Senior IP Network Expert responsible for designing, securing, and evolving a custom-built IP network infrastructure

We are seeking a Senior IP Network Expert.This role requires a highly experienced qualified with strong IP networking expertise and experience in cloud-based security technologies, particularly firewalling. This position is ideal for someone who is hands-on, team-oriented, humble, and willing to contribute at all levels, from architecture and design to operational and administrative tasks. Our network environment is unique: it is not an off-the-shelf solution. It has been internally built and integrated over time. The right candidate must be open-minded and willing to learn and understand this custom architecture before proposing improvements.

Key Responsibilities

- Provide senior-level expertise in IP network architecture and operations
- Design, maintain, and optimize IP network infrastructure
- Support cloud-based networking and firewall/security technologies
- Analyze and understand a custom-built network environment
- Contribute ideas and improvements while respecting existing architecture
- Perform hands-on operational and administrative tasks as needed
- Collaborate with cross-functional teams to ensure reliability, security, and performance

Must-Haves

- 10 years of experience in IP networking (senior-level experience)
- Strong understanding of core networking principles (routing, switching, TCP/IP fundamentals)
- Experience with cloud-based networking technologies
- Experience with firewalling and network security solutions
- Ability and willingness to perform both high-level and hands-on technical work
- Strong analytical and problem-solving skills

Nice-to-Haves

- Experience working in highly customized or internally built network environments
- Experience contributing to network architecture evolution or transformation initiatives
- Exposure to hybrid or cloud-integrated network infrastructure





Position Overview

We are seeking a Senior IP Network Expert.This role requires a highly experienced professional with strong IP networking expertise and experience in cloud-based security technologies, particularly firewalling. This position is ideal for someone who is hands-on, team-oriented, humble, and willing to contribute at all levels, from architecture and design to operational and administrative tasks. Our network environment is unique: it is not an off-the-shelf solution. It has been internally built and integrated over time. The right candidate must be open-minded and willing to learn and understand this custom architecture before proposing improvements.

Key Responsibilities

- Provide senior-level expertise in IP network architecture and operations
- Design, maintain, and optimize IP network infrastructure
- Support cloud-based networking and firewall/security technologies
- Analyze and understand a custom-built network environment
- Contribute ideas and improvements while respecting existing architecture
- Perform hands-on operational and administrative tasks as needed
- Collaborate with cross-functional teams to ensure reliability, security, and performance

Must-Haves

- 10 years of experience in IP networking (senior-level experience)
- Strong understanding of core networking principles (routing, switching, TCP/IP fundamentals)
- Experience with cloud-based networking technologies
- Experience with firewalling and network security solutions
- Ability and willingness to perform both high-level and hands-on technical work
- Strong analytical and problem-solving skills

Nice-to-Haves

- Experience working in highly customized or internally built network environments
- Experience contributing to network architecture evolution or transformation initiatives
- Exposure to hybrid or cloud-integrated network infrastructure

Disclaimer:

AI may be used in evaluating candidates.

This posting is for an existing vacancy.

#J-18808-Ljbffr

📌 Senior IP Network Expert responsible for designing, securing, and evolving a custom-built IP network infrastructure (Toronto)
🏢 S.I. Systems
📍 Toronto