Senior z/OS Mainframe Infrastructure Specialist

Lloyds Banking Group; Greater London; Hybrid; GBP 84,000 - 93,000; Full time

Benefits offered by this job

Up to 15% pension contribution

Annual performance bonus

Share schemes

Discounted shopping

30 days holidays + bank holidays

Wellbeing initiatives & parental leave

Job summary

Lloyds Banking Group in London is seeking a Senior Infrastructure Specialist to lead IMS and Datacom services on the zMainframe estate. You will ensure reliability, security and performance while supporting major programmes and platform upgrades.

The role requires deep IMS expertise, experience with z/OS environments and collaboration across technical teams in a regulated banking setting. Hybrid working and on-call duties apply.

Qualifications

• : Extensive background as an IMS Systems Programmer in a z/OS Mainframe setting.
• : Demonstrated experience in installing, configuring, supporting, and maintaining IMS and Datacom products.
• : Experience supporting large-scale, business-critical production environments.
• : Strong diagnostic and problem-solving skills with experience managing complex technical incidents.
• : Knowledge of mainframe operational practices, change management and service management processes.
• : Experience working within highly regulated or enterprise-scale environments.
• : Effective communication and collaborator management skills, with the ability to collaborate across technical and non-technical teams.
• : A proactive approach and passion for delivering resilient, high-quality infrastructure services.

Responsibilities

• Delivering technical direction and expert insight for IMS and Datacom technologies within the zMainframe environment.
• Crafting, implementing, maintaining and improving infrastructure services in line with Group standards, policies and architectural principles.
• Ensuring systems remain secure, available, resilient and performant, meeting agreed service levels and operational objectives.
• Supporting infrastructure projects, platform upgrades and technology refresh activities from planning through to implementation.
• Investigating and resolving complex incidents and problems, identifying root causes and implementing long-term solutions.
• Participating in an on-call rota and providing out-of-hours support when required.
• Collaborating with infrastructure, engineering, architecture and application teams to deliver reliable and scalable services.
• Finding opportunities for automation, optimisation and continuous improvement across the platform estate.
• Contributing to technical documentation, standards, knowledge sharing and mentoring activities.

Skills

IMS Systems Programmer

z/OS Mainframe

IMS & Datacom products

Incident management

Mainframe operations

Change management

Regulated environments

Communication

Collaboration

Automation scripting (desirable)

Tools

Datacom

z/OS

Automation scripting

Job description

Lloyds Banking Group in London is seeking a Senior Infrastructure Specialist to lead IMS and Datacom services on the zMainframe estate. You will ensure reliability, security and performance while supporting major programmes and platform upgrades.

The role requires deep IMS expertise, experience with z/OS environments and collaboration across technical teams in a regulated banking setting. Hybrid working and on-call duties apply.