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Staff iOS Software Engineer

Block

. Own the technical direction and delivery of a critical iOS product experience involving bitcoin and stablecoin .

Posted 11/5/2026full-timeRemote • California • United StatesLead💰 $263,600 - $395,400 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates extensive experience in building and maintaining native iOS products using Swift and Apple frameworks, with a strong focus on architecture, design reviews, and mentoring. Proven ability to lead technical direction and collaborate across teams in high-trust environments, particularly in financial services and cryptocurrency.

Highest-signal resume keywords
Native iOS DevelopmentSwift ProgrammingArchitecture and Design ReviewsTechnical MentoringCross-Platform Collaboration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
SwiftObjective-CSwiftUIUIKitSwift ConcurrencyCombineXcodeInstrumentsAutomated TestingContinuous Integration
Soft Skills
Technical CommunicationOrganizational InfluenceSystems Thinking
Tools & Technologies
Build SystemsTesting InfrastructureObservabilityFeature FlagsExperimentation Infrastructure
Industry Keywords
BitcoinStablecoinNon-Custodial WalletsFinancial ServicesHigh-Trust Environment

Tech Stack

Tools & technologies
AndroidiOSObjective-CSwift

About the role

Key responsibilities & impact
  • Own the technical direction and delivery of a critical iOS product experience involving bitcoin and stablecoin
  • Build products in iOS related to bitcoin, stablecoin, and non-custodial wallets
  • Work across interfaces in Cash App, Square, and Bitkey
  • Own complex features end to end, including client architecture, service integration, testing, rollout, and post-launch improvements
  • Work with product and design to shape customer journeys, prototype interactions, and create delivery plans
  • Build prototypes, reference implementations, and critical paths
  • Influence technical direction and sequence dependencies with adjacent teams
  • Improve architecture and shared components
  • Build automated testing, observability, and safe rollout practices with security, privacy, and compliance safeguards
  • Integrate and evaluate AI-assisted development tools
  • Contribute to codebases beyond iOS
  • Lead architecture and design reviews across team boundaries
  • Identify systemic risks and cross-cutting technical problems
  • Mentor engineers through design discussions, code reviews, and structured guidance
  • Set technical standards improving iOS development quality and velocity
  • Collaborate with engineers, product managers, designers, and engineering leaders
  • Work with Android, web, and backend engineers on shared foundations and cross-platform experiences
  • Represent bitcoin iOS in technical discussions and communicate complex decisions to technical and nontechnical audiences

Requirements

What you’ll need
  • 12+ years of professional software engineering experience, including 4+ years building native iOS products
  • Deep experience building, shipping, and maintaining native iOS products using Swift and Apple frameworks
  • Experience creating foundational systems, shared frameworks and tooling used widely on your team
  • A record of leading strategic initiatives with broad adoption and durable impact
  • Strong systems thinking, technical communication, mentoring, and organizational influence
  • Experience with Swift, Objective-C, SwiftUI, UIKit, Swift Concurrency, Combine, Xcode, and Instruments
  • Experience with build systems, continuous integration and delivery, testing infrastructure, observability, or mobile performance is ideally desired
  • Experience working in large, modular iOS applications, including existing UIKit or Objective-C codebases is ideally desired
  • Experience supporting customer-facing or seller-facing products in financial services, commerce, or another high-trust environment is ideally desired
  • Experience with experimentation infrastructure, feature flags, or large-scale product delivery is ideally desired
  • Experience working with bitcoin, stablecoin and non custodial technologies is ideally desired

Benefits

Comp & perks
  • Remote work
  • Medical insurance
  • Flexible time off
  • Retirement savings plans
  • Modern family planning
  • Reasonable accommodations for disabled applicants
  • Inclusive interview experience