Senior Technical Specialist - IOS, Android, Java

HCL Technologies Limited; Adur; On-site; GBP 90,000 - 120,000; Full time

Job summary

HCL Technologies Limited in the United Kingdom is seeking a Senior Technical Specialist for iOS, Android, and Java, focusing on Swift, iOS development, MVVM, and SDK platforms. The role emphasizes architecture, testing, and CI/CD integration in a fast-paced tech environment.

You will mentor engineers, collaborate across platform teams, ensure production stability, and contribute to scalable mobile solutions across products. This on-site UK role requires strong leadership and hands-on expertise.

Qualifications

• Swift programming expertise with protocol-oriented design and modern Swift features.
• Strong iOS development experience with production-grade apps.
• Experience with source control workflows, PRs, and code reviews.
• Experience designing modular/framework-based architectures.
• Deep understanding of MVVM, state management and dependency injection.
• Experience designing and maintaining reusable SDKs/frameworks.

Responsibilities

• Design and implement modular architecture for scalable iOS platforms.
• Lead cross-team collaboration to promote reusable components.
• Mentor engineers and drive engineering standards.
• Develop and maintain SDKs used by multiple teams.
• Ensure performance and reliability through testing and optimization.

Skills

Swift Programming

iOS Development

Xcode & Git

Unit & UI Testing

Modular Architecture

MVVM Architecture

SDK Development

Swift Concurrency

Performance Optimization

Engineering Best Practices

CI/CD Tools

Technical Leadership

Tools

Xcode

Git

GitHub

Job description

Senior Technical Specialist - IOS, Android, Java

United Kingdom - Adur District, England

Job Summary

• Skill or Category Mandatory / Non-Mandatory Evaluation Focus for 8+ Years Experience
• Swift Programming Mandatory Expert-level Swift knowledge including Protocol-Oriented Programming, Generics, ARC, Property Wrappers, Error Handling, and modern Swift features.
• iOS Development Mandatory Proven experience building and maintaining large-scale, production-grade iOS applications with strong understanding of the iOS ecosystem.
• Xcode, Git & GitHub Mandatory Strong hands-on experience with source control, branching strategies, pull requests, code reviews, and development workflows.
• Unit & UI Testing (XCTest, XCUITest) Mandatory Ability to design comprehensive automated test suites, improve code coverage, and ensure application quality.
• Modular Architecture Mandatory Experience designing and implementing framework-based modular architectures for scalability, maintainability, and reuse.
• MVVM Architecture Mandatory Deep understanding of MVVM implementation, state management, dependency injection, and separation of concerns.
• SDK Development & Integration Mandatory Experience designing, developing, documenting, versioning, and maintaining reusable SDKs/frameworks consumed by multiple teams.
• Swift Concurrency Mandatory Strong expertise in Async/Await, Actors, GCD, Operations, thread safety, race condition prevention, and performance optimization.
• Application Performance & Scalability Mandatory Experience identifying bottlenecks, optimizing app startup times, memory utilization, and overall application performance.
• Engineering Best Practices Mandatory Demonstrated adoption of TDD, Pair Programming, Code Reviews, Refactoring, Clean Code, and CI principles.
• Continuous Integration & Automated Testing Mandatory Experience implementing automated build, test, and quality validation processes within development pipelines.
• Cross-Team Collaboration Mandatory Ability to work effectively across platform teams, drive shared solutions, promote reusable components, and influence engineering decisions.
• Technical Leadership & Mentoring Mandatory Experience mentoring engineers, reviewing architecture decisions, driving engineering standards, and leading technical discussions.
• Production Support & Release Management Mandatory Experience supporting live applications, managing releases, resolving production issues, and ensuring platform stability.
• Mobile Security Non-Mandatory Knowledge of Keychain, secure storage, authentication mechanisms, encryption, and secure handling of sensitive data.
• CI/CD Tools (GitHub Actions, Fastlane) Non-Mandatory Experience creating and maintaining mobile CI/CD pipelines, automating build, test, signing, and deployment processes.
• App Store Deployment Non-Mandatory Experience managing App Store releases, provisioning profiles, certificates, and deployment automation.
• Inner Sourcing & Reusability Non-Mandatory Experience promoting component reuse, reducing technical debt, and enabling cross-team engineering efficiency.

Key Responsibilities

• Skill or Category Mandatory / Non-Mandatory Evaluation Focus for 8+ Years Experience
• Swift Programming Mandatory Expert-level Swift knowledge including Protocol-Oriented Programming, Generics, ARC, Property Wrappers, Error Handling, and modern Swift features.
• iOS Development Mandatory Proven experience building and maintaining large-scale, production-grade iOS applications with strong understanding of the iOS ecosystem.
• Xcode, Git & GitHub Mandatory Strong hands-on experience with source control, branching strategies, pull requests, code reviews, and development workflows.
• Unit & UI Testing (XCTest, XCUITest) Mandatory Ability to design comprehensive automated test suites, improve code coverage, and ensure application quality.
• Modular Architecture Mandatory Experience designing and implementing framework-based modular architectures for scalability, maintainability, and reuse.
• MVVM Architecture Mandatory Deep understanding of MVVM implementation, state management, dependency injection, and separation of concerns.
• SDK Development & Integration Mandatory Experience designing, developing, documenting, versioning, and maintaining reusable SDKs/frameworks consumed by multiple teams.
• Swift Concurrency Mandatory Strong expertise in Async/Await, Actors, GCD, Operations, thread safety, race condition prevention, and performance optimization.
• Application Performance & Scalability Mandatory Experience identifying bottlenecks, optimizing app startup times, memory utilization, and overall application performance.
• Engineering Best Practices Mandatory Demonstrated adoption of TDD, Pair Programming, Code Reviews, Refactoring, Clean Code, and CI principles.
• Continuous Integration & Automated Testing Mandatory Experience implementing automated build, test, and quality validation processes within development pipelines.
• Cross-Team Collaboration Mandatory Ability to work effectively across platform teams, drive shared solutions, promote reusable components, and influence engineering decisions.
• Technical Leadership & Mentoring Mandatory Experience mentoring engineers, reviewing architecture decisions, driving engineering standards, and leading technical discussions.
• Production Support & Release Management Mandatory Experience supporting live applications, managing releases, resolving production issues, and ensuring platform stability.
• Mobile Security Non-Mandatory Knowledge of Keychain, secure storage, authentication mechanisms, encryption, and secure handling of sensitive data.
• CI/CD Tools (GitHub Actions, Fastlane) Non-Mandatory Experience creating and maintaining mobile CI/CD pipelines, automating build, test, signing, and deployment processes.
• App Store Deployment Non-Mandatory Experience managing App Store releases, provisioning profiles, certificates, and deployment automation.
• Inner Sourcing & Reusability Non-Mandatory Experience promoting component reuse, reducing technical debt, and enabling cross-team engineering efficiency.

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026totaled $14.8billion.