Android Developer (Construction Tech)
About The Position
Join a product-focused team developing modern mobile solutions used daily by hundreds of thousands of users across construction sites worldwide. We are looking for a Middle Android Developer who is passionate about scalable mobile applications, clean architecture, and modern Android technologies. We at Sigma Software collaborate closely with a sustainable European Customer headquartered in Sweden to build digital products that improve workforce management, operational efficiency, and worker safety. You will become part of a mature engineering environment with strong technical expertise and close integration into the Customer’s organization. This is an opportunity to work on long-term product development, contribute to business-critical solutions integrating software and hardware technologies, and grow alongside experienced Middle and Senior engineers.
Requirements
- 3+ years of commercial experience in Android development
- Strong proficiency in Kotlin and modern Android development practices
- Hands-on experience with Jetpack Compose, Coroutines, Flow, Retrofit, and Android SDK
- Experience with MVVM and Clean Architecture approaches
- Solid understanding of software engineering fundamentals, including OOP, algorithms, data structures, and design patterns
- Experience with dependency injection and unit testing tools such as Mockito and JUnit
- Strong analytical and problem-solving skills
- Ability to independently drive feature development and technical solutions
- Strong communication and collaboration skills
- Intermediate or higher English level
- Bachelor’s degree in Computer Science, Computer Engineering, or equivalent practical experience
Nice To Haves
- Experience with Java, XML, and Android Data Binding
- Experience modernizing legacy Android applications
- Migration experience from XML-based UI to Jetpack Compose
- Experience transitioning legacy navigation approaches to Navigation Compose
- Experience with CI/CD pipelines and release automation
- Scripting and process automation experience
- Experience using AI-assisted engineering tools in development workflows
- Portfolio of published Android applications on Google Play or GitHub
Responsibilities
- Design, develop, and maintain Android applications using Kotlin and Jetpack Compose
- Participate in architecture discussions and technical decision-making
- Refactor, optimize, and modernize existing Android codebases
- Implement scalable and maintainable features following Clean Architecture principles
- Troubleshoot and resolve application issues and performance bottlenecks
- Integrate native Android capabilities including NFC, Bluetooth, and Camera SDKs
- Collaborate with cross-functional teams including iOS engineers, QA specialists, backend developers, and product stakeholders
- Participate in all phases of the software development lifecycle
- Contribute to code quality initiatives, peer reviews, and continuous improvement processes
- Support CI/CD and engineering automation initiatives
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
