Join the COSMIC team within Microsoft's M365 Substrate Core organization as a Senior Software Engineer to lead the development of security features for a global-scale Kubernetes-based service platform. You will work closely with various teams to embed security into COSMIC, ensuring compliance with Microsoft’s SDL and secure coding practices while supporting zero-trust principles and secure deployment strategies. The role involves designing and implementing robust security solutions in distributed systems, requiring expertise in areas such as secrets management, threat modeling, and key or certificate management. This position offers the opportunity to enhance your skills and become a leader in securing modern cloud infrastructure at scale within Microsoft’s Experience and Devices division.
Ensures compliance with Microsoft’s SDL and secure coding practices.
Supports zero-trust principles in operational practices.
Implements secure deployment processes for Kubernetes-based services.
Rotates certificates to maintain security standards.
Validates end-to-end security measures across the platform.
What we're looking for
Proven experience ensuring compliance with Microsoft Security Development Lifecycle (SDL) standards.
Strong background in secure coding practices and data handling policies.
Expertise in supporting zero-trust principles and secure operational practices.
Experience designing, building, or contributing to cloud-based services or distributed systems.
Demonstrated strength in technical design, architecture, and systems-level thinking.
Market check
Salary context
This
$119,800–$234,700
range sits above
75%
of similar postings on FindRole.
Peer median band
$119,800–$234,000
Median floor and ceiling across peers.
Typical midpoint (25–75%)
$143,625–$178,318
Middle half of comparable postings.
Based on 240 comparable postings.*
* 240 is the maximum number of comparable postings sampled.
Employer
About Microsoft
Microsoft Corporation is a global technology leader producing software, hardware, and cloud services including Windows, Office 365, Azure cloud platform, Xbox gaming, and Surface devices. Industry: Software & Cloud Computing
Microsoft currently has
451 open roles
on FindRole.
Listed pay typically runs
$119,800–$234,700
across 417 roles with salary data.