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Senior Ios Developer jobs in United States
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TEKsystems · 11 hours ago

Senior Ios Developer

positionDeerfield, IL
timeContract
remoteHybrid
senioritySenior Level
money$55/hr - $60/hr
TEKsystems is a leading provider of business and technology services, and they are seeking a Senior iOS Developer to build and maintain modern iOS applications. The role involves architecting scalable applications, managing CI/CD workflows, and collaborating closely with product and backend teams to ensure high-quality app delivery.
Information Technology
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H1B Sponsor Likelynote

Responsibilities

Build and maintain modern iOS apps using Swift, SwiftUI, and UIKit
Architect modular, testable, scalable applications with MVVM and DI
Implement reactive and asynchronous flows using Combine and async/await
Integrate with REST APIs and implement offline persistence (Core Data/Realm/SQLite)
Optimize performance using Instruments (e.g., memory usage, CPU, launch time)
Manage modules and internal frameworks using SPM
Own CI/CD workflows for iOS builds (Fastlane or equivalents)
Configure and manage TestFlight distribution and release automation
Write and maintain unit and UI tests (XCTest)
Participate in code reviews, technical discussions, and architectural planning
Work closely with Product Engineering, Backend teams, and Android developers
Take independent ownership of features, releases, and roadmap items
Guide the team on best practices, modern iOS development patterns, and release processes

Qualification

SwiftMVVMIOS application developmentAPI developmentAndroid knowledgeBackend service developmentAnalytics platformsA/B testing

Required

Build and maintain modern iOS apps using Swift, SwiftUI, and UIKit
Architect modular, testable, scalable applications with MVVM and DI
Implement reactive and asynchronous flows using Combine and async/await
Integrate with REST APIs and implement offline persistence (Core Data/Realm/SQLite)
Optimize performance using Instruments (e.g., memory usage, CPU, launch time)
Manage modules and internal frameworks using SPM
Own CI/CD workflows for iOS builds (Fastlane or equivalents)
Configure and manage TestFlight distribution and release automation
Write and maintain unit and UI tests (XCTest)
Participate in code reviews, technical discussions, and architectural planning
Work closely with Product Engineering, Backend teams, and Android developers
Take independent ownership of features, releases, and roadmap items
Guide the team on best practices, modern iOS development patterns, and release processes
swift
mvvm
application development
apple ios
android
api development

Preferred

Android knowledge or experience supporting Android apps (highly preferred by the team for cross‑skill coverage)
Experience working in healthcare, HIPAA‑regulated environments, or other high‑compliance systems (not required, but helpful)
Understanding of backend service development or API design principles
Experience collaborating with backend teams on REST API improvements
Familiarity with modular architecture, feature modules, and dynamic frameworks
Experience with analytics platforms (Firebase, Amplitude, Mixpanel, Segment, etc.)
Experience managing A/B testing or in‑app experiments

Benefits

Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)

Company

TEKsystems

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Glassdoor3.9
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At TEKsystems, they understand people. Every year they deploy over 80,000 IT professionals at 6,000 client sites across North America,
dateFounded in 1994
location
Hanover, Maryland, USA
people-size10001+ employees
web-link
http://www.teksystems.com

H1B Sponsorship

TEKsystems has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (46)
2024 (52)
2023 (33)
2022 (22)
2021 (36)
2020 (53)

Funding

Current Stage
Late Stage

Leadership Team

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Ryan Skains
Vice President, TEKsystems Global Services
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