Senior IOS Developer

Senior iOS Developer About the role

As an Senior iOS developer
, you will make an impact by designing and delivering secure, scalable, and high‑performance iOS applications using modern technologies such as Swift and Swift

UI. You will be a valued member of the mobile engineering team and collaborate closely with product managers, designers, and backend engineers to build reliable, accessible, and maintainable solutions for global users.

• Design and architect scalable iOS applications using Swift and Swift
  
  UI, ensuring performance, maintainability, and reliability

• Implement reactive programming patterns using Combine to manage asynchronous data flows and improve application responsiveness

• Optimize application performance by profiling memory, CPU, and rendering processes across a wide range of Apple devices

• Apply secure coding practices, including encryption, secure storage, and network protection, to safeguard user and enterprise data

• Lead testing and debugging efforts through unit testing, UI automation, and diagnostics to deliver high‑quality releases

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 3 days a week in a client or Cognizant office in Stamford, CT / Chicago, IL / Dallas, TX
. Regardless of your working arrangement, we are here to support a healthy work‑life balance through our wellbeing programs.

The working arrangements for this role are accurate as of the date of posting and may change based on business or client needs.

• 5-8 years of professional experience in iOS development, including experience in architecting complex mobile applications

• Strong proficiency in Swift and Swift
  
  UI with proven experience developing production‑grade applications

• Hands‑on experience with the Combine framework for managing asynchronous data streams and state updates

• Solid expertise in iOS testing and debugging, including unit testing frameworks, UI automation tools, and crash analysis

• Deep understanding of iOS security, including encryption, secure storage, keychain usage, and secure communication protocols

• Experience with iOS app distribution, including provisioning profiles, code signing, and deployment to enterprise and public app stores

• Knowledge of accessibility standards and ability to design inclusive, user‑friendly mobile interfaces

• Experience documenting architectural decisions and enforcing coding standards across teams

• Strong collaboration skills working in cross‑functional environments

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance.

• Paid holidays plus Paid Time Off.

• 401(k) plan and contributions.

• Long‑term/Short‑term Disability.

• Paid Parental Leave.

• Employee Stock Purchase Plan.

The annual salary for this position ranges from $100,000 to $114,000
, depending on experience and qualifications. This role is also eligible for Cognizant’s discretionary annual incentive program, subject to performance and applicable plan terms.

We’re excited to meet people who share our passion for technology and innovation and who can make an impact in a variety of ways.
Don’t hesitate to apply
, even if you meet most—but not all—of the requirements. We value transferable skills, diverse experiences, and fresh perspectives.

This position does not offer visa sponsorship. Candidates must be authorized to work without sponsorship now or in the future, including OPT, CPT, or any other work authorization requiring employer sponsorship.

Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.