Sr. Network Engineer

Xtium; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Xtium is seeking an experienced network engineer to design, deploy and support enterprise datacenter networks across on-premises, cloud, and hybrid environments.

You will work with Cisco Nexus 9000, ASR routers, and Fortinet/FortiGate firewalls, implementing VXLAN, BGP, MPLS and VPNs. Strong communication with global teams is essential. This role offers exposure to cutting-edge technologies and CCIE-level certification opportunities.

Qualifications

• 8+ years of hands-on networking experience in enterprise/service provider environments.
• Expertise with Cisco routing platforms (ASR, Nexus 9000, Catalyst).
• Deep firewall knowledge with Cisco ASA, Firepower/FTD, Fortinet FortiGate.

Responsibilities

• Datacenter infrastructure and networking.
• Provide Tier-2/Tier-3 operations support for incidents across on-premises, cloud, and hybrid environments.
• Design and troubleshoot VPNs, BGP routing, and multi-vendor firewall integrations.
• Coordinate with ISPs/MPLS providers and pursue continuous improvement.

Skills

Datacenter networking

Cisco Nexus 9000

vPC

VXLAN

Azure networking

IPSec VPNs

BGP

Routing & switching

Firewall expertise

Cisco ASR

Education

Degree in Engineering/CS

CCIE Routing & Switching

CCIE Security

Tools

Cisco ASR Routers

Cisco Nexus 9000

Fortinet FortiGate

Job description

The XTIUM global team is made up of a group of diverse and talented professionals who are all driven by the same goal: excellence and continuous improvement. We are all about embracing challenges, keeping the lines of communication open and working together. We take ownership of our work, focus on learning and growing and hold ourselves accountable to our colleagues and customers. Together, we strive to push boundaries, make an impact and inspire each other to reach our full potential.

Job Description:

What You Will Do

• Datacenter infrastructure and networking
• Work with modern datacenter technologies: Cisco Nexus 9000 , vPC , VXLAN , spine-leaf architectures.
• Provide Tier-2/Tier-3 operations support for complex incidents across on-premises, cloud, and hybrid environments.
• Work hands-on with Microsoft Azure networking : vWAN, VNets, VPN Gateways, NSGs, routing patterns, and connectivity design.
• Design and troubleshooting IPSec Site-to-Site and Remote Access VPNs across multi-vendor firewall solutions (Cisco, Fortinet, etc.).
• Architect and support large-scale routing environments, including BGP , ISP/MPLS integrations, and performance optimization.
• Deploy and manage enterprise infrastructure: Cisco ASR routers , Cisco Catalyst, Cisco Nexus, ASA/Firepower firewalls.
• Configure and support VLANs, OSPF, EIGRP, BGP, MPLS L2/L3 VPNs, NAT/PAT, ACLs , and advanced routing/security features.
• Perform upgrades, maintenance, patching, and lifecycle management across network/security platforms.
• Coordinate with ISP/MPLS providers and create escalation cases with Cisco, Fortinet, Microsoft, and others.
• Maintain compliance by following standardized change control, configuration policies, and operational best practices.

What You Bring

• 08+ years of hands-on experience in cloud, enterprise or service provider networks.
• Mastery of high-end Cisco platforms ( ASR , Nexus 9000, Catalyst).
• Deep experience with firewalls: Cisco ASA , Firepower/FTD, Fortinet FortiGate.
• Strong knowledge of routing & switching fundamentals and advanced protocols: BGP, OSPF, EIGRP, STP, VLANs, MPLS services.
• Experience building secure hybrid-cloud networks and troubleshooting large-scale, multi-layer issues.
• Strong communication and collaboration skills, especially with global teams.
• Experience with Cisco ACI will be preferred

What Qualifies You

• Strong interpersonal and communication skills, with the ability to collaborate effectively with international clients and multicultural teams.
• Extensive hands-on experience (8+ years) in enterprise and service-provider networking environments, covering design, deployment, and operations.
• Proficiency working with high-end Cisco routing platforms, including ASR series routers for large-scale and high-performance networks.
• Deep expertise with firewall technologies such as Cisco ASA, Cisco Firepower/FTD, and Fortinet FortiGate.
• Advanced experience with Cisco Nexus 9000 platforms, vPC, VXLAN, and modern datacenter network architectures.
• Strong command of core networking protocols and technologies: PAT/NAT, IPSec Site-to-Site VPN, Remote Access VPN, STP, EIGRP, OSPF, BGP, VLANs, ACLs, and MPLS services.
• Highly knowledgeable in routing, switching, and security best practices, with the ability to diagnose and resolve complex multi-layer networking issues.

Education & Certifications (Preferred)

• Degree in Engineering, Computer Science, or related field (experience can substitute).
• CCIE Routing & Switching , CCIE Security will be preferred.

Why Join Us?

• Work with cutting-edge enterprises and cloud technologies.
• Collaborate with global teams and diverse environments.
• Contribute to high-impact projects with significant technical depth.
  Remote