Senior Network Administrator​/Engineer

Life Lens Technologies, Inc. is a fast-growing healthcare technology startup building secure, resilient, and scalable private cloud infrastructure to power our next-generation health monitoring solutions. Our platform supports critical healthcare operations requiring the highest standards of security, compliance, and reliability.

We're seeking a Senior Network Administrator/Engineer with deep expertise in enterprise networking, datacenter infrastructure, and security architectures. This is a foundational role for someone who thrives in greenfield environments—where you'll design and build secure, high-performance network infrastructure across multiple datacenters supporting healthcare workloads. You will be instrumental in establishing our network backbone, ensuring compliance with healthcare regulations, and enabling secure connectivity for our private cloud and edge deployments.

This is a full-time, on-site position

• Design, implement, and manage physical datacenter switching fabric including core, top-of-rack (TOR), and aggregation layers using enterprise platforms (Dell OS10, Arista, Cisco, etc.)
• Architect and maintain robust Layer 2/3 enterprise networking including VLANs, LACP/link aggregation, jumbo frames, MTU optimization, QoS policies, and routing protocols (OSPF, BGP)
• Implement and manage enterprise firewall architectures (Sophos XGS, Palo Alto, Fortinet) including network segmentation, NAT, site-to-site and remote access VPNs, and deep packet inspection
• Design and deploy SDN solutions (Cilium, Flannel, Open vSwitch, VXLAN overlays) to support multi-tenant Kubernetes environments and cloud-edge workloads
• Implement Zero Trust networking principles and modern identity‑aware firewall policies
• Configure and manage secure remote access solutions for distributed teams and multi‑site connectivity
• Deploy, configure, and manage comprehensive network monitoring systems including traffic analysis, flow monitoring, SNMP‑based monitoring, and network performance tools
• Implement and manage network‑level authentication solutions including RADIUS, 802.1x, and Network Access Control (NAC) integrated with SSO/identity providers
• Support multi‑datacenter connectivity including SDN overlays, MC‑LAG configurations, and WAN optimization
• Collaborate with Systems Engineering team to integrate network infrastructure with Kubernetes deployments and storage systems
• Ensure network infrastructure meets FedRAMP, HIPAA, and FDA 510(k) compliance requirements
• Develop and maintain network documentation, diagrams, and runbooks
• Participate in on‑call rotation for critical network infrastructure

• 7–10+ years of experience in enterprise networking or network engineering roles
• Expert‑level knowledge of physical network administration with enterprise switches, spanning tree, VLANs, and link aggregation
• Strong hands‑on experience with Layer 3 routing protocols (OSPF, BGP) in production environments
• Proven experience designing and implementing enterprise firewall architectures with segmentation strategies
• Deep experience with network monitoring systems (PRTG, Nagios, Libre
  
  NMS, Solar Winds, or similar) including implementation, configuration, and alerting
• Experience with SDN technologies, overlay networks, and network virtualization
• Strong knowledge of network authentication protocols (RADIUS, TACACS+, 802.1x) and integration with enterprise SSO solutions
• Deep understanding of network security principles including VPNs, IDS/IPS, and access control
• Experience with network automation and scripting (Python, Ansible, or similar)
• Strong troubleshooting skills for complex network issues across OSI layers
• Excellent documentation and communication skills

• Experience with Kubernetes network policies and CNI plugins (Cilium, Calico, Flannel)
• Familiarity with healthcare compliance frameworks (HIPAA, FedRAMP, NIST 800‑53)
• Experience in multi‑datacenter environments with SDN overlays or MC‑LAG
• Exposure to IoT or edge compute networking requirements
• Experience with Azure Government or AWS Gov Cloud networking
• Industry certifications (CCNP, CCIE, PCNSE, or equivalent)

• Health, Dental & Vision Insurance
• Paid Time Off
• 401(k)
• Stock option incentive plan