Senior DevOps Engineer

Platform Security & Cloud Engineering

* Design, implement, and maintain secure cloud infrastructure across AWS and Azure environments.

* Develop reusable Terraform modules and Infrastructure-as-Code standards that enforce security, governance, and operational best practices.

* Implement cloud security guardrails, policy-as-code controls, and secure infrastructure patterns.

* Partner with engineering teams to ensure secure-by-design solutions are adopted consistently across platforms and services.

* Support cloud modernization initiatives, infrastructure standardization, and enterprise platform adoption.

DevSecOps & Secure Software Delivery

* Design and operate secure CI/CD platforms with integrated security controls.

* Implement security tooling including SAST, dependency scanning, secrets detection, infrastructure scanning, container security, and policy validation.

* Embed security throughout the software development lifecycle while maintaining developer velocity.

* Drive automation-first approaches that reduce manual security gates and operational overhead.

* Collaborate with development teams to improve application security and software delivery practices.

Migration Automation, Validation & Assurance

* Lead enterprise migration initiatives involving repositories, artifacts, CI/CD platforms, cloud services, and developer tooling.

* Design and implement migration automation frameworks that improve reliability, consistency, and scalability.

* Develop pre-migration validation capabilities to identify issues before execution.

* Implement dry-run and simulation capabilities to improve migration confidence and planning accuracy.

* Define migration completion criteria, validation standards, operational readiness requirements, and acceptance processes.

* Build automated post-migration validation and assurance mechanisms to verify migration success.

* Develop migration reliability features including validation workflows, checkpointing, retry mechanisms, and operational safeguards.

* Design configurable migration capabilities such as repository mapping, path transformation, and path-prefix stripping logic to support complex migration scenarios.

* Ensure migrations are measurable, repeatable, auditable, and aligned with business objectives.

Platform Adoption & Developer Experience

* Drive successful adoption of enterprise platforms by ensuring migrations deliver measurable value to engineering teams and stakeholders.

* Act as a trusted advisor to application teams throughout onboarding, migration, and platform adoption journeys.

* Identify and remove barriers to adoption by improving onboarding processes, documentation, automation, and self-service capabilities.

* Design migration and onboarding experiences that minimize disruption and maximize engineering productivity.

* Gather user feedback and continuously improve platform usability, reliability, and operational effectiveness.

* Define and measure platform adoption metrics, onboarding success, user satisfaction, and migration outcomes.

* Advocate for platform consumers while balancing security, governance, compliance, and operational requirements.

* Drive continuous improvements that enhance developer experience and reduce friction when consuming enterprise services.

Security Automation & Engineering

* Develop production-grade automation solutions using Python, Bash, APIs, and cloud-native technologies.

* Automate onboarding, compliance validation, infrastructure provisioning, security controls, and operational workflows.

* Build integrations between platform, security, and operational tooling.

* Create self-service automation that improves scalability and reduces manual effort.

* Continuously identify opportunities to reduce risk and improve efficiency through automation.

Observability, Detection & Response

* Design and maintain end-to-end observability solutions across infrastructure, applications, and developer platforms.

* Build centralized logging, monitoring, tracing, metrics, and alerting capabilities.

* Integrate security telemetry into SIEM and observability platforms.

* Support incident detection, investigation, response, and continuous improvement activities.

* Improve operational visibility and reduce mean time to detect (MTTD) and mean time to resolve (MTTR).

Identity, Access & Secrets Management

* Design and implement secure access management solutions.

* Manage secrets lifecycle and credential distribution using enterprise secrets management platforms.

* Enforce least-privilege access models and secure authentication patterns.

* Support SSO integration, identity governance, and access control initiatives.

* Strengthen enterprise security posture through secure identity and secrets management practices.

Career Stage:

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.

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