About Us – simply brilliant thinkers making software brilliantly simple
At Box UK, we have over 25 years’ experience of designing, developing and successfully delivering large-scale, user-centred digital platforms for ambitious, disruptive and innovative organisations across the globe. Our ambition is to become the number one destination for clients and employees, delivering scalable and dynamic enterprise digital platforms.
Adopting an Agile approach that enables us to adapt quickly and respond effectively, we take pride in delighting our clients through the consistent delivery of large-scale enterprise websites and applications and our scalable and resilient award-winning systems.
To keep growing and keep winning, we’re looking to add more great people to our team to help us drive our business forward. We are currently looking for a Principal QA Engineer to join a group of exceptionally talented and passionate individuals and contribute towards our continued success.
We have retained an entrepreneurial spirit and start-up mentality, and have created a fun and inclusive culture, centred around continuous improvement and learning. We’re a highly collaborative team, continually striving to innovate and excel in everything we do to consistently deliver an exceptional customer experience.
Our values define us and underpin everything that we do. They are the reason our people give us incredible feedback about the culture we have created, and we are extremely proud of this. It’s our people and culture that truly sets us apart from our competitors, and we look for people who passionately share these values with us:
- Bring your A game
- Deliver amazing experiences
- Everyone is an innovator
- Have fun and value the team
- Own it!
Being a Principal QA Engineer at Box UK
Quality isn't a checkpoint at Box UK - it's woven into everything we build. As a Principal QA Engineer, you'll be a driving force behind that culture: raising the bar on how quality is defined, practised, and continuously evolved across our client projects and internal engineering team.
You'll own quality end-to-end on complex, multi-technology projects while actively shaping the practices, standards, and automation capabilities that the wider QA function relies on.
In this role you will…
Lead quality on client projects
- Take ownership of quality strategy from discovery through to delivery
- Collaborate in requirements analysis to shape testable acceptance criteria from the outset
- Define test approaches and coverage strategies appropriate to project risk, complexity, and timeline
- Be responsible for quality throughout the full development lifecycle, not just test execution
Drive continuous improvement
- Identify systemic quality gaps and champion initiatives to address them
- Analyse and share quality metrics to surface trends, measure improvement, and inform decisions
- Contribute to and help evolve Box UK's QA standards, processes, and tooling
Build and maintain robust test capability
- Design, write, and maintain high-quality manual and automated tests in line with Box UK's guidelines
- Set up and scale automation frameworks (e.g. Playwright, Robot Framework) to support teams effectively
- Ensure test suites remain reliable, maintainable, and genuinely useful - not just present
- Support and mentor QA engineers, sharing knowledge and raising capability across the function
Be an active team member
- Attend and contribute meaningfully to project, team, and client meetings
- Provide clear, timely feedback to project teams through regular and ad-hoc reporting
- Work closely with developers, product managers, and designers to embed quality thinking early
- Provide timely estimates for QA effort in relation to existing projects and new opportunities.
For this role the following skills and competencies are essential…
Communication and collaboration - You can articulate quality risk clearly to both technical and non-technical audiences, build trust quickly, collaborate effectively, and influence without authority.
Continuous improvement mindset - You don't just flag problems; you diagnose root causes, propose solutions, and follow through on making things better.
Technical depth - You bring genuine hands-on expertise in test design and automation, not just familiarity.
Problem solver - You relish complex challenges and approach them with creativity and pragmatism.
Self-directed - You manage your own workload effectively, prioritise well under pressure, and know when to escalate.
Resilient & tenacious - You maintain high standards and composure even when timelines are tight or requirements shift.
Meticulous - You catch what others miss and bring that same thoroughness to documentation, defect reports, and test coverage.
And you will also need…
- 5+ years of relevant QA experience, with demonstrable seniority in at least some of that time
- Proven experience leading QA on projects end-to-end within agile delivery teams
- Strong practical knowledge of test design techniques and when to apply them
- Hands-on experience setting up, designing, and maintaining automation frameworks - Playwright preferred
- Solid experience testing RESTful APIs and diagnosing integration issues
- Experience testing across web and mobile applications
- Proficiency with Git/GitHub and standard version control workflows
- Experience with defect management processes and diagnostic/debugging tools
- ISEB Intermediate, Certified Agile Tester, or equivalent
- Familiarity with Jira, Confluence, and test management tooling
And in return...
You will enjoy a competitive salary and a comprehensive benefits package.
We recognise that our success comes from the talent, passion and dedication of our team. Working collaboratively, we share the challenges and rewards that come from growing our company, reinforcing our culture of ownership. We understand the importance of personal growth and professional development and invest in the skills of our people to nurture their talent. Our working environment is fast paced, exciting and fun to work in.
We are an inclusive employer that welcomes diversity, challenges discrimination and promotes equality. We welcome and encourage applications from people of all backgrounds and do not discriminate on the basis of any protected characteristic.
Job Types: Full-time, Permanent
Pay: Up to £55,000.00 per year
Benefits:
- Company pension
- Cycle to work scheme
- Employee discount
- Life insurance
- Paid volunteer time
- Private medical insurance
- Referral programme
Work Location: Hybrid remote in Cardiff
