Senior iOS Engineer — Lead Features & Architecture

Freetrade; Greater London; Hybrid; GBP 85,000 - 125,000; Full time

Job summary

Freetrade is hiring a senior iOS engineer to lead the design and delivery of new features for the iOS app. You will work with backend, design, product, and QA to ship high-quality solutions and uphold performance, quality, and security.

You’ll own features end-to-end and mentor junior engineers while helping improve engineering standards. The role supports a hybrid model with London and Budapest offices.

Qualifications

• Typically 6+ years of experience building production-grade mobile applications.
• Strong problem-solving skills and ability to lead technical decisions.
• Deep understanding of iOS architecture and common patterns.
• Strong experience with Swift, DI frameworks, and SwiftUI.
• Good understanding of GraphQL and integrating with backend services.
• Experience mentoring and growing more junior engineers.

Responsibilities

• Lead the design and delivery of new features for the iOS app, ensuring high performance, quality, security and robustness.
• Own features end to end, collaborating with backend, design, product and QE teams to deliver high-quality solutions.
• Set and maintain a high bar for code quality through hands-on development, reviews and testing.
• Resolve complex issues, address bottlenecks and reduce technical debt.
• Drive improvements in engineering standards and practices.
• Mentor and support junior engineers on design, implementation and best practices.
• Participate in a support rota to understand and resolve customer issues.

Skills

iOS architecture

Swift

SwiftUI

Combine/RxSwift

GraphQL

CI/CD

Git

Mentoring

Problem solving

Tools

CircleCI

Job description

Freetrade is hiring a senior iOS engineer to lead the design and delivery of new features for the iOS app. You will work with backend, design, product, and QA to ship high-quality solutions and uphold performance, quality, and security.

You’ll own features end-to-end and mentor junior engineers while helping improve engineering standards. The role supports a hybrid model with London and Budapest offices.