Available to hire
I’m Sri Muthukrishnan, a Senior Test Consultant with 25 years of QA experience delivering end-to-end quality assurance across healthcare (NHS England), retail, logistics, finance, insurance, telecommunications, utilities, and digital platforms. I specialise in API, microservices, and cloud-based testing (AWS / Azure), with deep expertise in NHS data flows, HL7 FHIR interoperability, DCB0129 / DCB0160 clinical safety compliance, and GDPR. I have a proven track record of zero-defect go-lives on mission-critical, national-scale services used by millions of patients and users, with strong capabilities in performance engineering, automation frameworks, and risk-based testing across multi-supplier Agile programmes.
I lead QA governance and testing strategies across complex, multi-vendor programmes, mentoring teams, driving automation, and delivering reliable software that aligns with NHS standards and industry best practices.
Skills
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Language
English
Fluent
Work Experience
Senior Test Engineer at Aire Logic Limited
February 1, 2025 - PresentNational NHS digital vaccination platform supporting school-based immunisation delivery, handling high-volume cohort data, consent workflows, and real-time reporting across multiple clinical systems. Managed end-to-end test lifecycle covering consent workflows, cohort management, scheduling, and national immunisation reporting. Validated bulk data ingestion pipelines, event-driven notification workflows, and API/integration testing with NHS interoperability. Performed database-level validation and ensured compliance with NHS data governance, GDPR, and clinical safety standards DCB0129/DCB0160.
Automation Test Analyst at Aire Logic Limited
November 1, 2022 - October 31, 2024Automation validation for NHS Directory of Services and Urgent & Emergency Care systems. Validated PHP migrations, routing logic updates, data migration and reconciliation, API exposure, and multi-system interoperability. Built automated test suites (Rest Assured / Selenium / NeoLoad) and monitored system health with Splunk, Instana, and CloudWatch. Supported multiple NHS go-lives with robust NFT coverage and zero Sev1/Sev2 defects.
Test Lead at RJS Testing Solutions Limited
July 1, 2021 - October 31, 2022Led end-to-end QA across concurrent Agile projects for Graphnet - Photia GP Extract and Shared Care Records. Executed Azure integration testing (Service Bus, Functions, SQL Azure, Blob Storage) and API assurance for HL7 FHIR exchanges. Validated interoperability with EMIS Health and SystmOne, and managed non-functional testing across performance, load, and failover scenarios.
Test Lead at RJS Testing Solutions Limited
June 1, 2019 - June 30, 2021Large-scale SAP S/4HANA transformation for Lloyds Pharmacy and AAH. End-to-end O2C and P2P testing, test planning, and SAFe Agile delivery. Led Selenium-based automation and performance testing (LoadRunner) for SAP GUI/Web, and supported SOX & PwC GRC audits with comprehensive test evidence.
Senior Test Consultant – Performance Test Lead at Expleo Technology UK Ltd
February 1, 2017 - May 31, 2019 Nationwide rollout of ePoS and stock management for GK ePoS across retail pharmacy networks. Led volume and performance testing, validated hardware sizing, and ensured data population/consumption workflows performed at scale. Created reusable automation components and CI/CD integration, plus NFT validation for multi-stream delivery.
Senior Test Consultant – Delivery Manager at Expleo Technology UK Ltd
January 1, 2016 - January 31, 2017Digital transformation for Elevate Credit International focusing on customer onboarding, risk, and lending systems. Managed onshore/offshore QA teams, provided test estimates and capacity planning, and enforced ISO 9001 / ISO 27001 aligned QA standards.
Senior Test Consultant – Performance Test Lead at Expleo Technology UK Ltd
July 1, 2015 - December 31, 2015Led performance testing for ARM Holdings’ Digital Strategy Platform and Sitecore-based web ecosystem. Designed and executed load tests, created scalable automation components, and reported bottlenecks with actionable mitigations.
Senior Test Consultant – Technical Test Lead at Expleo Technology UK Ltd
November 1, 2013 - May 31, 2015Retail transformation for Morrisons: eCommerce, PoS, and manufacturing systems. Defined end-to-end test strategies, managed multi-site UAT, and led defect lifecycle; implemented HP QC/ALM governance and performance testing across OSB/EDI interfaces.
Test Lead at Bollington Insurance Brokers Ltd
February 1, 2011 - April 30, 2012Motor trade insurance portal upgrade, regression, and data migration testing. Implemented Selenium automation, managed defect lifecycle (Mantis/Trac), and led QA activities within Agile ceremonies.
Senior Quality Assurance Engineer at Plusnet plc
February 1, 2009 - January 31, 2011Billing and payment process enhancements, knowledge-based diagnostics, and customer reporting. Automated key user journeys with Selenium, performed end-to-end testing, and supported cross-team defect resolution.
Web Designer at Instant Photo UK Limited
April 1, 2007 - January 31, 2009Startup digital platform for event-based photo sales. Designed and developed responsive web pages, integrated e-commerce, and delivered client-proofing systems to accelerate turnaround.
Test Analyst at Capita IRISC
February 1, 2003 - March 31, 2007Government-led programme for large-scale personal injury compensation systems. Conducted data validation, ACID checks, and SQL-driven data migration testing; managed defects and stakeholder communications.
Web Designer at Unitech Limited
January 1, 2001 - January 31, 2003Web design and development for corporate sites; delivered cross-browser compatible interfaces and optimised user experiences.
Education
MSc Computer and Network Engineering at Sheffield Hallam University
January 11, 2030 - January 1, 2008BEng Computer Science and Engineering at Madurai Kamaraj University
January 11, 2030 - January 1, 2001Qualifications
ISTQB Certified Tester Advanced Level - Test Manager
January 11, 2030 - April 25, 2026ISTQB Certified Tester Advanced Level - Technical Test Analyst
January 11, 2030 - April 25, 2026ISTQB Certified Tester Foundation Level
January 11, 2030 - April 25, 2026SCRUM MASTER - IScrum Alliance Certified SCRUM Master
January 11, 2030 - April 25, 2026SCRUM Master
January 11, 2030 - April 25, 2026SCRUM Developer
January 11, 2030 - April 25, 2026HP Enterprise Accredited Technical Professional - LoadRunner v12
January 11, 2030 - April 25, 2026AWS Certified Developer Associate
January 11, 2030 - April 25, 2026AWS Certified SysOps Administrator Associate
January 11, 2030 - April 25, 2026AWS Certified Solutions Architect Associate
January 11, 2030 - April 25, 2026AWS Certified Cloud Practitioner
January 11, 2030 - April 25, 2026AXELOS Certified PRINCE2 Foundation & Practitioner Certificate in Project Management
January 11, 2030 - April 25, 2026Microsoft Certified System Engineer in Microsoft Windows Server 2003
January 11, 2030 - April 25, 2026Cisco Certified Network Associate Routing and Switching
January 11, 2030 - April 25, 2026Industry Experience
Healthcare, Professional Services, Government, Retail, Software & Internet, Transportation & Logistics
Skills
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