GTSM Site Reliability Engineering Lead

Purpose of the role

To effectively monitor and maintain the bank’s critical technology infrastructure and resolve more complex technical issues, whilst minimising disruption to operations. 

Accountabilities

• Provision of technical support for the service management function to resolve more complex issues for a specific client of group of clients. Develop the support model and service offering to improve the service to customers and stakeholders.
• Execution of preventative maintenance tasks on hardware and software and utilisation of monitoring tools/metrics to identify, prevent and address potential issues and ensure optimal performance.
• Maintenance of a knowledge base containing detailed documentation of resolved cases for future reference, self-service opportunities and knowledge sharing.
• Analysis of system logs, error messages and user reports to identify the root causes of hardware, software and network issues, and providing a resolution to these issues by fixing or replacing faulty hardware components, reinstalling software, or applying configuration changes.
• Automation, monitoring enhancements, capacity management, resiliency, business continuity management, front office specific support and stakeholder management.
• Identification and remediation or raising, through appropriate process, of potential service impacting risks and issues.
• Proactively assess support activities implementing automations where appropriate to maintain stability and drive efficiency. Actively tune monitoring tools, thresholds, and alerting to ensure issues are known when they occur.

Director Expectations

• To manage a business function, providing significant input to function wide strategic initiatives. Contribute to and influence policy and procedures for the function and plan, manage and consult on multiple complex and critical strategic projects, which may be business wide..
• They manage the direction of a large team or sub-function, leading other people managers and embedding a performance culture aligned to the values of the business. Or for an individual contributor, they lead organisation wide projects and act as deep technical expert and thought leader, identifying new ways of working and collaborating cross functionally. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions..
• Provide expert advice to senior functional management and committees to influence decisions made outside of own function, offering significant input to function wide strategic initiatives.
• Manage, coordinate and enable resourcing, budgeting and policy creation for a significant sub-function.
• Escalates breaches of policies / procedure appropriately.
• Foster and guide compliance, ensure regulations are observed that relevant processes in place to facilitate adherence.
• Focus on the external environment, regulators, or advocacy groups to both monitor and influence on behalf of Barclays, when appropriate.
• Demonstrate extensive knowledge of how the function integrates with the business division / Group to achieve the overall business objectives.
• Maintain broad and comprehensive knowledge of industry theories and practices within own discipline alongside up-to-date relevant sector / functional knowledge, and insight into external market developments / initiatives.
• Use interpretative thinking and advanced analytical skills to solve problems and design solutions in often complex/ sensitive situations.
• Exercise management authority to make significant decisions and certain strategic decisions or recommendations within own area.
• Negotiate with and influence stakeholders at a senior level both internally and externally.
• Act as principal contact point for key clients and counterparts in other functions/ businesses divisions.
• Mandated as a spokesperson for the function and business division.

All Senior Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

Key responsibilities

• Lead the Core (central) SRE team, delivering high‑impact, reusable solutions focused on toil reduction, service stability, resilience, and operational capacity creation.
• Own the GTSM SRE operating model, standards, governance, and benefits realisation, ensuring consistent execution and measurable outcomes across BU‑aligned (federated) SRE teams.
• Partner closely with CTO, GTIS, and GTSM Tooling teams on tooling strategy, platform roadmap, and enterprise enablement for SRE capabilities.
• Drive adoption of common tooling, platforms, and engineering patterns, ensuring solutions are scalable, secure, and aligned to enterprise architecture.
• Provide senior technical leadership and guidance to BU teams, accelerating delivery while maintaining control, quality, and sustainability.
• Translate strategic priorities into a prioritised RTB SRE book of work, aligning investment to outcomes in stability, resilience, efficiency, and customer experience.

Why this role is critical to keep

• Provides single, accountable SRE leadership across GTSM, anchoring the Intelligent Technology Operations strategy into RTB execution.
• Ensures technical consistency, scalable solution design, and reuse across business units, reducing fragmentation and duplication - embedding consistent / best practices across teams.
• Acts as the senior leader partnering across GTSM, BUs, CTO and Platform teams to accelerate delivery and embed a proactive, engineering‑led RTB operating model.