IBMi Administrator

Service Express is hiring: IBMi Administrator

Are you a talented professional with a passion for IBMi systems? Service Express is looking for an experienced IBMi Administrator to join our team. In this role, you’ll provide expert-level support to our customers and internal teams, helping deliver outstanding service across our software and support contracts. You’ll be a key technical resource for OS400/AS400 systems and virtualisation technologies, supporting both our Sales and Services teams.

• Take ownership of 2nd and 3rd level OS400 technical support issues, driving them to resolution.
• Lead customer transition activities, following defined processes to ensure smooth delivery.
• Attend customer meetings and present OS400 technical solutions aligned with contracted services.
• Design high-level technical solutions and support the Client Services Team in their delivery.
• Provide expert assistance to customers and internal teams on OS400 and virtualisation technologies.
• Support pre- and post-sales activities related to OS400 services.
• Deliver professional services for iSeries systems as needed.
• Stay current with OS400 updates and emerging technologies.
• Participate in Disaster Recovery testing and full invocations when required.
• Resolve support calls and attend customer sites as necessary.
• Ensure best practices and compliance with internal protocols, including security and regulatory standards.
• Consult on High Availability solutions and configure Quick/EDD & Mimix applications.
• Follow change control processes for all customer system modifications.
• Support pre-sales engagements with strong OS400 technical demonstrations.
• Share OS400 knowledge across the team to build collective expertise.
• Train operational staff and assist with OS400-related queries.
• Undertake agreed training to maintain up-to-date platform knowledge.
• Automate iSeries systems using Systems Management software.
• Attend seminars and presentations to enhance daily operations and efficiency.
• Collaborate with Service Delivery Managers to provide technical insights to customers.
• Participate in a 24/7 on-call support rota for contracted services and software support.

• Proven experience with OS400 (V5R3 through V7R4).
• Strong knowledge of High Availability tools (Mimix, iCluster, Quick/EDD).
• Experience with Systems Management software and iSeries automation.
• Familiarity with Power Systems hardware and SAN integration.
• Deep understanding of VTL technologies.
• Capacity planning and performance analysis skills (iDoctor DBMON desirable).
• Advanced CL programming and SQL skills.
• High-level security expertise on IBMi.
• Strong knowledge of LPAR, HMC, and system builds using native OS commands and BRMS.
• Experience with OS400 backup software including BRMS.
• Skilled in troubleshooting, OS upgrades, and PTF management.
• Excellent problem-solving and analytical abilities.
• Ability to transform and automate repetitive tasks.
• Strong communication skills, both internally and externally.
• Confident in customer-facing roles and technical presentations.
• A collaborative mindset and willingness to support team members.

• Up to £65,000 annual salary
• Remote position
• Additional pay for on-call rota
• Overtime pay
• Lifestyle benefits including Employee Assistance Program, Life Assurance, Private Medical Insurance, and more
• Paid volunteer hours
• A collaborative company culture focused on delivering exceptional experiences for employees and customers