iOS Developer

Korn Ferry; City of Westminster; On-site; GBP 65,000 - 90,000; Full time

Job summary

Korn Ferry is seeking an experienced iOS developer to design, build and maintain native iOS applications using Swift for delivery in a London-based environment.

You will collaborate with product, design, QA and engineering teams to deliver new features, optimise performance and contribute to CI/CD pipelines as part of ongoing quality improvements.

Qualifications

• Proven experience developing native iOS applications.
• Strong knowledge of Swift and exposure to Objective-C.
• Experience with UIKit and MVVM architecture.
• Experience with REST API integrations.
• Familiarity with CI/CD tooling and automated tests.
• Excellent debugging, problem-solving and performance optimization.
• Strong communication and stakeholder engagement in distributed agile teams.

Responsibilities

• Design, develop and maintain native iOS apps with a focus on performance and UX.
• Collaborate with product, design, QA and engineering to deliver features.
• Debug, profile and optimise apps for reliability and responsiveness.
• Contribute to automated unit/integration tests and CI/CD pipelines.
• Refactor and modernise legacy code where required.

Skills

Swift

Objective-C

UIKit

MVVM

REST APIs

CI/CD pipelines

Automated testing

Distributed Agile teams

Communication

Job description

• 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. 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.