Senior software engineer Jobs in Waterloo, ON

🌐 We’re looking for a technically skilled Senior Network Engineer to design, secure, and optimize the networks that keep modern businesses running smoothly.

Our client is a trusted IT solutions partner, helping organizations navigate digital transformation with a focus on reliability, security, and performance. They’re seeking a hands-on engineer who can architect robust network environments, troubleshoot complex challenges, and ensure seamless connectivity across on-premise and cloud platforms.

In this role, you’ll play a pivotal part in building resilient infrastructures that enable clients to scale confidently while maintaining high standards of uptime and security.

💻 Who You Are

• You’re a hands-on network engineer who thrives on solving connectivity challenges and optimizing infrastructure.
• You bring structure, technical expertise, and reliability to critical environments.
• You’re proactive, detail-oriented, and comfortable collaborating across teams and clients.
• You care deeply about performance, data security, and operational excellence.

📍 Work Type

• Mostly Remote - may require occasional in-office or client site visits (client office locations are in Windsor, ON and London, ON)
• Vacancy Type: This role reflects an existing vacancy

Requirements

🎯What You’ll Do

• Design, implement, and optimize enterprise network infrastructure across Fortinet, Cisco, and Cisco Meraki environments
• Serve as a senior technical advisor to MSP clients, providing guidance on network architecture, security, and infrastructure strategy
• Lead Azure networking initiatives, including VNets, VPN Gateway, NSGs, and hybrid connectivity
• Plan and execute network implementations, migrations, upgrades, and optimization projects across multiple client environments
• Troubleshoot complex networking and infrastructure issues and provide expert-level technical resolution
• Work directly with clients to understand their technical requirements and translate them into practical, scalable solutions
• Support pre-sales activities, including technical discovery, solution design, scoping, and client presentations
• Develop network designs, implementation plans, technical documentation, and best-practice standards
• Collaborate with internal engineering teams, vendors, leadership, and client stakeholders to deliver successful outcomes
• Provide post-deployment support and ongoing technical guidance to ensure client environments remain secure, stable, and optimized
• Participate in scheduled maintenance, upgrades, and after-hours implementation windows when required
• Share knowledge and mentor other engineers while contributing to continuous improvement across the team

⭐ What We’re Looking For

Must-Haves

• 5+ years of experience in network engineering, infrastructure engineering, or a similar technical role
• Previous experience working within an MSP, managed services, or IT consulting environment
• CCNA or CCNP certification required (additional Cisco certifications would be an asset)
• Strong hands-on expertise with Cisco networking, Fortinet, and Cisco Meraki
• Experience designing, implementing, and supporting enterprise network environments across multiple clients
• Strong understanding of Azure networking, including VNets, VPN Gateway, NSGs, and hybrid connectivity
• Proven ability to troubleshoot complex networking and infrastructure issues independently
• Strong client-facing experience with the ability to act as a trusted technical advisor
• Excellent communication skills, with the ability to explain complex technical concepts to both technical and non-technical audiences
• Experience developing technical documentation, network designs, implementation procedures, and best practices
• Strong organizational and prioritization skills, with the ability to manage multiple client environments and competing priorities
• Self-directed and comfortable working in a remote-first, client-facing environment

Nice-to-Haves

• Fortinet certifications
• Microsoft Azure networking certifications or hands-on experience designing Azure network architectures
• Previous involvement in pre-sales engineering, solution architecture, or technical scoping
• Experience mentoring junior engineers or providing technical leadership within an MSP environment

🔥 What Makes This Role Exciting?

• Technical Influence – You'll play a key role in shaping enterprise networking environments and guiding strategic decisions
• Variety of Work – From architecture discussions and client consulting to hands-on implementations, no two weeks look the same
• Remote-First Flexibility – Enjoy the autonomy of working remotely while remaining connected to a supportive and experienced team
• Meaningful Client Partnerships – Build trusted relationships and become the go-to expert clients rely on

Benefits

• Base Salary: $100,000 - $120,000
• Paid Vacation and Personal Days
• Comprehensive Health Benefits & RRSP Matching
• Professional Development & Certification Opportunities
  

📩 Ready to Build the Future of Infrastructure? Apply Now!

At STACK IT Recruitment, we connect top talent with standout opportunities. If you meet at least 70% of the qualifications, we encourage you to apply, we'd love to chat!

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AI Use Disclosure:
STACK IT uses AI-enhanced tools to support initial candidate screening and interview note analysis. All assessments and hiring decisions remain human-led.