Head of Security Architecture page is loaded## Head of Security Architecturelocations: London, United Kingdomtime type: Full timeposted on: Posted Todaytime left to apply: End Date: July 29, 2025 (13 days left to apply)job requisition id: R0107534**Role Purpose**As Group Director, Head of Security Architecture, you’ll be a core member of the LSEG Cyber Security team. You’ll lead and set the direction for the Cyber Security Architecture team which delivers across a number of areas:Principal Security architecture – a team of engineers who ensure security is build in to all projects across the group. Each architect is aligned to our business units and builds a deep relationship with the teams in that unit. Security Architecture Design – a central function that delivers design patterns to ensure a consistent implementation of our controls across the group. This team researches new technologies, and provides guidance on how to secure them. They also run a project to provide a risk posture review across the application portfolio against our standards. This team also runs design forums, assists in policy and standard creation, and provides consulting on hard security problems as needed. Security Architecture review – a central function that delivers a range of security reviews - architecture governance reviews for new build and change projects; network perimeter / firewall reviews to ensure changes are in line with agreed architectures; and third party reviews ensuring our vendor / supply chain portfolio meets our security standards.You and your teams will be involved in all major projects in the group – ranging from technology new build, cloud migration projects, transformation programs, as well as mergers, acquisition and divestments. As a critical national infrastructure provider across many global regulated markets, you will ensure our technology systems are architected to meet the security rules expected by regulators and our customers and partners.**Role Responsibilities*** Leads the development and execution of strategy for Security Architecture team, setting and driving the achievement of KPIs and objectives through effective leadership and ensuring alignment with the broader Cyber Security and Architecture Functions’ strategy* Manages performance, development and wellbeing of a team of architects across various technology domains to providing end to end architecture services* Owns the relationships with key stakeholders – including Cyber Security peers, group CTO, Heads of Architecture, First and Second line Engineering Risk, Business Information Security Officers. Defines, Manages and Operates the key functions of the Security Architecture team – Secure Design; Principal Security Architecture; Security Architecture review.* Defines architecture principles, policies and standards to produce function specific reference architectures and patterns* Contributes to the development of global enterprise standards for the central Architecture & Technology Strategy function* Builds relationships with vendors, regulators and industry bodies to seek and adopt industry best practices in enterprise architecture and technology strategy* Seeks latest technology and business innovations relevant for the function (e.g., Automation, Artificial Intelligence, Quantum Computing etc.)* Acts as trusted advisor and leader across the wider LSEG Engineering group.* Ensure Engineering projects meet critical security regulations [DORA, LPM etc]* Leads security engagement on major transformation protects.**Minimum Requirements*** Knowledge of financial market infrastructure technology, and experience in deploying pragmatic security controls (e.g. trading systems, market data systems, low latency technology)* Enterprise Architecture, Technology Strategy, Cloud, Security, Applications and Infrastructure* Performing detailed security reviews of complex systems* Experience of working with architectural development methodology, standards development, technology architecture* Qualifications in security leadership, such as but not limited to CISSP, CISMP or CISM and TOGAF in architecture* Modern engineering practices, agile practices, automation and deployment pipelines.* Extensive experience in Enterprise Architecture and Technology Strategy across multiple Financial Services organisations, or similarly regulated organisations, that provide Technology Services to revenue generating divisions within large multi-country organisations* Experience of developing and influencing strategic working relationships with key technology suppliers* Experience in a leadership role within Security in a global financial Services, FinTech, or Technology organisation* Experience in managing high performing teams and empowering them to deliver against the agreed strategy & roadmap* Experience of establishing and monitoring governance, including accountability, engagement, KPI metrics, etc., and planning and controlling budgets* Strong verbal and written communication skills, with particular ability to communicate technical information to non-technical senior stakeholders and to listen to identified concerns and adapt accordingly* Experience of successfully planning and delivering large scale complex technology integrations and technology transformation programmes* Proven ability to work well under pressure – particularly during an incident.LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. LSEG is a systemically important part of the global financial system. It is the UK’s second largest financial services business by market capitalisation, and in the top 10 of the FTSE 100.A major financial information provider, with extensive experience, deep knowledge, and worldwide presence across financial markets, LSEG enables businesses and economies around the world to fund innovation, manage risk and create jobs. LSEG has 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 its open-access model – LSEG provides the flexibility, stability and trust that enable its customers to pursue their ambitions with confidence and clarity.LSEG is headquartered in London, with significant operations in 70 countries across EMEA, North America, Latin America, and Asia Pacific. The Group employs 26,000 people globally, more than half located in Asia Pacific. LSEG’s ticker symbol is LSEG.The core values of the business are integrity, partnership, excellence, and change.LSEG has demonstrated its successful strategy as shown in its strong financial performance. Post the Refinitiv acquisition, LSEG has shifted from a period of integration to transformation. The Group is a proven innovator with its market leading strategic partnership with Microsoft enabling next-gen data, analytics and cloud infrastructure solutions.LSEG operates across the following divisions:**Data & Analytics:** delivering data-driven insights, workflow and products to customers simply and flexibly so they can make better-informed decisions.**FTSE Russell:** delivering category-defining indices across asset classes and investment objectives to create new possibilities for the global investment community.**Risk Intelligence:** providing a comprehensive suite of screening, due diligence, verification and onboarding solutions, helping customers protect their businesses from a wide range of threats.**Markets:** supporting customers across the end-to-end capital markets workflow, providing them with access to liquidity across multiple asset classes and regions; supporting their clearing and reporting obligations; and providing risk and balance sheet solutions.LSEG is a leading global financial markets infrastructure and data provider. 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