Senior Network Administrator/Engineer

LifeLens 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.

Role Overview

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

Key Responsibilities

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

Required Qualifications

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, LibreNMS, SolarWinds, 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

Preferred Experience

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 GovCloud networking

Industry certifications (CCNP, CCIE, PCNSE, or equivalent)

Benefits

Health, Dental & Vision Insurance

Paid Time Off

401(k)

Stock option incentive plan