Senior Native Mobile Engineer — iOS & Android

Reaktor

Helsinki

Hybrid

EUR 90,000 - 120,000

Full time

6 days ago

Be an early applicant

Application generator

Don’t send a generic resume — generate a resume and cover letter tailored to this exact role.

Get past ATS filters

Job summary

Reaktor is seeking a Senior Native Mobile Developer to join the Retail Business Unit across Helsinki, Amsterdam, and Lisbon. You will lead native iOS and Android development, shaping polished UI, and integrating SDKs, analytics, and cloud components.

You will partner with clients and multidisciplinary teams to define requirements and set technical direction. Ideal candidates bring deep Swift/Objective-C and Kotlin/Java experience, ownership of the full development cycle, and strong English

Qualifications

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 and responsibility for the full development cycle.
Experience with production app monitoring and troubleshooting.
Ability to engage multiple stakeholders to solve ambiguous problems.
Fluent English in verbal and written form.

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 drive initiatives.
Contribute to architectural decisions and long-term technical direction.
Participate in discovery, concepting, and iterative delivery.
Own testing, debugging, monitoring, and production quality.
Occasionally contribute beyond mobile to backend, API, or cloud areas.