Open projects

Mobile Developers (iOS and Android)

  • Contract Type: 6–12 months
  • Start: Early September
  • Allocation: 100%
  • Location: Helsinki, Finland (hybrid working model)
  • Language: Fluent English
  • Teams: SDK Augmentation / SDK Integration

Our customer is looking for experienced iOS and Android Mobile Engineers to contribute to one of two teams delivering their strategic SDK integration initiative. Whether you’re motivated by maintaining stable systems or building future-facing features, your work will directly help protect millions of users from scams and digital threats.

Key responsibilities:

  • Develop and maintain mobile components in iOS (Swift/Obj-C) or Android (Kotlin/Java)
  • Integrate SDK functionality into the mobile app
  • Resolve compatibility and platform stability issues
  • Build mobile-specific features like scam protection
  • Contribute to testing and CI/CD pipelines in mobile contexts

We’re looking for senior-level mobile developers with a strong track record in:

  • Native iOS or Android development (Swift/Obj-C or Kotlin/Java)
  • SDK integration and maintenance, OR feature-level app development
  • Debugging complex device/platform issues and optimizing performance
  • Working in cross-functional agile teams
  • Independently managing your area of responsibility and contributing to architectural discussions

This role is ideal for someone who has been a core contributor on platform or SDK teams, or who has experience working in high-stakes consumer app environments. You should be confident stepping into a fast-moving project and making an immediate impact.

A security background check will possibly be conducted for the selected candidate in accordance with Finnish Security Clearance act 726/2015.

More information from Juho -> juho_witted // juho.sopanen@witted.com

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