Network Engineer

Job summary

Lead and execute network infrastructure upgrades, including the migration of switches, routers, and firewalls within a Windows-based environment. Ensure security compliance, optimal performance, and minimal service disruption during deployment.

Job details

Job Description On behalf of our client, Affinity is seeking a Network Engi neer based in Cambridge, Ontario for a 12 month contract. We are seeking a skilled Network Engineer to lead and execute network upgrade projects within a Windows-based environment. The ideal candidate will be responsible for assessing, planning, and implementing network infrastructure upgrades, ensuring minimal downtime, security compliance, and optimal performance. Key Responsibilities Plan, design, and implement network upgrades, including hardware, software, and security enhancements. Upgrade and migrate network infrastructure components such as switches, routers, firewalls, and wireless systems. Ensure seamless integration with existing Windows-based servers and enterprise systems. Perform network assessments to identify areas for improvement and optimization. Work with cross-functional IT teams to ensure smooth deployment and minimal service disruptions. Implement security best practices to protect against vulnerabilities during and after the upgrade. Provide troubleshooting and support for network issues post-upgrade. Document upgrade procedures, configurations, and best practices. Requirements 7+ years of experience in network engineering and infrastructure upgrades. Strong knowledge of network protocols (TCP/IP, DNS, DHCP, VLANs, VPNs). Experience with Windows Server environments, Active Directory, and Group Policy. Hands-on experience with Cisco, Juniper, or other enterprise-grade networking equipment. Understanding of firewalls, IDS/IPS, and network security principles. Experience with cloud networking (Azure, AWS, or hybrid environments) is a plus. Strong problem-solving and troubleshooting skills. Certifications such as CCNA, CCNP, or equivalent are preferred. Affinity Earn Know someone who’s great for this, or any of our open roles? Earn up to $4,000/year for each successful referral through Affinity Earn. You can also earn up to $50,000 for helping us find new clients. Learn about our referral program at https://affinity-group.ca/earn/ or browse our jobs & follow us at https://www.linkedin.com/company/affinity-staffing/jobs/ About Affinity Affinity Group is a technology and business consulting and services company. We believe in creating long term relationships between clients and consultants that foster a mutually beneficial partnership. Affinity is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment is decided on the basis of qualifications, merit and business need. For more information on Affinity, please visit www.affinity-group.ca Job Number: 11891

What you’ll do

Lead and execute network infrastructure upgrades, including the migration of switches, routers, and firewalls within a Windows-based environment. Ensure security compliance, optimal performance, and minimal service disruption during deployment.

Requirements

Requires over 7 years of experience in network engineering with strong knowledge of network protocols and enterprise-grade equipment like Cisco or Juniper. Preferred candidates hold certifications such as CCNA or CCNP and have experience with cloud networking.

Listed skills

• DHCP · Preferred
• Active Directory · Preferred
• DNS · Preferred
• VLANs · Preferred
• TCP/IP · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Network Engineering
• Network Infrastructure Upgrades
• TCP/IP
• DNS
• DHCP
• VLANs
• VPNs
• Windows Server
• Active Directory
• Group Policy
• Cisco
• Juniper
• Firewalls
• IDS/IPS
• Cloud Networking
• Network Security

Job areas

• Technology
• Engineering
• Consulting
• Software