Senior Cloud Network Engineer - CTJ - Poly

About the role

We are looking for a Senior Cloud Network Engineer to join a fast-paced team and solve complex problems in the domain of mission-critical distributed systems spanning data transmission across clouds. Our team works across all facets of isolated system engineering but we are responsible for a large diversity of technologies and challenges, including process automation, Wide Area networking design, operations and implementation, physical fiberoptic cables, how to route packets across a global network as fast as possible, DNS, protection against DDoS, and many other problems. We need your help overcoming these challenges. In this role, you will have the opportunity to automate, build, deploy and support systems which enable a broad set of Azure services to be consumed by customers in a highly secure and regulated industry. The systems you help support are required to meet strict security policy and assurance requirements of both public and private sector customers. We’re looking for engineers and leaders passionate about delivering value to customers in mission critical environments and eager to take on a fantastic opportunity that offers technical and career growth with Microsoft. Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Responsibilities

• Maintain & Operate Networks: Designs proactive solutions to optimize infrastructure, resolve issues, and improve performance using automation and simple designs.
• Troubleshoots complex live site issues using deep knowledge of network components, tools, and APIs; ensures sustainable, automated fixes with minimal customer impact.
• Participates in on-call duties and mentors others.
• Contributes to incident response across teams, ensures quality postmortems, and analyzes historical data to identify and prioritize recurring issues.
• Leverages data to assess impact, identify trends, and drive decisions that enhance network performance and customer experience.
• Network Design and Implementation: Handle Layer 3 technologies, including IPv4, BGP, OSPF, IPv6, ECMP. Apply technical knowledge of enterprise networking solutions for very large environments, at scale (e.g., MPLS/BGP, IS-IS, routing, switching, SDN/NFV, EVPN VXLAN), and have knowledge of SD-WAN technologies.
• Supports design and security reviews to prevent issues pre-release, using expertise in network implementation, telemetry, and root cause analysis.
• Collaborates across teams to develop scalable, high-performance network designs and independently create design and implementation plans.
• Supporting People and Execution: Shares information effectively across teams, manages dependencies, and seeks feedback and mentorship.