Principal Software Engineer, Yahoo Mail

BS in Computer Science (or equivalent practical experience) with a minimum of 8 years of professional software engineering experience.

Specialized expertise in high-concurrency backend development using Java, C++, and Unix/Linux systems.

Deep conceptual and practical understanding of computer science fundamentals (data structures, multi-threading, memory management, and advanced algorithms).

Solid experience with search algorithms, as well as the design and query optimization of both Relational and NoSQL database architectures.

Demonstrated experience utilizing developer-facing AI productivity tools (such as CodeWhisperer or Copilot) to accelerate code output, optimize design patterns, and streamline testing.

Strong understanding of HTTP and TCP/IP protocols, with experience troubleshooting network-level performance and latency constraints.

Proven track record of technically leading complex engineering initiatives with minimal guidance and guiding teams through ambiguous technical challenges.

Strong written and verbal communication skills, with an ability to articulate complex technical ideas to both technical and non-technical stakeholders.

Experience designing, deploying, and operating highly distributed, large-scale mail applications and standard communication protocols.

Familiarity with leveraging secure LLM endpoints and frameworks (e.g., AWS Bedrock / SageMaker) for metadata tagging, intelligent search, or backend telemetry analysis.

Comprehensive experience with continuous integration and continuous deployment (CI/CD) pipelines, containerization (Docker, Kubernetes), and modern test automation frameworks.

Deep practical experience with GCP or AWS cloud architectures, particularly in managing hybrid cloud migrations and optimizing cloud resource efficiency.

Commitment to agile engineering practices (such as SCRUM or Kanban), actively driving workflow improvements and retrospective alignment.

The material job duties and responsibilities of this role include those listed above as well as adhering to Yahoo policies; exercising sound judgment; working effectively, safely and inclusively with others; exhibiting trustworthiness and meeting expectations; and safeguarding business operations and brand integrity.

At Yahoo, we offer flexible hybrid work options that our employees love! While most roles don’t require regular office attendance, you may occasionally be asked to attend in-person events or team sessions. You’ll always get notice to make arrangements. Your recruiter will let you know if a specific job requires regular attendance at a Yahoo office or facility. If you have any questions about how this applies to the role, just ask the recruiter!

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