Senior Native Mobile Developer - iOS/Android (Retail)

Reaktor; Helsinki; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Reaktor is seeking a Senior Native Mobile Developer to join our Retail Business Unit across Helsinki, Amsterdam, and Lisbon. You will drive native iOS/Android development, guide technical and business teams, and contribute to long-term mobile strategy in a low-hierarchy environment.

You will collaborate with clients to deliver polished mobile experiences, own testing and production quality, and engage in architecture discussions while exploring additional backend/cloud aspects when beneficial.

Qualifications

• Native iOS development with Swift and Objective-C.
• Native Android development with Kotlin and Java.
• Ownership of the full development cycle, including testing and shipping features.
• Experience with production monitoring and debugging.
• Ability to engage with multiple stakeholders to solve challenging, ambiguous problems.
• Fluent English in verbal and written communication for an international environment.

Responsibilities

• Develop native mobile applications for iOS and Android.
• Build polished mobile UI experiences with high-performance animations.
• Work on mobile SDKs, integrations, analytics, ads, or attribution frameworks.
• Collaborate with clients and stakeholders to clarify requirements and guide tech decisions.
• Contribute to architectural decisions and long-term technical direction.
• Participate in discovery, concepting, and iterative delivery beyond implementation.
• Own testing, debugging, monitoring, troubleshooting, and production quality.
• Occasionally contribute beyond mobile to backend, API, or cloud infrastructure understanding.

Skills

Swift & Objective-C

Kotlin & Java

Testing ownership

Production monitoring

Stakeholder collaboration

English proficiency

Job description

Reaktor is seeking a Senior Native Mobile Developer to join our Retail Business Unit across Helsinki, Amsterdam, and Lisbon. You will drive native iOS/Android development, guide technical and business teams, and contribute to long-term mobile strategy in a low-hierarchy environment.

You will collaborate with clients to deliver polished mobile experiences, own testing and production quality, and engage in architecture discussions while exploring additional backend/cloud aspects when beneficial.