Sr. Network Engineer

Job Description

Job Description

Active Secret Clearance | Cisco & F5 | Hybrid Enterprise Architecture

Clearance Requirement: Active U.S. Government Secret Clearance (U.S. Citizenship Required)

If you are an experienced Engineer looking to step beyond siloed network administration, this role offers to contribute to the design, build, configure, and manage an enterprise hybrid ecosystem. TITANONEZERO is assisting clients in the design, security, and modernization of a complex infrastructure stack spanning core Cisco systems, F5 application delivery, Infoblox DDI, and edge-native Cloudflare Zero Trust solutions.

We offer an environment defined by technical autonomy, direct mentorship impact, and direct exposure to cutting-edge cloud and defense technologies.

As a Senior Network Engineer , you will serve as a primary technical authority across our mission-critical enterprise and government networks. You will drive high-availability routing, application traffic delivery, DNS/IPAM architecture, and next-generation perimeter security across on-premises, cloud, and hybrid environments.

Technical Domain Ownership - expert level experience in at least one of the following (multiple preferred):

• Core Cisco Infrastructure: Design, deploy, and optimize complex LAN/WAN/WLAN architectures utilizing Cisco Catalyst, Nexus, ISR/ASR, Meraki, Cisco ISE, and Secure Firewall/Firepower platforms. Drive BGP, OSPF, EIGRP, and advanced campus/data center routing.
• F5 Application Delivery & Security: Architect and manage high-availability F5 BIG-IP platforms (LTM, GTM/DNS, Advanced WAF/ASM, APM). Write custom iRules, optimize SSL/TLS offloading, manage global load balancing, and secure identity-based application access.
• Infoblox DDI Architecture: Lead enterprise DNS, DHCP, and IP Address Management (IPAM) across Infoblox Grid infrastructure. Enforce DNSSEC, Response Policy Zones (RPZ), and threat protection while driving DDI automation via Python and Ansible.
• Cloudflare & Edge Zero Trust: Implement cutting-edge Cloudflare Zero Trust architectures (Access, Gateway, WARP, Tunnel), Magic WAN/Transit, and edge WAF/DDoS protection. Modernize secure connectivity across hybrid and cloud ecosystems.
• Cybersecurity & Compliance: Enforce federal security baselines (DISA STIGs, NIST, RMF) and actively drive vulnerability remediation, system hardening, and automated compliance tracking.

What You Bring to the Team

• Clearance: Active U.S. Government Secret clearance (U.S. Citizenship required).
• Experience: 5+ years of hands-on enterprise network engineering, with demonstrated multi-vendor expertise across Cisco routing/switching, F5 BIG-IP, Infoblox NIOS, and cloud-delivered security platforms (Cloudflare or similar).
• Core Certifications: CCNA required (CCNP, CCIE, or CompTIA Security+ highly preferred).
• Technical Mastery:
• • Deep understanding of TCP/IP, BGP, OSPF, IPsec, GRE, TLS/SSL, and DNSSEC.
  • Deep experience analyzing complex traffic flows using Wireshark, tcpdump, and native CLI diagnostic utilities.
  • Proven track record building high-availability, failover-ready enterprise environments.
• Mindset: A proactive problem-solver driven to streamline operations through automation (APIs, Python, Ansible) and mentor junior technical staff.

Preferred Experience

• Background supporting Department of Defense (DoD) or classified intelligence networks.
• Hands-on experience with Cisco SD-WAN, Cisco ACI, or Cisco DNA/Catalyst Center.
• Experience deploying Infrastructure-as-Code (IaC) or orchestrating network changes through REST APIs.

What We Offer

• Competitive base salary tailored for senior cleared talent.
• Comprehensive health, dental, and vision coverage.
• 401(k) matching and generous paid time off (PTO).
• Dedicated continuous learning budget and support for advanced certifications (CCNP/CCIE, Cloud, DevSecOps).

\nCompany Description

Working for TITANONEZERO (titanonezero.com) offers a unique career environment for software engineers, IT specialists, and defense tech professionals. As an SBA 8(a)-certified technology firm based in Northern Virginia, TITANONEZERO blends small-business agility with high-impact, mission-critical work. 1. High-Impact Mission & Meaningful WorkFederal & Defense Integration: TITANONEZERO designs, builds, and deploys advanced systems directly serving complex government and enterprise challenges. Cutting-Edge Tech Hybrid: Rather than sticking to rigid legacy platforms, they leverage a mix of commercial off-the-shelf (COTS) components and custom in-house software engineering to solve high-stakes problems. 2. Growth Environment & Small-Team VisibilityDirect Mentorship & Ownership: As a tight-knit small business, you won't be just a number in a 5,000-person call center. The company actively prioritizes staying ahead of emerging technologies. You get room to learn, iterate, and apply modern software architectures, cloud environments (AWS/Azure), and AI/ML integrations.

Company Description

Working for TITANONEZERO (titanonezero.com) offers a unique career environment for software engineers, IT specialists, and defense tech professionals. As an SBA 8(a)-certified technology firm based in Northern Virginia, TITANONEZERO blends small-business agility with high-impact, mission-critical work. 1. High-Impact Mission & Meaningful WorkFederal & Defense Integration: TITANONEZERO designs, builds, and deploys advanced systems directly serving complex government and enterprise challenges. Cutting-Edge Tech Hybrid: Rather than sticking to rigid legacy platforms, they leverage a mix of commercial off-the-shelf (COTS) components and custom in-house software engineering to solve high-stakes problems. 2. Growth Environment & Small-Team VisibilityDirect Mentorship & Ownership: As a tight-knit small business, you won't be just a number in a 5,000-person call center. The company actively prioritizes staying ahead of emerging technologies. You get room to learn, iterate, and apply modern software architectures, cloud environments (AWS/Azure), and AI/ML integrations.