Sr Systems Support Engineer

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

Job summary

Remote Jobs in the United States seeks a Senior Network Engineer to configure, operate, and optimize routers, switches, firewalls, load balancers, and monitoring tools. You will own end-to-end network projects and mentor junior engineers.

The role requires extensive experience in core networking and security, hands-on multi-vendor firewall administration, and strong Azure/AWS networking knowledge. Hybrid cloud, incident response, and documentation duties form part of daily responsibilities.

Qualifications

• 6+ years of experience in core Networking and Security.
• Hands-on experience with multi-vendor firewalls (Checkpoint, Cisco ASA, Cisco Firepower, Fortinet, SonicWall, Palo Alto).
• Experience with security tools such as WAF, NIPS, Firewall Analyzer, and DDoS protection.
• Strong understanding of L3 routing protocols (OSPF, BGP).
• Experience with multi-vendor environments (Whitebox is a plus).
• Solid knowledge of networking technologies: TCP/IP, DNS, BGP, OSPF, EIGRP, MPLS VPNs, VXLAN, Multicast.
• Experience with DMVPN, IPSEC, and encryption standards.

Responsibilities

• Configure, maintain, and operate routers, switches, firewalls, load balancers, and monitoring tools.
• Monitor network infrastructure, respond to alerts, and maintain topology documentation.
• Mentor, coach, and share knowledge with junior team members.
• Serve as escalation point for complex incidents and requests.
• Handle routine network service requests, access provisioning, and documentation.
• Troubleshoot major incidents, lead outage bridges, and perform root cause analysis.
• Own end-to-end network infrastructure projects (design, implementation, testing, handover).
• Develop expertise in datacenter networking, firewalls, load balancing, or cloud networking.
• Collaborate with senior engineers on large-scale infrastructure projects.
• Design, deploy, configure, and troubleshoot Azure and AWS cloud networking solutions.

Skills

Core networking

Security operations

Multi-vendor firewalls

L3 routing protocols

Azure networking

Cloud networking

Python scripting

Network troubleshooting

Documentation

DMVPN/IPSEC

Education

Bachelor’s degree in Engineering

Tools

Check Point

Cisco ASA

Cisco Firepower

Fortinet

SonicWall

Palo Alto

Job description

Responsibilities

• Configures, maintains, and operates routers, switches, firewalls, load balancers, and monitoring tools
• Installs physical equipment, connects cabling, organizes communication racks, and powers devices per documentation
• Proactively monitors network infrastructure using monitoring tools, responds to alerts, and maintains updated topology documentation
• Mentors, coaches, and shares knowledge with junior team members
• Acts as an escalation point for complex incidents and requests
• Independently handles routine network service requests, access provisioning, and documentation
• Troubleshoots and resolves major incidents, leads outage bridges, and performs root cause analysis
• Owns end-to-end network infrastructure projects (design, implementation, testing, and handover)
• Develops subject matter expertise in domains such as datacenter networking, firewalls, load balancing, or cloud networking
• Collaborates with senior engineers on large-scale infrastructure projects
• Designs, deploys, configures, and troubleshoots Azure and AWS cloud networking solutions

Experience Required

• 6+ years of experience in core Networking and Security
• Strong experience in data security operations (administration, configuration, troubleshooting, and design)
• Hands‑on experience with multi‑vendor firewalls (Checkpoint, Cisco ASA, Cisco Firepower, Fortinet, SonicWall, Palo Alto)
• Experience with security tools such as WAF, NIPS, Firewall Analyzer, and DDoS protection
• Strong understanding of L3 routing protocols (OSPF, BGP)
• Experience with multi‑vendor environments (Whitebox is a plus)
• Solid knowledge of networking technologies: TCP/IP, DNS, BGP, OSPF, EIGRP, MPLS VPNs, VXLAN, Multicast
• Experience with DMVPN, IPSEC, and encryption standards

Azure Networking (Enhanced Requirement)

• Strong hands‑on experience in deployment, configuration, and troubleshooting of Microsoft Azure networking services, including:
• Virtual Networks (VNet), Subnets, IP Address Management
• Network Security Groups (NSG) and Azure Firewall policy configuration and troubleshooting
• Azure Load Balancer (L4) and Application Gateway (L7) setup, tuning, and issue resolution
• Azure Front Door and Web Application Firewall (WAF) configuration and debugging
• VPN Gateway (Site‑to‑Site, Point‑to‑Site) and ExpressRoute deployment and troubleshooting connectivity issues
• User Defined Routes (UDR) and Network Virtual Appliances (NVA) configuration and routing issue analysis
• Azure DNS, Traffic Manager, and Network Watcher for diagnostics and monitoring
• Strong experience in troubleshooting Azure network issues, including:
• Connectivity issues between VNets, subnets, and on‑prem environments
• Routing misconfigurations and asymmetric routing
• NSG/Firewall rule conflicts and traffic drops
• Load balancing and application gateway backend health issues
• VPN/ExpressRoute latency, packet drops, and tunnel failures
• Experience designing and implementing hybrid cloud connectivity (On‑prem to Azure)
• Strong understanding of Azure network security architecture and best practices
• Experience with high availability, failover, and disaster recovery design in Azure networking
• Hands‑on experience with Infrastructure as Code (IaC) using ARM templates, Bicep, or Terraform

Cloud & Automation Skills

• Knowledge of AWS networking and architectural principles
• Experience with network automation using Python, Shell scripting, YAML
• Familiarity with DevOps practices and CI/CD pipelines

Education & Certifications

• Bachelor’s degree in Engineering or related discipline (or equivalent experience)

Preferred certifications

• CCNA / CCNP
• Security+
• ITIL Foundation
• Microsoft Azure Fundamentals / Azure Network Engineer Associate

Key Skills

• Strong consulting and communication skills
• Ability to work with internal and external stakeholders
• Strong analytical and problem‑solving abilities