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

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)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

iOS developmentSwiftmobile architectureMVVMCoordinatorsDependency injectionModularizationFeature flagsUIKitSwiftUI

Soft Skills

technical leadershipinitiativecollaborationguiding architectural decisionsensuring code qualitydriving product evolution