Open Data Kit (ODK, https://opendatakit.org) provides free and open source tools for social good organizations to collect data quickly, accurately, offline, and at scale. ODK has been used to collect billions of data points around the world. Example projects include gathering real-time election data in emerging democracies (https://youtu.be/O-CGzo3m4PA), forest monitoring in Indonesia (https://vimeo.com/109241884), and tracking polio vaccinations in the Middle East (https://youtu.be/zROyvrvt-zk). ODK's design enables novice users to collect data in challenging environments and its robustness in these environments has driven the platform's adoption and evolution. Additionally, building an open source community (https://github.com/opendatakit) around ODK has allowed it to benefit from code and content contributions from users, implementers, and developers. Nafundi (https://nafundi.com) is a company started by founders of ODK that offers professional services and software customization for ODK tools. We are seeking a software developer with Android experience to improve ODK Collect (https://github.com/opendatakit/collect). The ideal candidate is passionate about improving code quality and is interested in designing and building new features across the ODK platform. Responsibilities include: * Add tests to ODK Collect and improve code quality * Introduce, document and advocate for Android best practices * Work with the community to specify new features * Implement new features * Review other community members' code * Mentor contributors Minimum qualifications: * Experience creating and publishing Android applications * Experience working with, testing and improving legacy code * Demonstrated ability to self-motivate (side project, open source contributions) Preferred qualifications: * Interest in design, user interfaces, and user experience * Code contributions to open source projects, Android preferred * Experience working remotely and with globally distributed teams What we offer: * A chance to contribute to a project with broad social impact * A distributed, open, and fun community eager for software improvements * Location independence * Flexible contract-based arrangement Contract rate and length are negotiable based on experience and interests. If this sounds like a good fit, please send a brief email describing your interest, links to the Android applications you have worked on, and your resume to jobs@nafundi.com with subject: Experienced Android Developer for Open Data Kit.