About us:
oneZero is a global leader in multi-asset enterprise trading technology, trusted by over 200 financial institutions worldwide. With Operations across USA, UK, Singapore and Australia, we empower banks, brokerages and hedge funds with a highly customisable, ultra-low-latency platform that sits at the core of modern financial markets.
At oneZero, we don’t just build cutting-edge technology, we create an environment where exceptional people can thrive. Our culture is collaborative, high-performing and driven by real impact. It’s a place where your ideas are valued, your expertise is recognised, and your work genuinely makes a difference.
We’re proud to be consistently recognised as a top employer:
About the role:
Ensures that code written by developers performs as expected in terms of function, compatibility, design, and performance chiefly by developing testing programs to identify possible defects in pre-deployment software. Operates at all levels of the testing pyramid, employing knowledge of the end user business domain to validate suitability for purpose. Improves testability of application. Collaborates with engineering and product colleagues to ensure consistently high quality software. Independently can own and implement full automation test coverage at an Epic level on one’s own or can decompose the work and coordinate the work within the squad/team to completion.
Roles and Responsibilities:
Quality and Best Practices Champion
Contributes to our AI automate first approach to testing within a release
Construct automated test plans that incorporate both positive and negative scenarios
Participates in quality postmortem activities to better understand and automate escapes
Understands of each tier of the testing pyramid
Advocates for stories and epics to meet both Definition of Ready (DoR) and Definition of Done (DoD)
Identifies automation framework updates needed to support new feature automation
Innovator
Experience AI prompting and workflows using AI for test automation development
Understanding of Generative AI as it applies to QA
Work with AI-assisted code review and static analysis tooling (Copilot, CodeScene, etc.)
Able to apply client-centric and persona based testing to our TDD/test first methodology
Automated Test Developer
Designs effective automation with assisted AI to validate the intended functionality
Writes automated tests and participates in code reviews
Able to work at all levels of the test pyramid
Creates well documented maintainable automated tests
Ensures automated tests are incorporated into CI/CD pipeline and monitors test results
Investigates and resolves test discrepancies in a timely fashion
Reviews, troubleshoots and maintains existing automation
Automate and validate end to end system workflows within multiple components
Able to refactor test automation
Agile Practitioner
Demonstrates understanding of Agile principles
Able to accurately estimate stories and one’s own capacity
Applies Kaizen principles to daily work
Business Domain Expert
Has business domain experience and extends business domain through purposeful study
Understands the what and why of user workflows in functional areas of responsibility
Able to troubleshoot failure modes
Demonstrates analytical, systems thinking
Acquires subject matter expertise in application under test
Test Framework Developer
Learns our test frameworks and tooling
Follows the common coding standards used by all application and test developers
Contributes to and suggests improvements to the test framework
Able to work with multiple frameworks; REST/API, GUI, performance, ETL/big data as well as custom test solutions
Tier 3 Support Troubleshooter
Understands the production support model
Understands how production environments are deployed and configured
Contributes to production troubleshooting and use case replication
Role requirements:
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