Mobile Software Developer

Project overview

We are looking for an experienced Mobile Developer with expertise in designing and implementing native applications for Android and iOS platforms. The role involves developing mobile applications using Swift and Kotlin, implementing integrations between systems using REST APIs, working with third-party software libraries and APIs, and producing technical documentation.

The consultant must be available to work in Helsinki at least once a month.

Key Responsibilities

· Design and implement native mobile applications for Android and iOS platforms.

· Develop iOS applications using Swift and Android applications using Kotlin.

· Implement integrations between systems using REST APIs.

· Use Android SDK and Android Studio for Android application development.

· Use iOS SDK and Xcode for iOS application development.

· Design and implement multithreaded mobile applications.

· Integrate third-party software libraries and APIs.

· Produce technical documentation for native mobile applications.

Required Experience

· At least 3 years of work experience in the software industry (mandatory).

· Experience designing and implementing native Android applications.

· Experience designing and implementing native iOS applications.

· Swift programming language.

· Kotlin programming language.

· REST API integrations.

· Android SDK and Android Studio.

· iOS SDK and Xcode.

· Multithreaded mobile application development.

· Experience using third-party software libraries and APIs.

· Technical documentation for native mobile applications.

Considered a Plus

· Swift UI

· Jetpack Compose

· BLE

· NFC

· Keychain / Android Keystore

· Experience with the EUDI Wallet ecosystem and its standards (iOS and Android).

Requirements

· Finnish - fluent (mandatory)

· English - fluent (mandatory)

Start date: 01.12.2026

Project details

TBC

Scope/hours per week: 100% allocation

Finland, Helsinki area. There must be readiness to come to the office at least once a month, otherwise remote option available.

Background check: The security clearance process will be initiated as soon as the consultant has been selected for the assignment, and the clearance must be approved before the work can begin.

Please apply with your updated CV, that clearly demonstrates your skills and experience relevant to this role. We offer continuously, which means that we sometimes remove the assignments before deadline. If you are interested we recommend that you apply immediately.

Contractor’s Obligations and Liability: Please note, should your candidate be selected for the assignment, Ework will request documentation in accordance with the Act on the Contractor’s Obligations and Liability (Tilaajavastuulaki), as well as proof of valid liability insurance.

PayExpress:

We now offer a fast and smooth payment solution, so you don't have to wait through long payment periods. With us, you will receive your payment within 3-5 days after your timesheet has been approved. This benefit is included as standard in almost all our contracts with no extra work on your part. Read more: https://knowledge.eworkgroup.com/payexpress-get-paid-within-days-not-months

• Start: 2026-12-01
• Remote: hybrid
• Location: Helsinki, Finland, FI
• Languages: Finnish, English