Senior iOS Engineer

Admiral Group Plc; Cardiff; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Up to £3,600 of free shares per year

33 days holiday (plus bank holidays)

Option to buy/sell additional five A/L

Great Place to Work recognitions

Job summary

Admiral Group Plc is seeking a Senior iOS Engineer to lead the iOS platform, own architecture and drive technical direction. You will mentor others and raise engineering standards while delivering high-quality mobile experiences at scale.

You will collaborate with Product, Design and Backend teams to shape requirements and APIs, participate in an Agile process, and help evolve our iOS applications with modern development practices.

Qualifications

• Proven experience delivering and scaling iOS applications in production environments.
• Strong experience in fast-paced, product-focused teams.
• Track record of building complex features and evolving app architecture.
• Mentoring engineers and influencing engineering direction.
• Hands-on experience with CI/CD and modern release pipelines.

Responsibilities

• Own and evolve the iOS application architecture for scalability and performance.
• Lead design and delivery of complex features and architectural improvements.
• Collaborate with Product, Design and Backend teams to define APIs and data contracts.
• Mentor engineers and foster high engineering standards.
• Contribute to rapid, iterative release cycles with CI/CD.

Skills

Swift

SwiftUI

UIKit

iOS SDK

MVVM

TCA

Clean Architecture

Networking

Data persistence

Caching

CI/CD

Code reviews

Testing

AWS

Azure

Tools

Bitrise

GitHub Actions

CircleCI

Job description

We are seeking a Senior iOS Engineer to take a leading role in building and evolving our iOS platform. This is a hands-on, high-impact role where you’ll drive technical direction, own critical architectural decisions, and deliver high-quality mobile experiences at scale.

Working within a cross-functional product team, you’ll collaborate closely with Product, Design, and Backend Engineering to build performant, maintainable, and user-centric iOS applications.

This role requires strong technical depth, ownership, and leadership, with the ability to influence engineering standards and mentor others.

Key Responsibilities

Technical Ownership & Architecture

• Own and evolve the iOS application architecture, ensuring scalability, performance, and maintainability.
• Lead the design and delivery of complex features and architectural improvements.
• Make pragmatic technical decisions, balancing user experience, speed, and long-term sustainability.
• Promote and enforce best practices across architecture, patterns, and code quality.

Engineering Excellence

• Write clean, efficient, and well-tested code using modern iOS development practices.
• Drive improvements in code quality, testing, and developer experience.
• Lead and contribute to code reviews, maintaining a high engineering bar.
• Evaluate and introduce new tools, frameworks, and approaches where appropriate.

Delivery & Collaboration

• Partner with Product and Design to shape requirements, user experiences, and technical solutions.
• Collaborate with Backend teams to define and optimise APIs, data contracts, and integrations.
• Contribute to a rapid, iterative release cycle supported by CI/CD.
• Participate actively in Agile processes, ensuring high-quality and predictable delivery.

Leadership & Mentorship

• Mentor and support other engineers, helping to raise overall team capability.
• Lead by example, fostering a high-performance and accountable engineering culture.
• Provide technical guidance and contribute to team and platform-level decision making.
• Act as a key iOS representative within the wider engineering organisation.

Continuous Improvement

• Identify and address technical debt, performance issues, and architectural gaps.
• Improve development workflows, tooling, and team processes.
• Stay current with emerging trends in iOS development.
• Contribute to long-term technical strategy and roadmap planning.

Required Experience

• Proven experience delivering and scaling iOS applications in production environments.
• Strong experience working in fast-paced, product-focused teams.
• Track record of building complex features and evolving app architecture.
• Experience mentoring engineers and influencing engineering direction.
• Hands-on experience with CI/CD and modern release pipelines.

Essential

Technical Skills

• Strong proficiency in Swift and modern iOS development.
• Experience with SwiftUI and/or UIKit.
• Deep understanding of iOS SDK, frameworks, and APIs.
• Experience with application architecture patterns (e.g., MVVM, TCA, Clean Architecture).
• Knowledge of networking, data persistence, caching, and synchronization.
• Strong debugging and performance optimisation skills.

Desirable

• Experience with The Composable Architecture (TCA).
• Familiarity with modularisation and multi-module apps.
• Experience with automated testing (unit, UI, snapshot tests).
• Knowledge of CI/CD tooling (e.g., Bitrise, GitHub Actions, CircleCI).
• Exposure to cloud-based architectures (e.g., AWS or Azure).
• Understanding of cross-platform or shared mobile architecture approaches.

What We’re Looking For

• Strong ownership mindset with a focus on outcomes and impact.
• Comfort operating in a hands-on, fast-moving environment.
• Excellent collaboration and communication skills.
• Passion for building high-quality products and improving engineering practices.
• Pragmatic, solution-oriented approach to problem-solving.

Admiral: Where You Can

We take pride in being a diverse and inclusive business. It's a place where you can Be You, and show up as you are. We’re committed to fostering a people-first culture where everyone is accepted, supported, and empowered to be brilliant. You can, Grow And Progress at a pace and direction that suits you, Make A Difference for our customers and each other, and Share in Our Future with all colleagues eligible for up to £3,600 of free shares each year after one year of service.

• up to £3,600 of free shares each year after one year of service.
• Everyone receives 33 days holiday (including bank holidays) when they join us, increasing the longer you stay with us, up to a maximum of 38 days (including bank holidays).
• You also have the option to buy or sell up to an additional five days of annual leave.
• Recognised as a Great Place to Work for Women, Great Place to Work for Wellbeing, and overall Great Place to Work for over 25 years.

Our fantastic benefits make sure our colleagues have a great work-life balance; You can view some of our other key benefits here.

Disability Confident Leader

As a Disability Confident Leader, for candidates with a disability or long-term health condition, that opt into the Disability Confident scheme, we’ll invite a fair and proportionate number of applicants that meet the essential requirements of the role to the first stage of our selection process.

If you need any adjustments or support with your application or during the recruitment process, just let us know. Please do email us. This number is dedicated to supporting candidates that require reasonable adjustments or support during the application process.