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Internship Flutter App Developer Jobs in Linden, NJ

Frontend Developer (Flutter; DeFi)

New York, NY · On-site +1

$113K - $132K/yr

New York Description We're looking for a mid-level to senior Flutter engineer who understands DeFi - not just how to build a beautiful mobile app, but how DeFi products (lending, staking, swaps ...

Experience with mobile app development (iOS and/or Android) * Strong understanding of OOP concepts and design pattern * Familiarity with Git and Jira * Good problem-solving skills * Fluent in English ...

As our first mobile app developer, you'll take the lead in implementing the first iteration of ... React Native, Android, iOS, Flutter * Will Transfer H1 Beyond prior mobile and front-end ...

As our first mobile app developer, you'll take the lead in implementing the first iteration of ... React Native, Android, iOS, Flutter * Will Transfer H1 Beyond prior mobile and front-end ...

As our first mobile app developer, you'll take the lead in implementing the first iteration of ... Practical experience building and deploying apps in Flutter * Basic understanding of platform ...

As our first mobile app developer, you'll take the lead in implementing the first iteration of ... Practical experience building and deploying apps in Flutter * Basic understanding of platform ...

Full Stack Engineer

New York, NY · On-site

$180K - $220K/yr

Why Ajax The problem Have you ever stood at engineering standup and struggled to recall what you ... Alex issued a native app update for our Flutter app that captured data more quickly when users task ...

Full Stack Engineer

Manhattan, NY · On-site

$180 - $230/hr

Why Ajax The problem Have you ever stood at engineering standup and struggled to recall what you ... Alex issued a native app update for our Flutter app that captured data more quickly when users task ...

Full Stack Engineer

Manhattan, NY · On-site

$180 - $230/hr

Why Ajax The problem Have you ever stood at engineering standup and struggled to recall what you ... Alex issued a native app update for our Flutter app that captured data more quickly when users task ...

Senior Product Designer

Manhattan, NY · On-site

$210 - $270/hr

Alex issued a native app update for our Flutter app that captured data more quickly when users task ... Our team is 12 people (5 engineers, 7 Go To Market) * We've raised $10mm in venture funding from ...

Senior Product Designer

Manhattan, NY · On-site

$210 - $270/wk

Who can operate independently as a designer and collaboratively with engineers... And can turn ... app update for our Flutter app that captured data more quickly when users task switch Roger ...

Senior Product Designer

Manhattan, NY · On-site

$210 - $270/wk

Who can operate independently as a designer and collaboratively with engineers... And can turn ... app update for our Flutter app that captured data more quickly when users task switch Roger ...

Senior Product Designer

Manhattan, NY · On-site

$210 - $270/wk

Alex issued a native app update for our Flutter app that captured data more quickly when users task ... Our team is 12 people (5 engineers, 7 Go To Market) * We've raised $10mm in venture funding from ...

Senior Product Designer

Manhattan, NY · On-site

$210 - $270/wk

Alex issued a native app update for our Flutter app that captured data more quickly when users task ... Our team is 12 people (5 engineers, 7 Go To Market) * We've raised $10mm in venture funding from ...

Software Engineer 3, Mobile

New York, NY · On-site +1

$160K - $185K/yr

Our mobile engineering teams build the digital products that deliver world-class storytelling and ... App Distribution). * Keep up to date with emerging Flutter/Dart libraries, patterns, and best ...

Senior Product Designer

New York, NY · On-site

$210 - $270/wk

Alex issued a native app update for our Flutter app that captured data more quickly when users task ... Our team is 12 people (5 engineers, 7 Go To Market) * We've raised $10mm in venture funding from ...

... Flutter).Experience with mobile app architecture patterns (e.g., MVC, MVVM, MVP).Knowledge of ... Proficiency in programming languages such as Swift, Kotlin, Java, or React Native. * Strong ...

Software Engineer 3, Mobile

New York, NY · On-site

$160K - $185K/yr

Our mobile engineering teams build the digital products that deliver world-class storytelling and ... App Distribution). * Keep up to date with emerging Flutter/Dart libraries, patterns, and best ...

Conduct thorough testing to identify and fix bugs, optimize app performance, and ensure seamless ... Flutter. * Experience with mobile development tools (Xcode, Android Studio) and APIs (RESTful ...

Conduct thorough testing to identify and fix bugs, optimize app performance, and ensure seamless ... Flutter. * Experience with mobile development tools (Xcode, Android Studio) and APIs (RESTful ...

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Internship Flutter App Developer information

What does an internship Flutter app developer do?

An Internship Flutter App Developer assists in designing, developing, and testing mobile applications using the Flutter framework. Their responsibilities typically include writing clean code, fixing bugs, collaborating with senior developers, and learning industry best practices. Interns often work on real-world projects, gaining hands-on experience with Dart programming and cross-platform app development. This role is ideal for students or recent graduates looking to start a career in mobile app development.

What types of projects or tasks can I expect to work on as an internship Flutter app developer?

As an Internship Flutter App Developer, you can expect to be involved in a variety of tasks, including creating user interfaces, fixing bugs, and adding features to existing apps. Many interns also participate in code reviews, collaborate closely with designers and backend developers, and test applications on multiple devices. This hands-on experience helps you build practical skills in app development, understand the agile development process, and learn how to work effectively within a development team.

What are the key skills and qualifications needed to thrive as an internship Flutter app developer, and why are they important?

To thrive as an Internship Flutter App Developer, you need a solid understanding of Dart programming, mobile app development concepts, and basic UI/UX design principles, typically supported by coursework or personal projects. Familiarity with the Flutter framework, Git version control, and Android Studio or Visual Studio Code is commonly required. Strong problem-solving, eagerness to learn, and effective communication set standout candidates apart. These skills and qualities enable interns to build functional apps, collaborate with teams, and quickly adapt to new challenges in a fast-evolving tech environment.

What is the difference between Internship Flutter App Developer vs Junior Flutter Developer?

AspectInternship Flutter App DeveloperJunior Flutter Developer
Required CredentialsBasic knowledge of Flutter, some coursework or self-studyProven project experience, some professional work
Work EnvironmentLearning-focused, entry-level, supervisedCollaborative team, responsible for specific tasks
Employer & Industry UsageInternship programs, startups, tech companiesTech firms, app development companies, startups

Internship Flutter App Developers are typically students or beginners gaining hands-on experience under supervision, while Junior Flutter Developers have some professional experience and handle more responsibilities independently. Both roles are common in tech industries, but internships focus on learning, whereas junior roles involve contributing to ongoing projects.

What are popular job titles related to Internship Flutter App Developer jobs in Linden, NJ?

For Internship Flutter App Developer jobs in Linden, NJ, the most frequently searched job titles are:

Frontend Developer (Flutter; DeFi)

KAST

New York, NY • On-site, Remote

$113K - $132K/yr

Full-time

Re-posted 23 days ago


Job description

Frontend Developer (Flutter; DeFi)
Department: Engineering
Employment Type: Full Time
Location: New York
Description
We're looking for a mid-level to senior Flutter engineer who understands DeFi - not just how to build a beautiful mobile app, but how DeFi products (lending, staking, swaps, savings, and self-custody wallets) actually work on-chain. You'll build consumer-facing DeFi products end to end, translating complex on-chain flows into interfaces that are clear, trustworthy, and delightful.
You'll collaborate closely with backend, product, and design to ship money-movement features that are secure and reliable.
Location: remote from the US.
What You'll Be Doing
  • Build and own consumer-facing DeFi features in the KAST mobile app, end to end.
  • Translate DeFi concepts (lending, swap, borrowing) into clear, trustworthy mobile UX.
  • Integrate with backend services and handle secure, multi-step money-movement and transaction authorization flows.
  • Handle wallet, signing, and transaction states - pending, submitted, confirmed, failed - with robust error handling and user feedback.
  • Contribute to a clean, well-tested mobile architecture and shared component patterns.
  • Write testable, maintainable code and participate in code review and release quality.
  • Collaborate with product and design to shape requirements into shipped features.

What You'll Bring
  • 2+ years of production mobile development with Flutter, or 3+ years with ownership of shipped consumer apps.
  • Hands-on DeFi experience is required - you have built, integrated, or worked closely with on-chain protocols (lending/borrowing, staking, swaps, or wallets) and understand concepts like collateral, LTV, health factor, and gas/network fees.
  • Strong command of Flutter fundamentals: state management, navigation, clean architecture, and dependency injection.
  • Experience consuming REST APIs, handling auth tokens, and managing complex asynchronous and multi-step transaction flows.
  • Solid understanding of mobile security best practices (secure storage, sensitive data handling, MFA flows).
  • Comfortable with Git-based workflows, code review, and shipping to the App Store / Play Store.

Nice to have
  • Experience integrating with DeFi lending, staking, or swap protocols on any major chain.
  • Familiarity with embedded/MPC wallet providers or self-custody / key import-export flows.
  • Experience in fintech, neobanking, or regulated financial products.
  • Exposure to mobile analytics/observability and CI/CD.
  • Contributions to shared Flutter packages or a modular multi-app codebase.