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Contract Flutter App Developer Jobs in New York (NOW HIRING)

KAST

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 ...

Gorin Systems

Flutter Developer (Remote)

Brooklyn, NY · On-site +1

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 ...

Hired Recruiters

Mobile Engineer

New York, NY · On-site +1

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 ...

Injective Labs

Mobile App Developer

New York, NY · On-site +1

Injective provides an interoperable smart contracts platform that is optimized for building ... app, collaborating closely with Product, Design, and Backend Engineering teams to deliver a fast ...

Hired Recruiters

Mobile Engineer

New York, NY · On-site

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 ...

goTenna

Lead Flutter Engineer

Jersey City, NJ · Remote

$170K - $200K/yr

Lead Flutter Engineer Work Type: Remote (United States) About goTenna: goTenna is the world ... App Store using Cocoapods, Firebase, Gradle/Maven, Git, and Android studio developer tools Required ...

goTenna

Lead Flutter Engineer

Jersey City, NJ · Remote

$170K - $200K/yr

Lead Flutter Engineer Work Type: Remote (United States) About goTenna: goTenna is the world ... App Store using Cocoapods, Firebase, Gradle/Maven, Git, and Android studio developer tools Required ...

goTenna, Inc.

Lead Flutter Engineer

Jersey City, NJ · On-site +1

$170K - $200K/yr

... App Store using Cocoapods, Firebase, Gradle/Maven, Git, and Android studio developer tools ... Experience with Flutter development. * Experience developing multithreading apps, performance ...

Ajax

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 ...

Category Labs

Smart Contract Engineer

New York, NY · On-site +1

$180K - $250K/yr

You'll implement smart contracts that are well suited to the resources and throughput enabled by ... You'll identify needs in the app developer ecosystem and address them through close collaboration ...

Ajax

Design Engineer

New York, NY · On-site

$180 - $240/hr

An engineer with a design portfolio, or a designer with a github * With >2 years of experience ... Alex issued a native app update for our Flutter app that captured data more quickly when users task ...

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All JobsContract Flutter App Developer JobsContract Flutter App Developer Jobs in New York

Contract Flutter App Developer information

What is the difference between Contract Flutter App Developer vs Contract Android Developer?

AspectContract Flutter App DeveloperContract Android Developer
Required CredentialsProficiency in Dart, Flutter SDK, mobile app development experienceProficiency in Java/Kotlin, Android SDK, mobile app development experience
Work EnvironmentRemote or on-site, cross-platform developmentTypically on-site or remote, native Android development
Industry UsageUsed by companies seeking cross-platform appsUsed by companies focusing on native Android apps
Search & Comparison IntentOften compared for cross-platform capabilitiesCompared for native Android expertise

The main difference between a Contract Flutter App Developer and a Contract Android Developer lies in their development focus. Flutter developers create cross-platform apps using Dart, while Android developers specialize in native Android apps using Java or Kotlin. Your choice depends on whether you need a single codebase for multiple platforms or native Android performance.

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Contract Flutter App Developer jobs near you

Freelance Mobile App Developer (iOS / Android)

Mindrift

New York, NY • On-site, Remote

$60/hr

Part-time

Re-posted 4 days ago

Job description

Mindrift is looking for skilled Mobile App Developers (React Native, Flutter, Swift, or Kotlin) to join the Tendem project (https://tendem.ai/) and build native and cross-platform mobile applications for real-world use cases. In this role, you'll apply your mobile engineering expertise to build stable, performant, and user-friendly applications for iOS and Android. This part-time remote opportunity is ideal for professionals with hands-on experience shipping iOS and/or Android apps, working with platform APIs, and handling the full mobile development lifecycle.
What We Do
The Mindrift platform connects specialists with innovative technology projects. Our mission is to help develop high-quality AI technologies by combining real-world expertise from professionals across the globe with advanced AI development efforts.
About the Role
This is a freelance role for a Tendem project. As a Mobile App Developer, you'll design, build, and refine mobile applications across categories such as utilities, fitness/wellness, games, productivity, delivery, and content apps - for iOS, Android, or both, using native or cross-platform frameworks.
Key Responsibilities
  • Build mobile applications using React Native, Flutter, Swift (iOS), or Kotlin (Android).
  • Implement responsive mobile UIs that follow platform conventions (iOS HIG, Material Design).
  • Integrate native device features (camera, push notifications, location, storage, biometrics).
  • Connect apps to backend APIs, handle offline state, caching, and synchronization.
  • Implement monetization features where required (in-app purchases, ads, subscriptions).
  • Review, debug, optimize, and refactor mobile application code to improve correctness, performance, battery efficiency, and maintainability.
  • Debug platform-specific issues and prepare builds for distribution (TestFlight, Play Console).

Educational qualifications
  • At least 3 years of relevant experience in mobile app development (required).
  • Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus.

Academic and/or Professional Experience
Candidates should have a strong foundation in mobile application development, platform-specific UI/UX patterns, and building stable, high-quality mobile experiences for iOS and Android. We are looking for specialists who can confidently work with native or cross-platform frameworks, integrate device APIs and backend services, and build production-ready mobile applications. Strong attention to detail, performance awareness, and the ability to work independently are essential.
Technical Skills (Essential)
  • Hands-on experience with at least one of: React Native, Flutter, Swift/SwiftUI (iOS), or Kotlin/Jetpack Compose (Android).
  • Solid understanding of mobile UI patterns, navigation, state management, and platform guidelines.
  • Experience integrating REST APIs, handling async data, and managing local storage.
  • Familiarity with native device APIs (notifications, camera, location, storage, biometrics).
  • Experience with mobile build tools, code signing, and submission to App Store / Google Play.
  • Experience implementing in-app purchases, ads, or subscriptions is a plus.
  • Familiarity with backend services such as Firebase, Supabase, or similar is a plus.

Additional requirements
  • Strong attention to detail and commitment to performance, stability, and platform polish.
  • Self-directed work ethic with the ability to ship complete mobile features independently.
  • Portfolio of shipped mobile apps (required, with App Store / Google Play links preferred).
  • English proficiency: Upper-intermediate (B2) or above (required)

Project time expectations
For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.
Compensation
On this project, contributors can earn up to $60 per hour equivalent, depending on their level and pace of contribution.
Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.
Why this freelance opportunity might be a great fit for you?
  • Work fully remote on your own schedule with just a laptop and stable internet connection.
  • Apply your expertise to real-world technology projects while gaining experience building high-quality solutions for a global platform.
  • Participate in performance-based bonus programs that reward high-quality work and consistent delivery.

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