Lead Java Developer (Android application development)

Lead Java Developer (Android application development)

Location : Denver CO (Remote)

Job Type :  Full-Time / Contract ($60 to 65 / hr on W2 – No C2C)

Job Summary

We are seeking a skilled Lead Java Developer with strong Android application development experience to design, develop, and maintain high-quality mobile applications. The ideal candidate will have hands-on experience with Java, Android SDK, and backend integrations using Spring Boot and Kafka, along with a solid understanding of modern mobile architecture and Agile delivery practices.

Key Responsibilities

Lead Java Developer with strong Design, develop, test, and maintain Android mobile applications using Java, with backend integration using Spring Boot and Kafka

Collaborate with product managers, UX / UI designers, and backend teams to define and implement application features

Write clean, scalable, and efficient code following industry best practices and coding standards

Integrate RESTful APIs and third-party services

Ensure application performance, security, scalability, and responsiveness

Debug, troubleshoot, and resolve application and production issues

Participate in code reviews and ensure adherence to development standards

Support application deployment, monitoring, and ongoing maintenance

Work closely with stakeholders and actively participate in Agile / Scrum ceremonies

Required Technical Skills

Strong hands-on experience in Java

Extensive experience in Android Application Development

Proficiency with Android SDK, Android Studio, and Gradle

Experience working with Spring Boot and Kafka for backend / messaging integration

Hands-on experience with REST APIs, JSON, and XML

Knowledge of mobile architecture patterns : MVVM / MVP / MVC

Experience with SQLite, Room, or other mobile databases

Familiarity with Git or other version control systems

Strong understanding of mobile application security and performance optimization

Good to Have / Preferred Skills

Experience with Kotlin

Knowledge of CI / CD pipelines for mobile application development

Experience with Firebase, push notifications, and mobile analytics

Exposure to cloud platforms such as GCP or Azure

Experience publishing applications to the Google Play Store

Healthcare domain experience is a strong plus