Principal Software Engineer--M365 Networking Team

Full Job Description

Design and implement routing, traffic-management, and load-balancing capabilities to support scenarios across M365, including Copilot. Optimize traffic distribution based on service health and available capacity to improve performance, resilience, and resource utilization. Build distributed, highly available, and resilient systems. Work with services spanning thousands of servers, processing tens of billions of transactions, and serving hundreds of millions of users. Drive technical excellence through code reviews, architecture design. Bachelor'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 equivalent experience. These requirements include but are not limited to the following specialized security screenings: Master'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, Rust, or Python OR Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, Rust, or Python or equivalent experience. Solid understanding of computer science fundamentals, including data structures, algorithms, and object-oriented design. Experience developing, testing, and debugging backend services or distributed systems. Demonstrated problem-solving skills, with the ability to diagnose software issues and deliver reliable, maintainable solutions. Effective communication and collaboration skills, with the ability to work across teams to deliver features end to end. 3+ years of industry experience in service development, successfully shipping services through multiple releases. Solid understanding of distributed systems; experience with networking, traffic management, or load balancing is a plus. Familiarity with AI/ML-driven decision systems. A passion for quality and a record of delivering results while working on large-scale distributed systems. Experience developing large-scale online services with robust performance, resiliency, telemetry, and security. Effective communication and collaboration skills, including working across organizational boundaries in a dynamic, agile environment. A self-motivated, customer-focused approach and a passion for improving engineering practices and producing high-quality software. Experience with DNS architecture, resolution, and troubleshooting, particularly in large-scale cloud services; familiarity with DNS-based traffic management and load balancing is a plus.

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