Senior Data Center & Cloud Networking Engineer (Technology Specialist III) - Digital and Technology Partners - Network Services - Hybrid/Onsite

We are seeking a highly experienced Senior Data Center & Cloud Networking Engineer to join our team in a hybrid capacity (3 days onsite / 2 days remote) at Mount Sinai Health System. This role requires a subject matter expert with deep expertise in modern data center architectures and cloud connectivity, responsible for designing, implementing, and operating scalable, secure, and high-performance hybrid network environments.
The ideal candidate will lead initiatives across data center networking, VXLAN/EVPN fabrics, and cloud on-ramp solutions (e.g., Equinix, Azure, AWS, OCI) while ensuring operational excellence across the enterprise.
 

• Lead the architecture, design, and deployment of next-generation data center networks based on Cisco Nexus (NX-OS), VXLAN/EVPN fabrics, and spine-leaf designs
• Design and implement hybrid cloud connectivity solutions, including: 
  • Azure ExpressRoute
  • AWS Direct Connect
  • OCI FastConnect
  • Colocation/on-ramp providers such as Equinix Fabric
• Own and optimize Layer 2/Layer 3 protocols, including BGP (underlay/overlay), multicast, and advanced routing strategies
• Serve as the SME for Nexus platforms, including Nexus 9K, Fabric Extenders (FEX), and data center switching architectures
• Architect secure, resilient, and scalable connectivity between on-prem data centers, colocation sites, and public cloud environments
• Develop and maintain network design documentation, diagrams, standards, and runbooks
• Lead troubleshooting of complex, multi-domain network issues, including hybrid cloud and data center fabrics
• Drive network automation and operational efficiency initiatives where applicable
• Partner with cloud, security, and infrastructure teams to deliver integrated solutions
• Evaluate emerging technologies and recommend enhancements aligned with business and architectural strategy
• Mentor junior engineers and provide technical leadership across the networking domain

• Bachelors degree in a technical discipline; Masters degree preferred .
• 8 years minimum experience (higher preferred), 12 years of related experience, including a demonstrated ability in technology area. In-depth knowledge of associated technology areas that could impact area of responsibility; healthcare technology experience preferred.

• 10 - 15+ years of experience in enterprise networking, with strong focus on data center and cloud networking
• Deep expertise with: 
  • Cisco Nexus (NX-OS) platforms
  • VXLAN/EVPN architectures (design, deployment, troubleshooting)
  • Spine-leaf data center designs
• Proven experience with cloud networking and private connectivity, including: 
  • Azure ExpressRoute
  • AWS Direct Connect
  • OCI FastConnect
  • Equinix or similar cloud exchange/on-ramp solutions
• Advanced knowledge of routing and switching protocols (BGP, multicast, STP, etc.) in large-scale environments
• Strong experience designing and supporting hybrid and multi-cloud network architectures
• Demonstrated ability to troubleshoot complex, cross-platform network issues

• Cisco certifications such as CCNP, CCIE (Data Center or Enterprise), or equivalent
• Experience with network automation tools (Python, Ansible, Terraform, Catalyst Center)
• Exposure to security architectures (segmentation, zero trust, microsegmentation)
• Experience in large-scale enterprise or healthcare environments

• Strong leadership and technical mentoring skills
• Excellent communication and cross-functional collaboration abilities
• Strategic thinker with hands-on engineering depth
• Commitment to continuous learning and staying current with evolving cloud and data center technologies
  Natural team player
   

Non-Bargaining Unit, 294 - DTP Network Services - MSH, Mount Sinai Hospital