Lead DevOps Engineer - Real Time Platform

About the role

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: FTSE Russell (LSEG) is building the real-time platform that powers global index calculation across equity, fixed income, and multi-asset markets. We're looking for a hands-on Lead DevOps Engineer to design, secure and operate the cloud infrastructure that keeps this platform always on - supporting low-latency, real-time workloads at global scale. This is an individual contributor leadership role , where you'll define infrastructure architecture, raise operational standards, and ensure resilience, security, and observability across a mission-critical platform. AI-First Engineering This team operates with an AI-first approach. We expect hands-on experience with AI development tooling: terminal-based agents, AI-augmented IDEs, and automated workflows. You are ultimately accountable for production quality, security, and correctness. This means owning infrastructure review, security validation, system observability, and operational guardrails.

Responsibilities

• Design and operate cloud infrastructure on AWS to support low-latency, always-on real-time workloads.
• Own infrastructure as code and platform architecture , ensuring secure, scalable and reproducible environments.
• Embed security and resilience by design , including IAM, network controls, encryption, and failover strategies.
• Build observability and operational excellence , enabling fast detection and resolution of incidents.
• Enable safe, fast delivery through CI/CD and automation , partnering closely with engineering teams.
• Tech Stack
• Infrastructure as Code: Terraform, AWS CloudFormation, AWS CDK.
• Cloud: AWS (Lambda, API Gateway, S3, SQS, SNS, Aurora, VPC, IAM, CloudFront, WAF, and others as required).
• CI/CD: GitLab CI, Terraform, AWS CLI.
• Observability: CloudWatch, Datadog, OpenTelemetry
• Languages: Python, Bash, TypeScript.
• AI Development: Agentic AI tooling (e.g. GitHub Copilot, Claude Code).

Requirements

• Strong experience designing and operating cloud-native infrastructure on AWS.
• Deep expertise in infrastructure as code (Terraform) at scale.
• Proven ability to build and run resilient, highly available systems.
• Strong understanding of cloud security principles , with hands-on implementation.
• Experience with observability and incident response in production systems.
• Ability to lead through technical standards and delivery , not just tooling.
• Experience supporting low-latency or real-time systems.
• Exposure to financial services or market data platforms.
• Practical experience with AI-assisted engineering workflows.
• How We Work
• The Real Time team builds and operates the platform that calculates, manages and distributes FTSE Russell's real-time indices to the global financial ecosystem. We foster a culture of

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