold engineering standards and advocate for platform quality, stability, and scalability.

WHAT YOU'LL BRING:
* Hands on Kubernetes engineering experience in production environments.
* Strong CNI experience, ideally including Cilium, Kubernetes networking, network policies, and service routing.
* Solid understanding of Linux networking fundamentals and container networking internals.
* Working knowledge of Kubernetes deployment pipelines, Git-based workflows, and automated testing principles.
* Strong recent Linux (especially Ubuntu) experience.
* Exposure to monitoring, observability, and troubleshooting across containerised workloads.
* Familiarity with CI/CD tools (GitLab, Jira, Confluence).
* Experience with automation tools such as Terraform, Ansible, or scripting languages.
* Understanding of performance tuned or latency sensitive environments (preferred but not required).
* Ability to collaborate effectively across teams and communicate technical concepts clearly.
* Strong analytical and problem solving ability in complex system environments.
* Comfortable working in a fast-paced environment with evolving priorities.

Why This Role Is Exciting
You will be joining a group that is:
* Transforming mission critical, global realtime systems onto an advanced, high performance Kubernetes platform.
* Operating at enterprise scale with modern engineering practices.
* Encouraging continuous learning, experimentation, and adoption of new technologies.
* Offering clear opportunities for career growth, deeper technical mastery, and influence over LSEG's future container strategy.
If you are intellectually curious, enjoy working with cutting edge container technologies, and want to help drive a major platform transformation, this role is an excellent next step.

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 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