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Quantum Base

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Senior Product Designer (mobile scanning app) Contract
London, UK
full time
hybrid

Rate: £500 - £600 / day

Location: London, 2 days per week minimum, preferably more. Occasional travel to Lancaster (expenses paid).

Contract duration: 6 months

Start: ASAP

About Quantum Base

Quantum Base has invented the Quantum-ID (Q-ID), a world leading technology solution that stops counterfeits. Our smartphone app (and SDK) verifies the authenticity of Q-IDs in just a few seconds using a very simple scan. We are the only smartphone authentication solution that is fundamentally 100% secure - and we achieve this using quantum physics. We are starting with security printing and brand protection, but the use cases are vast. Quantum Base has 41 patents and was founded by Professor Robert Young at Lancaster University. Our mission is to create a new global standard.

About the Role

We are looking for a contract Senior Product Designer to level up the user experience and user interface of our mobile app. Our app is deceptively simple, but the interface between digital and the physical isn’t straightforward. Our perfect candidate will know this, perhaps from working with scanning apps, augmented reality, KYC or identity checks. 

While a scan only takes 3 seconds, our goal is to make the scanning experience so easy that it feels as familiar as a QR code scan, hiding all the complexity of the dozens of security checks that are being conducted under the hood. Your first job will be to sharpen and polish our UI, test new approaches to the UX and improve the experience for first time users. The simpler and easier the scanning process is, the more use cases we can target and the faster we can achieve our mission of changing the way the world checks if things are real.

This is a high-impact, hands-on role working closely with our software engineers, scientists, commercial team and the CEO. You will take ownership of the end-to-end design process — from understanding user problems, through ideation and prototyping, to shipping polished, intuitive mobile experiences. You’ll be an expert at rapid iterations, working very closely with developers, and able to leverage the latest AI tools, to design, build and test ideas within hours rather than days or weeks.

This role is based out of our London office on Old St, near Old St tube station, with occasional travel to Lancaster (2h20m from Euston) to work with our software and science team. Our Lancaster Lab includes our device lab with over 200 mobile devices for testing. (This role can also be Lancaster based).

What you’ll be doing

  • Product design & UX/UI
  • User research & testing (working with our Testing Lead and army of testers)
  • Deliver prototypes using modern tools and AI to test ideas quickly.
  • Take inspiration from other products and industries and bring best practice to our design.
  • Contribute to product strategy discussions, not just execution
  • Clearly articulate the “why” behind design choices

What we’re looking for

Essential

  • 5+ years experience as a Product Designer / UX-UI Designer in mobile
  • Excellent visual design skills with a clean, confident aesthetic
  • Strong AI skills, able to leverage the latest tools to accelerate delivery
  • Experience running or supporting user research and usability testing
  • Clear and confident communicator who can collaborate across disciplines and seniorities
  • Demonstrable experience with rapid iteration cycles using the latest tooling available.
  • Experience with scanning apps or apps that use the camera (AR, KYC, etc)
  • Basic understanding of software development and design handoff constraints
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Copyright © OpenDigital Limited 2026Terms of ServicePrivacy