Front End Developer; Power Apps

Senior Front-End Engineer

Location: Hybrid – two days per week in the MOD offices in the South East
Contract: 12-month FTC with full company benefits
Clearance: Must hold active SC clearance and have UK government / public sector experience

We are unable to consider candidates who don’t have active SC.

At Amber Labs
, we’re a cutting-edge UK and European technology consultancy that empowers autonomy, promotes experimentation, and drives rapid learning to deliver exceptional value to our clients. Collaboration sits at the heart of our culture — every team member, regardless of role, works together to minimise risk and accelerate delivery. Our teams consist of highly skilled engineers, designers, analysts, and consultants dedicated to building world-class digital services for government and enterprise clients.

We’re seeking an experienced Senior Front-End Engineer to lead the development, modification, and maintenance of the front-end elements that users interact with across our government service platforms.

You’ll work in multidisciplinary teams, collaborating with designers, developers, and user researchers to deliver accessible, performant, and standards-compliant services that meet the needs of real users and align with government digital standards.

This role is about setting the bar for front-end quality, defining best practices, ensuring accessibility and performance, and applying modern development techniques. You’ll champion progressive enhancement, responsive design, and usability across multiple browsers and devices.

• Lead front-end development across multiple digital service projects.
• Build accessible, responsive user interfaces that meet GDS accessibility and usability standards.
• Ensure products are built with modern web development techniques and principles.
• Collaborate with multidisciplinary teams, including UX designers, back-end developers, and testers.
• Maintain high code quality through code reviews, testing, and documentation.
• Optimise web performance and maintain browser/device compatibility.
• Mentor junior developers and promote a culture of continuous improvement.
• Contribute to design system evolution and reusable component libraries.

• Proven experience as a front-end developer in production and prototype environments.
• Strong proficiency in HTML5
  , CSS3
  , and Java Script (including Node.js
  , ReactJS
  , ExpressJS
  , Mongoose
  ).
• Experience with templating and UI frameworks such as Nunjucks
  , Freemarker
  , Bootstrap
  , LESS
  , and SASS
  .
• Working knowledge of CI/CD tooling such as Git
  , Git Lab CI
  , Jenkins
  , Sonar Qube
  , Nexus
  , and Artifactory
  .
• Deep understanding of accessibility, progressive enhancement, and performance optimisation.
• Experience building services that perform efficiently across multiple devices and browsers.
• Strong understanding of UX principles and user-centred design.
• Experience working in Agile delivery teams.

• Must hold active SC clearance
• We are unable to consider candidates requiring visa sponsorship at this time.

• Competitive salary and performance-based bonus structure.
• Opportunity to work on impactful government digital services.
• Hybrid and flexible working arrangements.
• Private medical insurance (Aviva).
• Company pension plan (Nest).
• 25 days annual leave plus UK bank holidays.
• Access to Perkbox – employee discounts, perks, and wellbeing resources.
• Inclusive and collaborative company culture that values experimentation and innovation.
• Choice of device – PC or Mac.