Senior Mobile Developer

Harris Computer; Virginia (MN); On-site; USD 125,000 - 135,000; Full time

Job summary

Harris Computer is seeking an experienced mobile software engineer to design and implement scalable systems using Kotlin on Android and Swift on iOS, with strong MVVM or The Composable Architecture patterns and DI. Responsibilities include guiding architectural decisions, building declarative UI with Jetpack Compose and SwiftUI, and ensuring robust API integrations.

A Bachelor’s degree and 8+ years in software development are required, with cloud/microservices experience and a focus on code

Qualifications

• Bachelor's degree in Computer Science, Engineering, related field, or equivalent experience.
• 8+ years of software development experience, 3+ years as a Software Engineer focusing on scalable systems.
• Strong knowledge of software engineering principles, patterns, algorithms, and architecture.
• Ability to lead technical discussions and drive consensus; cloud and microservices experience.

Responsibilities

• Contribute to architectural discussions and align with business goals and best practices.
• Solve complex technical problems and guide technology choices and planning.
• Provide technical leadership and mentoring to junior developers.
• Conduct code reviews to ensure quality and adherence to standards.

Skills

Kotlin/Swift

Native UI

Architecture/DI

REST APIs

Testing frameworks

CI/CD

AI development

Prompt engineering

Education

Bachelor's degree

Job description

• Proficiency in Kotlin & Swift: Deep understanding of modern Kotlin (coroutines/Flow, serialization) and Swift (async/await), including the platform runtimes, memory management and concurrency.
• Native UI Frameworks: Experience building production UI with declarative frameworks — Jetpack Compose on Android and SwiftUI on iOS — including state management and lifecycle.
• Architecture & Dependency Injection: Experience with reactive, testable mobile architectures (e.g. MVVM, The Composable Architecture) and dependency injection frameworks such as Koin.
• RESTful API Integration: Experience designing and consuming robust, scalable REST APIs for third-party integrations and internal UI consumption (e.g. Retrofit/OkHttp on Android, URLSession on iOS).
• Testing Frameworks: Proficiency with mobile testing across the pyramid — unit, integration, and UI testing with tools such as JUnit, Mockito, Robolectric, Espresso, and Compose UI test on Android; XCTest and XCUITest on iOS.
• Mobile Tooling & CI/CD: Experience with automated, multi-target build and release pipelines (e.g. Gradle, Swift Package Manager, Bitrise, Fastlane), ideally for white-label / multi-tenant apps.
• Worked on AI assisted development (e.g. GitHub Copilot, Claude, Cursor or ChatGPT)
• Familiarity with AI directed prompt engineering for developing applications.

• Proficiency in Kotlin & Swift: Deep understanding of modern Kotlin (coroutines/Flow, serialization) and Swift (async/await), including the platform runtimes, memory management and concurrency.
• Native UI Frameworks: Experience building production UI with declarative frameworks — Jetpack Compose on Android and SwiftUI on iOS — including state management and lifecycle.
• Architecture & Dependency Injection: Experience with reactive, testable mobile architectures (e.g. MVVM, The Composable Architecture) and dependency injection frameworks such as Koin.
• RESTful API Integration: Experience designing and consuming robust, scalable REST APIs for third-party integrations and internal UI consumption (e.g. Retrofit/OkHttp on Android, URLSession on iOS).
• Testing Frameworks: Proficiency with mobile testing across the pyramid — unit, integration, and UI testing with tools such as JUnit, Mockito, Robolectric, Espresso, and Compose UI test on Android; XCTest and XCUITest on iOS.
• Mobile Tooling & CI/CD: Experience with automated, multi-target build and release pipelines (e.g. Gradle, Swift Package Manager, Bitrise, Fastlane), ideally for white-label / multi-tenant apps.
• Worked on AI assisted development (e.g. GitHub Copilot, Claude, Cursor or ChatGPT)
• Familiarity with AI directed prompt engineering for developing applications.

Responsibilities & Duties

• Contribute to architectural discussions, make design decisions, and ensure that the overall software architecture aligns with business goals and industry best practices.
• Solve complex technical problems and make critical decisions related to technology selection, system architecture, and project planning.
• Provide technical leadership and guidance to junior members of the development team.
• Conduct code reviews to ensure code quality, maintainability, and adherence to coding standards.

Requirements

• Bachelor's degree or Diploma in Computer Science, Engineering, related field, or equivalent work experience.
• 8+ years of experience in software development, and 3+ years as a Software Engineer with a focus on designing and building complex, scalable systems.
• Deep understanding of software engineering principles, design patterns, algorithms, and system architecture.
• Ability to lead technical discussions, make critical decisions, and drive consensus among team members.
• Experience with cloud technologies and microservices architecture.

Salary range: $125,000 - $135,000 USD per year.