Ios Developer

Korn Ferry; Greater London; Hybrid; GBP 44,000 - 74,000; Full time

Job summary

Korn Ferry is seeking an experienced iOS Engineer for its London hybrid team. You will design, develop and maintain native iOS apps used by millions, collaborating with product, design, QA and engineering to deliver high-quality features in a modern agile environment.

The role focuses on Swift-based native development with exposure to Objective-C, UIKit, MVVM, and REST APIs, plus CI/CD and automated testing duties in a distributed team setting.

Qualifications

• Experience in native iOS development using Swift and Objective-C.
• Strong knowledge of UIKit and MVVM architecture.
• Experience integrating REST APIs and building testable, scalable mobile apps.
• Familiarity with CI/CD tooling and automated testing frameworks.

Responsibilities

• Design, develop and enhance native iOS applications using Swift.
• Build scalable, maintainable solutions focused on performance and UX.
• Collaborate with product, design, QA and engineering teams to deliver features.
• Debug, profile and optimise applications for reliability and responsiveness.
• Develop and maintain automated unit and integration tests.
• Contribute to CI/CD pipelines and engineering best practices.
• Refactor and modernise legacy code where required.
• Produce technical documentation and support continuous improvement initiatives.

Skills

Swift programming

Objective-C

UIKit

MVVM

REST APIs

CI/CD tooling

Automated testing

Debugging

Agile teams

Communication

Tools

Xcode

Job description

Contract: Initial 12 Month Contract
Location: London (Hybrid, 3 Days per Week in Office)
Day Rate: Up to £400 per day (Inside IR35)

Our client is seeking an experienced iOS Engineer to join a high-performing mobile engineering team responsible for applications used by millions of customers worldwide. This role offers the opportunity to work on large-scale consumer-facing products, delivering high-quality mobile experiences while collaborating within a modern agile environment.

Key Responsibilities

• Design, develop and enhance native iOS applications using Swift.
• Build scalable, maintainable solutions focused on performance and user experience.
• Work closely with product, design, QA and engineering teams to deliver new features.
• Debug, profile and optimise applications to ensure reliability and responsiveness.
• Develop and maintain automated unit and integration tests.
• Contribute to CI/CD pipelines and engineering best practices.
• Refactor and modernise Legacy code where required.
• Produce technical documentation and support continuous improvement initiatives.

Required Skills & Experience

• Strong commercial experience developing native iOS applications.
• Excellent knowledge of Swift and exposure to Objective-C.
• Experience with UIKit, MVVM architecture and REST API integrations.
• Familiarity with build and CI/CD tooling.
• Experience with automated testing frameworks.
• Strong debugging, problem-solving and performance optimisation skills.
• Ability to work effectively within distributed agile teams.
• Excellent communication and stakeholder engagement skills.