Constellation Harris—Sr Systems Support Engineer

Job description

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