Senior iOS Engineer- Identity Services

3761 Barclays - BX - UK; Knutsford; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Barclays is seeking a Senior iOS Engineer for Identity Services to build cutting-edge native iOS authentication features for the mobile banking app. You will work with biometric authentication, secure enclaves and Swift frameworks while collaborating with backend, security and design teams to deliver secure experiences for millions of customers.

The role requires deep iOS expertise, OAuth2/OIDC and Secure Storage knowledge, plus AI-assisted development tools, CI/CD, and strong focus on security

Qualifications

• Deep iOS development with Swift, UIKit, and SwiftUI.
• Strong knowledge of IAM concepts and OAuth2/OIDC integration.
• Experience with AI-assisted development tools for iOS.
• Experience implementing biometric authentication and secure storage on iOS.
• Proficiency in MVVM/Clean Architecture, DI, tests, and CI/CD for mobile apps.
• Expertise in mobile security practices and penetration/testing basics.

Responsibilities

• Design, develop and improve native iOS apps.
• Collaborate with product, design and backend teams for requirements and alignment.
• Participate in code reviews and promote code quality and knowledge sharing.
• Implement secure coding, unit tests and CI/CD pipelines.
• Stay current with iOS tech trends and security requirements.

Skills

Swift

iOS SDK

UIKit

SwiftUI

OAuth2

OIDC

AI-assisted development

Biometrics

Keychain

MVVM/Clean Architecture

Dependency injection

Automated testing

CI/CD

Security testing

Tools

Ping Identity SDK

Xcode

CI/CD tooling

Job description

Job Description Purpose of the role

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.

Accountabilities

Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance. Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives. Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing. Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth. Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions. Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

Vice President Expectations

To contribute or set strategy, drive requirements and make recommendations for change. Plan resources, budgets, and policies; manage and maintain policies/ processes; deliver continuous improvements and elevate breaches of policies/procedures.. If managing a team, they define jobs and responsibilities, planning for the department’s future needs and operations, counselling employees on performance and contributing to employee pay decisions/changes. They may also lead a number of specialists to influence the operations of a department, in alignment with strategic as well as tactical priorities, while balancing short and long term goals and ensuring that budgets and schedules meet corporate requirements.. If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.. OR for an individual contributor, they will be a subject matter expert within own discipline and will guide technical direction. They will lead collaborative, multi-year assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions.. Advise key stakeholders, including functional leadership teams and senior management on functional and cross functional areas of impact and alignment. Manage and mitigate risks through assessment, in support of the control and governance agenda. Demonstrate leadership and accountability for managing risk and strengthening controls in relation to the work your team does. Demonstrate comprehensive understanding of the organisation functions to contribute to achieving the goals of the business. Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategies. Create solutions based on sophisticated analytical thought comparing and selecting complex alternatives. In-depth analysis with interpretative thinking will be required to define problems and develop innovative solutions. Adopt and include the outcomes of extensive research in problem solving processes. Seek out, build and maintain trusting relationships and partnerships with internal and external stakeholders in order to accomplish key business objectives, using influencing and negotiating skills to achieve outcomes. All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave. You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen, strategic thinking and digital and technology, as well as job-specific technical skills.

Join us as a Senior iOS Engineer for Identity Services at Barclays, where you will build cutting-edge native iOS authentication and identity features that deliver seamless, secure experiences for millions of customers using our mobile banking app.

You’ll work with the latest iOS technologies including biometric authentication, secure enclaves, and modern Swift frameworks, leveraging AI-assisted development practices to accelerate innovation, while partnering with backend engineers, security specialists, and product designers to create best-in-class mobile identity solutions.

To be successful in this role you should have:

• Deep iOS development experience with deep expertise in Swift, iOS SDK, UIKit, and SwiftUI, with proven track record of delivering high-quality native iOS applications
• Solid understanding of Identity and Access Management concepts, authentication protocols (OAuth2, OIDC), and integration with IAM backend services via Android SDKs and REST APIs
• Proficiency in AI-assisted development tools to accelerate iOS development, improve code quality, and enhance debugging and testing processes
• Experience implementing authentication and identity features on iOS including biometric authentication (Face ID, Touch ID), keychain services, secure storage, and certificate pinning
• Experience with modern iOS development practices including MVVM/Clean Architecture, dependency injection, automated testing (XCTest, UI Testing), and CI/CD pipelines for mobile apps
• Expertise in secure mobile development practices including code obfuscation, runtime protection, jailbreak detection, and mobile application security testing

Some other highly desirable skills include:

• Experience integrating with Ping Identity SDK to interface with IAM platforms on iOS, including implementing custom authentication journeys
• Experience with mobile DevOps, app store deployment processes, and feature flagging/gradual rollout strategies
• Knowledge of FIDO2/WebAuthn, passkeys, and passwordless authentication on iOS platform
• Background in performance optimization, memory management, and debugging complex iOS applications
• Familiarity with financial services mobile applications and understanding of regulatory requirements and security standards for banking apps

This role will be based out of our Knutsford or London offices with flexible hybrid working arrangements.

Our Work Experience is the combination of everything that's unique about us: our culture, our core values, our company meetings, our commitment to sustainability, our recognition programs, but most importantly, it's our people. Our employees are self-disciplined, hard working, curious, trustworthy, humble, and truthful. They make choices according to what is best for the team, they live for opportunities to collaborate and make a difference, and they make us the #1 Top Workplace in the area.