Senior Network Engineer/Architect

Infojini Inc; Philadelphia (Philadelphia County); On-site; USD 100,000 - 130,000; Full time

Job summary

A leading IT solutions provider in Philadelphia is seeking a Senior Network Engineer/Architect to design and support mission-critical global network infrastructure. Candidates should have 10+ years of network engineering experience, strong skills in Juniper and Palo Alto technologies, and the ability to lead complex projects. This role offers a competitive compensation package and extends over 6+ months with potential for extension.

Qualifications

• 10+ years of progressive experience in network engineering.
• At least 3 years in a Network Architect or Senior Lead role.
• Hands-on expertise with Juniper Junos OS, MPLS networks, and Palo Alto Networks firewalls.

Responsibilities

• Architect, plan, and deploy scalable and secure WAN, LAN, and Data Center networks.
• Develop and maintain the MPLS core network architecture.
• Design and implement complex BGP routing policies.
• Lead the network components of strategic projects.
• Design and fine-tune QoS policies.
• Ensure reliable VoIP service delivery.
• Conduct network capacity planning and traffic analysis.

Skills

Network Engineering

Juniper Technologies

Palo Alto Networks

BGP Knowledge

MPLS Expertise

VoIP

Traffic Analysis

Tools

Juniper SRX

Palo Alto Next-Generation Firewalls

Wireshark

Job description

Job Title: Senior Network Engineer/Architect

Location: Philadelphia, PA (Fully onsite work)

Duration: 6+ Months (with possible extension)

Position Overview / Statement of Work

The Senior Network Engineer/Architect plays a critical leadership role in designing, implementing, and providing advanced support for the organization’s mission‑critical global network infrastructure. This position requires deep, hands‑on expertise with Juniper and Palo Alto Networks technologies, with a strong focus on complex service provider and large enterprise network environments. Core technical domains include BGP, MPLS, Quality of Service (QoS), and the reliable transport of services such as VoIP and high‑volume IP Video Surveillance (IPVS).

The ideal candidate will be a technical leader who seamlessly bridges architectural vision with operational execution.

Work Activities

• Architect, plan, and deploy highly available, scalable, and secure WAN, LAN, and Data Center networks using Juniper (e.g., MX Routers, EX/QFX Switches) and Palo Alto Networks firewalls.
• Develop and maintain the MPLS core network architecture, including L2/L3 VPNs, Traffic Engineering (TE), and LDP/Rsvp.
• Design and implement complex BGP routing policies for multi‑homed internet connectivity, inter‑AS communication, and global route optimization.
• Lead the network components of strategic projects, ensuring alignment with business objectives, security standards, and industry best practices.
• Design, implement, and fine‑tune QoS policies (e.g., queuing, policing, shaping, classification) to ensure optimal performance for critical services.
• Ensure reliable VoIP service delivery, including configuration and management of supporting infrastructure such as SBCs and gateways.
• Architect, plan, and support the IP Video Surveillance (IPVS) network infrastructure, including camera‑to‑VMS communication and storage networking.
• Conduct network capacity planning and traffic analysis to forecast bandwidth requirements for high‑resolution, continuous recording IP cameras (e.g., H.264/H.265 streams).
• Design and manage VLAN segmentation and network zoning strategies for IPVS infrastructure, ensuring proper PoE/PoE+ power budgets on supporting switches.
• Configure and manage all features on Juniper SRX and Palo Alto Networks Next‑Generation Firewalls (NGFWs), including Security Policies, NAT, VPNs, User‑ID, and Application‑ID.
• Enforce robust network security policies across all segmented networks, including implementation of 802.1x authentication for cameras and other endpoints.
• Provide Tier 3/4 escalation support for complex network incidents and performance issues, ensuring rapid resolution and detailed root‑cause analysis.
• Utilize network monitoring tools and packet capture analysis (e.g., Wireshark) to diagnose and resolve advanced network, voice, and video stream issues.

Required Skills and Experience

• 10+ years of progressive experience in network engineering, including at least 3 years in a Network Architect or Senior Lead role.
• Deep hands‑on expertise with Juniper Junos OS across routers (e.g., MX Series), switches (e.g., EX/QFX Series), and SRX firewalls.
• Expert‑level knowledge of Border Gateway Protocol (BGP), including path manipulation, route filtering, and peering.
• Extensive experience designing and operating Multi‑Protocol Label Switching (MPLS) networks, including LDP, RSVP‑TE, and L2/L3 VPNs.
• Proven expertise with Palo Alto Networks firewalls, including Panorama management, App‑ID, Content‑ID, and WildFire integration.
• Strong, verifiable experience designing and troubleshooting networks supporting high‑volume, real‑time traffic, including QoS for VoIP and IP Video.