Saatchi & Saatchi

Sr. iOS Developer (onsite, NYC)

Saatchi & Saatchi • $96K — $161K *
New York, NY 10025In-Person
Consumer Technology
Less than 5 years of experience
Today
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Job Overview by Ladders

Qualifications

  • 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
  • Solid understanding of mobile performance optimization, including memory, CPU, and battery usage
  • Familiarity with CI/CD pipelines and mobile build/release tooling

Responsibilities

  • Design and maintain a scalable multi-module iOS codebase using Swift and SwiftUI
  • Collaborate with multi-disciplinary teams to translate requirements into polished user experiences
  • Build and evolve a reusable component library with custom theming capabilities
  • Apply architectural patterns for a principled and maintainable codebase
  • Implement analytics tracking and enforce schema governance for data integrity
  • Ensure accessibility standards are integrated throughout the UI
  • Mentor junior engineers to enhance knowledge sharing and team growth

Benefits

  • An inclusive workplace that promotes diversity and collaboration
  • Access to ongoing learning and development opportunities
  • Flexibility to support work-life balance
  • Comprehensive health benefits for you and your family
  • Generous paid leave and holidays
  • Wellness program and employee assistance
Full Job Description
Overview

Publicis 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.


Responsibilities

Your 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


Qualifications

Your 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

About Saatchi & Saatchi

Saatchi & Saatchi is a global advertising agency headquartered in New York City. The company was founded in London in 1970 by brothers Maurice and Charles Saatchi and is now part of the Publicis Groupe, a French multinational advertising and public relations company. Saatchi & Saatchi has over 6,000 employees in 114 countries and provides a range of advertising and marketing services to clients in various industries, including automotive, consumer goods, financial services, and telecommunications. The company is known for its creative and innovative advertising campaigns, including the iconic 'Nothing is Impossible' campaign for Toyota. Saatchi & Saatchi has won numerous awards for its work, including Cannes Lions, Clios, and Effies.
Learn more about Saatchi & Saatchi
Size
6,000 employees
Industry
Media
* Ladders Estimates

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