Senior Software Engineer - M365 Core

Microsoft is seeking a Senior Software Engineer - M365 Core to join their COSMIC team, which focuses on building a secure and modern Kubernetes-based service platform. The role involves collaborating with various teams to implement security features and enhance the platform's capabilities.

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
• Ensures compliance with Microsoft security standards, including SDL, secure coding practices, and data handling policies
• Supports secure operational practices, including zero-trust principles, certificate rotation, secure deployment, and end‑to‑end validation

Requirements:

• Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
• Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
• Master's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR 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
• Experience designing, building, or contributing to cloud-based services or distributed systems
• Demonstrated strength in technical design, architecture, and systems-level thinking
• Experience working with one or more security-related areas, such as secrets management, threat modeling, vulnerability mitigation, key or certificate management, or identity and access systems