Senior Software Engineer - iOS

Compare The Market; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Compare the Market is hiring a Senior Software Engineer (iOS) in London. You will steer technical direction for the iOS Mobile team, delivering high-quality mobile solutions, and collaborating with product managers, designers, and backend teams to align with business goals.

You will drive code quality, CI/CD practices, and stay abreast of emerging iOS technologies to optimize performance and user experience at scale.

Qualifications

• Proficient in iOS development using Swift, UIKit, and SwiftUI.
• Experience with MVVM-C architecture and clean code practices.
• Familiar with CI systems and unit testing (XCTest).
• Strong multi-threading and dependency injection experience.
• Experience consuming REST APIs and offline caching; familiarity with CoreData/Realm.

Responsibilities

• Design, build, and maintain high-performance iOS apps meeting reliability, scalability, and security standards.
• Collaborate with product, design, and backend teams to architect and deliver robust mobile solutions.
• Drive technical excellence via code reviews, mentorship, and best-practice adoption in mobile development, testing, and CI/CD.
• Evaluate and integrate emerging iOS technologies to optimize performance and developer productivity.
• Champion spec-driven development and AI-assisted coding with clear, testable specs and secure shipping.

Skills

iOS Swift UIKit

MVVM-C

CI

XCTest

Multithreading

REST APIs

CoreData/Realm

Clean coding

AI-assisted development

Job description

Senior Software Engineer (iOS)

Function: Technology

Location: London

Curious about what’s next?

So are we. Join Compare the Market and help to make financial decision making a breeze for millions.

At Compare the Market, we’re a purpose-driven business powered by tech and AI. We’re building high-performing, results-driven teams with the skills, mindset, and ambition to deliver outcomes at pace. Every role here plays a part in driving our mission forward, and we create an environment where you can bring your authentic self, grow a truly characterful career, and see the direct impact of your work on the lives of our customers.

We’ve carved a meerkat-shaped niche and we’re looking for ambitious, curious thinkers who thrive in a fast-moving, high-impact environment. If you love accountability, embrace challenge, and want to make a real difference, you’ll fit right in.

What you’ll be doing:

As a Senior Software Engineer (iOS) at Compare the Market, you will drive the technical direction within the iOS Mobile team delivering first class mobile solutions and contributing to an evolving culture of innovation, enthusiasm, and passion. You'll work in a team that's embracing agentic ways of working and spec-driven development, using AI tools to move faster while keeping quality, security and customer outcomes front and centre.

Design, build, and maintain high-performance iOS applications that meet our reliability, scalability, and security standards.

Collaborate cross-functionally with product managers, designers, and backend teams to define, architect, and deliver robust mobile solutions that align with business goals.

Drive technical excellence through code reviews, mentorship, and implementation of best practices in mobile development, testing, and CI/CD automation.

Continuously evaluate and integrate emerging iOS technologies to optimize performance, improve developer productivity, and enhance user experience at scale.

Champion spec-driven development and work alongside AI coding agents, writing clear, testable specifications and taking accountability for the quality and security of everything that ships.

What we’re looking for:

• Strong knowledge of iOS, Swift, UIKit, SwiftUI and related SDKs
• Experience in clean architectures (MVVM-C)
• Exposure to Continuous Integration systems
• Experience in writing Unit Tests (XCTest)
• Experience of multi-threading and dependency injection.
• Experience working with REST APIs and offline caching
• Exposure to databases (Realm/CoreData)
• An advocate of clean coding practices
• Experience of, or a strong appetite to learn, AI-assisted development, with good judgement about when to trust, challenge or discard AI-generated code

Why Compare the Market?

We’re a business built for pace and performance. Here, you’ll be encouraged to think differently, act boldly, and deliver brilliantly in a culture that values results and rewards progress.

We believe diverse teams make better decisions, and we’re committed to creating an inclusive workplace where everyone feels empowered to grow, contribute, and thrive.

If you’re ready to stretch yourself, raise the bar, and grow with a team that’s serious about performance, innovation, and purpose, we’d love to hear from you.