Mobile App Sr. Developer

ATS Client; Cape Town; On-site; ZAR 900,000 - 1,200,000; Full time

Job summary

ATS Client in Cape Town is seeking a Senior Mobile App Developer to design, develop, and ship mobile apps for iOS and/or Android. You will own features from concept to delivery, collaborating with designers, backend engineers, and product owners to create scalable experiences.

You bring a Bachelor's degree in CS/SE and proven mobile development experience, with strong RESTful API integration, UI/UX best practices, and proficiency in Git. Bonus points for Firebase, CI/CD, and published apps.

Qualifications

• Bachelor's degree in Computer Science or Software Engineering or equivalent.
• Proven hands-on experience in mobile app development.
• Strong RESTful API integration experience.

Responsibilities

• Design, develop, and ship mobile apps for iOS and/or Android.
• Collaborate with cross-functional teams to deliver features end-to-end.
• Maintain code quality with documentation and version control.
• Stay current with mobile UI/UX best practices.

Skills

Mobile app development

RESTful APIs integration

Git/version control

Problem solving

Education

BSc CS/SE

Tools

Android Studio

Xcode

Flutter

React Native

Xamarin

Job description

Senior Mobile App Developer

Location: Cape Town

Full‑time iOS / Android / Cross‑Platform

Ready to build mobile apps that make an impact? We're looking for a Senior Mobile App Developer who lives and breathes mobile tech – someone passionate about crafting beautifully designed, high‑performing applications that users love.

As a key contributor in our product engineering team, you will take ownership from concept to delivery, working closely with designers, backend engineers, and product owners to build scalable and innovative mobile experiences.

What you’ll do

• Design, develop, and ship mobile applications for iOS and/or Android
• Build new features end‑to‑end in collaboration with cross‑functional teams
• Ensure top performance, responsiveness, and exceptional user experience
• Troubleshoot, identify, and fix performance bottlenecks
• Integrate APIs and third‑party SDKs to enhance app capabilities
• Maintain high code quality through documentation, version control, and best practices
• Continuously explore and adopt the latest frameworks, tools, and trends

What you bring

• Bachelor's degree in Computer Science / Software Engineering (or equivalent experience)
• Proven hands‑on experience in mobile app development

Deep expertise in any of the following tech stacks:

• Android: Kotlin, Java, Android SDK
• iOS: Swift, SwiftUI, Xcode
• Cross‑platform: Flutter, React Native, Xamarin

Strong experience integrating apps with RESTful APIs

Understanding of mobile UI/UX best practices

Proficiency with Git or similar version control tools

Excellent problem‑solving, debugging, and attention to detail

Bonus points if you have

• Cloud experience (Firebase, AWS, Azure)
• Experience working with CI/CD pipelines
• Exposure to Agile methodologies
• Apps published on Google Play or the App Store