Mobile Engineer (iOS / Mid-level) in London

About Freetrade

Freetrade’s mission is to become the default place to invest. Investing has been too complicated and expensive for too long, keeping millions from making the most of their savings. We’re changing that. We’re building our team and looking for people who are excited to reshape how our customers invest and grow their wealth. If you’re driven by solving complex problems and building innovative products, you’ll fit right in.

2026 is a big year for us. Last year, we announced a game changing deal to become part of the IG Group. We’ll continue to operate as an independent business while gaining access to the resources and support of an established leader in the space. This year, we’re accelerating our roadmap and taking our products to the next level. We’re building new features like mutual funds, bonds, and family investment tools. We’re also exploring how we can leverage AI to deliver an even better experience for our customers.

Why Join Our Engineering Team?

Be part of a team that’s shaping the future of investments. As an engineer, you’ll play a pivotal role in developing and maintaining a robust, scalable platform used by thousands daily. We tackle complex technical challenges, drive innovation, and build solutions that make a real impact.

The Freetrade iOS mobile application provides the functionality for customers to access investment opportunities across the financial markets in the UK, US and EU. We are looking for an iOS Mobile Engineer to join our team at Freetrade. The role requires someone with a good understanding of the iOS mobile platform, ability to problem solve, and passion to improve their skills and deliver within a highly collaborative team. This is a unique opportunity to work with knowledgeable and experienced mobile engineers across both iOS and Android platforms, that will help develop your abilities.

As part of our dedicated mobile engineering team, you will work on implementing new features as well as ensuring high levels of customer satisfaction by assisting in handling customer queries and feedback. In collaboration with design, product and QA teams you will craft new user experiences that will delight our customers. You will also help guide priorities around platform issues, technical debt, patterns, and architecture, ensuring we deliver a high-quality app and an excellent developer experience.

Our Mobile team’s tech stack:

• Our iOS app is written fully in Swift.
• Our app's UI is built using SwiftUI, with some UIKit code that we are in the process of migrating away from.
• We organise our components using the MVVM-C pattern.
• We use RxSwift for reactive data handling, with an ongoing migration toward Swift Concurrency.
• We use Factory for dependency injection.
• Screens are constructed with building blocks from our design system, built in SwiftUI.
• We use a layered modular architecture using Swift Packages to optimise scalability.
• We have recently transitioned to a modern, unified GraphQL API using Apollo.

What you’ll be doing & your impact:

• Contribute to the development of new features and maintain existing features of the Freetrade iOS app.
• Ensure high performance, quality, security and responsiveness of the application.
• Collaborate with cross-functional teams (including backend, design, product, and QA) to define, design, and ship new features.
• Ensure the robustness of the application by writing tests and participating in code reviews.
• Identify and correct bottlenecks and fix bugs.
• Help maintain code quality, organisation, automation and application releases.
• Ensure customer satisfaction by participating in a support rota to understand and address customer issues.

What you bring to the team:

• Typically around 3-5 years of experience developing production grade mobile applications.
• Strong ability to problem solve and passionate about improving your skills and knowledge.
• Good understanding of mobile architectural patterns, such as MVVM or MVP or VIPER.
• Experience in using industry standard tools for iOS development, such as Swift, SwiftUI and Xcode.
• Experience of using reactive libraries, such as Combine or RxSwift.
• Good understanding of Human Interface Guidelines.
• Working understanding of using code version control tools (such as Git).
• Appreciation of continuous integration and build tools (CircleCI).

Benefits:

Freetrade is the place to accelerate your career. Our benefits package and ways of working are designed to attract and retain the most talented people who are dedicated to making an impact at Freetrade. Here’s what’s on offer in 2026:

• Hybrid working culture: We’re operating in a hybrid model: 3-days in-office / 2-days from home.
• Flexibility for those who need it: We have a hybrid working model, but life happens. If you need flexibility let’s talk about it, whether you’re a parent or have other care responsibilities.

Values:

At Freetrade we live and breathe our values: Honesty, Focus and Grit. Expect to be asked about these in your interview!

Benefits in London:

• Competitive salary – carefully benchmarked. Base salary band for the position: £52K - £75K.
• Holidays – 25 days plus UK public holidays. Your birthday off, plus one extra day for every year at Freetrade.
• Enhanced pension – We’ll match your contributions up to 7%.
• Group Life Insurance – Protect your loved ones with coverage at 5x your salary, ensuring financial security in any circumstance.
• Private Health Insurance – Which includes access to high quality medical care, mental health support, dental and vision plans.
• Income Protection Cover – Safeguard your income with comprehensive coverage, ensuring financial stability in the event of illness or injury.
• Enhanced parental leave – Time off when it matters most.
• Learning & Development – We fund industry qualifications so you can grow as a financial services professional.
• Cycle to Work scheme – Get a high quality bike and gear through our salary sacrifice scheme, spreading the cost with tax free monthly instalments.
• Paid Sick Leave – Receive 10 days of fully paid sick leave each calendar year.

We are an Equal Opportunity employer committed to a diverse and representative team. Whatever your race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability – we want to hear from you.