What are the responsibilities and job description for the Senior Network Engineer position at Lumiere Systems?
Applicants must be authorized to work in the United States on a full-time basis without the need for current or future visa sponsorship.
No third-party agencies, recruiters, or staffing firms will be considered for this position.
Overview
We are seeking a highly experienced Senior Network Engineer to design, implement, and manage a secure, scalable, and high-performing enterprise network infrastructure. This role will focus on Layer 3 and Layer 2 networking, advanced firewall management, and security operations, leveraging Palo Alto Networks and Cisco Meraki technologies.
The ideal candidate will bring deep expertise in network security architecture, centralized management, and log analytics, ensuring resiliency, visibility, and compliance across the enterprise environment. You will be instrumental in ensuring the organization's network infrastructure is secure, reliable, and future-ready.
Key Responsibilities
Network Architecture & Operations
No third-party agencies, recruiters, or staffing firms will be considered for this position.
Overview
We are seeking a highly experienced Senior Network Engineer to design, implement, and manage a secure, scalable, and high-performing enterprise network infrastructure. This role will focus on Layer 3 and Layer 2 networking, advanced firewall management, and security operations, leveraging Palo Alto Networks and Cisco Meraki technologies.
The ideal candidate will bring deep expertise in network security architecture, centralized management, and log analytics, ensuring resiliency, visibility, and compliance across the enterprise environment. You will be instrumental in ensuring the organization's network infrastructure is secure, reliable, and future-ready.
Key Responsibilities
Network Architecture & Operations
- Design, deploy, and maintain enterprise network infrastructure:
- Layer 3 routing and security using Palo Alto firewalls
- Layer 2 switching and access networks using Cisco Meraki
- Ensure high availability, scalability, and performance of network services.
- Manage routing protocols, VLAN segmentation, NAT, VPNs, and traffic flows across distributed environments.
- Troubleshoot complex network issues across LAN, WAN, and cloud environments.
- Configure and manage Palo Alto Networks firewalls for:
- Policy enforcement
- Threat prevention
- Application and user-based controls
- Administer and optimize Panorama centralized management for:
- Policy standardization
- Configuration consistency
- Device lifecycle management
- Implement and maintain network segmentation and Zero Trust security principles.
- Manage and analyze logs using:
- Cortex Data Lake (CDL)
- Sumo Logic for aggregation, monitoring, and alerting
- Develop dashboards, alerts, and reports for:
- Network performance
- Security incidents
- Compliance requirements
- Perform proactive monitoring and incident response to minimize downtime and security risk.
- Support hybrid and cloud connectivity models, including:
- VPNs and secure tunnels
- SaaS and cloud service integrations
- Collaborate with security and identity teams to integrate network controls with IAM and Zero Trust frameworks.
- Identify opportunities to automate network provisioning, configuration management, and monitoring.
- Utilize APIs, scripting (Python, Bash, or PowerShell), and infrastructure-as-code approaches where applicable.
- Continuously improve network performance, reliability, and operational efficiency.
- Partner with cross-functional teams including security, cloud, DevOps, and infrastructure teams.
- Provide technical leadership and mentorship to junior engineers.
- Act as an escalation point for complex network and security incidents.
- Maintain accurate network diagrams, configurations, and technical documentation.
- Develop and maintain standard operating procedures (SOPs) and runbooks.
- Support audits and ensure adherence to security and compliance standards.
- 7–10 years of experience in enterprise network engineering
- Deep expertise in:
- Palo Alto Networks firewalls (L3 operations)
- Cisco Meraki switching (L2 environments)
- Strong hands-on experience with:
- Panorama centralized management
- Cortex Data Lake and Sumo Logic
- Solid understanding of:
- TCP/IP, routing protocols (BGP, OSPF), VLANs, NAT
- VPN technologies (IPSec, SSL VPN)
- Network segmentation and security best practices
- Experience with Zero Trust architectures
- Familiarity with cloud networking (Azure, AWS, or GCP)
- Scripting/automation skills (Python, PowerShell, Bash)
- Experience with SD-WAN or secure access service edge (SASE)
- Relevant certifications:
- Palo Alto (PCNSE, PCNSA)
- Cisco (CCNP, CCIE)
- Security certifications (e.g., CISSP, Security )