Senior iOS Developer
Persistent Systems LLC
We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what’s next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.
Our disruptor’s mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We have delivered 21 sequential quarters of growth with $389.7M in Q1 FY26 revenue, up 3.9% Q‑o‑Q and 18.8% Y‑o‑Y growth. Our 25,000+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been named the fastest-growing Indian IT services brand in the “Brand Finance India 100” 2025 report. We were also cited as a Leader in the ISG Provider Lens™ 2025 for Digital Engineering Services 2025 and the Everest Group Talent Readiness for Next‑generation Application Services PEAK Matrix® Assessment 2025
About Position
We are looking for a seasoned Senior iOS Developer to join our engineering team. You’ll be responsible for architecting and building high‑performance, scalable mobile applications that provide a world‑class user experience.
As a senior member of the team, you won’t just be writing code; you’ll be shaping our technical roadmap, and ensuring our codebase remains clean, tested, and robust.
- Location: Remote
- Experience: 3+ YOE
- Skills: SwiftUI, URLSession, MVVM (Model‑View‑ViewModel), XCTest or SwiftTest, Git, CI/CD pipelines (e.g., GitLab, CircleCI, Bitrise), VoiceOver, Unit Tests .
What You'll Do
- Architect & Build: Build reactive, fluid user interfaces using SwiftUI and modern frameworks.
- Design Patterns: Implement and maintain a clean, modular MVVM architecture to ensure separation of concerns and scalability.
- Networking & Data: Advanced experience with URLSession, including handling authentication, background sessions, and complex JSON parsing with Codable
- Quality Assurance: Write comprehensive Unit Tests (XCTest/SwiftTest) and UI Tests to maintain a high standard of app stability.
- Accessibility Mastery: Deep knowledge of VoiceOver , Dynamic Type, Reduced Motion, and accessibilityElement modifiers in SwiftUI to meet WCAG compliance .
- Code Stewardship: Conduct rigorous code reviews and promote best practices in Swift development.
- Collaboration: Work closely with Product Designers and Backend Engineers to define API contracts and pixel‑perfect UI.
- DevOps Ownership: Build and maintain GitLab CI/CD pipelines to automate builds, testing, and distribution via TestFlight.
- Inclusive Design: Implement Accessibility (A11y) best practices, ensuring the app meets WCAG standards for all users.
Expertise You'll Bring
- 3+ years of professional iOS development experience.
- Deep SwiftUI Expertise: Proven track record of building complex layouts and using SwiftUI.
- Networking Expertise: Proficiency with URLSession for RESTful API consumption and JSON serialization using Codable
- Architecture Proficiency: Expert‑level understanding of MVVM (Model‑View‑ViewModel) and how to manage state effectively.
- Testing Rigor: Significant experience with XCTest or SwiftTest , mocking dependencies, and automated UI testing.
- Accessibility Standards: Strong understanding of TalkBack, Content Descriptions, Touch Targets, and using the Accessibility Scanner.
- Technical Breadth: Strong grasp of Combine or Async/Await for asynchronous programming.
- Tooling: Proficiency with Git, CI/CD pipelines (e.g., GitLab, CircleCI, Bitrise), and App Store Connect.
- Technical Debugging: Proficiency in network debugging using Proxyman or Charles Proxy to analyze requests/responses
Nice to have
- Experience conducting accessibility audits or using the Accessibility Inspector
- Knowledge of Modularization (Swift Package Manager)
- Experience with Android Jetpack Compose development.
- Experience with Ruby on Rails or similar web development frameworks.
- Experience with SQL
- 13% Saving fund, capped to the law limit.
- 12% Grocery coupons, capped to the law limit.
- 12 vacation days first year + 6 floating days – number of vacation days increase according to seniority.
- Annual performance evaluation with rewards and recognitions.
- Up to USD 200 pre‑approved annually for certifications relevant to the employee’s role.
- Free courses available at internal platforms.
- Major medical insurance (Spouse and children Included)
- Minor medical insurance (Spouse and children Included)
- Dental Insurance (Spouse and children Included)
- Visual Insurance (Spouse and children Included)
- Life insurance.
- Preferential price on car insurance (car fleet)
Values‑Driven, People‑Centric & Inclusive Work Environment
Persistent Ltd. is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.
We offer hybrid work options and flexible working hours to accommodate various needs and preferences.
Our office is equipped with accessible facilities, including adjustable workstations, ergonomic chairs, and assistive technologies to support employees with physical disabilities.
If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment. We are committed to creating an inclusive environment where all employees can thrive.
Let’s unleash your full potential at Persistent
“Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.”
#J-18808-Ljbffr$97.1k - $161.8k
...onsite at our Seneca One Buffalo, NY location, with the flexibility to work from home one day per weekOverview: We are seeking a Senior iOS Developer with deep expertise in UIKit, SwiftUI, Objective-C, and Swift to join our mobile engineering team focused on delivering...SeniorFull timeWork experience placementWork from home- ...innovative solutions are encouraged. Position Overview:The Senior Application Developer is a senior individual contributor responsible for the architecture... ...Developer will typically specialize in either Android or iOS development and is expected to demonstrate advanced...SeniorInternshipWork at officeLocal area
- ...We are seeking an experienced iOS Technical Lead with strong hands-on expertise in Swift, Apple Pay, Wallet integrations, location-... ...validation, error handling, and transaction reconciliation. Develop mapping features using MapKit, Google Maps SDK, and Location Services...Senior
- ...IOS Senior Developer Location: Washington DC / Milford, OH Duration: Fulltime Job Description: 8+ years of iOS experience. Strong in Swift, PassKit, Apple Pay, MapKit, CoreLocation, NearbyInteraction, CoreNFC. Experience in secure coding, API integrations...SeniorFull time
- ...Senior iOS DeveloperLocation: Merrimack, NH, 100% remote for right candidate, remote till COVIDDuration: 12+ monthsThe Expertise You Have6+ years of professional experience developing publicly available iOS apps using Swift 5 and/or Objective-CVerifiable experience as...SeniorRemote work
- ...Senior DeveloperWe are looking for a Senior Developer, with solid and recent hands-on experience on the Swift stack for IOS development, as well as design experience developing IOS app assets.6+ years of experience including end-to-end iOS UI software solutions from scratch...Senior
- ...Qualifications: • 5+ years of experience in iOS development with a strong portfolio of released applications. • Expertise in Swift and Objective-C. • Experience with XCode and Storyboard • Deep understanding of iOS frameworks (e.g., UIKit, Core Data, Core Bluetooth...Senior
- ...Sr. iOS DeveloperDeveloperBoston, MAAsset ManagementJO-1712-533This opening is for an established asset management firm in Boston... .... The mobile team is in search for a solid hands-on senior developer with strong experience building iOS mobile applications. The developer...Senior
- ...protocol-oriented programming, and modern language features. Extensive hands-on experience building and maintaining production-grade iOS applications for iPhone and iPad; macOS experience is a strong plus. Strong expertise in SwiftUI for modern UI development, with...SeniorPermanent employmentContract workLocal area
- ...iQuasar, LLC is looking to fill the Senior iOS Developer position. At iQuasar LLC, we strive to provide the next generation of cutting-edge technologies. Our growth means exciting career opportunities for talented professionals in engineering, software development, and...SeniorRemote work
- ...: Client is looking for a strong and enthusiastic iOS Mobile Developer to join client's dynamic Application Engineering team to develop... ...'s applications on iPhone and iPad OS platforms. As a Senior mobile engineer, candidates will be responsible for...SeniorRemote work
- DescriptionSAIC is currently seeking a motivated, career and customer oriented Senior Mobile iOS Developer to join our team to begin an exciting and challenging career. The right candidate will bring an interest in applying his or her talents to national and homeland security...Senior2 days per week1 day per week
- ...Senior iOS DeveloperThe Office of the Chief Technology Officer (OCTO) will be implementing the Mobile Driver License (mDL) for the District... ...OCTO-DMV team is looking to hire highly skilled senior iOS developer to rapidly connect DMV Enterprise Application with modern...SeniorHourly payContract workWork at office
- ...Senior iOS Developer We are seeking a talented individual like you to join our team as a senior Mobile developer and play a key role in shaping the future of the platform that we are building for the clients. This candidate will serve as a technical expert of a large...SeniorPermanent employment
- ...expand a critical internal universal app across the client's ecosystem including Vision Pro and Apple Watch applications. As a Senior iOS Developer , you'll develop sophisticated motion detection algorithms, implement data telemetry features, and create production-ready...SeniorWork at office
$96k - $136k
...mobile development experience. ~5+ years of iOS app development experience using Swift,... ...to shape future enhancement roadmaps. Develop mobile application code in coordination... ...More: We are offering a long-term Senior iOS Developer opportunity in a full onsite...SeniorFull time- ...Job Description Job Description Job Title: Senior iOS Developer Location: West Warwick, RI About the job We are looking for a Senior iOS Developer to work effectively in an agile team. You will be responsible for the Smartapp.com iOS mobile app. You will...Senior
- As a member of our iOS team, you will be working on our acclaimed IOS app. This app has been featured on Apple’s finance category... ...other specialists - Challenge yourself to keep growing as a senior developer. - Contribute to the vision and long-term strategy of the company...Senior
- ...DescriptioniOS Sr DeveloperLocation :Portland,MEPosition : Full TimeSr iOS Developer with experience more than 4-5 years. - Experience building... ...according to EEO guidelines.SummaryFunction: Information TechnologyExperience level: Mid-Senior LevelIndustry: Computer SoftwareSeniorFull time
- ...Reference21-07911Remote100% Remote Participate in a founding team of iOS engineers on an application to be used and enjoyed by thousands... ...functional test coverageCollaborate with backend engineers on developing to define efficient and scalable data contractsCollaborate with...SeniorRemote workWorldwide
$180k - $210k
...company in the health and wellness space is hiring a full-time Senior iOS Software Engineer. This remote opportunity offers the chance... ...applications Strong expertise with Swift Professional experience developing with SwiftUI Experience using Combine or reactive programming...SeniorFull timeRemote work$159k - $230k
...prototypes across a portfolio of products.Identify emerging needs, develop interaction design best practices, and contribute to pattern... ...study, or equivalent practical experience.6 years of experience in iOS development, technical UX design, and prototyping.Preferred...Senior$250k
...ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.About the RolePolymarket is looking for a Senior iOS Engineer to help build our iOS product as we invest seriously in mobile. This is a high-ownership role for someone who...Senior$150k - $210k
...personalized insights that enhance fitness, health, and recovery.As a Senior iOS Engineer on the Healthcare team, you will build the... ...bring WHOOP’s clinical and behavior-change programs to life, developing features that drive measurable habit improvement and reinforce...SeniorFull timeWork at officeRelocation$168.1k - $227.4k
...process.About the RoleThe Mobile Core team develops frameworks and tools that empower... ...leverages React in WebViews alongside native iOS capabilities. You'll work on high-impact... ...the organization. You will report to the Senior Engineering Manager for Mobile Core iOS and...SeniorFlexible hours- ...they need to do their best work — both in and out of the office. We are looking for a Senior iOS Engineer to join our Connectivity team to collaboratively architect, design and develop lower-level functionality for the Oura iOS app. This team works closely together with...SeniorWork at officeLocal areaRemote workFlexible hours
$177.7k - $240.4k
Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that... ...advertising to ML-powered personalization and beyond. As a Senior iOS Engineer on Ads, you'll work on a product engineering team responsible...SeniorWork experience placement$210k - $240k
...backend leads so that front end execution stays fast and clean even as product direction comes from elsewhereWhat You Bring To Zūm:Senior+ or Staff-level front end engineering experience, with a track record of technical leadership, not just individual contributionStrong...SeniorHourly payFull timeLocal areaImmediate startRemote work$1,000 per month
...technology and customer-centric solutions.We are looking for a Senior iOS Engineer to help architect our Mobile Apps for the next 2-3... ...Genie product suite and maintain our competitive edgeMentor and develop other engineers on the teamRequirements5+ years of professional...SeniorTemporary workWork at officeImmediate startRemote workFlexible hours$139.3k - $203.6k
...Cisco, makes security simple through cloud-delivered multi-factor authentication. The Auth Experience Mobile team owns Duo Mobile for iOS and supporting services, serving more than four million people and processing well over 100 million pushes monthly. Cross-platform...SeniorFull timeTemporary workLocal areaFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior iOS Developer. Be the first to apply!
- lead ios developer United States
- ios developer contract United States
- work from home ios developer United States
- lead ios engineer United States
- senior ios developer United States
- ios developer United States
- remote ios developer United States
- senior ios engineer United States
- senior technical service engineer United States
- senior functional safety engineer United States


