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IT Services, Government Contracting, Consulting, Information Technology

Mobile App Developer Intern

Manassas, VAHybridInternshipJunior / Entry-levelPosted 9 days ago

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Required skills

  • React Native
  • Flutter
  • Swift
  • Kotlin
  • JavaScript
  • TypeScript
  • Dart
  • REST APIs
  • Unit Testing
  • Integration Testing

Nice to have

  • App Store
  • Google Play
  • GitHub portfolio
  • Supabase
  • Firebase
  • LLM APIs

Role summary

Sophinea, an AI and analytics firm, seeks a Mobile App Developer Intern to help build mobile applications that deliver AI and data capabilities. The intern will write production code, ship features, and learn professional software development practices. Responsibilities include building and testing features for iOS and Android using React Native, Flutter, Swift, or Kotlin; implementing UI/UX designs; connecting to backend services and APIs; writing tests; participating in code reviews and sprint planning using GitHub and Linear; and preparing builds for release. This paid, part-time, semester-long internship is hybrid in Manassas, VA.

Sophinea is an AI, data, and analytics firm in Manassas, Virginia, serving federal and commercial clients since 2018. We build AI products including Halo, our secure AI and analytics platform.

As a Mobile App Developer Intern, you'll help build mobile apps that bring AI and data capabilities to users on the go. You'll write production code, ship features, and learn how a professional software team plans, reviews, and releases work.

What you'll do:

  • Build and test features for iOS and Android apps using [React Native / Flutter / Swift and Kotlin]
  • Turn UI/UX designs into responsive, accessible screens
  • Connect apps to backend services and APIs, including AI and analytics services
  • Write unit and integration tests, and help fix bugs
  • Take part in code reviews, standups, and sprint planning using GitHub and Linear
  • Help prepare builds for testing and app store release

A typical day might include a team standup, building a feature from a ticket, opening a pull request for review, and pairing with a senior engineer on a tricky bug.

This is a paid, part-time, semester-long internship (about 10-15 hours per week), hybrid in Manassas, VA.

  • Currently enrolled in a bachelor's or master's program in computer science, software engineering, or a related field
  • Coursework or project experience building at least one mobile or web app
  • Programming experience in JavaScript/TypeScript, Dart, Swift, or Kotlin
  • Familiarity with Git and working in a shared codebase
  • Understanding of REST APIs and how apps fetch and display data
  • Able to work on-site in Manassas on hybrid days

Nice to have:

  • An app published to the App Store or Google Play, or a public GitHub portfolio
  • Experience with backend services such as Supabase or Firebase
  • Experience calling LLM APIs (Claude, OpenAI) from an app
  • Interest in mobile security and privacy practices
  • Paid internship
  • Flexible part-time schedule built around your class load
  • Hybrid work: on-site collaboration in Manassas plus remote days
  • Shipped code in real products, with mentorship from senior engineers
  • Hands-on experience with modern mobile, cloud, and AI tooling
  • Exposure to how AI products are built for federal and commercial clients
Ready to apply?
You'll be redirected to Sophinea Corporation's application page.

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