Business Introduction GSK remains committed to achieving bold commercial ambitions for the future. By 2031, we aim to deliver £40 billion in annual sales, leveraging our existing strong performance momentum to significantly increase our positive impact on the health of billions of patients globally. Our Ahead Together strategy is centred on early intervention to prevent and alter the course of disease, thereby protecting people and supporting healthcare systems. Our diverse portfolio consists of vaccines, specialty medicines, and general medicines. Through continuous innovation and a dedicated focus on scientific and technical excellence, we strive to develop and launch new, groundbreaking treatments that address critical health challenges. Job Purpose The Site Reliability Engineer improves the reliability, resilience and observability of GSK's platforms as a hands-on engineer, reducing toil, preventing incidents and meeting agreed reliability targets. The role defines and monitors SLOs, instruments platforms for observability, leads incident response through to permanent prevention, and applies AI and automation for anomaly detection, predictive alerting and self-healing. It also coaches platform engineering teams in reliability practice and error-budget discipline. The role sits in Reliability Engineering & Operations and is deployed into a platform domain while drawing on the central capability, so it holds the central reliability standard inside a team it does not report to. Platform build and engineering direction sit with the Principal Engineers and the Engineering Director, the major incident process sits with the Major Incident Manager, and the reliability standard itself is set by the Reliability Engineering Senior Director. Reliability targets are held jointly with the Platform Manager rather than imposed on them. ROLE SCALE AND COMPLEXITY This is a senior enterprise reliability leadership role operating across globally distributed, business-critical End User Computing and Mobile Device Management. The post holder is accountable for setting technical direction, resolving systemic and ambiguous reliability risks, and influencing prioritisation across multiple platform teams, suppliers and geographies without relying on direct line authority. The role manages a portfolio of interdependent services with material operational, regulatory, cyber, resilience and financial consequences. It shapes investment and supplier decisions and may influence or govern an annual technology and service portfolio of up to approximately GBP 23 million, where applicable to the assigned scope. Leads reliability outcomes for enterprise endpoint, mobility, identity-dependent workplace and device-management services used across global business operations. The role balances user experience, security, compliance, platform currency and service continuity across diverse device populations, operating models and local market requirements. MARKET SCOPE Global scope, supporting business operations across regions, countries and markets in which GSK operates. The role establishes consistent reliability outcomes across regional delivery teams while accommodating local regulatory, data-residency, business-continuity and market-criticality requirements. Key Responsibilities • Define and monitor SLOs for the platforms served, and instrument those platforms for observability so reliability is measured rather than assumed. • Apply AI and automation for anomaly detection, predictive alerting and self-healing, so that recurring conditions are handled without human intervention. • Lead incident response for the platforms served, and drive root-cause resolution through to permanent prevention rather than closing on restoration. • Improve resilience through capacity, failover and recovery engineering, and test recovery rather than documenting it. • Reduce operational toil through automation and reusable tooling, working the identified manual task and toil candidates and evidencing the effort removed. • Close observability coverage gaps for the platforms served, prioritising by the reliability risk each gap leaves unmeasured. • Coach platform engineering teams in reliability practice and error-budget discipline, so reliability is built in rather than inspected in. • Track reliability metrics against SLOs and team OKRs, and act on the trend rather than only reporting it. • Support reliability oversight of supplier-run services, holding partner-operated components to the same SLOs as internal ones. • Hold the central reliability standard while deployed in a platform domain, escalating to the Reliability Engineering Senior Director where local pressure would erode it. • Feed reliability evidence into the platform backlog held by the Product Owner, so that resilience work competes on stated risk rather than on goodwill. • Hold the boundaries with the Principal Engineers on platform build, the Major Incident Manager on the major incident process, and the Platform Manager on the reliability targets the platform commits to. • Set the multi-year reliability strategy and engineering roadmap for the End User Computing and Mobile Device Management portfolio, translating enterprise risk and business priorities into funded reliability outcomes. • Own cross-platform reliability governance, including service tiering, SLO policy, error-budget decisions, resilience exceptions and common engineering standards across internal and supplier-operated services. • Lead resolution of complex, high-impact and systemic failure modes spanning cloud, hosting, network, security, applications and third-party dependencies, with authority to convene senior technical and service leaders. • Provide evidence-based recommendations for investment, risk acceptance and supplier performance decisions, including prioritisation across a material service portfolio and, where delegated, spend of up to approximately GBP 25 million. • Represent Reliability Engineering in Director, Senior Director and VP-level governance, communicating service risk, business impact, trade-offs and required decisions in clear executive terms. • Mentor Principal and Senior Engineers, build communities of practice and raise engineering capability across regions rather than delivering only through individual contribution. Education & Professional Qualifications • Degree in a technology or engineering discipline, or equivalent practical experience (e.g., Computer Science, Software Engineering). • Reliability or platform certifications desirable (e.g., a recognised cloud certification, Certified Kubernetes Administrator, or ITIL 4 for incident and problem practice). Job-Related Experience • Overall 15 years and 10+ years of experience in End User Computing, Mobility, Collaboration Platforms, or Workplace Technology. • 5+ years supporting enterprise-scale device management and productivity services. • Experience operating critical Microsoft 365 services and large endpoint estates. • Proven experience improving service reliability, operational performance, and user experience. • Experience implementing SRE principles within enterprise workplace technologies • Demonstrated accountability for globally distributed, 24x7, business-critical services and for decisions with material operational, regulatory, customer or financial impact. • Proven ability to influence Directors, Senior Directors and VP-level stakeholders, including presenting options, quantified risk, trade-offs and investment recommendations. • Experience governing strategic suppliers and complex service ecosystems, with exposure to substantial technology budgets or portfolios; direct budget ownership is desirable but not mandatory where strong investment influence is evidenced. • Track record of setting technical direction, leading through ambiguity and developing senior engineering capability across organisational and geographic boundaries. Technical Requirements • Strong working knowledge of: Microsoft Intune, Microsoft Entra ID , Microsoft 365, SharePoint Online, OneDrive for Business, Teams administration, Windows endpoint management, Mobile device administration (iOS, Android, Windows) • Hands-on experience with: PowerShell automation, Microsoft Graph API, Device lifecycle automation, Service monitoring tools, Endpoint Analytics, Automation and orchestration platforms. • Runbook development , Knowledge management , Service introduction governance , Continual Service Improvement (CSI) , Vendor and supplier management , Operational reporting and governance. • Identity architecture — Entra ID / Active Directory, hybrid join vs. cloud-native join trade-offs, conditional access design, SSO, certificate services, passwordless and FIDO2, and the endpoint's role in a zero-trust model. • Endpoint security architecture — EDR/XDR, BitLocker/FileVault and key escrow, application control (WDAC/AppLocker), privilege management, DLP, and secure baseline design (CIS/STIG/vendor baselines). • Application delivery — packaging strategy (Win32, MSIX, PowerShell app deployment), virtualisation, self-service catalogue design, and dependency management at scale. • Virtual desktop and cloud PC — Azure Virtual Desktop, Windows 365, Citrix/VMware Horizon; capable of a defensible build-vs-buy and cost-per-user analysis. • Mobile architecture — iOS and Android enterprise, BYOD vs. COPE control models, app protection Reliability & Operations • Experience in: Defining and managing SLOs and SLIs, Service health monitoring, Incident response and problem management, Operational readiness reviews, Capacity and performance management, Change risk assessment, Service resilience engineering. Operational Excellence • Runbook development, Knowledge management, Service introduction governance, Continual Service Improvement (CSI) , Vendor and supplier management, Operational reporting and governance. Skills/Background • Comfort operating inside a team that is not the reporting line, holding a central standard without formal authority. • Composure in live incidents, including deciding when to stop investigating and restore. • Discipline to pursue root cause after service is restored and attention has moved on. • Ability to coach engineers into reliability practice rather than policing them into it. • Judgement about which observability gaps matter and which are noise. • Willingness to automate away the work rather than becoming indispensable to it. #AGTech Skills Automation Development, CI/CD, Cloud Based Services, Configuration Management (CM), Data Center Infrastructure Management (DCIM), Disaster Recovery (DR), Endpoint Management, Financial Operations, Identity Access Management (IAM), Incident Management, Incident Response, Microsoft Dynamics 365 Finance and Operations, Operating Systems (OS), Performance Tuning, Ping Identity, Scripting, SRE Observability, System Monitors, Vulnerability Management Why GSK? Uniting science, technology and talent to get ahead of disease together. GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases – to impact health at scale. People and patients around the world count on the medicines and vaccines we make, so we’re committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people. Inclusion at GSK: As an employer committed to Inclusion, we encourage you to reach out if you need any adjustments during the recruitment process. Please contact our Recruitment Team at [email protected] to discuss your needs. Important notice to Employment businesses/ Agencies GSK does not accept referrals from employment businesses and/or employment agencies in respect of the vacancies posted on this site. All employment businesses/agencies are required to contact GSK's commercial and general procurement/human resources department to obtain prior written authorization before referring any candidates to GSK. The obtaining of prior written authorization is a condition precedent to any agreement (verbal or written) between the employment business/ agency and GSK. In the absence of such written authorization being obtained any actions undertaken by the employment business/agency shall be deemed to have been performed without the consent or contractual agreement of GSK. GSK shall therefore not be liable for any fees arising from such actions or any fees arising from any referrals by employment businesses/agencies in respect of the vacancies posted on this site. It has come to our attention that the names of GlaxoSmithKline or GSK or our group companies are being used in connection with bogus job advertisements or through unsolicited emails asking candidates to make some payments for recruitment opportunities and interview. Please be advised that such advertisements and emails are not connected with the GlaxoSmithKline group in any way. GlaxoSmithKline does not charge any fee whatsoever for recruitment process. Please do not make payments to any individuals / entities in connection with recruitment with any GlaxoSmithKline (or GSK) group company at any worldwide location. Even if they claim that the money is refundable. If you come across unsolicited email from email addresses not ending in gsk.com or job advertisements which state that you should contact an email address that does not end in “gsk.com”, you should disregard the same and inform us by emailing [email protected], so that we can confirm to you if the job is genuine. We are a global biopharma company with a special purpose – to unite science, technology and talent to get ahead of disease together – so we can positively impact the health of billions of people and deliver stronger, more sustainable shareholder returns – as an organisation where people can thrive. Getting ahead means preventing disease as well as treating it, and we aim to impact the health of 2.5 billion people around the world in the next 10 years. Our success absolutely depends on our people. While getting ahead of disease together is about our ambition for patients and shareholders, it’s also about making GSK a place where people can thrive. We want GSK to be a place where people feel inspired, encouraged and challenged to be the best they can be. A place where they can be themselves – feeling welcome, valued and included. Where they can keep growing and look after their wellbeing. So, if you share our ambition, join us at this exciting moment in our journey to get Ahead Together. Find out more on our career site.

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