Senior iOS Engineer — Remote, Build Wikipedia Apps

Wikimedia Foundation; Colorado Springs (CO); Remote; USD 90,000 - 140,000; 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 remote role requires alignment to a 14:00–21:00 UTC window for collaboration across a global team.

You will drive medium complexity iOS initiatives, design scalable components, and collaborate with product, design, and analytics to improve shared knowledge and readership engagement.

Qualifications

• Bachelor's degree and 5–10+ years building iOS applications.
• Strong experience with Swift, SwiftUI, UIKit, and iOS architecture patterns.
• Experience optimizing iOS performance for diverse conditions.
• Experience in a self-driven, lean environment.
• Commitment to Wikimedia Foundation's mission.

Responsibilities

• Deliver medium complexity initiatives from discovery through delivery, breaking work into features and managing scope.
• Lead design and implementation of mobile components and system design for medium-sized projects.
• Build easily testable, observable, and debuggable software.
• Collaborate with product managers, designers, analysts, and other engineers to balance user needs and technical constraints.
• Identify high-impact opportunities and align team priorities and timelines.
• Adhere to team standards for code review, testing, documentation, accessibility, and observability.
• Plan work with awareness of downstream and upstream effects.
• Communicate clearly across engineering, product, and non-technical audiences.

Skills

Swift

SwiftUI

UIKit

iOS architecture

Performance optimization

Lean environment

Communication

Remote collaboration

Education

Bachelor's degree in CS or related

Master's/PhD (preferred)

Tools

Xcode

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 remote role requires alignment to a 14:00–21:00 UTC window for collaboration across a global team.

You will drive medium complexity iOS initiatives, design scalable components, and collaborate with product, design, and analytics to improve shared knowledge and readership engagement.