AITHERAS, LLC · 6 months ago
Senior Network Engineer
Manhattan, NY
Full-time
Hybrid
Senior Level, Lead/Staff
$135K/yr - $140K/yr
8+ years expAITHERAS, LLC is a customer-focused IT consulting firm delivering cost-effective, mission-critical solutions since 2002. The Senior Network & Security Engineer will design and implement network segmentation, enhance security visibility, and automate processes while also mentoring junior engineers.
AnalyticsCloud ComputingConsultingCyber SecurityData Management
Responsibilities
Design & Implementation – Build and migrate segmentation zones, VRFs, and BGP/OSPF fabrics across Cisco Nexus 9K, Juniper QFX/MX, and Palo Alto PA-Series
Security & Visibility – Stand up TACACS+/Cisco ISE for AAA, integrate flow telemetry into Cisco Secure Network Analytics (StealthWatch), deploy taps/SPANs/Gigamon, and tune IDS/IPS policies for OT & IT
Automation – Write and maintain Python/Ansible/Terraform pipelines (pyATS, Nornir, Jinja2) for golden-config generation, compliance drift detection, and CI/CD-based push-button rollouts
Operations & Incident Response – Serve as L3 escalation and join a 1-week-per-6 on-call rotation; own post-mortems and MTTR metrics
Documentation & Mentoring – Produce HLDs/LLDs, MOPs, and runbooks; coach junior engineers toward CCNP/PCNSE
Qualification
Required
8+ years progressive experience in enterprise or service-provider networking
Deep expertise configuring and troubleshooting BGP, OSPF, static routing, VRFs, VXLAN-EVPN
Hands-on with Cisco Catalyst/Nexus & ASA/FTD, Juniper EX / QFX / MX, and Palo Alto NGFWs (Pan-OS 9/10)
Solid command of AAA (TACACS+, RADIUS) and production deployments of Cisco ISE or equivalent
Practical experience deploying or operating flow-analytics / tap infrastructure (StealthWatch, Gigamon, NetFlow/IPFIX, SPANs)
Comfort writing Python and Ansible playbooks; git-based workflows (GitLab/GitHub, CI pipelines)
Familiarity with network IDS/IPS (Snort, Zeek, Palo Alto Threat Prevention) and SIEM workflows (Splunk, QRadar)
Ability to create HLD/LLD diagrams in Visio or draw.io and present them to technical & business leadership
U.S. work authorization and ability to commute to NYC area 3× week
Preferred
CCNP Enterprise/Security, PCNSE, JNCIS-ENT/Sec, or CCIE (R&S / Enterprise)
Cisco Secure Network Analytics design experience (flow collector sizing, policy tuning)
Prior exposure to industrial / OT networks (NIST 800-82, Purdue Model, SCADA segmentation)
AWS or Azure Advanced Networking certification; Transit Gateway design experience
Experience with F5 LTM/GTM or Citrix ADC in low-latency trading or fintech environments
Source-of-truth & intent platforms (NetBox, Nautobot), RESTful API development, or Go/Rust scripting
Benefits
100 % employer-paid medical / dental / vision
401(k) 5 % match
ESPP
$3 k annual cert stipend
Paid time for labs & conferences (Cisco Live, Palo Alto Ignite)
Company
AITHERAS, LLC
[uh-THEAR-us] means pure air in Greek, deriving from "Aither" defined by Aristotle as the "fifth element of air in continuous, circular motion.” Similarly, with continuous collaboration with our clients and technology partners, we strive for pure innovation and excellence.
11-50 employees
Funding
Current Stage
Early StageLeadership Team
Sohee Chu
Chief Innovation Officer
Company data provided by crunchbase