Senior Test Engineer - Companies House - HEO

Manchester Digital; Cardiff; Hybrid; GBP 41,000 - 46,000; Full time

Job summary

A government agency is seeking a Senior Test Engineer to join their Cardiff team. The ideal candidate will facilitate quality assurance within agile teams, mentor junior testers, and advocate for automated testing. Responsibilities include designing test strategies and collaborating with team members for seamless delivery. The position offers a range of benefits, including remote working options and a flexible culture, ideal for maintaining a healthy work-life balance.

Benefits

30 days annual leave

Flexible working with no core hours

Civil Service Pension scheme

Qualifications

• Proficiency in Typescript/Playwright, Java/Selenium or similar testing frameworks.
• Experience in web and API applications.
• Exposure to Security, Performance, and Accessibility Testing.

Responsibilities

• Define test strategies and mentor Junior Test Engineers.
• Work in an agile Scrum team focusing on automated testing.
• Encourage an automation-first approach.

Skills

Proven experience designing and automating software tests

Strong proficiency in Typescript/Playwright

Experience working in Agile/Scrum environments

Non-Functional testing practices

Tools

AWS

Docker

SQL

Postman/SOAP UI

Job description

Senior Test Engineer - Companies House - HEO

Base salary is £41,509 with an additional DDaT allowance of £4,350 - £11,000 available. Published on

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.

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%.

• 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.

• 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.

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.
• 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
• 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: