Quidsi, Inc., a subsidiary of Amazon, is one of the fastest-growing e-commerce retailers in the world. We own and operate nine retail sites, selling everything from baby needs (Diapers.com) to pet foods (Wag.com) to green and organic goods (Vine.com). Our sites are host to millions of daily visitors and our warehouses are run by hundreds of autonomous robots. We sell and ship more stuff before breakfast than most e-commerce sites do all year. Needless to say, our customers are crazy about us, and the feeling is mutual. Our entire operation, from our websites and apps to our fulfillment centers to our customer care center, is rabidly focused on creating a marvelous end-to-end customer experience. Job Description This position is for a senior mobile software development engineer looking to architect, build, and deliver impressive iPhone and iPad experiences. Growing mobile engagement is a core strategic goal for the company and mobile is its fastest growing channel. You will be part of the small but dangerous Quidsi Mobile team, owners of all of Quidsi's iPhone, iPad, and Android apps. We also manage the mobile-optimized versions of our main sites. About You - You dream in Objective-C and know your provisioning profile ID by heart. - You are passionate about technology and the pursuit of the perfect user experience, but: - You know when the right solution isn't necessarily the technical one. - You shop on your phone and know how it could be done better. - You always read the release notes. - You challenge yourself and others to constantly come up with better solutions. - You use pragma marks and hate inelegant code. - You are looking for projects that wow. Responsibilities - Design and architect new apps and new features for Quidsi's mobile solutions - Work closely with product and user experience to deliver Quidsi site experiences to iPhones, iPads, and iPod Touches. - Implement native applications for iOS that are functional, beautiful, and a pleasure to use. Just like iOS itself! - Propose, prototype, and evaluate areas of optimization for our e-commerce applications and mobile-optimized sites. - Build and deliver secure, scalable, and low-latency services and mobile applications. - Meet with marketing and merchandising stakeholders to define functional solutions for business problems. - 2+ years professional software development experience - 1+ years of app development experience for iPhones and iPads using Objective-C- B.S. or M.S. in Computer Science or related field - Knowledge of user-centered design principles coupled with a ldquo;Don't make me think rdquo; understanding of usability - Experience in web technologies such as JavaScript, JQuery, JQuery mobile, AJAX and HTML5 - API/backend development experience - Demonstrated ability to manage expectations, meet firm deadlines, and thrive in a dynamic work environment- Deep knowledge of the iOS platform, core frameworks, and popular 3rd-party libraries- Excellent debugging, critical thinking, and communication skills- Proven experience architecting large, complex software solutions with an eye toward security and scalability.tch1.qds.crp.