Senior Platform Engineer

Salary: £26,000 - 66,000 per year

Requirements:

• We require extensive experience in designing, implementing, and supporting large-scale IT infrastructure and platform environments.
• We require a proven track record of leading complex technology projects and platform engineering initiatives.
• We require strong experience in incident management, including ownership of major incidents and driving root cause resolution.
• We require demonstrated experience in capacity planning, performance optimisation, and infrastructure scalability.
• We require experience providing technical leadership, mentoring engineers, and guiding engineering best practices.
• We require a solid background in server operating systems, distributed systems, and platform architecture.
• We require experience working with cross-functional teams to deliver technology solutions aligned to business strategy.
• We require the proven ability to manage and prioritise competing workloads and resource demands in a fast-paced environment.
• We require experience engaging with senior stakeholders and translating complex technical concepts into business language.
• We require experience contributing to strategic planning, roadmaps, and transformation programmes.
• We require working knowledge of Agile delivery methodologies and technology development lifecycles.
• We require demonstrated experience in driving process improvement and operational efficiency within platform teams.
• We require experience operating within regulated environments, with awareness of risk, compliance, and governance requirements.
• We require English language proficiency.
• We require strong leadership and mentoring skills, with the ability to guide and develop engineering teams.
• We require excellent communication skills, with the ability to clearly convey complex technical concepts to both technical and non-technical stakeholders.
• We require effective stakeholder management skills, with the ability to build relationships and influence at all levels of the organisation.
• We require strong decision-making and critical thinking, particularly in high-pressure or ambiguous situations.
• We require a high level of problem-solving ability, with a proactive and solution-oriented mindset.
• We require the ability to collaborate across teams, break down silos, and drive cross-functional alignment.
• We require strong planning and organisational skills, managing multiple priorities and deadlines effectively.
• We require adaptability and comfort with change, supporting transformation and continuous improvement initiatives.
• We require attention to detail combined with the ability to maintain a strategic, big-picture perspective.
• We require strong accountability and ownership, taking responsibility for outcomes and delivering results.
• We require resilience and composure under pressure, particularly during incidents or critical delivery periods.
• We require a commitment to continuous learning and innovation, staying current with industry trends and best practices.
• We require strong risk awareness and an ethical mindset, aligning with regulatory and organisational standards.
• We prefer a bachelors degree in computer science or a related field, or equivalent relevant work experience supported by professional certifications or licences.
• We prefer strong experience in vendor and third-party management, including performance oversight and contract engagement.
• We prefer knowledge of future digital technology and the ability to think big, listen to the market and customers, challenge ideas, and act quickly to improve and simplify.
• We prefer knowledge of effective planning techniques and the ability to contribute to operational, tactical, and strategic planning.
• We prefer knowledge of effective presentation tools and techniques to ensure clear understanding and explain complex technical concepts in simple, clear language.
• We prefer ability to simplify complexity and present ideas in a clear and accessible way.

Responsibilities:

• We lead and manage IT infrastructure work and resource demands, supplying necessary resources for new projects and work requests, and ensuring solutions align with our applications strategy.
• We consult with IT leadership and provide high-level advice on the strategic direction and priorities for the infrastructure function that underpins our IT estate.
• We handle strategic planning, day-to-day operations, delivery of new services and solutions, and capacity planning to ensure our IT infrastructure meets current and future organisational needs.
• We participate in incident response, diagnose and resolve platform-related issues, and implement preventative measures to minimise downtime.
• We undertake structure planning to ensure sufficient system capacity, timely renewal plans for obsolete or at-risk technologies, and that SLAs are met or exceeded.
• We resolve complex technical issues and provide senior technical leadership in response to performance bottlenecks in the platform infrastructure and applications.
• We communicate platform updates, recommendations, and roadmap plans to stakeholders, including leadership, product managers, and other teams.
• We actively manage vendor relationships, acting as the liaison between the business, IT senior management, and key vendors.
• We provide technical leadership, mentoring, and promote a culture of innovation, collaboration, and accountability within our platform engineering team.
• We manage appropriate contracts and monitor the performance of third-party contractors.
• We manage internal budgets.
• We manage teams responsible for developing and maintaining the significant estate of IT infrastructure that underpins our IT services.
• We promote good culture and behaviours personally and across the team in line with our risk framework.
• We identify, assess, manage, and report risks, taking proactive personal responsibility for doing the right thing in compliance with regulatory requirements and our frameworks and policies.
• We support the bank in meeting its business, legal, regulatory, and stakeholder obligations in respect of Financial Crime Compliance, including identifying, deterring, detecting, and disrupting money laundering, sanctions non-compliance, terrorist financing, bribery, corruption, and tax evasion risks arising from our activities.

Technologies:

• Cloud
• Incident Management
• Support
• Angular
• Big Data
• Blockchain
• Network

More:

We are Santander UK, evolving from a global, high-impact brand into a technology-driven organisation where our people are at the heart of our journey. We are driving a customer-centric transformation powered by innovation, collaboration, and bold thinking, with a mission to help more people and businesses prosper. Our Santander Digital Services team is our technology and operations function, with more than 7,000 people across 8 countries, developing and implementing financial solutions across on-premises and cloud-based platforms. This Senior Platform Engineer role is based in Milton Keynes or Glasgow within our Chief Information & Resilience Office. We offer a salary of 80,000 to 120,000 per annum depending on experience, 30 days holiday plus bank holidays rising to 31 days after 5 years, a 6,000 car allowance, company-funded private medical insurance, death-in-service and income protection cover, share plans, product discounts, wellbeing support, enhanced family leave, volunteering opportunities, and global growth opportunities. We work in a site-based hybrid pattern with at least 12 office days per month, and applicants must have the right to work in the UK.

last updated 36 week of 2026