Senior Software Engineer

Microsoft's Defender for Office (MDO) team is seeking a Senior Software Engineer to join their Foundations organization. MDO delivers cloud-based email and message filtering services that protect customers from advanced threats (malware, phish, fraud, and spam) in Microsoft's email and Teams collaboration workloads.

The role focuses on building the next iteration of services supporting MDO's future, including optimizing existing architecture for major value savings, embracing new technologies, and enhancing product agility while raising security & quality standards. Working in the Foundations organization, you'll be responsible for helping transform MDO's infrastructure and capabilities.

As a Senior Software Engineer, you'll work in an agile environment, collaborating with peer engineers, Product Management, and Substrate partners to develop durable solutions meeting customer needs. The position requires expertise in distributed systems, security practices, and modern cloud architectures.

The role offers competitive compensation ($117,200 - $229,200 base salary range) and comprehensive benefits including healthcare, educational resources, and parental leave. Microsoft provides a collaborative, inclusive work environment focused on growth and innovation, with opportunities to work on high-impact security solutions protecting millions of users.

Key responsibilities include implementing safe deployment practices, mentoring other engineers, collaborating across teams, and continuously improving the codebase through modern best practices. The ideal candidate will have 4+ years of engineering experience, strong distributed systems knowledge, and a passion for building secure, scalable solutions.

This position plays a crucial role in Microsoft's security infrastructure, helping protect customers as they navigate an ever-changing security landscape. Join a team at the forefront of Microsoft's investment in customer protection, working with cutting-edge technologies and making a significant impact on global cybersecurity.