iOS Engineer - Burgess Hill - Financial Services

iOS Engineer

Location: West Sussex- 3 days on site
Contract: Initial 6 months
Rate: £300-£345 per day
IR35: Inside IR35

We’re looking for an experienced iOS Engineer to join a high-profile mobile engineering team for a globally financial services organisation, helping to develop and enhance mobile applications used by customers every day. This is an opportunity to work on technology at significant scale, while being part of a smaller, collaborative engineering team.

You’ll work closely with designers, product owners, QA and other engineers to develop new features, improve existing functionality and solve challenging technical problems.

We’re looking for someone who combines strong technical ability with creativity and a genuine interest in delivering a great user experience. You’ll be encouraged to share ideas, challenge existing approaches and help shape the way the team develops its products.

The Role

As an iOS Engineer, you’ll be responsible for developing and improving high-quality mobile applications, working across the full development life cycle.

You’ll be involved in:

• Building, developing and improving iOS applications
• Designing solutions for open-ended and technically challenging problems
• Writing clean, maintainable and well-tested code
• Finding, diagnosing and fixing bugs
• Performance analysis and optimisation
• Working with modern iOS development methodologies
• Working with existing Objective-C code and supporting the gradual reduction of legacy code
• Developing unit and integration tests
• Working with Continuous Integration and modern development practices
• Collaborating closely with designers, product owners, QA and other engineers
• Integrating applications with backend services and REST APIs
• Working within a globally distributed engineering environment
• Contributing ideas and helping the team continuously improve its development practices

Technical Skills & Experience

We’re looking for strong commercial experience in iOS development, with knowledge of:

• Swift
• iOS application development
• UIKit
• MVVM
• REST APIs
• Objective-C, particularly within legacy codebases
• XCTest / XCUITest
• GitHub Actions
• CircleCI
• Tuist
• xcodebuild
• Continuous Integration patterns
• Functional coding patterns
• Performance analysis and optimisation
• Unit and integration testing

You may also encounter or have experience with:

• Danger
• RAML API documentation
• μFeatures architecture
• Open-source technologies and contributions
• Bespoke backend services

About You

You’ll be someone who:

• Has strong commercial experience building iOS applications
• Is confident working with modern iOS technologies and development practices
• Takes pride in writing clean, high-quality code
• Cares about user experience and building intuitive applications
• Enjoys solving complex problems and working through ambiguity
• Is comfortable diving into technical challenges and rapidly iterating on ideas
• Can work independently and manage your own workload effectively
• Is confident sharing ideas and contributing to technical discussions
• Works well within a collaborative, globally distributed team
• Can balance modern development approaches with working within established or legacy environments

A Bachelor's degree in Computer Science or a related subject, or equivalent commercial experience, would be beneficial.

Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.

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