Infrastructure Reliability Engineer at LSEG (London Stock Exchange Group) (St. Louis, MO)

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The BIS IRE team is responsible for the 24x7 infrastructure support of a number of business-critical services that underpin the overall performance of a multi-billion-dollar business segment within LSEG.

Reliability Engineers will be contributing to the availability of services, their security and regulatory compliance, and the customer experience associated with their domain. The role also guaranties the reliable, agile and continuous flow of change required to optimize the performance of their platform ecosystem and performance of the customer service.

The role will have the following responsibilities:

  • Identifies and proposes strategic service and system changes, enhancements and developments and liaises with appropriate third party and software vendors, users and IT teams (Cloud, Virtualization, Storage, Networking, BigData, Middleware, DB, etc.).
  • Responsible for delivering best of breed enhancements to the environment including but not limited to automation, monitoring and alerting.
  • Architect, Design and Drive enhancements to the environment through to implementation.
  • Proactively ensure the highest levels of systems and infrastructure availability.
  • Understand existing complex environment and be able to easily identify problem areas and undertake successful implementations to resolve and/or mitigate.
  • Apply the best of Site Reliability Engineering, DevOps, CI/CD and Infrastructure as Code practices to simultaneously increase change velocity and platform stability.
  • Ensuring monitoring performance and identifying any issues, identify possible solutions, and work with support engineers to provide resolution.
  • Participate in the design of information and operational support systems.
  • Install, configure, test and maintain operating systems, application software and system management tools.
  • Provide an advanced level of support to the existing environment when required.
  • Maintain security, backup, and redundancy strategies.
  • Write and maintain custom scripts to increase system efficiency and lower the human intervention time on any tasks.
  • Escalate risks and issues and provide frequent status reports and for management.
  • Write and maintain appropriate documentation for manual and automated processes.
  • Manage, deliver and monitor a number of key improvements to the current systems and infrastructure.
  • Actively report on project progress, raising risks and managing deliverables often with conflicting priorities and timescales.

Desirable: Puppet, Ansible, AWS, IaC (Terraform, CloudFormation), Docker, Kubernetes, Jenkins, Splunk, Kibana, Grafana, Rundeck, RegEx.


  • B.S./B.A. Computer Science or related field; or equivalent level of experience.
  • 3+ years' experience in an IT or technology support role.
  • Solid interpersonal skills and comfortable interacting with stakeholders at both infrastructure and application levels. Must be willing to step up and drive major incidents involving production environments with a strong sense of urgency.
  • Scripting experience in at least one of the following: PowerShell, BASH, Python, Perl, Ruby.
  • Systems configuration and administration: Windows and/or Linux.
  • Large scale networking systems knowledge (Network+ or equivalent training desired)
  • Ability to analyze how components of a distributed system work together using a broad range of skills and tools.

At LSEG, we believe that creating a diverse and inclusive organisation is fundamental to the way we deliver on our promise - and our purpose. You'll be part of an organisation of over 25,000 people, spanning 70 countries. We recognise the individual perspectives each of our colleagues brings, and our diverse workforce is one of our greatest strengths. In supporting collaboration and creativity and encouraging new ideas across a diverse and inclusive workforce, we can improve how we are driving financial stability, empowering economies and enabling customers to create sustainable growth.

LSEG offers a range of tailored benefits and support from healthcare and retirement planning to paid volunteering days and wellbeing initiatives.

We are an equal opportunities employer. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. In accordance with applicable law, we make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as any mental health or physical disability needs.

Please take a moment to read this privacy notice carefully, as it describes what personal information the 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.
More Information on LSEG (London Stock Exchange Group)
LSEG (London Stock Exchange Group) operates in the Analytics industry. LSEG (London Stock Exchange Group) was founded in 2022. It has 10766 total employees. It offers perks and benefits such as Health Insurance Benefits, Remote Work Program, Paid Holidays, Paid Sick Days, Stocked Kitchen and Diversity Program. To see all 18 open jobs at LSEG (London Stock Exchange Group), click here.
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