Senior Full-Stack Engineer — Web, API & Cross-Platform Remote

Social Impact Guide; Northern (KY); Hybrid; USD 56,000 - 87,000; Full time

Job summary

The Wikimedia Foundation is seeking a Senior Software Web Engineer contractor to join the App Growth team within Core Experiences on a 3-month full-time contract. This role focuses on web-first product experiences, APIs, and platform integrations to scale features across platforms and deepen reader engagement.

You will design and build mobile web experiences, RESTful APIs, and reusable components while collaborating with product managers, designers, and native app engineers.

Qualifications

• Bachelor's degree in a relevant field and 5–10+ years of professional experience with production web applications.
• Strong professional experience with JavaScript/TypeScript, Vue.js, and backend languages such as PHP.
• Experience building responsive or mobile-first web experiences with attention to performance, accessibility, and usability.
• Experience designing and integrating with server-side APIs.
• Experience delivering in a self-driven, lean environment.

Responsibilities

• Delivery of medium complexity initiatives from technical discovery through delivery.
• Frontend implementation of mobile-first product experiences across web and app surfaces.
• Backend implementation of RESTful APIs and scalable data pipelines.
• Quality, testing and observability to enable deep analytics for product analysts.
• Cross-functional collaboration with product managers, designers, analysts, and native app engineers.
• Prioritization of high-impact opportunities and transparent communication of trade-offs.

Skills

JavaScript/TypeScript

Vue.js

APIs design

Web accessibility

Performance optimization

Self-driven / lean environment

Remote collaboration

Web-based cross-platform integration

Education

Bachelor's degree in Computer Science or related field

Tools

PHP

MediaWiki

Drupal

WordPress

Job description

The Wikimedia Foundation is seeking a Senior Software Web Engineer contractor to join the App Growth team within Core Experiences on a 3-month full-time contract. This role focuses on web-first product experiences, APIs, and platform integrations to scale features across platforms and deepen reader engagement.

You will design and build mobile web experiences, RESTful APIs, and reusable components while collaborating with product managers, designers, and native app engineers.