New 
Principal Software Engineer
 Microsoft | |
 United States, Washington, Redmond | |
 Oct 16, 2025 | |
|
OverviewCore Services Infrastructure and Security team in Microsoft Teams provides the foundational infrastructure, network, security, monitoring and governance to run planet scale distributed systems and microservices architecture that powers Microsoft Teams. Security and Reliability are at the heart of what this team aspires to do day in and day out. As a Principal Software Engineer in Teams Core Services Infrastructure and Security team you will be responsible for the Infra and Network Security, front door, routing, gateway, CDN, DNS and monitoring layers for the microservices powering Microsoft Teams. This opportunity will allow you to hone your skills in improving your security acumen working with experts in the space and become adept at troubleshooting and securing the network layer, and improve the reliability of such mission critical layers investing in active-active architectures at every possible level. 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.
ResponsibilitiesDrive strategic improvements in security policy and standards across the service and other stakeholders, while prioritizing development and implementation efforts. Proactively address service issues to ensure solutions address threats.Develop, test, and implement end-to-end optimization of code. Additionally, you develop, review, and provide feedback on code, scripts, systems, and/or platforms. Analyze data from telemetry pipelines and monitors tools that detail operations metrics. Identify optimal uses for existing tools and/or models to identify contributing factors or points of failure that are affecting the efficiency of complex systems.Lead by example and mentors others to produce extensible and maintainable code used across products.Leverage subject-matter expertise of cross-product features with appropriate stakeholders (e.g., project managers) to drive multiple group's project plans, release plans, and work items.Hold accountability as a Designated Responsible Individual (DRI), mentoring engineers across products/solutions, working on-call to monitor system/product/service for degradation, downtime, or interruptions.Proactively seek 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 and shares knowledge with other engineers.Embody our culture and values | |