Senior Mobile Developer

New York Technology Partners; Wilmington (DE); Hybrid; USD 110,000 - 140,000; Full time

Job summary

New York Technology Partners is seeking an experienced Senior Mobile Developer to design, build, test, and maintain high‑quality Android applications using Kotlin. The role requires collaboration with product, design, backend, and QA to deliver reliable mobile solutions.

You will work with Jetpack Compose, MVVM/Clean Architecture, REST APIs, and modern Android tooling in a hybrid Portland, ME environment. This long‑term W2 contract emphasizes performance, security, and scalable architectures.

Qualifications

• Experience with Kotlin and native Android development.
• Strong knowledge of MVVM and Clean Architecture patterns.
• Proficient in Jetpack Compose and modern Android UI design.
• Experience integrating REST APIs and handling JSON authentication tokens.
• Implement offline caching strategies for responsive apps.
• Experience writing unit tests and performing UI tests.
• Ability to debug, profile performance, and resolve issues in production.

Responsibilities

• Design, develop, and maintain native Android apps using Kotlin.
• Build scalable, maintainable apps with Android SDK and modern architecture.
• Create responsive UIs following Material Design using Jetpack Compose.
• Integrate RESTful APIs and backend services into Android apps.
• Work with JSON, authentication, push notifications, and third‑party SDKs.
• Apply MVVM / Clean Architecture and design patterns; write clean, testable code.
• Write unit/UI tests and participate in code reviews; collaborate in Agile/Scrum teams.
• Ensure security, performance, and usability; support releases via CI/CD pipelines.

Skills

Kotlin

Jetpack Compose

MVVM / Clean Architecture

REST API Integration

Offline and Caching Strategies

Unit Testing

Debugging and Performance Profiling

Job description

**This is a W2 contract opportunity, so only candidates with independent visas and those eligible for H1B transfer to NYTP should be considered**

Job Title: Senior Mobile Developer

Location: Portland, ME (Hybrid – 2-4 days/week)

Job Id: 62667-1

Duration: Long term

Employment type: W2 Contract

Must-have Skills:

• Kotlin
• Jetpack Compose
• MVVM / Clean Architecture
• REST API Integration
• Offline and Caching Strategies
• Unit Testing
• Debugging and Performance Profiling

Job Description:

We are looking for an experienced Android Developer with strong Kotlin expertise to design, develop, test, and maintain high-quality Android applications. The ideal candidate will have hands‑on experience building scalable, secure, and high‑performance mobile applications using modern Android development practices. The candidate will work closely with product managers, UI/UX designers, backend engineers, and QA teams to deliver reliable and user‑friendly mobile solutions.

Key Responsibilities:

Design, develop, and maintain native Android applications using Kotlin. Build scalable and maintainable applications using Android SDK and modern Android architecture. Develop responsive and user‑friendly mobile interfaces following Material Design principles. Work with Jetpack components, including ViewModel, LiveData, Room, Navigation, and WorkManager. Implement modern UI using Jetpack Compose. Integrate RESTful APIs and backend services into Android applications. Work with JSON, authentication, push notifications, and third‑party SDK/API integrations. Implement MVVM / Clean Architecture and appropriate design patterns. Write clean, reusable, testable, and well‑documented code. Develop unit tests and UI tests and work closely with QA to resolve defects. Troubleshoot performance issues, crashes, memory leaks, and other production issues. Participate in code reviews and contribute to technical design and architecture discussions. Collaborate with cross‑functional teams in an Agile/Scrum environment. Ensure applications meet security, performance, scalability, and usability requirements. Support application releases through Google Play Store and CI/CD pipelines.