iOS Developer (Global Sport)

Two Circles; City Of London; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

A dynamic sports marketing firm in London is seeking a proficient iOS Developer to create and maintain high-quality native applications. This role focuses on Swift and SwiftUI, emphasizing delivery and collaboration within hybrid working conditions. The ideal candidate possesses a strong understanding of scalable app architectures and agile methodologies, with a passion for user-centered design and quality. This position offers an attractive benefits package and a collaborative team environment.

Benefits

Discretionary Bonus based on company performance

Private healthcare

Gym membership contribution

23 days holiday plus additional days off

Qualifications

• Proven expertise in Swift and SwiftUI with multiple apps in production.
• Strong understanding of scalable app architectures like MVVM-C.
• Experience in CI/CD environments with essential development tools.

Responsibilities

• Build and maintain high-quality native iOS applications.
• Develop end-to-end mobile features collaborating with various teams.
• Contribute to architectural decisions for scalability and performance.

Skills

Swift

SwiftUI

UI/UX Design

CI/CD

Agile Development

Tools

Bitrise

CircleCI

GitHub Actions

Azure DevOps

Job description

About Us:

Two Circles – Job Description Summary

We are Two Circles. We are a Sports & Entertainment Marketing business. We grow audiences and revenues. We do that by knowing fans best. We work with clients to help them understand & influence what their fans are doing – the way fans spend their money, the events that fans attend, the channels fans respond to, the content fans watch and more. And we use the understanding this gives us to help our clients grow. Grow their audiences and grow their revenues - both direct to consumer and business to business revenues. Our platforms and services are trusted by over 1000 clients globally, including the English Premier League, Red Bull, UEFA, VISA, the NFL, Nike and Amazon. We are over 1000 people, based out of 15 offices, and we deliver work for sports and entertainment businesses of all shapes and sizes all over the world.

• Build and maintain high-qualitynative iOS applicationsusingSwift and SwiftUI, with a focus on fast delivery and maintainable architecture.
• Work closely with internal teams and client stakeholders to develop end-to-end mobile features that align with product goals and timelines.
• Contribute to architectural decisions in collaboration with senior engineers — with a strong emphasis on scalability, testability, and performance.
• Collaborate with cross-functional squads (designers, PMs, QA, backend) to ship new features to live apps used by sports fans worldwide.
• Ensure a high standard of quality through code reviews, testing, and engineering best practices.
• Join a hybrid working environment, with 2 days per week in our London office to enable strong collaboration on fast-moving projects.

What We’re Looking For

• Proven expertise in Swift and SwiftUI, ideally with multiple apps shipped to the App Store or in production use.
• Strong understanding of scalable app architectures (e.g. MVVM-C, TCA, modularisation, dependency injection).
• Passion for delivering high-quality UI/UX that adapts well across screen sizes and device types.
• Comfortable working in CI/CD environments, using tools like Bitrise, CircleCI, GitHub Actions, or Azure DevOps.
• Hands‑on experience with agile development practices, and a pragmatic approach to testing including unit, integration, and UI testing.

Nice To Have

• Experience working on sports, media, or gamification apps, particularly those with high user engagement or real‑time data.
• Familiarity with live data integration, streaming APIs, or event‑based user experiences.
• Personal passion or understanding of sports

What can we offer you?

We offer a benefits package to suit you and your lifestyle! Out of a core monthly budget, you can choose your own comprehensive benefit package.

• Renowned Team Days often throughout the year
• Summer Away Days
• 23 standard days of holiday (+1 Birthday, +1 Well‑being Day, +1 'Big Life Event', and +1 Admin Day), closure of office over Christmas (plus Bank Holidays)
• Discretionary Bonus based on company performance
• Performance Reviews every 6 months with discretionary salary increases
• Private healthcare (Vitality) and/or Health Care Plan (Medicash)
• Mobile phone contribution
• Sport Challenge contribution
• Gym membership contribution
• 2 x annual kit drops