Sr Software Engineer

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Cyber threats are a growing concern, impacting individuals and organizations worldwide. At Microsoft Security, we are committed to protecting users through intelligent, scalable, and resilient security solutions.

We are looking for a passionate and experienced Senior Software Engineer to join the Microsoft Defender for Office (MDO) team.

This role offers the opportunity to build and scale cloud-native security systems that protect millions of users from sophisticated threats like phishing, malware, and business email compromise.

• Bachelor's / Master's in computer science or related technical field AND 7+ years technical engineering experience with proficiency coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
• Experience building distributed systems and working with cloud platforms
• Expertise in HD Insight Spark, data processing is strong plus.
• Demonstrated ability to work independently and collaboratively in a fast-paced, agile environment.
• Strong debugging and problem-solving skills, especially in live site and production scenarios.
• Experience with DevOps practices, CI/CD pipelines, and observability platforms (e.g., Kusto, Application Insights).
• Exposure to Big Data technologies and AI/ML-driven systems is advantageous.

Other Requirements –

• Bachelor's / Master's in computer science or related technical field

• Design and implement high-scale, low-latency backend services and data pipelines hosted in Azure to support MDO’s threat detection and remediation workflows.
• Make architectural decisions that shape the future of MDO’s security infrastructure and influence cross-team technical direction.
• Collaborate with PMs and partner teams to deliver end-to-end features that enhance threat protection capabilities.
• Lead investigations and resolution of live site issues, driving improvements in service reliability and incident response.
• Contribute to architectural discussions, code reviews, and engineering best practices across the team and broader MDO organization.
• Develop and refine internal tools and observability systems to improve diagnostics, telemetry, and operational efficiency.
• Mentor junior engineers and foster a culture of innovation, inclusion, and continuous learning.