Software Engineer III, Fundraising Tech
Quick Summary
Summary We are searching for an experienced full-stack software engineer to join the Wikimedia Fundraising Technology team. Each year,
We are searching for an experienced full-stack software engineer to join the Wikimedia Fundraising Technology team. Each year, small donations from hundreds of thousands of individuals constitute the majority of the budget for the Wikimedia Foundation. This money is used primarily for projects, such as Wikipedia, and operational costs. We are looking for someone who wants to help Wikimedia’s non-profit fundraising efforts to become more accessible worldwide, while maintaining integrity and scalability across changing markets and over numerous engagement methods.
- Support Wikimedia’s online fundraising goals worldwide by developing tools and features that empower users to create effective fundraising campaigns
- Write code to integrate with payment providers and other tools and services, both internal and third-party
- Help the team surface important patterns and trends by improving internal visibility and reporting capabilities
- Share the ongoing responsibility of maintaining the security and integrity of the existing donation infrastructure
- Provide an increased level of engineering support during high-traffic or critical campaigns
- Two years experience developing in PHP or similar web scripting language(s)
- Experience developing, deploying, and debugging in LAMP environments
- BS in Computer Science or the equivalent in relevant work experience
- Knowledge of MySQL and other relational databases
- Comfortable working with JavaScript/HTML/CSS for front-end development
- Experience integrating with third-party web APIs, and maintaining those integrations
- Highly collaborative work style
- Ability to work confidently in open source environments
- Open-source software architecture and development
- Payments-related code
- CiviCRM or other customer relationship management software
- MediaWiki and other open source PHP-based content management systems
- Working remotely, or with a distributed team
- Developing and maintaining software with high security and accuracy requirements, at scale
The Wikimedia Foundation is the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. Our vision is a world in which every single human can freely share in the sum of all knowledge. We believe that everyone has the potential to contribute something to our shared knowledge, and that everyone should be able to access that knowledge freely. We host Wikipedia and the Wikimedia projects, build software experiences for reading, contributing, and sharing Wikimedia content, support the volunteer communities and partners who make Wikimedia possible, and advocate for policies that enable Wikimedia and free knowledge to thrive.
The Wikimedia Foundation is a charitable, not-for-profit organization that relies on donations. We receive donations from millions of individuals around the world, with an average donation of about $15. We also receive donations through institutional grants and gifts. The Wikimedia Foundation is a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California, USA.
As an equal opportunity employer, the Wikimedia Foundation values having a diverse workforce and continuously strives to maintain an inclusive and equitable workplace. We encourage people with a diverse range of backgrounds to apply. We do not discriminate against any person based upon their race, traits historically associated with race, religion, color, national origin, sex, pregnancy or related medical conditions, parental status, sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, or any other legally protected characteristics.
The Wikimedia Foundation is a remote-first organization with staff members including contractors based 40+ countries*. Salaries at the Wikimedia Foundation are set in a way that is competitive, equitable, and consistent with our values and culture. The anticipated annual pay range of this position for applicants based within the United States is US$92,267 to US$118,045 with multiple individualized factors, including cost of living in the location, being the determinants of the offered pay. For applicants located outside of the US, the pay range will be adjusted to the country of hire. We neither ask for nor take into consideration the salary history of applicants. The compensation for a successful applicant will be based on their skills, experience and location.
Listing Details
- Posted
- March 24, 2026
- First seen
- March 26, 2026
- Last seen
- April 22, 2026
Posting Health
- Days active
- 26
- Repost count
- 0
- Trust Level
- 30%
- Scored at
- April 22, 2026
Signal breakdown
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