Senior iOS Technical Lead - Onsite in Seattle (SwiftUI)

CoSourcing Partners Inc.; Seattle (WA); On-site; USD 140,000 - 190,000; Full time

Job summary

CoSourcing Partners Inc. is seeking an experienced iOS Technical Lead to drive the architecture, development, and delivery of our native iOS applications in Seattle.

You will own technical decisions, review code, and mentor a growing team of iOS engineers while collaborating with Product, UX/UI, QA, and Backend groups to ensure high quality, scalable mobile experiences. The role emphasizes hands-on coding, architectural leadership, and involvement across the full software delivery lifecycle.

Qualifications

• 8+ years of iOS development experience.
• 2+ years of technical leadership.
• Proficiency with Swift, SwiftUI, UIKit, and Combine.
• Experience with MVVM and Clean Architecture.
• Experience with REST APIs and async programming.

Responsibilities

• Lead design, development, and maintenance of native iOS features.
• Guide engineers, perform code reviews, and mentoring.
• Drive Agile planning and CI/CD improvements.
• Collaborate with product, UX/UI, QA, and backend teams.
• Ensure secure, scalable, high-performing mobile solutions.

Skills

Technical leadership

Hands-on coding

Agile planning

Mentoring

Cross-functional collaboration

Tools

Swift

SwiftUI

UIKit

Combine

MVVM

Clean Architecture

REST APIs

Async/Await

Xcode

Git

CI/CD

Azure DevOps

GitHub Actions

Core Data

XCTest

Job description

CoSourcing Partners Inc. is seeking an experienced iOS Technical Lead to drive the architecture, development, and delivery of our native iOS applications in Seattle.

You will own technical decisions, review code, and mentor a growing team of iOS engineers while collaborating with Product, UX/UI, QA, and Backend groups to ensure high quality, scalable mobile experiences. The role emphasizes hands-on coding, architectural leadership, and involvement across the full software delivery lifecycle.