Mainframe Test Plan Lead

Purview is a global leader in IT-Engineering and Talent Solutions, trusted by Fortune 500 and mid-market clients across 21+ countries. Headquartered in Edinburgh, with delivery center's in India, our 1,200+ professionals drive meaningful digital transformation worldwide.

As a certified Ethnic Minority Business and Premier Member of MSDUK, we proudly blend diversity with deep technical expertise to deliver results that matter.

We’re currently hiring for the below role with one of our valued clients. If it aligns with your experience and aspirations, we’d love to hear from you!

Role:Mainframe Test Plan Lead

Location: Anywhere in UK

Job type:( Fully Remote)

Job Description:

Own and drive the end-to-end test planning for a mainframe product migration programme, ensuring a robust, risk-based, and audit-ready test approach across all test phases and stakeholders (delivery teams, vendors, operations, and business).

Key responsibilities

• Define and maintain the overall test strategy and master test plan (phases, entry/exit criteria, environments, data, tooling, defect management, reporting). • Build and manage an integrated test schedule aligned to programme milestones, cutover, and release plans.

• Lead risk-based test planning (scope, prioritisation, coverage, non-functional testing) with clear traceability to requirements and migration risks.

Coordinate test phases:

SIT, System/Integration, Regression, UAT support, Performance/Volume, Resilience/DR, Security (as applicable), Dress rehearsals / cutover testing.

• Define and govern test data approach (masked production-like data, synthetic data, data refresh cycles, reconciliation needs).

• Plan and coordinate environment readiness (mainframe regions/LPARs, middleware, interfaces, batch windows, stubs/simulators).

• Establish defect triage cadence, severity model, and quality gates; ensure timely resolution and retest.

• Produce clear test reporting (progress, coverage, defects, risks/issues, go/no-go recommendations).

• Drive stakeholder alignment across dev, infrastructure, ops, business SMEs, and third parties; chair test planning and readiness forums.

• Ensure evidence and controls are in place for audit/compliance (test artefacts, approvals, sign-offs).

• Support migration assurance: parallel runs (if used), reconciliation testing, batch/control totals, and post-migration verification. Deliverables (typical)

• Product Test Strategy & Master Test Plan

• Integrated test schedule and resourcing plan

• Test governance pack (RAID, RACI, comms cadence, quality gates)

• Environment & test data readiness plan

• Phase-level test plans (SIT/UAT/NFR/cutover rehearsals)

• Test execution dashboards and go/no-go criteria

• Test closure report and evidence catalogue Required experience

• Proven test planning leadership on mainframe migrations (e.g., z/OS, COBOL, CICS, DB2, IMS, MQ, batch/JCL) and complex interface landscapes.

• Strong understanding of batch cycles, end-of-day processing, data migration/reconciliation, and operational constraints.

• Track record creating risk-based test approaches and running test governance at programme scale.

• Comfortable working with multiple delivery teams and vendors; excellent stakeholder management. Tools / methods (describe as “experience with”)

• Test management: JIRA and zephyr

• Defect management and reporting: JIRA/ServiceNow/Confluence/Excel

• Familiarity with automation frameworks is a plus (not mandatory), and with performance tooling where relevant. (LRE, TDM and SV) Key skills & behaviours • Structured planner, pragmatic and delivery-focused; strong dependency management

• Clear written communication and executive-level reporting

• Confident facilitator in forums; calm under pressure during dress rehearsals/cutover