Full Stack Developer

We're a nimble IT company, built up of industry-leading experts, driving the digital transformation of the UK public sector. We are passionate about building software that is essential, usable, robust and cutting-edge.

We work with the largest government departments, including the Ministry of Defence, Department for Business, Energy and Industrial Strategy, HM Treasury and the Oil and Gas Authority.

Our projects include the UK export licensing service, the UK Energy Portal, and eCase, our correspondence, parliamentary questions and FOI handling product, used by five major government organisations.

About the role

As we continue to grow, we are looking for full stack developers who share our vision and passion. You will quickly get stuck in as part of a close-knit cross-functional team, building, delivering and supporting diverse web applications. To produce excellent software, you will engage with our customers, influence the direction of both technical and product design, and create novel features for complicated user stories.

With your team members, you will select the right technology for the job; some of the things we've used in the past year include: FOXopen, Oracle Database, Puppet, the Play 2 Framework, Sparkjava, Dropwizard, Selenium, Cucumber, Docker and Kubernetes, along with all the web essentials (HTML, CSS, JavaScript, jQuery, XML and JSON).

Our developers work with the best tools money can buy, have large widescreen monitors, and work in a bright, modern office suited to the team collaboration that we thrive on. We use agile in the truest sense – favouring people over process and continuously improving how we work. We have a casual dress code and flexible working hours.

Reward package

We offer a starting salary of between £37,000 - £42,000 pa (depending on skills and experience), and excellent benefits, including: annual profit share, private health cover, and free bar in the office for Friday drinks! Non-alcoholic drinks are included. You will also get to enjoy our monthly social events, like go-karting, urban golf, bowling, ping pong at Bounce and visiting Cirque du Soleil.


We're not looking for knowledge of particular programming languages - we're interested in programming skill, problem solving ability and an eye for what makes a great system that people will want to use.

You will have:

  • 3+ years' professional experience in a software or web development role
  • Experience with SQL, database modelling and programming
  • Experience of working directly with clients to gather requirements and feedback
  • Strong attention to detail

You must be eligible to work in the UK and must be able to obtain security clearance to work with the UK government.

How to apply

Please email your CV (2-3 pages A4) to careers@fivium.co.uk with "Full Stack Developer" in the subject line. We'll be looking for evidence of your passion for programming, along with a clear history of being Smart and Getting Things Done.

If you use LinkedIn, Stack Overflow Careers, GitHub, etc. and you want to share your profiles with us, we would love to see them.

If you’re not an EU, EEA or Swiss citizen, please let us know how you're eligible to work in the UK when you apply. Unfortunately, we're not able to sponsor those applicants unable to work in the UK.


  • SimplyHealth - health cover that pays for eye care, contact lenses, dental, etc.
  • Profit share*
  • Season ticket loan*
  • Ride2Work scheme with Evans Cycles
  • Monthly all-staff social events (go-karting, urban golf, bowling, Taste of London)
  • Company away days
  • Free fruit, tea, coffee, juice and soft drinks
  • Budget for training, going to conferences, etc.
  • 23 days’ leave per year (rising to 25 after three years)
  • Enhanced maternity and shared parental leave
  • Childcare vouchers
  • Income protection cover
  • Critical illness cover
  • Life assurance
  • Private health insurance (Bupa)*
  • Enhanced pension scheme (5% employer contribution)*

* available after completing your probation period.

About us

Fivium is an award-winning, successful software development company based near Embankment, Central London.

We have been steadily growing for 10 years while maintaining our start-up culture, where everyone is encouraged to discuss and share ideas with all staff members, from most junior to the company directors. Our growth has been fuelled by our strong relationships with customers, our reputation for excellence and our commitment to hiring the very best.

We were recently awarded with the Investors in People Gold Accreditation, a testament to our commitment to being an awesome place to work.

ISO 9001 Certified

ISO 27001 Certified

ISO 14001 Certified

Crown Commercial Service Supplier

Cyber Essentials Plus

Investors in People Gold