BUK TESCO Bank - Core Banking Infrastructure Engineer - BA4

Job Description

Purpose of the role

To build and maintain infrastructure platforms and products that support applications and data systems, using hardware, software, networks, and cloud computing platforms as required with the aim of ensuring that the infrastructure is reliable, scalable, and secure. Ensure the reliability, availability, and scalability of the systems, platforms, and technology through the application of software engineering techniques, automation, and best practices in incident response.

Accountabilities

• •Build Engineering: Development, delivery, and maintenance of high-quality infrastructure solutions to fulfil business requirements ensuring measurable reliability, performance, availability, and ease of use. Including the identification of the appropriate technologies and solutions to meet business, optimisation, and resourcing requirements.
• •Incident Management: Monitoring of IT infrastructure and system performance to measure, identify, address, and resolve any potential issues, vulnerabilities, or outages. Use of data to drive down mean time to resolution.
• •Automation: Development and implementation of automated tasks and processes to improve efficiency and reduce manual intervention, utilising software scripting/coding disciplines.
• •Security: Implementation of a secure configuration and measures to protect infrastructure against cyber-attacks, vulnerabilities, and other security threats, including protection of hardware, software, and data from unauthorised access.
• •Teamwork: Cross-functional collaboration with product managers, architects, and other engineers to define IT Infrastructure requirements, devise solutions, and ensure seamless integration and alignment with business objectives via a data driven approach.
• •Learning: Stay informed of industry technology trends and innovations, and actively contribute to the organization's technology communities to foster a culture of technical excellence and growth.

Analyst Expectations

• •To perform prescribed activities in a timely manner and to a high standard consistently driving continuous improvement.
• •Requires in-depth technical knowledge and experience in their assigned area of expertise
• •Thorough understanding of the underlying principles and concepts within the area of expertise
• •They lead and supervise a team, guiding and supporting professional development, allocating work requirements and coordinating team resources.
• •If the position has leadership responsibilities, People 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.
• •OR for an individual contributor, they develop technical expertise in work area, acting as an advisor where appropriate.
• •Will have an impact on the work of related teams within the area.
• •Partner with other functions and business areas.
• •Takes responsibility for end results of a team’s operational processing and activities.
• •Escalate breaches of policies / procedure appropriately.
• •Take responsibility for embedding new policies/ procedures adopted due to risk mitigation.
• •Advise and influence decision making within own area of expertise.
• •Take ownership for managing risk and strengthening controls in relation to the work you own or contribute to. Deliver your work and areas of responsibility in line with relevant rules, regulation and codes of conduct.
• •Maintain and continually build an understanding of how own sub-function integrates with function, alongside knowledge of the organisations products, services and processes within the function.
• •Demonstrate understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.
• •Make evaluative judgements based on the analysis of factual information, paying attention to detail.
• •Resolve problems by identifying and selecting solutions through the application of acquired technical experience and will be guided by precedents.
• •Guide and persuade team members and communicate complex / sensitive information.
• •Act as contact point for stakeholders outside of the immediate function, while building a network of contacts outside team and external to the organisation.

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.

As a Service Engineer at Barclays TESCO Bank, where you will play a key role in the supporting applications end-to-end, enhancing capabilities, and delivery continuous improvement of core banking platforms. You will be responsible for ensuring the resilience, performance, and integrity of critical systems while contributing to strategic change and operational excellence within the technology function.

To be successful in this role, you will need experience in:

• •Application Support & Service Delivery
• Leading and Providing end-to-end L2/L3 support for core banking applications, ensuring adherence to service level agreements (SLAs) and operational KPIs. Proactively monitoring system health, managing incidents and service requests, and ensuring high availability of business-critical services.

Driving End to End Automation

Lead the implementation of end-to-end CI/CD automation using Gitlab, Jenkins and Nexus, reducing manual effort while improving deployment consistency, Security and release efficiency.

Containerisation, Kubernetes & EKS Engineering

Hands on proficiency in containerisation, including Docker and Kubernetes/EKS, with the ability to troubleshoot workloads, optimise cluster performance, and design/maintain Helm charts.

• •Maintenance & Continuous Improvement
• Supporting ongoing maintenance activities including defect resolution, patching, and platform upgrades. Driving continuous improvement initiatives to enhance application stability, performance, and scalability in line with Barclays’ strategic technology objectives.

• •Change, Release & Environment Management
• Managing application changes through the Barclays change governance framework, ensuring controlled and compliant deployments across environments. Supporting release activities with minimal disruption to production services.

• •Incident, Problem & Root Cause Analysis
• Leading incident triage, performing root cause analysis, and implementing permanent fixes. Contributing to problem management processes to reduce recurring incidents and improve system resilience.

• •Stakeholder Collaboration & Demand Support
• Working closely with business users, development teams, and infrastructure partners to manage demand, prioritise enhancements, and support delivery of the application backlog and strategic initiatives.

• •Operational Excellence & Process Optimisation
• Identifying opportunities to streamline processes, automate repetitive tasks, and implement best practices to improve operational efficiency and user experience.

• •Risk, Compliance & Controls
• Ensuring compliance with internal policies, regulatory requirements, and audit standards. Supporting risk management activities including controls monitoring, incident reporting, and documentation (e.g., RCSAs, records inventory).

• •Environment & Infrastructure Coordination
• Collaborating with infrastructure, database, and middleware teams to manage application environments, capacity planning, and performance tuning.

• •Business Continuity & Resilience
• Supporting disaster recovery planning, failover testing, and continuity processes to ensure minimal disruption to critical banking services.

Domain Banking & Financial Systems

Technical Skills AWS, GitLab, Jenkins, Terraform