Jobs › Fifth Third Bank

Senior Software Engineer - IOS Developer

Fifth Third Bank · Chicago, IL · Full time

Posted Sep 29, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you improved code quality in a codebase you didn't write.

What they are checking: Whether they contribute to continuous improvement without big risky rewrites.

How do you give code review feedback that helps a teammate grow?

What they are checking: Whether they contribute to a learning culture on an agile squad, as the posting asks.

What would you do

A crash spikes right after a release. How do you find and fix it?

What they are checking: Whether they use crash reporting, logs, and feature flags calmly and methodically.

A product owner wants a feature this sprint that you think needs more security review. What do you do?

What they are checking: Whether they raise risk openly and help find a safe path instead of silently cutting corners.

About the work

Walk me through how you'd structure a new feature in a large banking app, from architecture to tests.

What they are checking: Whether they use clear patterns like MVVM or similar and plan for testability from the start.

How do you decide between SwiftUI and UIKit for a new screen in an existing app?

What they are checking: Whether they weigh interoperability, team skill, and stability rather than following trends.

What do you do to protect sensitive data like account numbers and tokens in an iOS app?

What they are checking: Whether they know Keychain, secure storage, certificate pinning, and avoiding sensitive data in logs.

How do you handle concurrency in Swift, and what bugs have you seen from getting it wrong?

What they are checking: Whether they understand async/await, actors, and the main thread, and have debugged real race conditions.

How do you make sure your screens are accessible to customers using VoiceOver or large text?

What they are checking: Whether they treat accessibility as part of quality for a consumer banking app.

What's your approach to unit and UI testing in an iOS app?

What they are checking: Whether they write meaningful tests and understand where each kind of test pays off.

Practice this interview out loud.

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The full job description

As published by Fifth Third Bank.

Make banking a Fifth Third better® We connect great people to great opportunities. Are you ready to take the next step? Discover a career in banking at Fifth Third Bank. GENERAL FUNCTION: As a member of an agile squad, responsible for implementing new features and enabling capabilities using modern software engineering tools and practices. Adheres to practices and standards, set by communities of practice, and contributes to a culture of continuous improvement. Shares responsibility and accountability for risk by openly exchanging ideas and opinions, elevating concerns, and personally following policies and procedures as defined. Doing the right thing for customers and colleagues ensures that actions and behaviors drive a positive customer experience. Responsible and accountable for risk by openly exchanging ideas and opinions, elevating concerns, and personally following policies and procedures as defined. Accountable for always doing the right thing for customers and colleagues, and ensures that actions and behaviors drive a positive customer experience. While operating within the Bank's risk appetite, achieves results by consistently identifying, assessing, managing, monitoring, and reporting risks of all types. ESSENTIAL DUTIES & RESPONSIBILITIES: • Implement new features while maintaining overall quality of software· • Contribute to a culture of learning by documenting and sharing technical knowledge as a developer on an agile squad· • Participate in developer communities of practice by following best practices, participating in code reviews, and sharing knowledge· • Remain current on relevant technology trends· • Participate in researching and resolving customer issues· • Other duties as assigned SUPERVISORY RESPONSIBILITIES: None. MINIMUM KNOWLEDGE & SKILLS REQUIRED: • Bachelor's degree in Computer Science/Information Systems or equivalent combination of education and work experience. • Five+ years of IT work experience relevant to the position. • Strong problem solving skills. • Knowledge of object-oriented design and development experience with one or more of the following programing languages: • Swift • IOS API - Core Data / Networking / Grand Central Dispatch (concurrent programming) • Testing with XCTest • Accessibility best practices • Experience with version control solutions, preferably Git/GitHub • Experience with any of the following, a plus: • UX/UI design principles, Apple Human Interface Guidelines· • Experience with Design Systems and Design Systems Methodology· • AWS services • Gradle • Microservice design principles • Familiarity with relational databases and SQL • Nimble Testing Framework· • SwiftUI • CocoaPods Position not available for immigration sponsorship #LI-MB1 Senior Software Engineer - IOS Developer Total Base Pay Range 71,100.00 - 145,900.00 USD Annual At Fifth Third, we understand the importance of recognizing our employees for the role they play in improving the lives of our customers, communities and each other. Our Total Rewards include comprehensive benefits and differentiated compensation offerings to give each employee the opportunity to be their best every day. The base salary for this position is reflective of the range of salary levels for all roles within this pay grade across the U.S. Individual salaries within this range will vary based on factors such as role, relevant skillset, relevant experience, education and geographic location. In addition to the base salary, this role is eligible to participate in an incentive compensation plan, with any such payment based upon company, line of business and/or individual performance. Our extensive benefits programs are designed to support the individual needs of our employees and their families, encompassing physical, financial, emotional and social well-being. You can learn more about those programs on our 53.com Careers page at: https://www.53.com/content/fifth-third/en/careers/benefits.html or by consulting with your talent acquisition partner. LOCATION -- Cincinnati, Ohio 45202 Attention search firms and staffing agencies: do not submit unsolicited resumes for this posting. Fifth Third does not accept resumes from any agency that does not have an active agreement with Fifth Third. Any unsolicited resumes – no matter how they are submitted – will be considered the property of Fifth Third and Fifth Third will not be responsible for any associated fee. Fifth Third Bank, National Association is proud to have an engaged and inclusive culture and to promote and ensure equal employment opportunity in all employment decisions regardless of race, color, gender, national origin, religion, age, disability, sexual orientation, gender identity, military status, veteran status or any other legally protected status.

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