Senior iOS Engineer — Remote, Build Global Wikipedia Apps

Wikimedia Foundation; United States; Remote; USD 56,000 - 87,000; Full time

Job summary

The Wikimedia Foundation is seeking a Senior Software Engineer, iOS, to join the App Growth team on a 3‑month full‑time contract. The role focuses on enhancing the iOS experience for a global, multilingual audience and requires four hours daily within 14:00–21:00 UTC.

You will work with product, design, and native app engineers to deliver impactful features at scale. You will be responsible for system design on medium projects, writing testable, observable code, and ensuring accessibility and

Qualifications

• Bachelor's degree and 5–10+ years of professional iOS experience.
• Strong proficiency with Swift, SwiftUI, UIKit, and iOS architectural patterns.
• Experience with iOS performance optimisation to ensure smooth, high-performing apps.
• Experience working in a self‑driven, lean environment.
• Commitment to Wikimedia Foundation's mission and values.

Responsibilities

• Delivery of medium complexity initiatives from discovery through delivery, with scope management and risk identification.
• Lead system design for medium-sized projects and build accessible, scalable components for the iOS platform.
• Write testable, observable code and enable deep analysis by Product Analysts.
• Collaborate with product managers, designers, analysts, and native app engineers to balance user needs and constraints.
• Identify high-impact technical opportunities and align team priorities with outcomes.

Skills

Swift

SwiftUI

UIKit

iOS architecture patterns

Performance optimization

Self-driven

Education

Bachelor's degree in computer science or related field

Tools

Swift

SwiftUI

UIKit

Job description

The Wikimedia Foundation is seeking a Senior Software Engineer, iOS, to join the App Growth team on a 3‑month full‑time contract. The role focuses on enhancing the iOS experience for a global, multilingual audience and requires four hours daily within 14:00–21:00 UTC.

You will work with product, design, and native app engineers to deliver impactful features at scale. You will be responsible for system design on medium projects, writing testable, observable code, and ensuring accessibility and