Senior Mobile App Developer (iOS + Android)
About the Project
We’re building a cross-platform photo editing app for iOS and Android with high-performance editing tools, advanced color grading, and a premium user experience similar to VSCO.
What You’ll Be Building
- Real-time image preview with advanced filters and LUT-based looks
- Custom sliders for exposure, contrast, temperature, grain, and halation effects
- RAW/DNG file import and editing
- GPU-accelerated rendering for smooth performance
- Before/After comparison toggle
- Cropping, aspect ratio adjustments, and export options
- Subscription-based monetization (monthly and yearly plans)
- User account system (optional cloud sync for presets and favorites)
Required Skills & Experience
- Proven experience building photo or video editing apps (portfolio or App Store / Google Play links required)
- Proficiency in Flutter or React Native (or native Swift / Kotlin)
- Strong understanding of GPU-based image processing (Metal, OpenGL ES, or similar)
- Experience with RAW/DNG decoding and processing
- Familiarity with LUTs, tone curves, and color grading pipelines
- Experience integrating in-app subscriptions and secure payment flows
- Strong UI/UX implementation skills for creative tools
- Ability to optimize for performance and memory usage on mobile devices
What We Provide
- Clear design direction and UI/UX mockups
- Defined feature set and roadmap
- Access to reference apps, technical requirements, and sample LUTs
- Ongoing feedback and collaboration
Contract Details
- Remote with flexible hours
- Competitive project-based or hourly rate
- Opportunity for ongoing work and feature expansions after initial release
How to Apply
Send the following to contact@retrofi.co:
- Links to apps you’ve built that include photo editing or image processing features
- Brief description of your experience with GPU rendering or similar technologies
- Your preferred tech stack (Flutter, React Native, or native)
- Your availability and estimated timeline for a project of this scope