Senior Mobile Engineer (React Native)
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Before you apply
Salary$210k – $270k
LocationNew York, NY, New York, United States
Work modehybrid
Typefull-time
SenioritySenior
Experience5+ yrs
DepartmentEngineering
EquityIncluded
Company size5+ people
PostedJun 10, 2026 · 5mo ago
Verified live14h ago
At a glanceSummarised by Seekless from the posting.
Demonstrated technical excellence through previous work and shipped high-quality mobile applications at scale
Strong experience building and maintaining production React Native applications
Proficiency in JavaScript and TypeScript
Deep understanding of mobile application architecture, state management, networking, performance optimization, and testing
Experience publishing and supporting applications on both iOS and Android platforms
Strong product sense and attention to user experience details
Fast learner who can quickly master new technologies and complex systems
5+ years of software engineering experience, including significant experience building mobile applications
Experience collaborating with designers, product managers, and backend engineers in fast-paced environments
Experience building financial, trading, fintech, or security-sensitive applications
Experience with native iOS (Swift) and/or Android (Kotlin) development
Experience with React Query, Redux, Zustand, or similar state management solutions
Experience building highly performant real-time applications
Experience working with crypto wallets, blockchain technologies, or DeFi products
Familiarity with CI/CD pipelines, automated testing, and mobile release processes
Experience mentoring engineers and influencing technical direction
Skills
React Native
JavaScript
TypeScript
Swift
Kotlin
React Query
Redux
Zustand
iOS
Android
CI/CD
Benefits
Unlimited PTO
Health insurance
Dental insurance
Vision insurance
401(k)
Paid parental leave
Wellness stipend
Commuter benefit
Phone stipend
Internet stipend
In office setup allowance
Home office allowance
Free meals
Team offsites
Team events
Build the Future of Global Markets
At Arcus, our mission is to empower anyone to build wealth by making investing accessible, affordable, and simple. The team behind Arcus previously built dYdX, helping power over $1.5 trillion in trading volume. Now we’re bringing the world’s financial markets onchain.
Built in partnership with Robinhood Chain and backed by a direct investment from Robinhood Crypto, Arcus brings crypto, stock tokens, commodities, and perpetual futures into one self-custodied account. Our vision is to build the world’s best spot and perpetuals exchange - trusted, accessible, and reliable, with deep liquidity and accurate prices. Every asset, 24/7.
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Experienced team: Google, Meta, Citadel, DRW, IMC Trading, Stripe, Coinbase, and more.
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Leading backers and advisors: Andreessen Horowitz, Polychain Capital, Brian Armstrong, Fred Ehrsam, Naval Ravikant, Elad Gil, and more.
Join us in shaping the next generation of global financial markets!
→ Learn more about working at Arcus
RESPONSIBILITIES:
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Build and enhance the Arcus mobile application using React Native
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Own end-to-end mobile features from architecture and implementation through testing, release, and ongoing maintenance
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Collaborate closely with designers and backend engineers to deliver intuitive and performant mobile experiences
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Help define the technical direction and architecture of our mobile platform
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Improve application performance, reliability, observability, and developer experience
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Work with technologies that directly interface with blockchain networks, wallets, and decentralized protocols
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Partner with cross-functional teams to deliver best-in-class trading experiences on mobile
REQUIREMENTS:
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You have demonstrated technical excellence through previous work and shipped high-quality mobile applications at scale
•
Strong experience building and maintaining production React Native applications
•
Proficiency in JavaScript and TypeScript
•
Deep understanding of mobile application architecture, state management, networking, performance optimization, and testing
•
Experience publishing and supporting applications on both iOS and Android platforms
•
Strong product sense and attention to user experience details
•
You are a fast learner who can quickly master new technologies and complex systems
•
5+ years of software engineering experience, including significant experience building mobile applications
•
Experience collaborating with designers, product managers, and backend engineers in fast-paced environments
NICE TO HAVES:
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Experience building financial, trading, fintech, or security-sensitive applications
•
Experience with native iOS (Swift) and/or Android (Kotlin) development
•
Experience with React Query, Redux, Zustand, or similar state management solutions
•
Experience building highly performant real-time applications
•
Experience working with crypto wallets, blockchain technologies, or DeFi products
•
Familiarity with CI/CD pipelines, automated testing, and mobile release processes
•
Experience mentoring engineers and influencing technical direction
BENEFITS:
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Unlimited flexible PTO and 11+ paid company holidays
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Company-paid medical, dental, and vision coverage
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401(k) with company match
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Paid parental leave
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$300/month wellness stipend
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$125/month commuter benefit and $200/month phone and internet stipend
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$1,700 in-office setup allowance plus up to $1,000 for home office
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Free lunch at the office and dinner post 6PM
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2 team offsites per year
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Team bonding events - restaurants, comedy shows, escape rooms, etc.
Salary range for this role is $210K to $270K (NY). Compensation subject to experience and location. Published salary bands pursuant to transparency laws, and do not include possible variable compensation such as annual merit increases, bonus eligibility, commission, or equity incentive.