Senior iOS Engineer — Remote, Impactful App Growth

Wikimedia Foundation; Lake Michigan Beach (MI); 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. This fully remote role requires availability across 14:00–21:00 UTC and aims to enhance the iOS experience for a global audience.

You will deliver medium complexity initiatives, lead system design for mid-size projects, and collaborate with product, design, and analytics to drive measurable outcomes.

Qualifications

• 5+ years of professional experience building iOS applications.
• Strong proficiency with Swift, SwiftUI, UIKit and iOS architectural patterns.
• Experience optimizing performance for mobile apps under varying conditions.
• Experience working in a self-driven, lean environment.
• Commitment to Wikimedia Foundation's mission and values.

Responsibilities

• Delivery of medium complexity initiatives from technical discovery through delivery; break down into features and manage scope.
• Lead implementation to improve mobile Wikipedia product experiences for a multilingual audience on iOS.
• Build tests, observability, and debugging capabilities; instrument features for deeper product analysis.
• Collaborate with product, design, analytics, and native engineers to balance user needs, constraints, and timelines.
• Identify high-impact opportunities and risks; align team priorities and sequencing.
• Maintain adherence to team standards in design, testing, accessibility, and documentation.
• Plan work with awareness of downstream and upstream effects.

Skills

Swift

SwiftUI

UIKit

iOS

Performance optimization

Lean environment

Autonomy

Education

Bachelor's degree in computer science

Master's degree in CS (optional)

PhD in CS/STEM (optional)

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. This fully remote role requires availability across 14:00–21:00 UTC and aims to enhance the iOS experience for a global audience.

You will deliver medium complexity initiatives, lead system design for mid-size projects, and collaborate with product, design, and analytics to drive measurable outcomes.