Senior Ios Engineer

Senior iOS Engineer

A Senior iOS Engineer will design, build, and maintain complex iOS applications using modern patterns and robust networking libraries while ensuring clean architecture and reliable automated testing with XCTest. The role focuses on scalable feature delivery, code quality through Git workflows, and collaboration in a hybrid work model for enterprise grade mobile solutions.

If you're like us, you've got big ideas. At Cognizant, we're exploring new ideas every day. We help industry leading companies reinvent their business models and innovate products that create new value—by connecting people with things, insights, and experiences. Cognizant digital engineering designs, engineers, and delivers digital products and experiences that drive digital-first business models. We offer the most comprehensive digital engineering expertise and client-centric methodology for sustainable innovation.

Location: Minneapolis-MN

Experience Required: 10+ years

You must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future. Cognizant will not sponsor work authorization for this role.

Responsibilities:

• Design and implement advanced iOS application features that deliver secure, intuitive, and high performing user experiences for enterprise customers
• Develop and maintain modular iOS components that can be reused across products to accelerate feature delivery and reduce maintenance overhead
• Optimize application performance by profiling critical paths and tuning networking, rendering, and data storage behaviors to meet strict responsiveness goals
• Integrate and manage networking libraries to handle complex API interactions, error handling, and offline scenarios while maintaining robust data integrity
• Collaborate with product managers and designers to refine requirements into clear technical tasks that support business outcomes and customer satisfaction
• Review pull requests using Git workflows to ensure code quality, consistency, and adherence to engineering standards across the iOS codebase
• Create and maintain comprehensive XCTest suites that validate core flows, critical edge cases, and regression scenarios for every major feature
• Debug complex production issues by analyzing logs, metrics, and crash reports to identify root causes and implement sustainable long term fixes
• Document technical designs, architectural decisions, and key implementation details to support knowledge sharing and onboarding across the hybrid team
• Coordinate closely with backend and DevOps teams to align on API contracts, performance targets, and deployment strategies that support stable releases
• Mentor junior and mid level engineers by providing constructive code reviews and practical guidance on iOS best practices and testing discipline
• Participate in sprint planning, estimation, and retrospectives to improve delivery predictability and continuously refine the engineering workflow
• Drive continuous improvement by proposing enhancements to tools, libraries, and processes that make iOS development more efficient and reliable

Qualifications:

• Possess extensive experience in building complex native iOS applications using Swift or Objective C with strong understanding of UIKit and related frameworks
• Demonstrate hands on expertise with networking libraries for RESTful communication including authentication strategies and secure data handling practices
• Apply solid knowledge of XCTest to design unit tests, UI tests, and integration tests that increase coverage and protect against regressions in critical flows
• Utilize Git effectively within collaborative workflows including branching strategies, code reviews, and conflict resolution for large scale projects
• Bring proven experience in hybrid work environments using modern collaboration tools to maintain alignment with distributed cross functional teams
• Exhibit strong problem-solving skills in diagnosing performance bottlenecks, memory issues, and networking failures within complex iOS ecosystems
• Show proficiency in designing maintainable architecture such as MVVM or clean architecture that support scalability and ease of future enhancements
• Display familiarity with continuous integration practices that incorporate automated test execution and quality checks for every code change
• Communicate clearly with stakeholders of varied technical backgrounds to translate requirements into feasible and reliable mobile solutions

Certifications Required: Preferred certifications include Apple App Development with Swift certification or equivalent iOS development credential and any Git or version control related certification.

Why Choose Cognizant? It takes a lot to succeed in today's fast-paced market, and Cognizant Technology Solutions has become a leader in the industry. We love big ideas and even bigger dreams! We stand out because we put human experiences at the core. Our associates enjoy robust benefits and training opportunities from our industry-recognized, award-winning Academy team. You will have access to hundreds of technical trainings to keep your skillsets fresh and have opportunities to acquire certifications on the newest technologies.

Everything we do at Cognizant we do with passion—for our clients (fortune 100 companies), our communities, and our organization. It's the defining attribute that we look for in our people. If you love ambiguity, excited by change, and excel through autonomy, we'd love to hear from you!

About Cognizant Application Delivery Well-designed, software transcends digital technology, going beyond the fulfillment of basic requirements to focus instead on human needs. Within Cognizant Digital Engineering, we help clients develop software products that transform human insights into tangible, production-ready digital solutions. We also work with our clients to scale their native cloud applications. Using insights from the lived experiences of our consumers, we seamlessly replace traditional service strategies with engaging, precise, and direct digital applications. Designing phenomenal software is vital to success in the digital economy—and we understand that a human-centric approach is key to this design.