Harveer Tiwana

Nansen are a blockchain analytics company empowering investors through data to make financial returns. Working with over 12 blockchains and 300 million addresses labelled, Nansen is a category leader.

• Joined as the second QA hire, developing the company’s QA strategy and establishing a robust test automation framework using Cypress, TypeScript, and GitHub Actions.
• Spearheaded the formation of the Developer Experience team post-restructuring, leading QA, SRE, and Security sub-teams.
• Grew the QA team from the ground up to 7 engineers; owned hiring, career development, and performance reviews in collaboration with HR.
• Implemented CI/CD-integrated automation pipelines, improving deployment frequency and reducing cognitive overhead for developers.
• Introduced CLI tooling and DevEx metrics leveraging DORA and SPACE frameworks to measure and enhance engineering satisfaction and efficiency.
• Embedded AI-driven feedback cycles to optimize QA and DevEx processes.
• Collaborated with engineering leadership to ensure technical consistency across Python, TypeScript, and GCP-based systems.
• Oversaw a wide spectrum of testing including functional, non-functional, load, and security testing with tools like Grafana, PagerDuty, SonarCloud, and Kubernetes.

An award winning renewable energy supplier providing tariffs, solar panels, heat pumps and other energy products to a massive UK market.

• First QA hire responsible for defining and implementing the QA strategy during rapid product changes and Covid-era challenges.
• Built and led a team of 5 QA engineers; championed an embedded QA model to foster a test-first culture across engineering.
• Integrated TDD practices and embedded functional and non-functional testing using Karate, Cypress, and Gatling.
• Introduced security testing protocols to support product launches with a secure and cost-effective posture.
• Used Kubernetes to manage test environments and scale testing operations efficiently.
• Improved release confidence by integrating testing into the SDLC, reducing production bugs to manageable levels.
• Promoted developer satisfaction and quality ownership through a collaborative, test-driven mindset.

A US based decentralised protocol securing transactions and offering banking products to retail and business customers with APY in return as loans.

• Defined and led QA strategy for a decentralized finance product on Ethereum, targeted at US banking institutions.
• Worked closely with offshore teams to implement manual regression and automation workflows, enabling the successful launch of a public Lending product.
• Introduced CI/CD best practices to support daily releases and managed production issue triage at enterprise scale.
• Contributed to economic risk assessment and security validation as part of product readiness.
• Gained hands-on experience with DeFi protocols and blockchain testing in a fast-paced, cutting-edge environment.

Tools: Testrail, Playwright, JavaScript, AWS, Security & Performance Testing

Thought machine are a cloud native core banking company that have revolutionised the banking domain with their software that runs at scale for the largest banks in the world. Scale up.

• Led QA strategy and test management for blockchain DeFi and core banking products, delivering solutions for clients like HSBC and JP Morgan.
• Conducted hands-on manual and automated testing across multi-million-pound banking systems, ensuring robust and reliable releases.
• Developed and scaled in-house test automation tools, running 2000+ tests daily, significantly boosting test coverage and speed.
• Established a production bug triage process across 10+ clients, backed by metrics to track fix deployment and QA impact.
• Fostered a strong quality culture through monthly QA forums, weekly newsletters, and cross-team quality discussions.
• Collaborated with cross-functional teams to refine complex requirements and embed QA at every stage of the SDLC.

Tools: Python, Selenium, Java, AWS, GCP, Grafana, Load Testing

Elemental concept are a consultancy and managed services provider offering innovation digital solutions and creations.

• Created Jenkins CI jobs and set up SonarQube to support DevOps automation and code quality feedback.
• Delivered test reporting across QA, UAT, and Prod environments; supported testing for web/mobile, big data, blockchain, and AI solutions.
• Tested blockchain audit trail POCs using Hyperledger Fabric and Quorum, leveraging tools like Truffle and Ganache.
• Contributed to testing ML models and complex systems spanning microservices, SQL/NoSQL, and hybrid cloud/legacy platforms.
• Selected for the Technology Steering Group (TSG) to shape SDLC best practices.
• Mentored 2 junior QAs and 1 intern, providing structured learning plans and guidance toward automation.

Tools: SerenityBDD, Cucumber, BDD, Jenkins, Kubernetes, AWS, GCP, Grafana, Load Testing, AI, Big Data

Motion Picture Solutions are a global film services company specialising in digital cinema mastering, content localization, and distribution.

• Led QA for a microservices-based movie distribution and encrypted key tracking system.
• Developed functional and API test frameworks using Java, Cucumber, Selenium, REST Assured, and Postman for rapid regression and validation.
• Enabled consistent development environments via Docker and managed CI pipelines using Jenkins for automated build/test cycles.
• Collaborated from requirements stage with BAs and PMs, promoting BDD practices for well-defined user stories and sprint planning.
• Communicated directly with clients to identify quality issues and deliver improvements.
• Trained and mentored 2 QA engineers in UI automation; regularly coached developers on TDD/BDD benefits.
• Maintained test coverage and feedback cycles using TestRail, Jira, Git, and GitLab in an Agile/DevOps environment.

Tools: Java, Selenium WebDriver, Cucumber, REST Assured, Postman, Jenkins, Docker, Git, TestRail, Jira

CIPHR are a HR platform both web and desktop for companies to manage there people resources.

• Led QA efforts for a two-factor authentication and core HR system, ensuring quality in an Agile Kanban/BDD environment.
• Built a UI test automation framework using Selenium and Java; performed API testing with REST Assured and Postman.
• Created test plans and user scenario test cases, aligning closely with developers and stakeholders to drive quality standards.
• Supported continuous improvement of QA processes and contributed to strategic feedback loops.
• Utilized test and bug tracking tools to manage quality assurance throughout the SDLC.

Tools: Selenium, Java, REST Assured, Postman, Test Management & Bug Tracking Tools, Agile/BDD

Sachitech was a mobile app development agency working with small to mid size clients on project deliveries.

• Performed functional testing for CMS, web, and mobile applications across iOS, Android, Blackberry, and Windows Phone.
• Developed automated test scripts using Selenium, Java, and Cucumber for web application testing.
• Created and executed detailed test cases in an Agile Kanban environment.
• Utilized Jira for bug tracking and collaboration with development teams to resolve issues efficiently.

Tools: Selenium, Java, Cucumber, Jira, Agile, Cross-platform Mobile Testing