We are currently seeking a Senior Network Infrastructure Specialist to join a premier, technology-driven enterprise. In this role, you will be instrumental in operating, optimizing, and evolving a high-availability corporate network infrastructure. Working alongside a collaborative engineering team, you will bridge traditional data center environments with modern enterprise architectures, driving network reliability, security, and continuous modernization during a major corporate migration.
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Advantages
Flexible Work Model: Modern hybrid setup (2 days in-office, 3 days remote) across major metropolitan hubs (Montreal, Ottawa, or Toronto).
Career Evolution: High-impact initial 12-month contract with a strong likelihood of extension or conversion to a permanent role.
Modernization Exposure: Direct involvement in large-scale transformation initiatives shifting legacy infrastructure toward cutting-edge cloud networks.
Competitive On-Call Compensation: Structured, predictable rotational schedule supported by top-tier tooling (PagerDuty).
Responsibilities
Maintain, optimize, and troubleshoot complex enterprise network environments encompassing LAN/WAN, Next-Gen Firewalls (Palo Alto), DDoS protection, and Cisco ACI data center architectures.
Deliver high-level technical expertise in application delivery controllers (NetScaler) or enterprise wireless environments (Cisco Wi-Fi).
Oversee network performance, conduct proactive vulnerability management, and coordinate hardware/software patch solutions with key vendors.
Author, review, and execute technical change requests within a structured change management framework.
Craft precise architectural documentation, topology diagrams, and operational procedures to ensure service level agreements (SLAs) are met.
Act as an escalation lead for complex network incidents, taking ownership through root-cause analysis and problem resolution.
Participate in a shared 24/7 on-call rotational shift (1 week per month, Friday to Friday).
Qualifications
Experience: 5+ years of hands-on expertise in senior-level network engineering, architecture, and administration within mission-critical environments.
Core Technical Mastery: In-depth knowledge of Cisco data center fabrics (Cisco ACI) and core routing/switching protocols (BGP, EIGRP, MPLS, TCP/IP).
Specialized Expertise: Strong proficiency in either NetScaler Load Balancing (ADC) OR enterprise Cisco Wi-Fi infrastructure.
Security & Access Controls: Familiarity with Cisco ISE, Next-Gen Firewalls, and automated network deployment practices.
Mindset & Soft Skills: Highly methodical troubleshooter with exceptional communication skills, an adaptable mindset geared toward change, and the ability to thrive under pressure.
Certifications: CCNA or CCNP certification is highly desired (equivalent hands-on experience will be considered).
Education: Post-secondary diploma or degree in Network Engineering, Computer Science, or a related technology field.
Summary
LocationMontreal, QC / Ottawa, ON / Toronto, ON
Work ArrangementHybrid (2 Days In-Office / 3 Days Remote)
Duration12-Month Mandate (High potential for extension/permanency)
ScheduleFull-time (35 hrs/week) + On-Call Rotation (1 week/month)
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
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We are currently seeking a Senior Network Infrastructure Specialist to join a premier, technology-driven enterprise. In this role, you will be instrumental in operating, optimizing, and evolving a high-availability corporate network infrastructure. Working alongside a collaborative engineering team, you will bridge traditional data center environments with modern enterprise architectures, driving network reliability, security, and continuous modernization during a major corporate migration.
Advantages
Flexible Work Model: Modern hybrid setup (2 days in-office, 3 days remote) across major metropolitan hubs (Montreal, Ottawa, or Toronto).
Career Evolution: High-impact initial 12-month contract with a strong likelihood of extension or conversion to a permanent role.
Modernization Exposure: Direct involvement in large-scale transformation initiatives shifting legacy infrastructure toward cutting-edge cloud networks.
Competitive On-Call Compensation: Structured, predictable rotational schedule supported by top-tier tooling (PagerDuty).
Responsibilities
...
Maintain, optimize, and troubleshoot complex enterprise network environments encompassing LAN/WAN, Next-Gen Firewalls (Palo Alto), DDoS protection, and Cisco ACI data center architectures.
Deliver high-level technical expertise in application delivery controllers (NetScaler) or enterprise wireless environments (Cisco Wi-Fi).
Oversee network performance, conduct proactive vulnerability management, and coordinate hardware/software patch solutions with key vendors.
Author, review, and execute technical change requests within a structured change management framework.
Craft precise architectural documentation, topology diagrams, and operational procedures to ensure service level agreements (SLAs) are met.
Act as an escalation lead for complex network incidents, taking ownership through root-cause analysis and problem resolution.
Participate in a shared 24/7 on-call rotational shift (1 week per month, Friday to Friday).
Qualifications
Experience: 5+ years of hands-on expertise in senior-level network engineering, architecture, and administration within mission-critical environments.
Core Technical Mastery: In-depth knowledge of Cisco data center fabrics (Cisco ACI) and core routing/switching protocols (BGP, EIGRP, MPLS, TCP/IP).
Specialized Expertise: Strong proficiency in either NetScaler Load Balancing (ADC) OR enterprise Cisco Wi-Fi infrastructure.
Security & Access Controls: Familiarity with Cisco ISE, Next-Gen Firewalls, and automated network deployment practices.
Mindset & Soft Skills: Highly methodical troubleshooter with exceptional communication skills, an adaptable mindset geared toward change, and the ability to thrive under pressure.
Certifications: CCNA or CCNP certification is highly desired (equivalent hands-on experience will be considered).
Education: Post-secondary diploma or degree in Network Engineering, Computer Science, or a related technology field.
Summary
LocationMontreal, QC / Ottawa, ON / Toronto, ON
Work ArrangementHybrid (2 Days In-Office / 3 Days Remote)
Duration12-Month Mandate (High potential for extension/permanency)
ScheduleFull-time (35 hrs/week) + On-Call Rotation (1 week/month)
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
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