Senior Native Mobile Engineer (iOS/Android) - Hybrid

Reaktor; Helsinki; Hybrid; EUR 90.000 - 120.000; Vollzeit

Zusammenfassung

Reaktor in Helsinki is seeking an experienced Senior Native Mobile Developer to join our Retail Business Unit across Europe. You’ll work on native iOS and Android apps, craft polished UI animations, and collaborate with clients, designers, and engineers to deliver robust mobile solutions.

Responsibilities include ownership of testing and production quality, contributing to architectural direction, and guiding teams through discovery, delivery, and integration work.

Qualifikationen

• Strong experience in native iOS development using Swift and/or Objective-C.
• Strong experience in native Android development using Kotlin and/or Java.
• A testing ownership mindset - you take responsibility for the full development cycle, from implementation to ensuring features are defect-free and shipped to users.
• Experience with production app monitoring and troubleshooting.
• Experience engaging with multiple stakeholders to solve challenging, ambiguous problems.
• Fluent verbal and written English to collaborate in an international environment.

Aufgaben

• Develop native mobile applications either iOS or Android.
• Build polished mobile UI experiences, including high-performance animations.
• Work on mobile SDKs, integrations, analytics, ads, or attribution frameworks depending on the client project.
• Collaborate with clients and stakeholders to clarify requirements, autonomously driving initiatives across the client organization and guiding technical and business teams in selecting the right technologies for their needs.
• Contribute to architectural decisions and long-term technical direction.
• Participate in discovery, concepting, and iterative delivery, not just implementation.
• Take ownership of testing, debugging, monitoring, troubleshooting, and production quality.
• Occasionally contribute beyond mobile when the project benefits from backend, API, or cloud infrastructure understanding.

Kenntnisse

iOS native

Android native

Testing ownership

Production monitoring

Stakeholder collaboration

English proficiency

Tools

Swift

Objective-C

Kotlin

Java

Jobbeschreibung

Reaktor in Helsinki is seeking an experienced Senior Native Mobile Developer to join our Retail Business Unit across Europe. You’ll work on native iOS and Android apps, craft polished UI animations, and collaborate with clients, designers, and engineers to deliver robust mobile solutions.

Responsibilities include ownership of testing and production quality, contributing to architectural direction, and guiding teams through discovery, delivery, and integration work.