Senior iOS Engineer
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Job Location:
Monthly Salary:
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Job Summary
Right now is one of the most exciting moments to join Popsa. Deloitte named us one of the UKs fastest-growing technology companies and the Financial Times recognised Popsa among the Top 5 fastest-growing software companies in Europe.
Were backed by world-class investors and the world is noticing. Our iOS and Android apps are available in 12 languages trusted by more than 12 million people who have created over 5 million photobooks shipped to 50 countries. With more than 350000 five-star reviews were one of the highest-rated consumer apps anywhere.
But the real story isnt the numbers its the memories behind them.
Were living in a time where we capture more photos than ever before. Billions of moments sitting unseen in camera rolls and clouds mixed with screenshots receipts or where we parked the car. We are great at documenting life but not so great at preserving the meaning in it.
Popsa is changing that.
Since launching in 2016 weve built an award-winning platform that removes every barrier to transforming your favourite memories into something beautifully tangible. No design skills. No time-sink. Just the joy of holding real stories in your hands. A celebration of the people and moments that make life worth living.
This is only the beginning.
Learn more about what its like to work at Popsa
Read about the technology were building
About the Role
Youll be building and improving a sophisticated memory curation platform that helps users discover their best moments and create beautiful personalised products automatically. The app intelligently curates photos from users libraries uses on-device ML for face recognition and photo analysis and renders high-fidelity 3D previews of physical products. Youll work across features spanning photo selection AI-assisted layout generation payment processing and immersive product visualisation.
Expertise
- Were primarily looking for recent experience developing high-quality consumer-facing iOS apps where finesse performance and delight are priorities.
- Strong experience developing production apps with Swift
- Deep understanding of UIKit architecture with growing proficiency in SwiftUI for building modern UI components in a hybrid codebase
- Familiarity with the Coordinator pattern for managing complex navigation flows
- Experience with MVVM and protocol-oriented design
- Understanding of the iOS app lifecycle including background tasks widgets and app extensions
- Proficiency handling resources permissions and responsive UI across device sizes
Mindset
- A problem-solving curious and inquisitive attitude
- Clear communicator with a keenness to work collaboratively
- Constructive approach to code reviews and architectural discussions
Nice to Have
- Experience with custom drawing Core Graphics or advanced UI animations
- Performance optimisation and profiling with Instruments
- Accessibility best practices and VoiceOver support
- Experience integrating on-device ML models (CoreML Vision)
- Background in 3D graphics or AR experiences
- Familiarity with localisation workflows for international apps
Tech Stack
- Architecture & data
- Swift Package Manager for modular dependency management
- Protocol Buffers for efficient data serialisation with our backend
- Core Data for on-device persistence
- Repository pattern for clean data access abstractions
- Concurrency & reactive programming
- Swift Structured Concurrency (async/await actors)
- Combine for reactive data flows and UI bindingsGraphics & visualisation
- SceneKit and ARKit for immersive 3D product previews
- Custom Metal shaders for advanced rendering effects
- Vision and CoreML for on-device photo analysis and face recognition
- Photo library integration
- Deep PhotoKit integration for accessing and analysing user photo libraries
- On-device ML models for face embeddings and photo quality scoring
- Smart album generation and photo metadata synchronisation
- Third-party integrations
- Firebase (Analytics Remote Config)
- Sentry for crash reporting and performance monitoring
- Stripe and Braintree for payment processing
- GrowthBook for feature flags and experimentation
- Nuke for high-performance image loading and caching
- CI/CD & quality
- GitHub Actions for automated linting testing and snapshot testing
- Xcode Cloud for continuous integration
- Fastlane for release automation
- SwiftLint for code style consistency
- Snapshot testing for UI regression prevention
To learn more about this role or the company contact us through youre the sort of person who cares about the detail and stays kind under pressure youll fit in.
We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.
Required Experience:
Senior IC
Key Skills
- APIs
- REST
- Design Patterns
- Objective C
- iOS Development
- Swift
- Application Development
- SDKs
- SQLITE
- IOS
- JSON
- Mobile Applications
About Company
Discover the fastest, easiest way to make a photo book, straight from your phone or tablet. Just pick your photos – our clever app creates the perfect layout instantly.
