Network Security engineer

We are seeking an experienced  Network Security Engineer  to support and enhance the cybersecurity posture of a leading energy-sector organization based in Calgary. The successful candidate will be responsible for designing, implementing, monitoring, and maintaining secure network infrastructure across corporate and operational technology (OT) environments. This role requires strong expertise in network security technologies, incident response, and regulatory compliance within critical infrastructure environments.

Key Responsibilities

Design, implement, and maintain secure network architectures for enterprise and industrial environments.

Configure, manage, and optimize firewalls, VPNs, IDS/IPS, web security gateways, and network access control solutions.

Monitor network security events and investigate potential threats, vulnerabilities, and incidents.

Conduct network security assessments, risk analyses, and remediation activities.

Collaborate with infrastructure, cloud, and operations teams to implement security best practices.

Support security projects involving network segmentation, Zero Trust initiatives, and secure remote access solutions.

Perform firewall rule reviews, policy optimization, and change management activities.

Develop and maintain network security documentation, standards, and procedures.

Assist with incident response activities, root cause analysis, and post-incident reporting.

Ensure compliance with industry regulations, cybersecurity frameworks, and corporate security standards.

Participate in security audits and support remediation efforts.

Provide technical guidance and mentorship to junior team members as needed.

Required Qualifications

Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Engineering, or related discipline.

5+ years of experience in network security engineering or cybersecurity infrastructure roles.

Strong hands-on experience with enterprise firewall technologies such as:

Fortinet Forti Gate

Check Point

Experience with :

IDS/IPS technologies

VPN solutions

Network Access Control (NAC)

Secure Web Gateways

DNS and email security solutions

Strong understanding of TCP/IP, routing, switching, VLANs, BGP, OSPF, and network segmentation.

Experience supporting cloud security environments (Azure and/or AWS).

Familiarity with SIEM platforms such as Splunk, Microsoft Sentinel, or QRadar.

Experience performing vulnerability assessments and remediation planning.

Knowledge of cybersecurity frameworks including NIST CSF, CIS Controls, and ISO 27001.

Preferred Qualifications

Experience in the Energy, Utilities, Oil & Gas, or Critical Infrastructure sectors.

Exposure to Operational Technology (OT), Industrial Control Systems (ICS), and SCADA environments.

Relevant certifications such as:

CISSP

CCNP Security

PCNSE

GIAC (GSEC, GCIA, GCIH)

CISM

Security+

Experience with Zero Trust architectures and micro-segmentation initiatives.

Knowledge of regulatory requirements applicable to energy organizations.

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