Sr. Network Engineer
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:
Senior network Engineer
Location: Remote
Employment Type: Full-Time
Timing: 6:00 to 3:00 PST (Pacific Time)
We are looking for an experienced Senior Network & Security Engineer to join our global network infrastructure team. This role manages network operations and security for a cloud service provider with five data centers in the United States. It supports multi-tenant cloud environments, including firewalls, VPNs, and secure connectivity between cloud platforms and customer on‑prem networks.
What You’ll Do
Firewall and Security Management
- Deploy and manage multi-tenant firewalls using Cisco ASA, Cisco FTD, and Fortinet
- Operate large virtual firewall environments, including 200+ Cisco ASAv instances
- Design, configure, and troubleshoot IPSec Site‑to‑Site and Remote Access VPNs
- Support secure VPN connectivity for customers between cloud and on‑prem systems
- Configure NAT, access control lists (ACLs), security rules, and network segmentation
Data Center Network Operations
- Manage daily network operations across multiple data centers
- Operate Layer 2 and Layer 3 networks with high‑availability designs
- Manage core and access switching using Cisco Nexus 9000 and vPC
- Maintain inter‑data center connectivity using MP‑BGP and MPLS L2/L3 VPNs
- Manage multiple 10G+ internet links with BGP peering across different ISPs
- Support and maintain Cisco ASR, Nexus, and Catalyst platforms
- Troubleshoot packet loss, latency, routing, VPN, and L2/L3 issues
- Perform system upgrades, patching, and lifecycle management
- Work with ISPs and MPLS providers for connectivity issues and escalations
What You Bring
- 10+ years of hands-on experience in cloud, enterprise or service provider networks.
- Deep experience with firewalls: Cisco ASA, Firepower/FTD, Fortinet FortiGate.
- Experience with high-end Cisco platforms (ASR, Nexus 9000, Catalyst).
- Strong knowledge of routing & switching fundamentals and advanced protocols: BGP, OSPF, EIGRP, STP, VLANs, MPLS services.
- Strong communication and collaboration skills, especially with global teams
Education & Certifications (Preferred)
- Degree in Computer Science, Engineering, or related field
Why Join Us?
- Work with cutting-edge enterprise and cloud technologies.
- Collaborate with global teams and diverse environments.
- Contribute to high-impact projects with significant technical depth.