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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Implementation Manager - Mainframe Product Migration - **Company:** NTT DATA - **Location:** London, UK (Remote available) - **Contract:** Permanent contract - **Skills:** Microsoft Excel, Confluence, JIRA, Customer Information Control System (CICS), Data Migration, IBM DB2, RAID, Job Control Language (JCL), Mainframes, Microsoft Project, Z/OS, Smartsheet, Servicenow, Control M - **Published:** September 24, 2026 - **Apply:** https://careers-inc.nttdata.com/talentcommunity/apply/1433059100/?locale=en_US ## About the Role * Proven Implementation/Cutover/Deployment Management on mainframe or large-scale legacy migrations. * Strong understanding of z/OS production operations constraints: batch cycles (JCL), scheduling (e.g., Control-M/CA-7), DB2/IMS considerations, CICS regions, interface dependencies, and resilience/DR practices. * Experience running dress rehearsals, coordinating cross-team cutovers, and leading go/no-go forums. * Working knowledge of ITIL-aligned change, release, and incident management in regulated environments. Key skills & behaviours * Excellent planning and dependency management; strong "get it done" execution bias. * Clear, calm leadership during high-pressure cutover windows. * Strong stakeholder management across technology, operations, business, risk/compliance, and suppliers. * Crisp written communication: executive updates, RAID, and runbook clarity. Tools/skills * Planning: MS Project/Smartsheet/Jira/Confluence * Change/ITSM: ServiceNow (or equivalent) * Reporting: Excel ## Description Role purpose: Plan, coordinate, and execute the end-to-end implementation of a Mainframe Product Migration into production, ensuring a controlled, compliant, and low-risk cutover. Own the integrated deployment/cutover plan, readiness, and go/no-go governance across technology, operations, business, and third parties., * Create and maintain the integrated implementation (deployment/cutover) strategy and plan covering scope, approach (big bang/phased), timeline, dependencies, and critical path. * Lead cutover planning: detailed runbooks, rehearsal plans, roles/responsibilities, communications, checkpoints, and contingency/rollback. * Coordinate release and change management activities (CAB submissions, implementation approvals, change records, stakeholder signoffs). * Drive environment and operational readiness: capacity, access, monitoring, scheduling/batch windows, support model, service transition. * Manage data migration implementation activities with clear sequencing, validation steps, reconciliation, and operational controls. * Orchestrate dress rehearsals / mock cutovers, capture lessons learned and harden runbooks. * Lead implementation governance: readiness reviews, RAID management, decision logs, and executive reporting. * Coordinate hyper care/post-go-live: incident triage, defect backlog prioritisation, stabilisation metrics, and handover to BAU. * Ensure alignment with risk/compliance/audit requirements (evidence packs, approvals, segregation of duties where required). * Manage third parties/vendors involved in deployment (e.g., infrastructure, platform, data, app support, schedulers). Deliverables (typical) * Implementation strategy and Integrated Cutover Plan * Detailed cutover runbooks (minute-by-minute where needed) * Rehearsal plans and rehearsal outcomes/actions log * Change/CAB artefacts and approval pack * Readiness criteria, go/no-go checklist, and decision log * Hypercare plan, support model, and BAU handover pack * Implementation closure report and lessons learned ## Related Videos - [Unlocking the Power of the Mainframe: Developing modern applications on z/OS](https://www.wearedevelopers.com/videos/764-unlocking-the-power-of-the-mainframe-developing-modern-applications-on-z-os) - [GitOps for the people](https://www.wearedevelopers.com/videos/461-gitops-for-the-people) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [A Developer's Framework for Any Tool Migration](https://www.wearedevelopers.com/videos/2035-a-developer-s-framework-for-any-tool-migration) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Now is the time for industrialized software development](https://www.wearedevelopers.com/magazine/601-now-is-the-time-for-industrialized-software-development) - [Should Tech Managers Be Developers First? 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