Arnab Majumder
Test Manager @Cognizant
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WORK HISTORY
Test Manager @Cognizant
London, GB
Defined and implemented end-to-end QA strategy covering functional, integration, UAT, OAT, performance, resilience, and release readiness testing.Led testing across SAP Hybris BackOffice, SmartEdit, Gigya, and headless Commerce Cloud architecture.Managed cloud upgrade validation, regression coverage, and production cutover testing delivering zero-defect go-live outcomes.Led integration testing for payment systems including Adyen and Zeta, covering checkout, refunds, 3DS authentication, and failure scenarios.Delivered end-to-end loyalty integration testing using Mozido including account linking, accrual, and redemption workflows.Introduced AI-assisted QA workflows using Claude agents, MCP tooling, and GitHub Copilot to improve test generation, automation maintenance, and defect triage efficiency.Built programme-level quality dashboards and evidence-based go/no-go reporting using Jira and QTest.Coordinated testing across multiple vendors, architecture teams, and distributed delivery streams in hybrid cloud environments.
EDUCATION
West Bengal University of Technology, Kolkata
Bachelor of Technology - BTech, Computer Science
SKILLS
ABOUT ARNAB MAJUMDER
Test Manager | Driving Quality with AI, Automation & Cloud EngineeringI’m a Test Manager with 14+ years of experience helping engineering teams ship reliable, secure and high-performing products across retail, banking, airline and enterprise environments. Over the years I’ve moved from being a hands-on automation engineer into leading multi-stream QA programmes—while still staying close enough to the technology to solve problems with my own hands when needed. What drives me is simple: building quality cultures where teams feel confident to release. I’ve led testing across E2E, UAT, performance, resilience, cloud migration and pre-production cycles, often for large multi-million-pound programmes. I enjoy shaping test strategies, aligning with architects and product teams, managing suppliers, and making sure the right level of testing happens at the right time. On the technical side, I’ve grown up with automation—Selenium, Playwright, Appium, RestAssured, Java, CI/CD pipelines and cloud/device labs. I’ve also built frameworks from scratch, improved flaky tests, and guided teams on long-term automation strategy and adoption. In recent years, I’ve been heavily involved in AI-driven quality engineering. I’ve used tools like MCP, GitHub Copilot, A2A and LLMs to auto-heal failing automation scripts, generate test ideas, cluster defects, perform RCA, and highlight early defect-prone areas. This has helped teams reduce cycle time and focus on higher-value testing. I also bring solid experience across Azure and GCP cloud migrations, validating microservices, identity flows, APIs and distributed systems using cloud-native logs and monitoring tools. I’ve run test operations during cloud cutovers, resilience tests, and performance validations. I’m at my best in roles where I can blend leadership, strategy and hands-on thinking—working with engineers, product managers and architects to improve quality, delivery confidence and engineering maturity.
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