About the job
The Principal Software Engineer job focuses on architecting low-latency proxies and enhancing DDoS defenses while leading reliability at a global scale. This position plays a crucial role in ensuring secure, fast, and resilient internet-facing experiences for Microsoft and its customers. The team values collaboration, mentorship, and a culture of inclusion, where everyone can thrive.
You'll be responsible for
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Architecting and building edge services
Architect and build internet-scale, low-latency edge services (proxies, load balancers, TLS offload, routing pipelines, caching layers) across hundreds of global sites and thousands of nodes.🛡️
Designing DDoS protection services
Design and build services that provide L4/L7 DDoS protection, HTTP-level CDN, global load balancing, and WAF capabilities.🔍
Leading reliability by design
Lead reliability by design: champion SLOs, error budgets, and graceful degradation patterns; instrument systems end-to-end, drive telemetry-driven engineering and automated mitigations.Key criteria
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10+ years in distributed systems
Proven experience building and operating high-throughput, low-latency services.View
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Strong systems programming skills
Proficiency in C/C++ and/or Rust with deep understanding of performance profiling.View
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Expertise in networking protocols
In-depth knowledge of TCP/UDP, DNS, TLS, HTTP/1.1–3, and QUIC.View
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