Role Summary
Reporting into the Cloud Architecture Organisation, this role provides strategic cloud network architecture leadership across multiple public cloud platforms. The position demands exceptional technical depth across cloud service providers (including AWS, Azure, GCP, and OCI) combined with strategic thinking to shape and own our cloud networking patterns and standards.
You will be the technical authority for cloud networking architecture, responsible for developing and maintaining our cloud networking patterns library, driving technical excellence, and ensuring architectural consistency across our cloud platforms. This role requires deep understanding of enterprise-scale cloud networking challenges and the ability to create innovative solutions that balance security, scalability, and operational excellence.
Key Responsibilities

Strategic Architecture Leadership

• Own and develop the strategic direction for cloud networking patterns and standards across multiple cloud service providers
• Drive the evolution of our cloud networking architecture, ensuring alignment with business objectives and technology strategy
• Create and maintain enterprise-scale network architecture patterns that can be consistently applied across AWS, Azure, GCP, and OCI
• Develop migration strategies and technical approaches for transitioning legacy networks to cloud-native solutions

• Lead the definition of network security architecture patterns, incorporating zero-trust principles and cloud-native security controls

  Pattern Development & Governance

• Own the cloud networking patterns library, ensuring patterns are current, well-documented, and aligned with cloud provider best practices

• Design reusable networking patterns that address complex requirements including multi-region connectivity, hybrid cloud integration, and high-performance data transfer
• Establish architectural principles and standards for cloud networking implementations
• Create reference architectures for key networking scenarios including transit networking, service mesh implementations, and cloud interconnectivity

• Drive the adoption of Infrastructure as Code practices for network deployment and management

  Technical Authority & Innovation

• Serve as the technical authority for cloud networking across the organisation

• Evaluate emerging cloud networking technologies and services across multiple providers
• Lead proof-of-concept initiatives to validate new architectural approaches
• Drive innovation in areas such as network automation, service mesh architecture, and cloud-native networking

• Provide architectural oversight for critical networking initiatives and major architectural changes

  Stakeholder Leadership & Influence

• Build strong partnerships with Cloud Architecture, SRE, Security, and Application teams

• Influence senior stakeholders on technical direction and architectural decisions
• Lead architectural reviews and design sessions across multiple cloud platforms
• Drive collaboration between cloud and traditional infrastructure teams

• Mentor and develop cloud networking expertise across the organisation

  Required Experience & Skills

  Technical Expertise

• Minimum of 12 years’ experience in network engineering and architecture

• Deep technical expertise in at least three major cloud platforms (AWS, Azure, GCP, OCI)
• Proven track record of designing enterprise-scale cloud networking solutions
• Expert knowledge of cloud-native networking services and capabilities across multiple providers

• Strong background in network security architecture and zero-trust networking principles

  Strategic Capabilities

• Demonstrated ability to develop and implement technical strategy

• Experience creating and maintaining enterprise architecture patterns
• Strong track record of driving technical innovation
• Ability to balance theoretical architecture with practical implementation

• Experience leading major technical transformation initiatives

  Cloud & Infrastructure Knowledge

• Expert understanding of cloud networking principles and best practices

• Deep knowledge of Infrastructure as Code and network automation approaches
• Experience with service mesh architectures and container networking
• Strong background in hybrid cloud networking solutions

• Understanding of financial services specific networking requirements

  Leadership & Influence

• Proven ability to influence and drive technical direction without direct authority

• Excellence in communicating complex technical concepts to diverse audiences
• Experience mentoring and developing technical team members
• Strong stakeholder management skills at senior levels
• Track record of successful cross-functional collaboration

• Assist the director of cloud networking and deputise in their absence.

  Education & Certifications

• Bachelor’s degree in Computer Science or equivalent experience

• Professional certifications required across at least platforms:
• AWS Certified Advanced Networking or other Associate level
• Microsoft Certified: Azure Network Engineer Associate or other associate level
• Google Cloud Professional Network Engineer or other associate level
• Oracle Cloud Infrastructure or associate level
• HashiCorp Certified: Terraform Associate
• Additional industry networking certifications at associate or above

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. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.
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, 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.
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