Senior Engineer, Site Reliability Engineer

LSEG; United Kingdom; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Healthcare

Retirement planning

Volunteer days

Wellbeing initiatives

Job summary

LSEG is hiring Site Reliability Engineers to support real-time trading and market data services in the United Kingdom. You will own operational support, drive cloud migrations, and automate tasks while building dynamic observability capabilities.

Join a globally distributed team of technical professionals. You will tackle incident recovery, production stability, and proactive improvements to reduce alert fatigue and enable fast product innovation.

Qualifications

• Extensive UNIX administration and scripting experience.
• Cloud-native applications support, AWS or Azure preferred.
• Networking knowledge (TCP/IP, HTTP, DNS) for real-time/low-latency contexts.
• Kubernetes, Docker and container-based development experience.
• Troubleshooting large distributed systems; market data experience a plus.
• Observability tooling experience (DataDog, BigPanda) desirable.
• Git version control proficiency.
• Bachelor’s degree in CS or related field; 8+ years of industry experience.

Responsibilities

• Lead incident recovery and root-cause analysis with rapid troubleshooting.
• Write incident reports and advocate for customers in post-incident reviews.
• Maintain stable production environments and assess deployment risks.
• Automate operational processes and reduce noisy alerts.
• Develop deep expertise in dataflows, networking, and troubleshooting.
• Collaborate with development teams to implement production improvements.
• Serve as SRE liaison for new projects and drive operational acceptance testing.

Skills

UNIX scripting

Cloud experience

Networking

Kubernetes

Docker

Observability tools

Git

Real-time / low-latency

Distributed systems

Bachelor's degree

Education

Bachelor's degree in CS or related

Tools

DataDog

BigPanda

Git

Job description

We are hiring Site Reliability Engineers (SREs) to expand our team supporting LSEG’s Real Time application space. This space provides thousands of clients with access to trading and market data globally. Our team efficiently mitigates operational risk, enabling fast product innovation and enhancing customer experience.

As an SRE, you will own operational support, drive cloud migrations, and automate operational tasks. You will also create dynamic observability components and develop subject matter expertise. Join our diverse, globally distributed team of multi-faceted technical professionals. You will have the opportunity to hone your skills in a fast-paced environment that processes real-time data.

Key Responsibilities:

• Lead Incident Recovery: Direct the recovery of incidents, analyze facts quickly, perform troubleshooting activities, and coordinate actions through incident recovery meetings.
• Incident Reporting and Customer Advocacy: Write detailed incident reports, advocate for customers in post-incident reviews, and review and approve customer statements.
• Production Environment Stability: Ensure a stable production environment by safely delivering changes and thoroughly assessing deployment risks.
• Operational Process Improvement: Automate operational processes to reduce manual work. Ensure all alerts are actionable and collaborate with development teams to eliminate unnecessary alerts.
• Subject Matter Expertise: Develop expertise in application dataflows and networking topologies and maintain comprehensive troubleshooting knowledge bases.
• Collaboration with Development Teams: Collaborate closely with development teams to prioritize iterative improvements to production environments in the product backlog.
• Project Intake and Delivery: Serve as the SRE point of contact for new projects. Collaborate with project delivery teams to produce high-quality project artifacts, ensure application designs meet supportability standards, conduct operational acceptance testing, and lead Game Day activities.

Technical qualifications:

• Extensive experience in UNIX administration and scripting, including shell scripting and automation.
• Practical experience supporting cloud-native applications, with a preference for AWS or Azure.
• Advanced understanding of networking concepts such as TCP/IP, HTTP, and DNS resolution, with experience in real-time or low-latency environments a plus.
• Experience in configuring and using Kubernetes, Docker, and container-based development and applications.
• Proven experience in troubleshooting large distributed systems; experience with market data systems is a plus.
• Expertise in working with and maintaining observability tooling (DataDog and BigPanda experience is highly desirable)
• Strong grasp of version control systems, particularly Git.
• A bachelor’s degree in computer science or a related technical field involving software/systems engineering, or equivalent practical experience.
• A minimum of 8 years of work experience in the industry, with customer support experience being a plus.

Does this sound like a challenge you are interested in taking on? Join us!

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 organization 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.

• LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, color, 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 accommodate applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs. 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.

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, color, 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.