Lewis King

Administered and supported DB2 for z/OS (v12/v13) in a production mainframe environment, ensuring high availability and performance.

Managed DB2 subsystem configuration (ZPARMs/DSNZPARM, subsystem parameters) and coordinated controlled changes across environments.

Performed DB2 maintenance lifecycle: received fixes (PTFs/APARs), planned implementation windows, executed deployments, and validated post-change health.

Investigated and resolved DB2-related abends and failures (e.g., S04E/S0xx), using dumps, logs, and diagnostics to restore service quickly.

Monitored and tuned DB2 performance (buffer pools, EDM pools, thread/connection behaviour), reducing CPU and improving response times.

Led incident triage using SMF/logs/monitoring tools (e.g., Splunk), producing clear technical updates and root-cause summaries.

Resilience, recovery, and operations

Supported backup/recovery and restart processes, ensuring data integrity and meeting recovery objectives (RTO/RPO).

Maintained and validated DB2 operational readiness by checking BSDS, active logs, archive logs, and subsystem health indicators.

Implemented preventative controls (alerts, thresholds, runbooks) to reduce repeat incidents and improve on-call efficiency.

Utilities, change, and automation

Planned and executed DB2 utility activities (REORG/RUNSTATS/COPY/RECOVER and index maintenance) aligned to batch windows and service impact.

Produced and maintained high-quality documentation (Confluence/runbooks) for operators and support teams, improving consistency of recovery actions.

Automated routine checks/reporting using Excel scripting and basic Python, cutting manual admin time and reducing human error.

Worked within Agile/Scrum ways of working (sprint planning/retros), collaborating with app teams and infrastructure to deliver change safely.

• Followed technical documentation for accurate installation, maintenance and repair work.
• Used Netcool/ service now to track support tickets and document actions.
• Conducted server back-up and recovery operations in line with protocols.
• Worked on site swap events and clock change events for the Banks critical systems
• Perform level sets and phase ins through web270, WUI and HMC
• Developed detailed documentation of all procedures and configurations for future reference.
• Contributed to system design processes for optimal infrastructure setup.

• Undertook a significant role in the management of statutory Unpaid Work Orders and managed a caseload of individuals subject to Community Payback Orders with an unpaid work requirement
• Strict procedures were followed, so that the outcomes and standards for social work services are adhered to
• Ensuring compliance with the conditions of the Court order
• The post involves regular liaison with placement providers, maintaining case records, and completion of various reports.
• Reviewed and submitted court documents

• Responsibilities Include: Providing professional contact centre services to businesses across the UK, Inbound and outbound call handling & helpdesk services, Identifying customers' needs clarify information; research every issue and providing solutions and/or alternatives, Build sustainable relationships and engage customers by taking the extra mile, Frequently attend seminars to improve knowledge and performance level, Meet personal/team targets

• Responsibilities include: Providing professional customer service, Stock rotation and reordering, Cash handling, Complete and maintain accurate financial and stock records

• Responsible for planning, leading, and implementing core and non-core programs and experiences for children in a small group setting, Responsible for general safety and development, growth, and skill achievement of the participants in my group, Also included security of the camp and safety of the children