Sr VMware Engineer (NSX)

Job Overview:

Specific Duties and Responsibilities:

Design, deploy, configure, operate, and sustain VMware NSX-T / VMware Cloud Foundation Networking across production, development, test, and mission environments.
Engineer NSX Manager clusters, transport nodes/profiles, transport zones, uplink profiles, VDS/N-VDS networking, and NSX Edge clusters.
Design and administer overlay and VLAN-backed segments, Tier-0/Tier-1 gateways, distributed routing, BGP, static routing, ECMP, route redistribution, and north-south/east-west connectivity.
Implement microsegmentation and Zero Trust-aligned controls using Distributed Firewall, Gateway Firewall, security groups, dynamic membership, tags, context profiles, and policy-based security.
Develop auditable, least-privilege firewall policies in coordination with cybersecurity, ISSO/ISSM, RMF, application, and network teams.
Integrate NSX with vCenter, vSphere, VCF, vSAN, VMware Aria Operations/Logs, PKI, identity, SIEM, vulnerability-management, and enterprise monitoring platforms.
Troubleshoot BGP/routing adjacency failures, MTU/TEP/Geneve issues, asymmetric routing, firewall processing, packet loss, performance degradation, and NSX Edge failures. 
Perform packet-level analysis using NSX CLI/nsxcli, vmkping, pktcap-uw, tcpdump-uw, Traceflow, flow monitoring, and distributed firewall analysis.
Lead NSX upgrades, patching, certificate replacement, migrations, backup/recovery validation, and lifecycle-management activities with formal implementation, test, validation, and backout plans.
Maintain engineering standards, configuration baselines, diagrams, firewall matrices, runbooks, and as-built documentation; provide Tier 3 escalation support and mentor junior engineers.

Required Qualifications:

5+ years of hands-on VMware NSX experience in enterprise-scale environments and 5+ years of VMware vSphere experience, including ESXi, vCenter Server, VDS, virtual networking, cluster operations, and troubleshooting.
Advanced NSX-T / VCF Networking expertise: overlay/VLAN segments, Tier-0/Tier-1 gateways, Edge Nodes/clusters, BGP, static routing, ECMP, route redistribution, Distributed Firewall, Gateway Firewall, dynamic groups/tagging, NAT, VPN, DHCP, and lifecycle operations.
Strong enterprise networking fundamentals: TCP/IP, DNS, DHCP, ARP, VLANs, VXLAN/Geneve, MTU, BGP, OSPF, VRFs, link aggregation, firewalling, NAT, load balancing, and network troubleshooting.
Experience in DoW, federal civilian, intelligence community, or other highly regulated environments with formal change control, security approval, documentation, and audit requirements.
Working knowledge of RMF, ATO, DISA STIGs, POA&Ms, vulnerability management, security controls, continuous monitoring, and remediation of applicable security findings.
Strong written and verbal communication skills, including technical diagrams, implementation plans, SOPs, security documentation, and executive-ready status updates.
One current VMware/Broadcom networking, security, or VMware Cloud Foundation certification, such as VCP-NV, VMware Cloud Foundation Administrator, VMware Cloud Foundation Architect, or a comparable current NSX/VCF networking certification.

Desired Skills:

Experience designing or supporting VMware Cloud Foundation, including SDDC Manager, workload domains, lifecycle management, vSphere, and NSX integration.
Experience integrating NSX with Cisco Nexus, Juniper, Palo Alto Networks, F5, or similar enterprise technologies.
Experience with VXLAN/Geneve overlays, BGP underlay/overlay routing, multi-rack architectures, and highly available network services.
Automation / Infrastructure as Code experience using PowerShell/PowerCLI, Ansible, VMware Aria Automation, REST APIs, Git, YAML, and JSON.
Experience integrating NSX telemetry and logs with Splunk, Elastic, or comparable SIEM/observability platforms.
Experience with enterprise PKI, certificate lifecycle management, Active Directory, LDAP, identity federation, RBAC, privileged-access management, and MFA.
Experience supporting classified, disconnected, air-gapped, or tactical-edge environments.
Familiarity with Dell PowerEdge, Cisco UCS, HPE, DISA STIG Viewer, SCAP scanning, ACAS/Nessus, and POA&M remediation workflows.
NSX Architecture: NSX Manager clusters, transport zones/nodes, Edge clusters, segments, gateways, and security policies.
Routing: BGP, static routing, ECMP, route redistribution, Tier-0/Tier-1 routing, and physical-network integration.
Network Security: Microsegmentation, Distributed/Gateway Firewall, dynamic groups, tagging, rule analysis, and least-privilege policies.
vSphere Networking: vCenter, ESXi, VDS, VMkernel, vmnic, port groups, cluster networking, and host-level troubleshooting.
Advanced Troubleshooting: Traceflow, NSX CLI, ESXi packet capture, BGP diagnostics, flow analysis, logs, and packet-level troubleshooting.
Operations & Compliance: Upgrades, backup/recovery, certificates, lifecycle management, RMF, STIGs, ATO support, vulnerability remediation, and change control.
Automation & Documentation: PowerCLI, Ansible, REST APIs, Git; diagrams, runbooks, firewall matrices, test plans, validation procedures, and backout plans.

Required Clearance

• Active DoD TS/SCI

• Some travel may be required: Must have valid driver’s license and transportation. This is subject to change at the direction of the customer.
• If accommodation is needed with your application or the interview process for applicants with disabilities, please contact Human Resources at 703-594-8601.
• Candidate must have the ability to lift up to 50 lbs.
• Must have willingness to perform duties not listed in the job description as required by INflow and our customer.