Android Developer

Machine Learning Technologies, LLC; New Jersey; On-site; USD 150,000 - 210,000; Full time

Job summary

Machine Learning Technologies, LLC is seeking a Lead Android Engineer in New Jersey to drive design, architecture, and delivery of scalable Android applications. You will mentor peers, shape technical direction, and ensure high-quality mobile experiences.

You will work with Kotlin, Java, Jetpack Compose, and modern Android patterns in an enterprise setting, integrating REST/GraphQL APIs, payment gateways, and CI/CD pipelines within an Agile team.

Qualifications

• Experience building scalable Android applications for enterprise environments.
• Strong knowledge of Kotlin and Java in Android development.
• Familiarity with modern Android architectures (MVVM, Clean Architecture).
• Proficiency with Jetpack libraries (Compose, Room, WorkManager, Navigation).
• Experience with API integration (REST/GraphQL) and networking libraries (Retrofit, OkHttp).
• Experience with CI/CD pipelines and automated testing.

Responsibilities

• Lead Android application design, development, architecture, testing, and production support.
• Develop applications using Kotlin, Jetpack Compose, Coroutines, Flow, AndroidX, Hilt/Dagger, and Room.
• Integrate REST/GraphQL APIs, Retrofit, OkHttp, OAuth, and backend services.
• Work on mobile payments, checkout, POS, and payment gateway integrations.
• Implement performance optimization, automated testing, and production monitoring.
• Build and maintain CI/CD pipelines using GitHub Actions, Jenkins, Gradle, Fastlane, or Firebase.
• Conduct code reviews, mentor developers, and provide technical leadership.
• Collaborate with Product, UX, QA, and Backend teams in an Agile/Scrum environment.

Skills

Kotlin

Java

Jetpack Compose

Android SDK

MVVM

Clean Architecture

Coroutines

Flow

Hilt/Dagger

REST/GraphQL

Retrofit

Room

JUnit/MockK/Espresso

Git

CI/CD

Android performance

Job description

Job Summary: We are looking for a Lead Android Engineer with strong experience building scalable, enterprise-grade Android applications using Kotlin, Java, Jetpack Compose, Android SDK, MVVM, and Clean Architecture.

Key Responsibilities

• Lead Android application design, development, architecture, testing, and production support.
• Develop applications using Kotlin, Jetpack Compose, Coroutines, Flow, AndroidX, Hilt/Dagger, and Room.
• Integrate REST/GraphQL APIs, Retrofit, OkHttp, OAuth, and backend services.
• Work on mobile payments, checkout, POS, and payment gateway integrations.
• Implement performance optimization, automated testing, and production monitoring.
• Build and maintain CI/CD pipelines using GitHub Actions, Jenkins, Gradle, Fastlane, or Firebase.
• Conduct code reviews, mentor developers, and provide technical leadership.
• Collaborate with Product, UX, QA, and Backend teams in an Agile/Scrum environment.

Required Skills

• Kotlin, Java, Jetpack Compose, Android SDK, MVVM, Clean Architecture, Coroutines, Hilt/Dagger, REST/GraphQL, Retrofit, Room, JUnit/MockK/Espresso, Git, CI/CD, and Android performance optimization.

Preferred

• Payments/POS, BLE/IoT, Firebase, A/B testing, and consumer-facing mobile applications.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.