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iOS Engineer

Hybrid
$170,000–$240,000
◆ 9/10 cryptofintechmobileweb3
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About this role

Join Rain as an iOS Engineer to lead mobile development for a global stablecoin payments platform. Work on innovative financial solutions and shape the future of borderless finance.

Description

Rain is the global stablecoin payments platform for enterprises, neobanks, platforms, developers, and AI agents. Our technology allows partners to move, store, and use stablecoins instantly and compliantly through global payment cards, rewards, on/offramps, wallets, and cross-border rails. As both a Visa and Mastercard Principal Member, Rain issues cards that work at more than 175 million merchant locations in over 220 countries and territories. Built natively for stablecoins and trusted by more than 100 organizations worldwide, Rain delivers secure, scalable infrastructure that makes money move freely and instantly around the world. You will have the opportunity to deliver massive impact at a hypergrowth company backed by some of the top investors in fintech, crypto, and SaaS. In January 2026, we closed a $250M Series C led by ICONIQ, valuing Rain at $1.95B, with Sapphire Ventures, Dragonfly, Bessemer Venture Partners, Galaxy Ventures, FirstMark, Lightspeed, Norwest, and Endeavor Catalyst also participating. If you're curious, bold, and excited to help shape a borderless financial future, we'd love to talk. Our Ethos: We believe in an open and flat structure. You will be able to grow into the role that most aligns with your goals. Our team members at all levels have the freedom to explore ideas and impact the roadmap and vision of our company.

Responsibilities

What you'll do:

  • Own the entire iOS development lifecycle, from architecture and implementation to App Store delivery.
  • Build polished, production-grade mobile apps that leverage Rain's issuance platform and APIs for clients and their end users.
  • Collaborate closely with product, design, and backend engineers to define the mobile roadmap and translate platform capabilities into intuitive native experiences.
  • Architect a clean, scalable codebase that can serve as the foundation as the mobile team grows.
  • Integrate with Rain's APIs for card issuance, transaction management, balance queries, and other payment flows.
  • Implement secure authentication, tokenization, and data handling appropriate for a financial services context.
  • Drive decisions on tooling, frameworks, CI/CD, and testing strategy for mobile.
  • Contribute to the broader engineering culture as an early team member with outsized influence on how we build.
Requirements

Qualifications:

  • 4–10 years of professional mobile development experience, with multiple apps shipped to the App Store.
  • Proficiency in Swift and deep familiarity with Apple's frameworks (UIKit, SwiftUI, Combine, Core Data, etc.).
  • Experience architecting iOS apps from scratch, foundational decisions on project structure, navigation patterns, state management, dependency injection.
  • Solid understanding of networking layers, RESTful API integration, and secure data handling.
  • A disciplined approach to code quality, write testable code, value code review, care about maintainability.
  • Comfort working autonomously with minimal direction.
  • Strong product sensibility, advocate for great user experiences.
  • Excellent communication skills, translate technical tradeoffs for non-technical stakeholders.
  • Experience in fintech, payments, or crypto/web3.
  • Familiarity with card issuance, wallet UX, or financial transaction flows.
  • Experience with WKWebView-based hybrid architectures or embedded SDK patterns.
  • Background in building white-label or multi-tenant mobile experiences.
  • Exposure to CI/CD tooling for iOS (Fastlane, Xcode Cloud, Bitrise, etc.).
  • Experience being the first or early mobile hire at a startup.
Conditions & Benefits

What the company offers:

  • Salary: $170K – $240K.
  • Offers Equity.
  • Offers Bonus.
Job Details
Salary$170,000–$240,000
LocationHybrid
AI Score★★★★★★★★★☆ 9/10
PostedAug 28, 2026 (10d ago)
Tags & Skills
cryptofintechmobileweb3Mobile Developerhybrid
Tech Stack
SwiftUIKitSwiftUICombineCore DataRESTful APICI/CDWKWebViewBitriseXcode CloudFastlane
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