Senior iOS Engineer - Mobile Product Owner

About Quantum Base

Quantum Base has invented the Q-ID, a world-leading technology solution for anti-counterfeit, brand protection, and security printing. Q-IDs cannot be photocopied, can be put on anything, and can be authenticated with any smartphone. Our largest client is a prestigious security printer that is using Q-IDs for a government tax stamp programme. The first target markets are security printers, tax stamps, and brand protection. Quantum Base is 11 years old and was founded by Professor Robert Young at Lancaster University. Our mission is to create a new global standard. See them in action here: https://youtu.be/br-f15t-qtQ

About the Role

Mobile is the front door to the Q-ID. Every authentication, whether it’s a customs officer scanning a tax stamp, a partner embedding Q-ID verification into their own app, or a consumer checking a product is genuine, happens on a smartphone. These authentications happen in variable real-world conditions, on a wide range of devices.

The iOS Engineer will be responsible for productising research and development outputs, creating a robust and well-engineered app and SDK. They will bring skills across:

• Native iOS (Swift, SwiftUI, AVFoundation, Core ML, Vision)
• Mobile SDK distribution, for partners embedding Q-ID into their own apps
• Cross-platform integrations like .NET MAUI, React Native, and Flutter
• Integration with our AWS verification APIs

This is an exciting opportunity for someone who is looking to progress in their career and translate cutting-edge scientific research into a tangible, real-world product.

Ideal for a strong early-career or mid-level engineer who wants to grow into deep mobile product ownership.

Small mobile improvements (e.g., scan speed, false-reject rate, camera handling) have an outsized commercial impact and are often the difference between winning and losing a customer.

Location and Travel

You should be able to work from our Lancaster office at least 3 days a week and ideally 5 days a week.

What you'll be doing

• Building and maintaining iOS applications and SDKs in Swift
• Bridging native SDKs to cross-platform frameworks
• Collaborating with science and backend teams to integrate new capabilities
• Contributing to technical decisions and code reviews, and collaborating with Android colleagues

Key experience

• 2+ years’ commercial mobile software engineering experience, or equivalent strong project experience.
• Good hands-on experience building iOS apps in Swift.
• Comfortable integrating mobile apps with REST APIs.
• Solid engineering fundamentals: readable code, testing, debugging, maintainability, and sensible architecture.
• Interest in camera-based apps, computer vision, on-device ML, or scientific/technical products.
• Comfortable using modern AI coding tools, or keen to adopt them.

Nice to have experience

• SwiftUI, AVFoundation, Core ML, Vision.
• Mobile SDK distribution.
• Bridging native SDKs into React Native, Flutter, or .NET MAUI.
• CI/CD, staged rollouts, crash/performance analytics.
• Computer vision, image processing, applied ML.
• Physics/maths/science background.

Interested in relocating to United Kingdom? Check out our comprehensive Relocation Jobs in United Kingdom page with detailed relocation packages and benefits.

Benefits

We're continually updating and improving our benefits. Some of our benefits include:

• 30 days annual leave (on top of public holidays)
• Relocation package available if you choose to move to Lancaster
• Great Tech: A brand new, hi-spec MacBook Pro
• Flexible Working Hours: We offer flexibility in your working hours
• Remote Working: We offer part-time remote working for all staff
• Cycle to Work Scheme: Significant savings when purchasing a bicycle through the business
• Pension
• Bonus
• Participation in the company share scheme

If you are a driven and ambitious professional ready to take your career to the next level, we want to hear from you.