Nucleus Financial
Test Automation Engineer

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Job Description
The Test Automation Engineer at Dunstan Thomas plays a hands-on role in designing, developing, executing, and maintaining automated tests to ensure DT products and services meet defined requirements, function correctly, and comply with regulatory and operational standards.
Role Responsibilities
The Test Automation Engineer is responsible for:
- Developing automated test coverage across DT applications and services.
- Turning appropriate existing test scenarios into repeatable automated tests.
- Creating new automated tests to address coverage gaps.
- Ensuring automated regression coverage remains reliable, effective, and maintainable.
The Test Automation Engineer works closely with:
- Developers
- Business analysts
- Product owners
- Other members of the Test team
Responsibilities include:
- Investigating automated test failures.
- Maintaining test scripts as applications change.
- Contributing to the continuous improvement of automation frameworks, tools, and processes.
Ideal Candidate Profile
This role is ideal for individuals who combine:
- Strong technical and analytical skills
- Attention to detail
- An interest in software development and automation
- A willingness to learn and develop their knowledge in a fast-moving, regulated fintech environment
Typical Job Responsibilities
Automation Test Development
- Design, develop, and maintain automated tests for DT applications and services.
- Convert appropriate existing test cases and regression scenarios into repeatable automated tests.
- Create new automated test cases and scripts to address gaps in functional, integration, and regression coverage.
- Develop automated tests that provide reliable and repeatable validation of application functionality.
- Create reusable automated test components and scripts where appropriate to improve the efficiency and maintainability of the automation pack.
- Ensure automated tests are clearly structured, documented, and maintained in accordance with agreed standards.
- Contribute to the ongoing development and improvement of the automated regression test pack.
Automation Test Execution & Maintenance
- Execute automated tests and analyze results to identify application defects, automation issues, test data problems, or environmental failures.
- Investigate automated test failures and take appropriate action to resolve issues or escalate defects.
- Maintain and update automated tests in line with changes to applications, requirements, and supported business processes.
- Review automated tests for coverage, usefulness, reliability, and reusability.
- Identify redundant, unreliable, or outdated automated tests and contribute to their improvement or removal.
- Ensure automated tests continue to provide effective regression protection as applications evolve.
Test Coverage & Quality Assurance
- Analyze automated test coverage and identify gaps and opportunities for additional automation.
- Develop automated tests to improve functional, regression, and integration test coverage.
- Provide feedback to improve automation coverage, test design, documentation, and process consistency.
- Support the definition and reporting of appropriate test automation coverage and quality measures.
- Apply established QA standards, automation practices, checklists, and procedures throughout the software development lifecycle.
- Contribute to quality reviews, test readiness assessments, and retrospectives.
- Identify opportunities to improve the efficiency, effectiveness, and maintainability of automated testing.
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API, Database & Technical Testing
- Develop automated tests across appropriate application layers, including user interface, API, and database testing where supported by the approved tools and frameworks.
- Create automated tests that are not solely dependent on user interface interaction where appropriate.
- Use SQL and database queries to support test data preparation, data validation, and investigation of automated test results.
- Validate data integrity, transaction processing, and system behavior through automated testing.
- Develop and maintain the technical knowledge required to understand the applications and technologies being tested.
- Apply coding or scripting skills, where required, to develop and maintain effective automated tests.
Defect Management
- Identify, log, and investigate defects identified through automated testing, ensuring they are reproducible and clearly documented.
- Work with developers and other technical teams to investigate and resolve defects.
- Retest fixes through automated testing where appropriate and confirm that resolved defects have not introduced regression.
- Take ownership of assigned defects and automation issues through to resolution or appropriate escalation.
Collaboration & Communication
- Work closely with developers, business analysts, product owners, and other testers to understand requirements and identify appropriate automation coverage.
- Participate in Agile Scrum ceremonies and contribute automation expertise to sprint planning, refinement, and delivery activities.
- Communicate clearly about automated test progress, coverage, failures, issues, and risks to the Test Lead, Senior Tester, or Test Manager.
- Work collaboratively with technical and non-technical stakeholders to support the effective delivery of quality software.
- Share knowledge, automation techniques, and good practices across the Test team.
Tools & Methods
- Use approved tools for test automation, test management, defect tracking, and documentation.
- Experience of using Ranorex automation tool.
- Develop and maintain automated tests using approved automation tools and frameworks.
- Use test management and delivery tools, such as DevOps and Jira, to support automation activities.
- Contribute to maintaining appropriate automated test environments and test data sets.
- Apply appropriate automation design techniques to maximize the reliability, maintainability, and reusability of automated tests.
- Work in accordance with agreed software development, testing, and Application Lifecycle Management processes.
- Maintain awareness of relevant development technologies and methodologies to support effective automation.
Expected Professional Behaviours
- Attention to Detail: Demonstrates accuracy and thoroughness when designing or executing tests.
- Accountability: Takes responsibility for assigned tasks and ensures deliverables meet quality expectations.
- Collaboration: Works effectively as part of a cross-functional team, contributing to shared testing goals.
- Proactivity: Escalates issues promptly and suggests improvements where appropriate.
- Learning Orientation: Seeks feedback and actively develops technical and domain knowledge.
- Technical Curiosity: Demonstrates an interest in understanding how applications and technologies work and applies this knowledge to improve automated testing.
- Problem Solving: Investigates automated test failures methodically and uses evidence to identify the underlying cause.
- Integrity: Handles sensitive financial and customer data responsibly and in accordance with regulatory standards.
- Initiative: Able to work independently on assigned automation activities, using initiative to manage and prioritize their workload.
- Communication: Communicates clearly and effectively with both technical and non-technical colleagues.
- Adaptability: Responds positively to change, new tools, and agile delivery methods.


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About Us
We’re the Nucleus Financial Platforms group and we help make retirement more rewarding. People come first - whether it’s our colleagues, or the advisers and customers we support, we know that working in partnership and collaboration leads to the best outcomes. Together, we’ve shaped the platform to how it is today. We work hard, and we celebrate hard too.
Our ambition is to create a platform with a difference, putting the customer center stage meant tearing up the rule book and starting from scratch. We’ve come a long way since then, but our mission remains just as focused. That’s why our culture, values, and social responsibility are things we keep at the top of our agenda – because we know they matter and have a big impact.
Our culture is one of the many things that sets us apart from the pack. We want to have an environment where our people feel that they can make a real difference, know they’ll be rewarded for their efforts, and more importantly, enjoy themselves at work.
Inclusion and Diversity at Nucleus
As with most things in life, who cares, wins. We really care about inclusion. For us, it’s not a tick box exercise; inclusion and diversity are embedded in our culture and everything we do. It’s a commercial imperative. It isn’t about being PC. It’s about being future-relevant and durable. We owe it to ourselves and the industry to ensure we are playing our part in creating a fair, balanced, and transparent financial services sector.
More diversity means broader experience, a wider set of perspectives, and a better collective ability to problem-solve. And it means being more representative of customer groups, which supports areas such as product development.
At Nucleus, we offer a generous blend of benefits for the things that really matter to our people, including a non-contributory pension, bonus, enhanced parental leave, paid time off for emergencies, health and wellbeing initiatives, and flexible working options.
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