
Core Banking Infrastructure Engineer - BA4
Barclays · Posted Oct 16
Banking, credit card, corporate, investment banking, and wealth management services
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About the role
Barclays TESCO Bank's technology function supports and enhances its core banking platforms, with a focus on resilience, performance, and integrity of business-critical systems. The role sits within infrastructure engineering, covering CI/CD automation, containerisation with Kubernetes/EKS, change and release management, and incident/problem resolution in a regulated banking environment. The engineer provides L2/L3 application support, drives automation with GitLab, Jenkins, Terraform and Ansible, and coordinates with infrastructure, database, and middleware teams on environment, capacity, and resilience activities.
What you will do
- 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.
Skills used in this role
What the employer is looking for
- 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 and Ansible, Kubernetes, Nexus, Python or PowerShell or Any scripting Language Windows/RHEL
- Strong understanding of ITIL practices (Incident, Problem, Change Management)
- Experience working within regulated financial services environments.
- Ability to manage competing priorities in a high-pressure production support environment.
- Effective communication and stakeholder management skills
- Continuous learning mindset to adapt to evolving banking technologies and platforms.
Preferred qualifications
- Datadog
- Snyk or SonarQube
- ServiceNow/JIRA/Confluence
- Java
- Safe Agile
- Knowledge Fiserv suite of applications
Benefits and support
- Compensation and benefits are detailed in the job posting
About Barclays
Barclays is a British multinational universal bank that provides consumer, corporate, and investment banking, as well as wealth management services. Tracing its origins back to 1690 in London, the institution operates globally to serve millions of retail and institutional clients. The bank leverages cutting-edge technology and digital platforms to drive operational efficiency across its international network.
- Industry
- Banking
- Company size
- 93000+ employees
- Founded
- 1690
- Location
- London, United Kingdom
- Funding stage
- Public Company
Leadership
Group Chief Executive
Group Finance Director
Group Chief Operating Officer
Recent coverage
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