Senior Android Engineer Stockholm

About Justera Group
Justera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in todays rapidly changing economy. The company has deep expertise in IT consultancy software development and recruitment services providing clients with purpose-driven well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle from hiring to ongoing management ensuring the right fit for each project on time and within budget. With their strong commitment to quality collaboration and client success Justera Group is a trusted partner for technology innovation across Sweden.

About the Role:
We are looking for a Senior Android Engineer to join a mature mobile application that is currently undergoing a significant modernization.

The Android application is built with Kotlin and is transitioning from traditional XML-based UI development to Jetpack Compose. The team is also adopting Kotlin Multiplatform (KMP) as part of its long-term mobile architecture enabling shared business logic across Android and iOS while maintaining native user interfaces on both platforms.

You will take ownership of the Android application ensuring continued stability and quality while helping drive the modernization forward.

Key Responsibilities:

• Take ownership of the Android application following a structured handover.

• Own Android releases application stability performance and overall quality.

• Continue the migration from XML-based UI to Jetpack Compose.

• Integrate and manage native components within Compose-based UI and lifecycle.

• Contribute to the shared Kotlin Multiplatform layer in collaboration with the iOS team.

• Investigate and resolve technical issues bugs and performance challenges.

• Document key technical areas architecture and processes.

• Support a smooth knowledge transfer to a permanent team member at the end of the assignment.

Requirements:

• 5 years of professional Android development experience.

• Strong hands-on experience with Kotlin.

• Excellent knowledge of Jetpack Compose and modern Android development practices.

• Strong understanding of modern Android architecture and application lifecycle.

• Proven experience maintaining and developing production applications with a significant user base.

• Solid understanding of Android stability performance debugging and release processes.

• Professional experience with Kotlin Multiplatform (KMP).

• Ability to work independently and take ownership of a mature codebase.

• Strong communication skills in English.

What We Offer:

• A dynamic and innovative workplace driving advancements in cutting-edge robotic technologies

• The opportunity to collaborate with talented cross-functional teams on meaningful and impactful projects

• Competitive compensation and comprehensive benefits package

• A supportive culture that fosters continuous learning growth and professional development

• Flexible hybrid working model for an optimal work-life balance

• 25 days of annual leave to recharge and relax

• An annual wellness allowance of 3500 SEK to support your health and wellbeing