The Windows Connected Experiences team is looking for a highly motivated and innovative **Senior Software Engineer** to break new ground as we take our products to orders of magnitude higher scale and rock-solid reliability, build out the intelligence capabilities to dramatically deepen user engagement and create a great cross-device experience. The team is responsible for connected experiences including Phone Link which enable PC users to access capabilities from their Android and iOS phones. As part of the platform team, you will contribute to the services and connectivity fabric powering connected experiences for millions of Windows users. This position will be responsible for areas related to device pairing and cross device communication including protocol design and implementation, security and authentication and integration with cloud services and mobile operating systems. Our mission it to help our customers achieve more by breaking the productivity limiting boundaries between devices (via cross-device features) and create seamless continuity between the Mobile and PCs. Together with our partners, we are building engaging & differentiated cross device experiences across Windows PCs & Mobile Devices, strengthened by our best of breed expression of Mobile-first experiences on both 1st party & 3rd party hardware. We embrace a culture which is customer focused, collaborative, fun loving, delivers continuously and drives engineering excellence. We are a diverse team. We embrace people from all backgrounds, to help us build the best cross-device experience for people across the world. Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond. **Responsibilities** + Collaborates with appropriate stakeholders to determine user requirements for a scenario. + Drives identification of dependencies and the development of design documents for a product, application, service, or platform. + Creates, implements, optimizes, debugs, refactors, and reuses code to establish and improve performance and maintainability, effectiveness, and return on investment (ROI). + Leverages subject-matter expertise of product features and partners with appropriate stakeholders (e.g., project managers) to drive a workgroup's project plans, release plans, and work items. + Acts as a Designated Responsible Individual (DRI) and guides other engineers by developing and following the playbook, working on call to monitor system/product/service for degradation, downtime, or interruptions, alerting stakeholders about status and initiates actions to restore system/product/service for simple and complex problems when appropriate. + Proactively seeks new knowledge and adapts to new trends, technical solutions, and patterns that will improve the availability, reliability, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale. **Qualifications** **Required Qualifications:** + Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python + OR equivalent experience. **Preferred Qualifications:** + 2+ years of experience building applications and services in the cloud. + Demonstrated experience with application security assessment + Ability to communicate technical details clearly across organizational boundaries. + Experience in DevOps to maintain live services and\or application frameworks. + Cloud and services experience, with Azure cloud experience highly desirable. + Excellent analytical skills with systematic and structured approach to software design. Microsoft is an equal opportunity employer. Consistent with applicable law, all qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations (https://careers.microsoft.com/v2/global/en/accessibility.html) .