• Skip to primary navigation
  • Skip to main content
  • Skip to footer
UK Startup Jobs

UK Startup Jobs

Tech and startup jobs in the UK

  • Hire Now
  • Log In
  • Home
  • Search Jobs
  • Job Alerts

Foundational Mobile App Developer

Never miss a job! Subscribe to get weekly jobs and more by email.
  • Experienced
  • South East England
  • Posted 1 week ago
  • September 26, 2025
Realmbridge.co.uk

Realmbridge.co.uk

(Stealth Mode Start-up)

Upload your CV/resume or any other relevant file. Max. file size: 128 MB.
I consent to my submitted data being used for the purposes of applying to this job

The Opportunity:

We are a pre-seed, founder-led UK start-up operating in stealth mode. We are seeking an exceptional, product-focused App Developer to join us as a foundational expert. You will be responsible for building the core mobile application for our “works-like” prototype, a key asset that will secure our seed funding round. This is a rare opportunity to get in at the ground floor of a new venture and have a significant impact on the product’s direction.

 

The Technical Challenge:

You will be building a mobile application that needs to handle real-time data from a novel hardware device and integrate seamlessly with multiple third-party APIs. The role requires a strong focus on creating a robust, responsive, and intuitive user experience from the ground up. 

What We’re Looking For:

  • Proven experience building and shipping high-quality mobile applications (iOS & Android).
  • A strong portfolio of work (e.g., a public GitHub profile, live apps on the App Store).
  • An entrepreneurial mindset and a passion for building great user experiences.

 

The Process:

We are currently building a shortlist of interested candidates. Formal, confidential discussions (under NDA) will begin after September 26th. This role will be secured via a Letter of Intent (LOI), which will activate upon the successful close of our pre-seed funding. If you are a UK-based developer who is excited by a complex technical challenge and the opportunity to build a product from the ground up, we would love to hear from you.

 

To Apply:

Please send a link to your GitHub profile or portfolio to admin@realmbridge.co.uk.

Tagged as: Full stack, hardware engineering, new product development, SaaS, Software Developer, Software Engineering, start up, Tech, UI/UX Design

Upload your CV/resume or any other relevant file. Max. file size: 128 MB.
I consent to my submitted data being used for the purposes of applying to this job

Land your next job at a startup!

Join 12,000+ talented job hunters who receive our weekly startup email, containing tips to help with your job search and all the latest job posts.

Add job interests to get daily alerts

Footer

Career advice & articles

  • Applying for Startup Jobs
  • Curated Career Advice
  • Finding Startup Jobs
  • Graduate Startup Jobs
  • Interviews
  • Life working at… series
  • Marketing
  • Productivity
  • Startup Hiring
  • Working in Startups

Browse jobs directory

  • Jobs by City
  • Jobs by Skills
  • Birmingham Startup Jobs
  • Brighton Startup Jobs
  • Bristol Startup Jobs
  • Cambridge Startup Jobs
  • Edinburgh Startup Jobs
  • Graduate Startup Jobs
  • Internships
  • Leeds Startup Jobs
  • London Startup Jobs
  • London Startup Internships
  • London Web Developer Jobs
  • Manchester Startup Jobs
  • Oxford Startup Jobs
  • Southampton Startup Jobs

Important Links

  • Contact
  • Grow your team
  • Employer newsletter
  • Land your next job
  • Salaries
  • Blog
  • Resource Directory
  • Privacy & Cookies
  • Terms
  • Facebook
  • LinkedIn
  • RSS
  • Twitter

© Copyright · UK Startup Jobs