Senior Cloud Platform Engineer

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:

You will be a highly experienced and hands-on Senior AWS Platform Engineer to join our dynamic Cloud Engineering security team. In this critical role, you will be responsible for designing, implementing, and maintaining robust security solutions across our entire AWS cloud landing zone. This role involves close collaboration with various teams to drive cloud adoption and implement AWS best practices. This is a hands-on role where you will be expected to write code, configure security tools, and work closely with cloud architects, platform and security engineers. 

Key Responsibilities: 

• Architect and Design: Lead or contribute to the design and implementation of secure AWS architectures, ensuring adherence to security best practices, industry standards (e.g., NIST, ISO 27001), and regulatory requirements. 

• Implementation & Automation: Develop, deploy, and maintain automated security controls and infrastructure as code using tools like Terraform or AWS CDK. 

• Security Tooling: Select, implement, and optimize a wide range of AWS security services (e.g., GuardDuty, Security Hub, Inspector, WAF, KMS, Macie, Config, Organizations) and third-party security tools. 

• Vulnerability Management: Establish and mature vulnerability scanning, penetration testing, and remediation processes for AWS environments and applications. 

• Identity & Access Management (IAM): Design and enforce robust IAM policies, roles, and permissions across AWS accounts and applications, adhering to the principle of least privilege. 

• Network Security: Securely configure AWS networking components (VPCs, Security Groups, NACLs, Transit Gateways) and integrate with network security solutions. 

• Data Protection: Implement and enforce data encryption at rest and in transit and establish data loss prevention (DLP) strategies within AWS. 

• Compliance & Audit: Ensure AWS environments are compliant with relevant industry regulations and internal security policies. Support internal and external audits. 

• Mentorship & Leadership: Provide technical leadership, guidance, and mentorship to junior security engineers and development teams on AWS security best practices. 

• Security Culture: Champion a strong security culture across the organization, promoting secure development practices and raising security awareness. 

• Research & Innovation: Stay abreast of emerging AWS security threats