Senior Mobile Developer (iOS & Android)

Title: Senior Mobile Developer (iOS & Android)

Location : East Elmhurst, NY (Onsite)

Duration : Contract

In-person interview is mandatory

Normal Business Days/Hours: Monday – Friday (9:00am - 5:00pm includes one-hour unpaid

lunch) - 35 hours work week. 35 hours work week

About the Role

The New York City Department of Correction is seeking a Senior Mobile App Developer for the Information Technology Division to build enterprise-grade mobile and web applications across native Android, native iOS, React Native, and ReactJS. This role is ideal for a senior engineer with strong mobile development experience, enterprise release knowledge, and secure authentication expertise.

Responsibilities

• · Design, build, test, and maintain native Android and iOS applications.

• · Develop cross-platform mobile features using React Native when appropriate.

• · Build responsive web experiences using ReactJS.

• · Integrate applications with backend services and RESTful APIs.

• · Collaborate with product, UX, backend, security, DevOps, and enterprise IT teams.

• · Participate in architecture planning, code reviews, troubleshooting, and production support.

• · Improve development workflows using CI/CD, automation, and responsible AI-assisted coding practices.

• Required Qualifications

• · 7+ years of software development experience, with significant experience in mobile application development.

• · Strong native Android experience using Java and/or Kotlin.

• · Strong native iOS experience using Swift and/or Objective-C.

• · Experience with React Native, ReactJS, and responsive web development.

• · Familiarity with MDM platforms, Workspace ONE, enterprise app distribution, and public app store releases.

• · Experience with GitHub, Azure DevOps, CI/CD pipelines, and release automation.

• · Strong understanding of application security, secure storage, API security, and authentication flows.

• · Experience with OAuth 2.0, OpenID Connect, SSO, MFA, and token-based authentication.

• · Strong understanding of RESTful API standards, API integration patterns, and error handling.

• · Familiarity with Vibe Coding, AI-assisted development tools, and best practices for reviewing and validating generated code.