Mainframe DB2 System Specialist £50,000 to 67,000 GBP Bonus Hybrid WORKING Location: Glasgow, Scotland - United Kingdom Type: Permanent Mainframe DB2 System Specialist Location: Greater Manchester or Glasgow (2 days per week on your closest site) Contract: Permanent Salary: Up to £67,000 Bonus Sponsorship: Not available The Opportunity We're looking for a Mainframe DB2 System Specialist to join a high-performing engineering function supporting large-scale, mission-critical systems. You'll work on complex infrastructure platforms that operate at massive scale-bringing expertise, precision, and a passion for automation to keep environments resilient, secure, and future-ready. This is an opportunity to work on systems processing billions of transactions, where performance, stability, and engineering excellence are essential. What You'll Be Doing Infrastructure Engineering Build, maintain, and optimise enterprise-grade infrastructure platforms Select and implement technologies that maximise performance and efficiency Incident Management Monitor infrastructure performance and proactively identify issues Use data-driven approaches to reduce MTTR and improve reliability Automation Automate repetitive tasks to reduce manual effort Apply scripting and coding practices to drive operational efficiency Security Implement secure configurations and protect systems from vulnerabilities Ensure hardware, software, and data environments operate securely Collaboration Work alongside engineers, architects, and product teams Align infrastructure decisions with wider business objectives Continuous Learning Stay current with industry trends, tooling, and best practices Contribute to internal technology communities What You'll Bring Essential Strong experience installing, maintaining, and upgrading IBM DB2 and related tools (DB2 CA, DB2 Connect, Data Studio) Solid knowledge of TSO, JCL, REXX, SQL and core mainframe OS tools Several years of hands-on DB2 systems programming experience Strong understanding of performance tuning and monitoring Highly Valued Experience with DevOps tooling (VS Code, Db2 Developer Extensions) Exposure to z/OSMF Familiarity with Broadcom and IBM Db2 tools Knowledge of Db2 internals and RACF security Role Purpose To ensure core infrastructure remains reliable, secure, and scalable. You'll apply strong engineering discipline, effective automation, and robust incident response to maintain high operational standards across essential systems and platforms. Reference: AMC-AQU-MDBDB Postcode: G1 3SL adqu