Mid and Senior Developer

The Government Digital Service (GDS) is the digital centre of government. We are responsible for setting, leading and delivering the vision for a modern digital government.

Our priorities are to drive a modern digital government, by:

1. joining up public sector services
2. harnessing the power of AI for the public good
3. strengthening and extending our digital and data public infrastructure
4. elevating leadership and investing in talent
5. funding for outcomes and procuring for growth and innovation
6. committing to transparency and driving accountability

We are home to the Incubator for Artificial Intelligence (I.AI), the world-leading GOV.UK and at the forefront of coordinating the UK’s geospatial strategy and activity. We lead the Government Digital and Data function and champion the work of digital teams across government.

We’re part of the Department for Science, Innovation and Technology (DSIT) and employ more than 1,000 people all over the UK, with hubs in Manchester, London and Bristol.

The Government Digital Service is where talent translates into impact. From your first day, you’ll be working with some of the world’s most highly-skilled digital professionals, all contributing their knowledge to make change on a national scale.

Join us for rewarding work that makes a difference across the UK. You'll solve some of the nation’s highest-priority digital challenges, helping millions of people access services they need

Job description

The GOV.UK One Login Programme represents a once in a generation opportunity to simplify and widen access to all digital government services. Sitting at the heart of the government, we are building one simple, safe and secure way for users to log in and prove who they are that will work across all government services.

Effective identity assurance is central to digital transformation and GOV.UK One Login enables people to prove who they are online, with the necessary level of confidence to access and use particular services. Our technology stack runs on AWS, using serverless compute and storage products. Backend services are written in TypeScript/Node.js and JVM technologies. Web applications also use TypeScript.

The GOV.UK One Login programme is full of talented and passionate people who are focussed on delivering high quality products for services and individuals. The right person will join a well motivated and multi-disciplined delivery team working to deliver on our commitments and roadmap. We are an ambitious and visionary team so if you want to be at heart of this, have a background in software delivery and are used to working in a scaled agile environment then this could be the place for you!

Sometimes described as the most strategic programme in government, GOV.UK One Login represents a once in a career opportunity to work on a software product that will be used by the majority of the people living in the UK. It’s a fast paced, dynamic and challenging environment that is sure to offer you career satisfaction as well as a chance to develop and enhance your skills.

GOV.UK One Login is being designed and built for the many, not the few. It will unite services across government, revolutionising the way government departments interact digitally with users. One Login will deliver an accessible and essential function that will change lives and help millions.

If this sounds like the next role for you on your career journey then we’d love to hear from you.

As a Developer on GOV.UK One Login, you’ll:

• work as part of a multi-disciplinary agile team, getting involved with every part of the lifecycle of a service, from user research to continuously deploying code to production in our AWS environments
• build robust, performant Java and/or TypeScript services to serve a variety of citizen and government needs, taking responsibility for the quality of code you produce
• implement tooling and automation to support development, operation, reliability, security and continuous improvement of the systems you work on
• support the live operation of the services we run, and participate in out-of-hours support rotas where necessary - you'll be paid an allowance, and a further hourly payment, for any duties you perform when on call
• share your work and the things you’ve learned through blog posts and show and tells, with the option of presenting at conferences and meetups
• use your learning and development budget to develop your career
• help recruit other developers and, where appropriate, get involved with sifting and interviewing

Person specification

The skills we would expect a Developer to have: 

• experience in back-end development, with knowledge of either the JVM ecosystem or the JavaScript/TypeScript/Node.js ecosystem
• an awareness of technologies used for cloud based web applications, such as databases, backups, CDNs, containerisation, and serverless computing
• familiarity with modern software development approaches such as automated testing, test driven development (TDD), continuous integration, pair programming, code review, observability and version control
• experience working in a collaborative environment, and an understanding of the benefits of agile and multi-disciplinary approaches

In addition to the above, Senior Developers will also:

• have experience supporting others in applying modern development standards
• have experience in management, helping colleagues with their career development and coaching more junior staff members

If you meet a few of those criteria but think that you might not meet every last one then don’t let that stop you from submitting an application.

Benefits

There are many benefits of working at GDS, including:

• flexible hybrid working with flexi-time and the option to work part-time or condensed hours
• a Civil Service Pension with an average employer contribution of 28.97%
• 25 days of annual leave, increasing by a day each year up to a maximum of 30 days
• an extra day off for the King’s birthday
• an in-year bonus scheme to recognise high performance
• career progression and coaching, including a training budget for personal development
• a focus on wellbeing with access to an employee assistance programme
• job satisfaction from making government services easier to use and more inclusive for people across the UK
• advances on pay, including for travel season tickets
• death in service benefits
• cycle to work scheme and facilities
• access to an employee discounts scheme
• 10 learning days per year
• volunteering opportunities (5 special leave days per year)
• access to a suite of learning activities through Civil Service learning

Any move to Government Digital Service from another employer will mean you can no longer access childcare vouchers. This includes moves between government departments. You may however be eligible for other government schemes, including Tax Free Childcare. Determine your eligibility at https://www.childcarechoices.gov.uk 

Office attendance
The Department operates a discretionary hybrid working policy, which provides for a combination of working hours from your place of work and from your home in the UK. The current expectation for staff is to attend the office or non-home based location for 40-60% of the time over the accounting period.
DSIT does not normally offer full home working (i.e. working at home); but we do offer a variety of flexible working options (including occasionally working from home).

Things you need to know

Artificial intelligence

Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Where plagiarism has been identified (presenting the ideas and experiences of others, or generated by artificial intelligence, as your own) applications may be withdrawn and internal candidates may be subject to disciplinary action. Please see our candidate guidance (opens in a new window) for more information on appropriate and inappropriate use.

Selection process details

The standard selection process for roles at GDS consists of:

• a simple application screening process - We only ask for a CV and cover letter of up to 750 words. Important tip - please ensure that your cover letter includes how you meet the skills and experience listed in the “person specification” section above
• a 20 minute google meet telephone interview (may not be required depending on the volume of applicants)
• a 45 minute pair programming technical exercise - you'll work with a GDS engineer to solve a self-contained programming problem given to you in writing. You'll be asked to discuss the problem with the GDS engineer, devise a plan for solving it, and then to write code to solve the problem. As well as your programming and unit testing skills we'll be evaluating how you communicate and collaborate, and how you break down the problem. You'll use your own development environment for this (conducted over video conferencing)
• a 75 minute video interview (conducted over video conferencing)

Depending on how many applications we get, there might also be an extra stage before the video interview, for example a phone interview or a technical exercise.

In order to assist candidates with this role, we will be holding a virtual recruitment event on Wednesday 21st January at 1pm - 2pm to go through the role in more detail. To attend the virtual recruitment event please use the link below and use the following details to join:

Join the meeting now

Meeting ID: 313 163 292 682 38

Passcode: Qe9bU923

In the event we receive a high volume of applications, we will conduct the initial sift against the lead criteria which is:

• experience in back-end development, with knowledge of either the JVM ecosystem or the JavaScript/TypeScript/Node.js ecosystem

In the Civil Service, we use Success Profiles to evaluate your skills and ability. This gives us the best possible chance of finding the right person for the job, increases performance and improves diversity and inclusivity. We’ll be assessing your technical abilities, skills, experience and behaviours that are relevant to this role.

For this role we’ll be assessing you against the following Civil Service Behaviours:

• working together
• changing and improving
• making effective decisions

We’ll also be assessing your experience and specialist technical skills against the following skills defined in the Government Digital and Data Capability Framework for the Developer and Senior Developer  role:

• programming and build (software engineering)
• modern standards approach
• systems design
• development process optimisation
• information security
• availability and capacity management
• service support
• systems integration

Want to know more about who Government Digital and Data are? Click Here

Recruitment Timeline

Virtual recruitment event: Wednesday 21st January 2026 at 1pm - 2pm

Sift completion: week commencing Monday 26th January 2026

Phone screenings: week commencing Monday 2nd February 2026

Technical tests: week commencing Monday 12th February 2026

Panel interviews: week commencing Monday 19th February 2026

Candidates that do not pass the interview but have demonstrated an acceptable standard may be considered for similar roles at a lower grade.

A reserve list will be held for a period of 12 months, from which further appointments can be made.

The Civil Service is committed to attract, retain and invest in talent wherever it is found. To learn more please see the Civil Service People Plan and the Civil Service D&I Strategy.

Please note that this role requires SC clearance, which would normally need 5 years’ UK residency in the past 5 years. This is not an absolute requirement, but supplementary checks may be needed where individuals have not lived in the UK for that period. This may mean your security clearance (and therefore your appointment) will take longer or, in some cases, not be possible.

For meaningful checks to be carried out, you will need to have lived in the UK for a sufficient period of time, to enable appropriate checks to be carried out and produce a result which provides the required level of assurance. Whilst a lack of UK residency in itself is not necessarily a bar to a security clearance, and expectation of UK residency may range from 3 to 5 years. Failure to meet the residency requirements needed for the role may result in the withdrawal of provisional jobs offers.

The Civil Service is committed to attract, retain and invest in talent wherever it is found. To learn more please see the Civil Service People Plan and the Civil Service D&I Strategy.

Sponsorship

DSIT cannot offer Visa sponsorship to candidates through this campaign. DSIT holds a Visa sponsorship licence but this can only be used for certain roles and this campaign does not qualify.

Feedback will only be provided if you attend an interview or assessment.