Senior Mobile Engineer (iOS/Android) – Full Ownership & Impact

biz4d; Germany (OH); On-site; USD 81,000 - 127,000; Full time

Benefits offered by this job

Agile work environment

International team

Professional growth opportunities

Company events

Job summary

biz4d is seeking a Mobile Engineer (iOS or Android) in Frankfurt to architect, design and deliver native mobile apps as we expand from E-commerce into tech solutions. You will own a full stack for mobile, collaborate in an international team, and contribute to modern DevOps practices.

You bring 5+ years in mobile development, Swift or Kotlin, and MBaaS experience with Firebase or Amplify. Fluency in English is required; German is a plus.

Qualifications

• 5+ years of experience designing, delivering and maintaining native Mobile Apps for end customers (B2C) on iOS/Android.
• Strong knowledge of CS fundamentals, OO design patterns and cloud-native concepts.
• Experience across full SDLC and DevOps practices, ideally in ecommerce.
• Proficiency in Swift for iOS and Java/Kotlin for Android.
• Experience with MBaaS platforms (Firebase/AWS Amplify).
• Experience with cross-platform frameworks (ReactNative/Flutter/Xamarin).
• CI/CD SaaS experience for native mobile apps is a plus.
• Deep understanding of RESTful APIs and mobile test-automation.
• Bachelor's degree in CS/Engineering or equivalent work exp.
• Self-organized with ownership mindset and strong analytical skills.
• Fluent in English; German a plus.

Responsibilities

• Architect, design and implement our mobile platform, supporting growth from E-commerce into tech solutions.
• Deliver Mobile Apps that serve as a primary touchpoint for customers with our new smart products.
• Integrate product features to deliver a delightful Customer Experience.
• Fully own, i.e. develop, maintain and operate (full DevOps) your team’s tech stack.
• Be a team player in an agile, empowered team and mentor engineers.
• Contribute to improving CI/CD and DevOps/SRE practices.
• Take part in recruitment processes to grow the tech team.

Skills

Swift

Kotlin

iOS native

Android native

MBaaS

Firebase

React Native

CI/CD

REST APIs

English fluent

German helpful

Education

Bachelor's degree in CS/Engineering

Tools

Firebase

AWS Amplify

GitHub/GitLab/Bitbucket

Job description

biz4d is seeking a Mobile Engineer (iOS or Android) in Frankfurt to architect, design and deliver native mobile apps as we expand from E-commerce into tech solutions. You will own a full stack for mobile, collaborate in an international team, and contribute to modern DevOps practices.

You bring 5+ years in mobile development, Swift or Kotlin, and MBaaS experience with Firebase or Amplify. Fluency in English is required; German is a plus.