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

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 ...

Warren, NJ Job Type: Long Term Contract Position: C2C Position 3+ years experience with: OOP design & background C/C++ and/or Java Mobile App Development DSP Preferred Experience with: OpenAL Android ...

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 ...

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 ...

Mobile App Developer

Manhattan, NY · On-site

$90 - $150/hr

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 ...

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 ...

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 ...

Smart Contract Engineer

Manhattan, NY · On-site

$180 - $250/hr

Spot unmet needs in the app developer ecosystem and address them in close collaboration with the ... contracts. * Prior blockchain engineering experience at a Layer 1, Layer 2, or infrastructure ...

Posted today

Smart Contract Engineer

Manhattan, NY · On-site

$180 - $220/hr

You'll identify needs in the app developer ecosystem and address them through close collaboration ... experience writing smart contracts in Solidity * You have prior experience in blockchain ...

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 ...

Contract Normal Business Days/Hours: Monday - Friday (9:00am - 5:00pm includes one-hour unpaid ... Conduct thorough testing to identify and fix bugs, optimize app performance, and ensure seamless ...

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Showing results 1-20

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.

What are the most commonly searched types of Flutter App Developer jobs in New York?

The most popular types of Flutter App Developer jobs in New York are:

What job categories do people searching Contract Flutter App Developer jobs in New York look for?

The top searched job categories for Contract Flutter App Developer jobs in New York are:

What cities in New York are hiring for Contract Flutter App Developer jobs?

Cities in New York with the most Contract Flutter App Developer job openings:

Frontend Developer (Flutter; DeFi)

KAST

New York, NY • On-site, Remote

$113K - $132K/yr

Full-time

Re-posted 21 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.