mobile

Android & Kotlin Development

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EltexSoft is an Android development company with senior Kotlin and Java engineers. We build native Android applications and JVM-based backends for clients including Teamworks, the $1.2B sports platform used by every NFL team.

Our Android developers work with Kotlin, Jetpack Compose, Room, Coroutines, and modern Android architecture. For server-side work, we use Kotlin and Java with Spring Boot.

What we build with Kotlin and Java

Native Android applications. Kotlin with Jetpack Compose, Room, Coroutines, and Hilt for dependency injection. Material Design 3 UI. CI/CD with GitHub Actions and Fastlane. From architecture to Play Store submission.

Spring Boot backends. REST APIs, microservices, and monolithic backends in Kotlin or Java. Spring Security, Spring Data JPA, and PostgreSQL. Deployed to AWS or GCP with Docker and Kubernetes.

Marketplace mobile clients. Buyer and seller apps connected to shared backend APIs. Real-time messaging, payments, and reviews. HeyTutor’s Android app has served users for 8 years.

Enterprise mobile tools. Field apps, inspection tools, and workforce management applications distributed via enterprise channels.

Legacy Java modernization. We migrate Java 8 applications to modern Java 21 or Kotlin. Monolith to microservices. Ant/Maven to Gradle. Incrementally, without downtime.

Our Kotlin/Java stack

For Android: Kotlin, Jetpack Compose, Room, Coroutines, Hilt, Retrofit, Material Design 3. Testing with JUnit 5, Espresso, and Mockk.

For backend: Kotlin or Java 21 with Spring Boot 3.x, Spring Data JPA, PostgreSQL, Redis, and Docker. Build tooling with Gradle. IntelliJ IDEA across the team.

Why hire Kotlin developers from EltexSoft

When you hire Kotlin developers from us, you get engineers from a studio with 11 years of production JVM experience. Our Android and backend developers work alongside our React/Vue frontend teams, our Python/AI team, and our DevOps engineers. Full-stack delivery from one partner.

Our Teamworks client ($1.2B valuation) relies on our Android engineering. HeyTutor has had the same mobile team for 8 years. We don’t rotate people.

FAQ

Common questions

Do you build with Kotlin or Java?
Kotlin for all new Android projects and most new server-side work. Java for maintaining existing codebases and enterprise integrations. Our developers are fluent in both.
Can you build for both iOS and Android simultaneously?
Yes. We run parallel iOS and Android teams with shared backend infrastructure. Same sprint, same features, coordinated releases.
Do you build Spring Boot backends?
Yes. Spring Boot for REST APIs, microservices, and enterprise backends. We use Kotlin or Java on the JVM depending on the project.
How much do Android developers cost?
Our rates are $50-99/hour on monthly retainer. A typical mobile team is 2 developers and 1 QA engineer.
How do I hire Kotlin developers from EltexSoft?
Contact us with your project details. We assign senior Kotlin/Java developers from our existing team. Most engagements start within 2-3 weeks.

Tell us what you're building.

One business day reply. From an engineer, not a sales rep.

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