SIT Test Manager

Project overview

SIT Test Manager

Realtime Recruitment Milton Keynes, England, United Kingdom (Hybrid)

SIT Test Manager - Day Rate Contract - Outside IR35

You will lead the planning, coordination, governance, and delivery of System Integration Testing (SIT) across EfC. Your goal is to make sure integrated business processes, interfaces, data flows, and cross-system dependencies work as designed before the programme moves on to end-to-end testing and UAT.

Key relationships: Workstream Test Leads, supplier test managers, environment and release teams, defect management, data teams, business analysts, architects, and the Performance, OAT, and UAT Test Managers.

Key accountabilities

Essential experience

Technical and behavioural skills

• Own the SIT strategy, plan, estimates, schedule, scope, entry and exit criteria, and test completion reporting.
• Coordinate integrated test coverage across Core DRS, SAP ERP, SAC, Logistics, Data Platform/Power BI, and shared services.
• Make sure requirements, process flows, interfaces, contracts, data mappings, and non-functional dependencies can be traced to SIT scenarios.
• Direct test preparation, execution, evidence capture, daily reporting, and defect triage across programme and supplier teams.
• Confirm that environments, test data, access, stubs, interfaces, and deployment baselines are ready and under control.
• Manage risks, assumptions, issues, and dependencies, and escalate any threats to milestones or quality along with clear recovery actions.
• Apply defect severity, priority, lifecycle, and retest standards consistently, including ownership across workstreams.
• Give evidence-based recommendations on whether SIT is ready to progress into E2E, performance, OAT, or UAT.
• Substantial experience managing SIT on complex enterprise transformation programmes.
• A proven record of delivery across multiple suppliers, integrated platforms, APIs, batch processes, data migration, and reporting solutions.
• Experience with risk-based testing, requirements traceability, defect governance, and formal entry and exit controls.
• Strong working knowledge of Jira and/or Azure DevOps, test management tools, dashboards, and management reporting.
• Strong capability in integration testing, test design, data validation, and defect analysis.
• Structured approach to planning and dependency management, with sound analytical decision-making.
• Clear leadership, facilitation, and communication across technical, supplier, and business stakeholders.
• Calm, pragmatic, and outcome-focused, even under delivery pressure.

Requirements

What success looks like

For more information on this role please apply within with up to date CV

• Essential: ISTQB Foundation or equivalent.
• Desirable: ISTQB Test Manager, Agile, programme delivery, or relevant technical certifications.
• Critical integration paths are covered, traceable, and executed to plan.
• SIT entry and exit decisions are backed by accurate evidence and transparent residual risk.
• Defects are found early, quickly assigned an owner, and resolved within agreed service levels.
• Downstream phases receive stable builds, reliable data, and as few avoidable defects as possible.

Project details

• Start: ASAP
• Duration: 12 Months
• Location: Milton Keynes, UK, GB