Binance.US · 2 weeks ago
Sr. Software Engineer, Frontend (Flutter/iOS)
United States
Full-time
Remote
Senior Level
$200K/yr - $220K/yr
5+ years expBinance.US is America’s home to buy, trade, and earn digital assets, providing secure access to cryptocurrencies. The Sr. Software Engineer, Frontend (Flutter/iOS) will support the transition of the mobile platform to a unified Flutter/Dart codebase, collaborating with various teams to deliver high-quality mobile solutions.
CryptocurrencyFinancial ServicesInternetTrading Platform
Responsibilities
Maintain, enhance, and support our production native iOS application written in Swift
Collaborate on the design and development of a new Flutter/Dart codebase, ensuring performance and scalability
Build cross-platform mobile features in partnership with Android engineers, backend developers, and product teams
Contribute to shared tooling, CI/CD pipelines, and deployment workflows
Uphold high engineering standards and best practices throughout the hybrid mobile migration
Troubleshoot and resolve integration, compatibility, and performance issues in both native and cross-platform stacks
Provide mentorship to fellow mobile engineers, especially on iOS and native integrations
Qualification
Required
Maintain, enhance, and support our production native iOS application written in Swift
Collaborate on the design and development of a new Flutter/Dart codebase, ensuring performance and scalability
Build cross-platform mobile features in partnership with Android engineers, backend developers, and product teams
Contribute to shared tooling, CI/CD pipelines, and deployment workflows
Uphold high engineering standards and best practices throughout the hybrid mobile migration
Troubleshoot and resolve integration, compatibility, and performance issues in both native and cross-platform stacks
Provide mentorship to fellow mobile engineers, especially on iOS and native integrations
Preferred
5+ years of professional mobile development experience, including 3+ years of iOS development using Swift
At least 1-2 years of hands-on experience with Flutter/Dart or demonstrated ability to adopt new cross-platform technologies
Experience supporting production iOS apps through multiple OS cycles
Understanding of platform interoperability, including Flutter platform channels and native SDK integration
Proficiency in CI/CD and release workflows: Fastlane, App Store Connect, TestFlight
Familiarity with performance monitoring tools like Xcode Instruments, Flutter DevTools, and Firebase
Strong architectural judgment, especially in platform migrations or codebase rewrites
Bonus: Exposure to Android development (Kotlin) and full cross-platform transitions
Benefits
Unlimited PTO (for salaried FTE roles)
12 weeks fully paid Parental Bonding Leave
Mental wellness benefits
Free 1:1 virtual visits with a licensed mental wellness professional
Comprehensive competitive health benefits
Fully remote, cameras-on culture with work-from-home equipment reimbursements available to new hires
Annual professional development budget
Free 1:1 virtual visits with a career coach
401k plan with employer match
Company
Binance.US
Binance is a cryptocurrency exchange that provides a platform for trading various cryptocurrencies. It is a sub-organization of Binance.
201-500 employees
H1B Sponsorship
Binance.US has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (2)
2022 (3)
Funding
Current Stage
Growth StageTotal Funding
$200M2022-04-06Seed· $200M
Leadership Team
Leah Li
Chief of Staff & Head of Marketing
Recent News
Foundation Capital
2026-01-02
InsideBitcoins.com
2025-11-03
Company data provided by crunchbase