iOS Developer in London

We are hiring a Senior iOS Engineer to help build the future of a brand-new international iGaming operator as they launch across Europe and beyond. This is a genuinely rare opportunity to join an early-stage, heavily backed startup where mobile is at the centre of the product strategy.

As Senior iOS Engineer, you will take ownership of the iOS application architecture, engineering standards and future scalability of the mobile platform. You will work closely with the CTO and co-founders, influence technical direction and help define how mobile engineering evolves as the company scales internationally. This is not just a hands-on coding role. You will help establish best practices, improve quality, contribute to product thinking and work closely with external engineering partners whilst gradually increasing internal capability.

The company is heavily invested in automation, tooling and modern engineering practices. They run collaborative weekly learning sessions across the business and have created a genuinely curious, knowledge-sharing culture where engineers have a strong voice in shaping the future platform.

The iOS environment is modern and evolving, with a strong focus on scalability, maintainability and developer experience. You will work with technologies including:

• Swift
• SwiftUI
• Xcode
• Combine
• XCTest
• Snapshot Testing
• UIKit
• Reactive Programming
• Firebase
• GitHub

You are a Senior or Principal iOS Engineer with strong native iOS development experience in Swift. You have experience building modern, scalable iOS applications using contemporary Apple tooling and architecture patterns. You understand modern iOS principles including MVVM/MVI, reactive programming and clean architecture. You are comfortable working in fast-moving startup or scale-up environments where priorities evolve quickly. You enjoy ownership and want to help shape engineering standards, architecture and product direction. You are someone who raises the level of engineers around you through collaboration, mentoring and strong technical communication. You are comfortable working closely with product, design, data and external engineering teams. Any experience contributing to web/frontend engineering or cross-platform product thinking would be highly beneficial. Experience within iGaming, fintech, realtime consumer platforms or high-availability environments would be advantageous but is not essential.

This business is a brand-new online iGaming operator founded by an experienced leadership team with ambitious international growth plans. They currently operate from London and Malta, with London becoming the long-term technology and marketing hub. The company is still intentionally small and highly collaborative, with around 10–11 employees in the UK and a further team in Malta. Their vision is to build world-class internal technology capability as they scale globally across multiple regulated markets.

• Early-stage opportunity with genuine ownership and influence.
• Direct access to founders and strategic technical decision-making.
• Chance to help build a mobile platform from the ground up.
• International product scaling across multiple markets.
• Modern iOS tooling and engineering practices.
• Strong engineering culture focused on collaboration and continuous learning.
• Opportunity to move from outsourced delivery towards building an elite in-house engineering capability.
• Fast-moving startup environment without excessive bureaucracy.

Hybrid working with flexibility expected. The long-term technology hub will be based in London.

If you are an experienced iOS Engineer who wants genuine ownership, modern technology and the opportunity to help shape a high-growth international product, then please click apply and send me your profile.