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Lead Data Tester

· Job Posted May 30, 2026
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Job Description

We are partnering with a global P&C insurance client leading a large-scale transformation programme to source an experienced Lead Data Tester with strong ETL Testing, SQL, and London Market Reinsurance expertise. This is a fantastic opportunity for an experienced Lead Data Tester to play a pivotal role in shaping the quality and integrity of complex reinsurance data solutions within London Market. Working across high-profile transformation initiatives, you will have the chance to lead critical testing activities, influence delivery standards, and work with cutting-edge data and reporting technologies in a highly collaborative environment. Immediate start available.

Job Responsibility

  • Lead and manage testing activities across large-scale data transformation programmes
  • Perform hands-on ETL and backend testing using SQL and data profiling techniques
  • Validate complex insurance data flows, mappings, and reconciliation processes
  • Conduct data migration testing, including legacy-to-target validation and defect analysis
  • Create test analysis, test scenarios, test conditions, and execution plans from business and technical documentation
  • Manage and prepare test data for functional and non-functional testing activities
  • Execute integration testing across multiple systems and platforms
  • Produce testing reports, metrics, and dashboards using Power BI, SQL Reporting, or equivalent reporting tools
  • Identify, manage, and escalate risks, dependencies, and data quality issues proactively
  • Work closely with stakeholders to ensure successful delivery across programme milestones

Requirements

  • Strong experience within London Market Reinsurance testing
  • Excellent understanding of: Contract structures, Bordereaux, Insurance data mappings and Regulatory reporting requirements
  • Proven hands-on ETL testing experience
  • Strong SQL and backend data testing capability
  • Experience working on complex transformation programmes with multiple system integrations
  • Solid understanding of: Reconciliation testing, Data migration testing, Data quality validation and Defect analysis
  • Experience across both functional and non-functional testing
  • Ability to independently generate reports using Power BI, SQL Reporting, or similar reporting tool
  • Easy access to London for hybrid working
  • Available to start within 4-6 weeks – immediate preferred
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