Sr. iOS Developer
Concentrix1 day ago
Remote, United States or Frisco, TX, USASenior
Base Salary
$92k - $135k/yr
Responsibilities
- Design, develop, test, maintain, and support large-scale iOS features using Swift, SwiftUI, UIKit, and modern Apple frameworks.
- Deliver commerce capabilities covering product discovery, catalog, offers, promotions, cart, checkout, payments, loyalty, rewards, order status, and fulfillment.
- Own technical delivery from solution design and estimation through implementation, release readiness, production validation, and operational support.
- Shape mobile architecture using modular design, protocol-driven components, reusable frameworks, dependency management, and separation of concerns.
- Integrate enterprise services through RESTful and GraphQL APIs, authentication, caching, error handling, and offline-aware patterns.
- Optimize startup time, rendering, memory, battery, network usage, concurrency, and application responsiveness.
- Apply secure coding, Keychain storage, token handling, privacy controls, fraud-prevention integration, and payment security practices.
- Improve quality through unit, integration, snapshot, and UI automation testing, code reviews, static analysis, and quality gates.
- Strengthen observability through analytics, logging, crash reporting, tracing, performance monitoring, dashboards, and production alerts.
- Collaborate with Android and backend engineers on API contracts, domain models, edge cases, and consistent customer behavior.
- Support CI/CD, feature flags, phased rollouts, App Store readiness, production monitoring, incident response, root-cause analysis, and corrective actions.
- Mentor engineers, facilitate technical discussions, document decisions, and raise engineering standards across the commerce pod.
Requirements
- At least 7 years of professional iOS development experience with significant ownership of complex production applications.
- Advanced proficiency in Swift, SwiftUI, UIKit, Xcode, iOS SDK, structured concurrency, and modern Apple development practices.
- Experience delivering reliable, performant, operationally ready mobile capabilities for a large customer base.
- Strong knowledge of MVVM, VIPER, Clean Architecture, coordinator patterns, protocol-oriented design, and dependency injection.
- Hands-on experience integrating RESTful or GraphQL services, authentication flows, JSON data models, caching, pagination, retries, and failure handling.
- Strong understanding of memory management, application lifecycle, multithreading, networking, accessibility, localization, and responsive UI implementation.
- Experience with XCTest, XCUITest, automated regression testing, mocking, test doubles, and maintainable test design.
- Experience with Git-based development, pull-request reviews, branching strategies, CI/CD pipelines, and App Store release processes.
- Ability to troubleshoot complex production issues using logs, metrics, crash reports, traces, and customer-impact data.
- Strong communication and collaboration skills in Agile/Scrum teams, including estimation, refinement, sprint planning, demonstrations, and retrospectives.
- Preferred experience includes commerce, marketplace, payment, loyalty, rewards, subscription, retail, or telecom applications.
- Preferred experience includes applications serving millions of customers and high-volume transactional journeys.
- Preferred knowledge includes payment tokenization, PCI-DSS considerations, mobile fraud controls, secure storage, and privacy-by-design practices.
- Preferred experience includes modular iOS codebases, Swift Package Manager, reusable design systems, feature flags, and progressive delivery.
- Preferred familiarity includes Firebase, Datadog, New Relic, Splunk, event-driven architectures, analytics event schemas, experimentation, A/B testing, and real-time customer events.
- Bachelor’s degree in Computer Science, Engineering, or a related technical discipline, or equivalent practical experience.
- Previous T-Mobile, telecom, or high-transaction-volume consumer application experience is preferred.
Benefits
- Medical, dental, and vision insurance are available to eligible employees.
- Comprehensive employee assistance program.
- 401(k) retirement plan.
- Paid time off, holidays, and paid learning days.
- Full-time, work-at-home position in Texas.
- The application deadline is October 10, 2026, and the role is an existing immediate vacancy requiring a prompt start.
Tech Stack
Categories
Mobile
About Concentrix
We’re Concentrix, a Fortune 500® technology and services leader, helping the world's best brands cut through AI hype and create intelligent operations that perform in the real world. We design, build, and run integrated human and AI solutions, harnessing the insight from billions of real-world interactions to help 2000+ of the world’s most complex organizations solve their toughest business challenges. Backed by 20+ years of operational experience and battle tested AI, we’re the Intelligent Transformation Partner that helps clients across every major vertical move from AI ambition to measurable, scalable performance.