Senior iOS Engineer — Remote, Impactful App Growth

Social Impact Guide; San Francisco (CA); Hybrid; 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 4 hours daily between 14:00 UTC and 21:00 UTC, with a focus on delivering scalable iOS experiences for a global audience.

You will design and implement features, optimize performance, and ensure quality with strong cross-functional collaboration across product, design, and analytics. Join a mission-driven team advancing free knowledge.

Qualifications

• Bachelor's degree and 5-10+ years building iOS apps.
• Strong experience with Swift, SwiftUI, UIKit.
• Experience optimizing iOS performance in diverse conditions.

Responsibilities

• Delivery of medium complexity initiatives from discovery through delivery.
• Lead system design for medium-sized projects and build scalable components.
• Ensure code is easy to test, observe, and debug with good observability.
• Partner with product managers, designers, analysts, and native app engineers.
• Identify high-impact opportunities and align team priorities.

Skills

Swift

SwiftUI

UIKit

iOS Architecture

Performance optimization

Self-driven

Remote collaboration

Communication

Education

Bachelor's degree in CS or related

Tools

Xcode

Instruments

Git

CI/CD

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 4 hours daily between 14:00 UTC and 21:00 UTC, with a focus on delivering scalable iOS experiences for a global audience.

You will design and implement features, optimize performance, and ensure quality with strong cross-functional collaboration across product, design, and analytics. Join a mission-driven team advancing free knowledge.