Job DescriptionPublicis Sapient role overview- At Publicis Sapient, we help organizations unlock value through digital business transformation-building products and platforms that matter to our clients and their customers.
- As a Senior iOS Developer, you will lead the design and development of scalable, high-performance mobile applications using modern iOS frameworks and architectural principles.
- You will collaborate across product, design, and engineering teams to deliver seamless, accessible, and data-driven user experiences while shaping engineering practices and mentoring team members.
- This role combines deep technical expertise with ownership, enabling you to influence mobile strategy, architecture, and delivery in a fast-paced, client-focused environment.
ResponsibilitiesYour Impact- Design, build, and maintain a robust, scalable multi-module iOS codebase using Swift and SwiftUI with clear modular boundaries and separation of concerns
- Collaborate with Product, UX, Design, and backend teams to translate requirements into polished user experiences and scalable design systems
- Build and evolve a reusable component library in SwiftUI with a scalable design token system and custom theming capabilities
- Apply architectural patterns (MVVM, Clean Architecture, etc.) to ensure a principled, testable, and maintainable codebase
- Develop local orchestration engines using BGTaskScheduler, Swift Concurrency (async/await, actors), and Combine for managing background and long-running tasks
- Design and maintain battery-efficient background location tracking solutions using Core Location (CLLocationManager, geofencing, significant-change monitoring)
- Implement feature flagging mechanisms (Firebase Remote Config, LaunchDarkly, etc.) to support experimentation, controlled rollouts, and rollback strategies
- Integrate and maintain analytics pipelines (Firebase Analytics, Mixpanel, etc.) and enforce event taxonomy and schema governance in collaboration with Product and Data teams
- Ensure accessibility standards (WCAG 2.1 AA, VoiceOver, Dynamic Type, touch target sizing) are embedded across the UI and design system
- Shape CI/CD pipelines (Xcode Cloud, GitHub Actions, Fastlane) with automated quality gates and performance regression checks
- Implement APM and performance monitoring tooling (Firebase Performance, New Relic, MetricKit) for application health and optimization
- Leverage AI-assisted development tools (e.g., GitHub Copilot, Claude) and agentic workflows to accelerate development and reduce repetitive tasks
- Mentor and support junior and mid-level engineers, contributing to team growth, engineering quality, and knowledge sharing
QualificationsYour Skills & Experience- Strong experience building iOS applications using Swift
- Hands-on expertise with SwiftUI and modern UI architecture
- Experience designing scalable mobile architectures (e.g., MVVM, Clean Architecture)
- Proven experience building modular codebases and reusable UI component systems
- Experience working with concurrency models (async/await, Combine, background processing)
- Solid understanding of mobile performance optimization, including memory, CPU, and battery usage
- Experience integrating analytics frameworks and implementing event tracking systems
- Familiarity with feature flagging, experimentation frameworks, and release management practices
- Experience with CI/CD pipelines and mobile build/release tooling
- Strong debugging, problem-solving, and system design skills
- Experience collaborating in cross-functional Agile teams
Set Yourself Apart- Experience building and scaling enterprise-grade mobile platforms
- Deep understanding of accessibility standards and inclusive design practices
- Experience with design systems, token architecture, and UI theming strategies
- Exposure to observability, monitoring, and performance tuning at scale
- Experience mentoring engineers and influencing engineering best practices
- Demonstrated alignment with Publicis Sapient core values such as Learning Mindset, Inclusive Collaboration, and Partnering for Client Impact
- Experience applying AI-assisted workflows in production development environments
- Contributions to open-source iOS projects or technical communities
Additional Information- An inclusive workplace that promotes diversity and collaboration.
- Access to ongoing learning and development opportunities.
- Competitive compensation and benefits package.
- Flexibility to support work-life balance.
- Comprehensive health benefits for you and your family.
- Generous paid leave and holidays.
- Wellness program and employee assistance.
Pay Range: $96,000 - $161,000 annual salary
