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Senior Software Developer - Companies House - HEO

Government Digital & Data -

Full-time (Permanent)
The basic salary is £40,398 with an additional, non-pensionable digital allowance of up to £11,000.
Published on
23 July 2025
Deadline
10 August 2025

Location

Remote working (anywhere in the UK)

About the job

Job summary

Do you have a passion for delivering user focused digital services and using the latest technology to deliver solutions to a global audience of millions?

Are you enthusiastic about clean code, well designed software and mentoring others to enable them to work at their best?

If the answer to the above is yes, we would love you to join us and be part of our team to help us build the future of our Digital Services!

We are looking for Software Developers with Java/Spring and/or Typescript/Node.js experience. 

Our current technology stack is: Java, Spring, Typescript, Node.js, Kafka, MongoDB, Oracle, AWS, Docker.  

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:

  • Companies House cannot offer Visa sponsorship to candidates through this campaign. 
  • 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. 
  • The majority of our teams are primarily based in our Cardiff head office. The teams are a mix of hybrid and fully remote workers. Remote contracts will only be offered to successful candidates who are not within a commutable distance to our Cardiff, Belfast or Edinburgh offices. If you are located in a reasonable distance to one our offices, you will receive a hybrid contract aligned to one of our offices. 

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

Job description

As a Senior Developer you'll join one of our many Agile Software Development teams. A typical team is made up of an agile delivery manager, developers, testers, user researchers, analysts and a product owner.

You’ll be responsible for:

  • Designing efficient and maintainable solutions
  • Contributing and adhering to our technical standards
  • Mentoring software engineers in your team and the wider software development community
  • Maximising the automated test coverage to help move to continuous delivery
  • Ensuring code quality through code reviews

What it is like to work in Companies House

Inclusive and diverse teams are important to us. Wherever possible we offer flexible working arrangements. We'll support you to meet other commitments and help you strike a better work-life balance. We’re keen to create an environment that works for everyone, and we particularly encourage applications from different underrepresented demographics. 

Half a day a week is devoted to Innovation time where everyone in digital can work on whatever they choose, be that building new applications, trying new technologies or working towards certifications, it’s up to you. In addition to this we offer lots of opportunities to have training as and when it is needed. We trust and empower our staff to work in a way which best suits them. 

Companies House is an award-winning employer, with an Investors in People Platinum Award we are at the forefront in ensuring our staff reach their full potential in building brilliant services on cutting-edge technology. You’ll be joining our Software Engineering Profession at a time of transformation and you will be a part of shaping the future of our department. We use Agile Methodologies and promote a culture of continuous improvement. 

Person specification

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

  • Working knowledge of programming tools, frameworks, and techniques in at least one of the following ecosystems: Java/Spring or Typescript/Node.js (you will be expected to learn to become proficient in both once in post as required according to business needs). 
  • Experience of developing software throughout the delivery lifecycle. 
  • Knowledge of RESTful APIs.  
  • A passion for high quality, well-crafted code, and associated tooling. 
  • A degree in computing or similar would be an advantage, or equivalent industry experience. 
  • You embrace continuous integration and have a continuous delivery mindset. 
  • You are patient and can help support and mentor others with different degrees of expertise to maximise their potential. 
  • You have excellent communication skills and can help explain complicated technical issues to individuals who don’t share the same technical experience.  
  • Knowledge of any of the following technologies / tools: Concourse CI, Kafka, MongoDB, Oracle SQL, Docker, Terraform.
  • Knowledge of microservice driven architecture. 
  • Knowledge of developing in the Cloud.   

Behaviours

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

  • Changing and Improving
  • Making Effective Decisions
  • Developing Self and Others
  • Communicating and Influencing

Technical skills

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

  • Systems Integration
  • Development Process Optimisation
  • User Focus
  • Programming and Build
  • System Design

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