Senior Network Engineer
Senior Network Engineer
Posted on :
22-07-2025
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1 Vacancy
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Job Description
Senior Network & Security Engineer
Location: New York Tri-State Area (NYC / Northern NJ / FairfieldWestchester CT)
Work Model: Hybrid 3 days on-site at primary data-center campus in Midtown Manhattan or Secaucus NJ; 2 days WFH.
Clearance: None required but ability to pass a Tier 2 public-trust background check is a must.
Travel: < 10 % (regional PoP / DR-site visits)About Us
AITHERAS LLC is a customer-focused IT consulting firm delivering cost-effective mission-critical solutions since 2002. We specialize in Data Analytics Cloud Computing IT Engineering Application Development and Cyber Security. Based in Rockville MD were ISO 9001:2015 certified an SBA-designated Small Business and an MBE-certified firm by MDOT. We partner with over 100 clients to create scalable innovative solutions that drive success.What Youll Do% Time Responsibility 40 % Design & Implementation Build and migrate segmentation zones VRFs and BGP/OSPF fabrics across Cisco Nexus 9K Juniper QFX/MX and Palo Alto PA-Series. 25 % 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. 15 % 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. 10 % Operations & Incident Response Serve as L3 escalation and join a 1-week-per-6 on-call rotation; own post-mortems and MTTR metrics. 10 % Documentation & Mentoring Produce HLDs/LLDs MOPs and runbooks; coach junior engineers toward CCNP/PCNSE.
Location: New York Tri-State Area (NYC / Northern NJ / FairfieldWestchester CT)
Work Model: Hybrid 3 days on-site at primary data-center campus in Midtown Manhattan or Secaucus NJ; 2 days WFH.
Clearance: None required but ability to pass a Tier 2 public-trust background check is a must.
Travel: < 10 % (regional PoP / DR-site visits)About Us
AITHERAS LLC is a customer-focused IT consulting firm delivering cost-effective mission-critical solutions since 2002. We specialize in Data Analytics Cloud Computing IT Engineering Application Development and Cyber Security. Based in Rockville MD were ISO 9001:2015 certified an SBA-designated Small Business and an MBE-certified firm by MDOT. We partner with over 100 clients to create scalable innovative solutions that drive success.What Youll Do
- 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 and present them to technical & business leadership.
- U.S. work authorization and ability to commute to NYC area 3 week.
- 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.
- Base Salary: FTE: 135K-140K or $90-$100 C2C/1099
- FTE Benefits: 100 % employer-paid medical / dental / vision 401(k) 5 % match ESPP
- FTE Training: $3 k annual cert stipend paid time for labs & conferences (Cisco Live Palo Alto Ignite)
Required Experience:
Senior IC
Employment Type
Full-Time
Key Skills
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