Sr Android Developer C2C jobs Mount Laurel, NJ – Onsite

Tech Mirrors; Mount Laurel Township (NJ); On-site; USD 120,000 - 150,000; Full time

Job summary

Tech Mirrors is looking for a Sr Android Developer based in Mount Laurel, NJ. This role requires extensive experience in Android application development, driving architecture, and making high-level design decisions. The developer will lead adoption of Jetpack libraries, integrate third-party SDKs, and implement responsive UIs.

The ideal candidate will have 8+ years of experience, strong Kotlin proficiency, and a proven track record of mentoring junior developers. Collaboration with cross-functional teams is essential.

Qualifications

• 8+ years of professional Android development experience.
• Advanced proficiency in Kotlin including Coroutines and structured concurrency.
• Strong understanding of software design patterns like MVVM and SOLID principles.

Responsibilities

• Drive architecture and development of complex Android applications.
• Lead technical direction for the team and make design decisions.
• Integrate third-party SDKs and ensure best practices.

Skills

Android development

Kotlin

Dependency injection

Jetpack libraries

CI/CD with Jenkins

Software design patterns

Unit testing

Git

Job description

Sr Android Developer

ONLY NJ LOCALS

Location: Mount Laurel, NJ – Onsite (Need Locals Only)

Duration: 6-10+ Months

Responsibilities

• Drive the architecture and development of complex Android applications ensuring scalability, maintainability, and performance.
• Make high‑level design decisions, enforce SOLID principles, and set technical direction for the team.
• Lead the adoption and implementation of Jetpack libraries and Jetpack Compose across projects.
• Oversee the integration of third‑party SDKs and ensure best practices in dependency management.
• Design and implement responsive UIs for a variety of device form factors (phones, tablets, foldables).
• Establish and maintain robust CI/CD pipelines using Jenkins and GitHub Actions.
• Champion code quality through rigorous code reviews, technical documentation, and test coverage (unit and UI).
• Mentor and guide junior developers, fostering a culture of continuous learning and improvement.
• Collaborate with cross‑functional teams to deliver features that meet business and user needs.

Required Skills

• 8+ years of professional Android development experience.
• Advanced Kotlin proficiency, including Coroutines, structured concurrency, extension functions, and higher‑order functions.
• Experience with dependency injection frameworks (e.g., Hilt, Koin).
• Custom Compose components and modifiers; modularization and multi‑module project structures.
• Strong error handling and functional programming concepts.
• Deep expertise in Android architecture components, Jetpack libraries, and Jetpack Compose.
• Experience implementing biometric authentication (e.g., fingerprint, face recognition, passkeys, FIDO2/WebAuthn) and Android Autofill.
• Strong understanding of software design patterns, MVVM, MVP, and SOLID principles.
• Proven experience integrating third‑party SDKs.
• Hands‑on unit testing (JUnit, Mockito) and UI testing (Espresso, UI Automator).
• Practical knowledge of CI/CD tools, especially Jenkins and GitHub Actions.
• Excellent communication, leadership, and mentoring skills.
• Proficient with Git and modern development workflows.

Nice to Have

• Experience with iOS development (Swift, Objective‑C).
• Knowledge of Kotlin Multiplatform (KMP).
• Exposure to cross‑platform mobile development.
• Familiarity with AI‑assisted development tools (e.g., GitHub Copilot) and prompt engineering.
• Experience integrating AI/ML features into mobile applications.