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Senior Test Engineer - Companies House - HEO

Government Digital & Data -

Full-time (Permanent)
Base salary is £41,509 with an additional DDaT allowance of £4,350 - £11,000 available.
Published on
30 December 2025
Deadline
14 January 2026

Location

Remote working (anywhere in the UK)

About the job

Job summary

We are looking for enthusiastic Senior Test Engineers with great technical skills able to deliver testing in agile delivery teams and coach and mentor other testers.

The role includes collaboration with developers, product owners, and analysts to define acceptance criteria, designing test scenarios, and ensuring features deliver a seamless user experience, contributing to sprint activities and providing clear, actionable feedback to maintain quality across releases.

This is an exciting opportunity in the Digital Services team. You’ll be joining our team at a time of transformation and you will be part of shaping the future of our department. We use Agile Methodologies and promote a culture of continuous improvement.

This is a rewarding role within the Test Team and provides an opportunity to contribute to the success of existing and future services provided by Companies House.

Watch this video to find out more about working in Digital at Companies House

Companies House offers a flexible and welcoming culture that promotes a healthy work life balance as well as a proactive approach to wellbeing that allows us to be our best at work.  We recognise that people are the key to our success so offer a fantastic benefits package including flexible working with no core hours, 30 days annual leave, 8 bank holidays and 1 privilege day as well as enrolment into the Civil Service Pension scheme with a contribution rate averaging 28%.   

Find out more about what a great place Companies House is to work

Please note:

  • Security Clearance is an essential requirement for this campaign.  You'll need to have been in the UK for at least 3 out of the last 5 years to be eligible to apply for SC. 
  • Companies House cannot offer Visa sponsorship to candidates through this campaign. 
  • The team for this role is based in our Cardiff office and a hybrid employment contract will be provided as the standard offering. However remote contracts may be considered as an exception whereby commuting to the office location of your team is not reasonably practicable. 

Please see 'Things you need to know' and 'Where will you be working' sections below for more information.  

You can read more about a career in Digital and Data within the Civil Service in the Government Digital and Data Candidate Information Pack.

Job description

  • As a Senior Tester in an Agile team, you’ll lead quality assurance by defining test strategies, mentoring team members in test practices, and ensuring seamless delivery through collaborative, iterative development.
  • You’ll work as part of an agile Scrum team delivering and improving Companies House services, with a focus on advancing our automated testing capabilities.
  • You will encourage an automation-first approach.
  • We've recently migrated from Java/Selenium and BDD frameworks to the state-of-the-art Playwright/TypeScript stack, integrated with BrowserStack Automate.

Person specification

We are looking for the following experience and skills which will be assessed at sift and interview. 

Experience 

  • Proven experience designing and automating software tests, ideally in web and API applications. You will be expected to coach and mentor Junior Test Engineers.  
  • Strong proficiency in Typescript/Playwright, Java/Selenium or similar modern testing frameworks. 
  • Familiarity with cloud-based testing platforms (e.g. Browserstack Automate). 
  • Experience working in Agile/Scrum environments. 
  • Experience of Non Functional testing practices including Security, Performance and Accessibility Testing.  

Some experience of any of the following would also be beneficial:  

  • AWS 
  • Concourse / Jenkins 
  • Docker 
  • JMeter 
  • Karate/Rest API 
  • MongoDB 
  • Oracle 
  • Postman/SOAP UI 
  • Selenium Grid 
  • SQL 
  • Typescript 
  • Unix based systems 
  • Version control 
  • XML 

Behaviours

We'll assess you against these behaviours during the selection process:

  • Making Effective Decisions
  • Managing a Quality Service
  • Delivering at Pace
  • Working Together
  • Developing Self and Others

Technical skills

We'll assess you against these technical skills during the selection process:

  • Test planning and automation testing

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