Senior Mobile Engineer (Android)

Location: Hybrid in Berlin, Germany; only candidates local to the posting location will be considered.

Company

hirify.global provides mobile advertising, app discovery, delivery, and monetization solutions for telecoms, OEMs, app publishers, and advertisers.

What you will do

• Design, build, and maintain high-performance Android SDKs and on-device services, with iOS work as the cross-platform footprint grows.
• Improve package-manager reliability, dynamic app delivery, installation success, and recovery paths across fragmented devices and operating systems.
• Partner with OEM and carrier integration teams to ship features within platform, privacy, and resource constraints.
• Extend on-device surfaces for alternative app distribution and brand-on-device experiences.
• Own the full product lifecycle, including instrumentation, alerting, rollout strategies, A/B experimentation, monitoring, and on-call support.
• Improve code quality through reviews, automated testing, tooling, and mentoring.

Requirements

• 8+ years of experience building production mobile software.
• Deep Android expertise with Kotlin and Java, plus working knowledge of native internals.
• Strong understanding of asynchronous programming, concurrency, memory and battery profiling, data structures, and mobile design patterns.
• Experience shipping SDKs, libraries, or framework-level code consumed by other developers.
• Experience operating production software at scale, including monitoring, debugging field issues, and staged rollouts.
• Ability to work autonomously in an outcome-oriented engineering team.

Nice to have

• iOS development experience with Swift or Objective-C.
• Experience with AdTech, mobile measurement and attribution, or on-device ML inference.
• Familiarity with OEM and carrier pre-load constraints, Android system apps, or device-management contexts.
• Experience with alternative app stores or in-app purchase and payment flows.

Culture & Benefits

• Work on a small, autonomous team that owns products end to end.
• Responsibility spans design, release, monitoring, and on-call operations.
• Work on mobile infrastructure deployed across hundreds of millions of devices through leading OEMs and carriers.
• Collaborate across a global office network, including Berlin, London, Singapore, Tel Aviv, and United States locations.