Software Engineer III - iOS - Mid Level

Salary: £62,000 - 102,000 per year

Requirements:

• We require English working proficiency, as you will work with our team in London.
• You should have commercial experience in native iOS mobile application development.
• You should have strong object-oriented programming skills with Swift and Xcode.
• You should have strong analytical and problem-solving skills.
• You should have experience writing unit tests using the XCTest framework.
• You should have experience with MVVM + Coordinator and other architecture patterns such as SOLID.
• You should have knowledge of mobile design best practices, including human interface guidelines and threading.
• You should have good knowledge of core iOS libraries and frameworks such as UIKit, SwiftUI, Foundation, Security, and Combine.
• You should have experience with iOS application deployment, including testing, approval, and publishing to the Apple App Store.
• You should have experience with automated CI/CD processes and tools.
• You should have experience with monitoring and alerting to maintain a production application.
• You should have a good understanding of REST and working with APIs.
• You should have experience with Git flow.
• You should have good communication skills and be able to work well within a delivery team and with Product and Operations.
• You should be curious about new ways of working and open to different approaches and ideas.
• You should be proactive and willing to help others and contribute ideas.
• Nice to have: experience writing UI tests using XCUITest or another framework.
• Nice to have: experience building or working with design systems, including UI development and white-labelling.
• Nice to have: experience with modularisation and dependency injection.
• Nice to have: appreciation for accessibility and understanding of how to meet accessibility requirements.
• Nice to have: understanding of mobile application security considerations.
• Nice to have: experience with React Native.
• Nice to have: experience with feature flagging and A/B testing methodologies.
• Nice to have: experience in the FinTech sector.
• Nice to have: a Github, Stack Overflow, or app portfolio to share.

Responsibilities:

• Follow an Agile SDLC to develop and deliver product features for our native iOS Nutmeg application.
• Take ownership of tasks from estimation through release and post-production.
• Identify, troubleshoot, and resolve existing or newly identified prioritised defects.
• Write tests for all code you deliver and adhere to best practices and standards to ensure high-quality code.
• Take ownership of, or assist others with, bi-weekly releases and associated processes.
• Participate in code reviews to support high code quality and continuous learning.
• Share knowledge and participate in skill-share sessions across our iOS team and wider Engineering department.
• Propose, contribute to, and collaborate on technical initiatives to improve and evolve our codebase and toolset.
• Focus on solving the root cause of problems rather than only addressing symptoms.

Technologies:

• CI/CD
• Flow
• Git
• GitHub
• Support
• Mobile
• MVVM
• REST
• React
• React Native
• Security
• Swift
• UIKit
• Xcode
• iOS
• UX UI Design

More:

We are J.P. Morgan Personal Investing, offering award-winning investments, products, and digital wealth management services to more than 275,000 investors in the UK. We combine over 150 years of J.P. Morgan heritage with a straightforward, transparent approach to investing and a strong focus on innovation, helping customers gain the confidence and clarity to make informed investment decisions and achieve their financial goals. Our engineering teams work in collaborative tribes and squads, and we value curious, commercially savvy people who are passionate about building high-quality software with real impact. We are a global financial services leader committed to diversity and inclusion, and this role sits within our Cybersecurity & Technology Controls environment. This is a full-time role, and the team is based in London.

last updated 34 week of 2026