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Itaú Unibanco

Senior Software Engineer – Mobile iOS, Identity and Authentication

Itaú Unibanco

Senior Software Engineer developing high-quality scalable iOS applications at Itaú Unibanco. Driving architectural decisions and collaborating with multidisciplinary teams in an AI-first context.

Posted 6/18/2026full-timeSão Paulo • 🇧🇷 BrazilSeniorWebsite

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Hard Skills
iOS developmentSwiftmobile architectureMVVMCoordinatorsDependency injectionModularizationFeature flagsUIKitSwiftUI
Soft Skills
technical leadershipinitiativecollaborationguiding architectural decisionsensuring code qualitydriving product evolution
Tools & Technologies
KeychainSecure EnclaveOAuth 2.0JWTDevice BindingREST APIsGraphQL APIsXCTestFirebaseCrashlytics
Industry Keywords
mobile application securityaccessibility best practicesobservabilitymonitoringdebuggingperformance optimizationCI/CDprocess automationGitHub Actions

Tech Stack

Tools & technologies
FirebaseGraphQLiOSSwift

About the role

Key responsibilities & impact
  • We are looking for a Senior Mobile Software Engineer with a focus on iOS to develop high-quality, scalable, and secure mobile applications.
  • This role requires strong technical leadership, initiative, and collaboration with multidisciplinary teams, being responsible for guiding architectural decisions, ensuring code quality, and driving the continuous evolution of products.
  • The position also requires the ability to work in an AI-first environment, using modern tools for AI-assisted development.

Requirements

What you’ll need
  • Strong experience in iOS development using Swift
  • Experience building applications with a focus on performance, scalability, and resilience
  • Experience with mobile architecture, including:
  • - MVVM
  • - Coordinators
  • - Dependency injection
  • - Modularization
  • - Feature flags
  • Experience building interfaces using UIKit and/or SwiftUI, with a focus on usability
  • Knowledge and application of accessibility best practices to ensure digital inclusion
  • Experience with mobile application security:
  • - Use of Keychain and Secure Enclave
  • - Implementation of authentication and authorization (OAuth 2.0, JWT, Device Binding)
  • Experience integrating REST and/or GraphQL APIs
  • Strong focus on code quality and automated testing:
  • - Unit and UI tests (XCTest)
  • - Software engineering best practices
  • Experience with observability and monitoring:
  • - Logs, metrics and tracing
  • - Tools such as Firebase, Crashlytics and App Store Connect
  • Experience with debugging and performance optimization:
  • - Use of Instruments
  • - Profiling and app behavior analysis
  • Experience with CI/CD and process automation (e.g., GitHub Actions)

Benefits

Comp & perks
  • Transportation voucher (commuter benefit)
  • Meal voucher (restaurants) / Grocery voucher (supermarkets)
  • Health plan (Fundação Saúde Itaú or Central Nacional Unimed)
  • Dental plan (Odontoprev or Interodonto)
  • Life insurance
  • PLR – Profit Sharing (subject to bank results)
  • Private pension plan
  • Exclusive discounts on our financial products
  • Extended maternity and paternity leave
  • Childcare / nanny allowance (for parents)
  • Education assistance
  • Wellhub or TotalPass
  • Access to Itaú leisure clubs (Guarapiranga / Itanhaém and São Sebastião)