We're looking for an Mainframe Operations Manager to take ownership of our production environment, ensuring key platforms and workloads run reliably, securely, and predictably. Reporting to the IT Service Operations Manager, the role sits on the Service Operations Leadership Team and leads mainframe operations, enterprise scheduling, production control and operational automation, providing the operational backbone for service-owning technology teams. What you'll be doing:

Lead day-to-day production operations, ensuring scheduled workloads and critical services run reliably, securely and to agreed standards.
Own operational readiness across supported services, maintaining effective runbooks, procedures, support models and operational controls.
Lead production support during incidents and major incidents, coordinating technical recovery and acting as a trusted deputy for Incident and Problem Management leadership.
Drive problem resolution and continual improvement, identifying root causes and reducing recurring issues through strong operational discipline.
Champion operational resilience, ensuring recovery procedures, testing activities and readiness practices remain effective.
Drive automation initiatives that reduce manual effort, improve stability and increase operational efficiency.
Define and maintain production governance, operational controls and service readiness requirements for changes entering live service.
Use operational insight, performance data and trends to improve service quality, resilience and production outcomes.
Partner with technology teams and third-party providers to manage production risk, dependencies and service restoration activities.
Lead, coach and develop a high-performing operations team while fostering a culture of accountability, learning and continuous improvement.

Strong experience leading production or IT operations teams in a complex environment
Knowledge of mainframe operations, enterprise scheduling, and batch processing
Confidence working in incident and major incident environments, making decisions under pressure
A passion for automation and continuous improvement
Experience improving operational resilience and recovery practices
Strong analytical thinking, using data to drive decisions and improvements
Excellent collaboration skills, with the ability to influence across teams and partners
Awareness of risk, governance, and working in regulated environments (desirable)
Leads with clarity and builds high-performing, resilient teams
Stays calm and makes sound decisions-even in high-pressure situations
Thinks ahead, designing systems and processes with recovery and stability in mind
Sees opportunities to simplify through automation and smarter ways of working
Builds strong relationships and brings people together to solve problems

At Principality, belonging isn't just a value - it's how we work. When you join us, you're welcomed into a supportive, inclusive community where your home life, wellbeing, and individuality are genuinely respected. From flexible ways of working to benefits designed around you, we're committed to helping you feel comfortable, valued, and able to thrive.
Flexible hybrid working - Our award-winning approach gives you the flexibility to work from home and from the office. Collaboration matters to us, so you'll spend at least 8 days per month based in our Cardiff office.
A truly inclusive workplace - Proudly named in the 2025 Inclusive Top 50 UK Employers List, ranked 27th, recognising our ongoing commitment to inclusion and belonging.
Customer excellence you can be proud of - Winners of Double Gold Awards for Customer Satisfaction at the Fairer Finance Awards 2025 for both Savings and Mortgages.
Engaged, supported colleagues - Our colleague engagement scores consistently exceed 85%, reflecting a positive and supportive culture.
Wellbeing at the heart of what we do - Our Belong benefits package is designed to put our people first, supporting your physical, mental, and financial wellbeing.

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