David Bellerby

Highly accomplished Test Manager / QA Lead with 20+ years of experience leading end-to-end testing across large-scale transformation programmes, including CRM/ERP platforms (Salesforce Lightning, MS Dynamics 365 F&O) within complex, multi-system environments. Proven expertise in defining and owning test strategies, establishing governance frameworks, and driving full test lifecycle delivery across functional, integration, regression, UAT, and data migration testing. Extensive experience in leading cross-functional and multi-vendor teams, acting as the primary interface for 3rd party delivery partners, ensuring accountability for quality, timelines, and adherence to programme standards.

Strong track record of managing test planning, execution, defect governance, and stakeholder reporting, while remaining hands-on with test design, script execution, and UAT support. Demonstrates deep capability in Salesforce testing, API/integration validation (MuleSoft, Postman), and cloud-based platforms (AWS, Azure), with a strong focus on delivering high-quality outcomes in Agile/SAFe environments using tools such as Jira and Azure DevOps. Recognised for a structured, detail-oriented approach, strong leadership, and the ability to drive quality across complex delivery landscapes.

Test Manager – contract - IDS (Intelligent Delivery Solutions Ltd)

(2025-09 - 2025-10)

Santander UK

• Defined and documented the end-to-end test strategy, covering functional, integration, regression, and UAT testing aligned with programme objectives and quality gates.
• Led test preparation and execution activities, ensuring full coverage across business-critical workflows and system integrations.
• Managed defect lifecycle processes, including prioritisation, root cause analysis, fix validation, and retesting, ensuring timely resolution and high-quality delivery.
• Established and maintained test governance, tooling, and reporting, including detailed test status updates and test exit reports for senior stakeholders.
• Coordinated and led the test team, including testers and business UAT users, ensuring alignment with delivery timelines and stakeholder expectations.
• Collaborated closely with cross-functional teams and external stakeholders to ensure smooth execution of testing activities within a complex, multi-system environment.

QA Test Manager - The One Touch Switching Company

(2023-05 - 2024-09)

• Led QA governance and assurance for OFCOM's OTS Hub and BlueMarble CRM implementation (MySQL, WSO2 on AWS), enabling seamless UK broadband customer switching via B2B messaging.
• Test HPE OpsRamp a SaaS-based IT operations management (ITOM) platform. Test B2B message scenarios that provided, AI drive, machine learning, and intelligent automation.
• Defined and enforced end-to-end test strategy, covering functional, integration, regression, performance, and security testing across a complex, multi-system environment.
• Managed 3rd party testing vendors, ensuring delivery of high-quality test artefacts, adherence to timelines, and alignment with programme governance and quality standards.
• Performed hands-on UAT, validating end-to-end user workflows including onboarding, web portal integrations, billing, and account management processes.
• Developed and executed B2B testing strategy, including connectivity testing, test harness validation, message exchange, and production ramp-up activities.
• Led data migration testing, including pre- and post-migration validation, ensuring data integrity and successful business sign-off in collaboration with Product Owners.
• Utilised tools such as Jira, Postman, SQL, and Agile methodologies to manage test execution, defect tracking, and reporting.

Consultant Test Manager - NTT Data

(2021-08 - 2023-05)

• Virgin Media & O2: Led multiple squads and end-to-end testing teams for Salesforce CRM (Sales Cloud & Marketing Cloud) and Azure-based delivery, covering CPQ, quoting, ordering, contracting, and billing processes across complex, integrated systems.
• Defined and implemented comprehensive test strategies across functional, integration, regression, and UAT phases, ensuring full coverage of end-to-end business processes.
• Collaborated with cross-functional teams including Salesforce architects, developers, and business stakeholders to resolve defects, validate requirements, and ensure high-quality delivery.
• Insolvency Service: Defined the test approach for a large-scale MS Azure and Dynamics 365 F&O ERP replacement programme, managing both manual and automation testing teams (C#, EasyRepro) and overseeing SQL-based test data preparation.
• Delivered both programmes within a SAFe Agile framework, utilising JIRA for test management, defect tracking, and reporting.
• Actively involved in test planning, as well as hands-on test script creation and execution within scrum teams, ensuring alignment with sprint goals and quality standards.

FTC Test Manager - Foresters Financial

(2020-02 - 2021-09)

• Directed end-to-end testing for Salesforce Financials and Marketing Cloud implementation, integrated with MuleSoft APIs, ensuring seamless API integration, data synchronisation, and support for RLM (Revenue Lifecycle Management) workflows.
• Defined and executed test strategies covering functional, integration, regression, and UAT phases, validating complex business processes across Salesforce and connected systems.
• Managed functional and UI testing, data validation, and payment processing workflows including BACS and CHAPS, ensuring accuracy, compliance, and system reliability.
• Led end-to-end business acceptance testing (UAT), including test case creation, execution, defect triage, and collaboration with business stakeholders for successful sign-off.
• Collaborated closely with 3rd party delivery teams, ensuring alignment on testing standards, quality benchmarks, and timely defect resolution.
• Utilised tools such as Azure DevOps, Postman, SQL, and Agile Scrum methodologies to manage test execution, defect tracking, and reporting.

Contract Test Lead - Lloyd's of London

(2019-04 - 2019-12)

Scope included treaty, bordereaux, premium and claims settlements message exchange

• Managed integration and migration testing for an Azure PaaS-based messaging platform, ensuring seamless data flow and system interoperability across complex, multi-system environments.
• Defined and executed test strategies covering integration, data migration, and reconciliation testing, ensuring accuracy and consistency across downstream systems and data warehouses.
• Performed hands-on testing of B2B APIs using Postman, validating ACORD message standards, data exchanges, and end-to-end business workflows.
• Led data migration validation activities, including reconciliation between legacy and target systems to ensure data integrity and compliance.
• Collaborated closely with 3rd party development teams, ensuring alignment on test execution, defect resolution, and delivery timelines while maintaining strong quality governance.

Contract Test Lead - Willis Towers Watson

(2017-12 - 2018-12)

• Led testing for the upgrade of an Oracle PL/SQL-based pensions product, ensuring stability and accuracy of complex backend workflows and business calculations.
• Designed and executed BDD test scripts using Gherkin with Jira Zephyr, enabling clear traceability between business requirements and test scenarios.
• Performed functional, integration, and regression testing, validating end-to-end business processes and system enhancements.
• Collaborated within an Agile Scrum environment, aligning testing activities with sprint cycles and delivery milestones.
• Integrated testing within CI/CD pipelines, supporting continuous testing, faster feedback loops, and improved release quality.

Test Manager - Financial Services Compensation Scheme

(2016-07 - 2017-07)

• Established a centralised test team and implemented a comprehensive test governance framework, standardising testing processes, reporting, and quality controls across multiple workstreams.
• Defined and executed end-to-end test strategies covering functional, integration, regression, and UAT phases, ensuring alignment with programme objectives and delivery timelines.
• Managed testing activities for claims portals, CRM systems (Siebel), and complex banking integrations, validating end-to-end business processes and data flows.
• Led cross-functional teams, including testers and business SMEs, ensuring effective coordination, defect management, and high-quality delivery.
• Collaborated with stakeholders and technical teams to resolve defects, clarify requirements, and ensure successful system implementation.

Senior Consultant (Multiple Projects) - Capita ITPS

(2010-06 - 2016-07)

• MOJ: Led testing for MS Dynamics ERP integration with a SharePoint portal, ensuring seamless data flow and system interoperability.
• Capita Children Services: Delivered data migration testing for SIMS8 school database to AWS cloud, ensuring data integrity.