YOU ARE hellip; hellip; a smart, experienced full-stack web developer with operations experience, who enjoys working with (and learning from) other smart engineers. You are passionate about Wikimedia's mission to bring free knowledge to every person on the planet, and you want to make Wikipedia and other Wikimedia-operated websites better with a special focus on its community giving initiatives targeting hundreds of thousands of donors. You want to make a difference in millions of peoples' lives.Ideally, you're not unfamiliar with the world of non-profit fundraising, and perhaps you're even a contributor to the MediaWiki software platform used by Wikimedia. You understand the principles of open source software development, the importance of testing and documentation, and the common pitfalls in developing secure web applications.On the back end, you enjoy the technical challenges associated with managing a database of hundreds of thousands of donors, and want to support the fundraising team in gaining useful tactical and strategic information to improve its campaigns. You can competently optimize database queries, adjust server configuration settings, and develop new features.On the front end, you enjoy building beautiful, functional and standards-compliant websites that are understandable and appealing to users. You are comfortable working with designers, but you also enjoy building your own designs from scratch. Testing your HTML, CSS and JS in every major web browser is a normal part of your job. Building smart and compelling visualizations is the kind of project you can get really into.The thought of being a part of an engineering team in the middle of Wikimedia's annual fundraising campaign, daunting as it may be, appeals to you, and you fully recognize the importance of your work. You can manage the stress and demands of an annual fundraising campaign, where tactical decisions have to be made quickly. You thrive in a team of smart open source developers, and you're looking forward to making an impact. If much or all of this applies to you - please send us a thoughtful application letter and tell us why you're the right person for the job! :-)DescriptionDevelop, test, and deploy:extensions to the MediaWiki platform necessary to support the donor pipelinenew features, improvements, and upgrades to Wikimedia's fundraising database, CiviCRM, and related Drupal extensionsfunctionality for managing fundraising campaigns on Wikimedia's web sites, via e-mail, on mobile platforms, in social media, and beyondfunctionality for targeting fundraising messages and tracking their successnew payment systems and processes, including improved support for credit card fraud prevention, mobile giving, and new currenciesenhanced data security of the entire fundraising pipeline for PCI complianceWork closely with designers to design, test, and implement:central designs and messaging of Wikimedia's campaignsnew banners, landing pages, forms, and interactive functionality related to Wikimedia's fundraising effortsvisualizations related to donations, donor comments, and donor story submissions to provide analysis and reports, and to create an immersive and compelling donor experience, creating a sense of scale and significance associated with supporting WikimediaImprove efficiency, scalability, stability, and security of hellip;Mediawiki systemsFundraising donor pipelineNew solutions for the annual campaignAssist end users and Wikimedia and volunteer developers in identifying and resolving issues with the software and configuration of Wikimedia's fundraising web-sites, or support other Wikimedia website related technology initiatives with front-end development expertise.Configure, customize and develop other web-based and server-side software used to support fundraising operationsProvide dedicated technical support to Wikimedia's annual fundraising campaign (typically November to January)