Tourmaline Oil Corp. is a Canadian senior natural gas exploration and production company focused on long-
term growth through an active exploration, development, production, and acquisition program in the Western

Canadian Sedimentary Basin.

We are currently seeking an Operational Technology Network Specialist (18-Month Contract**)** to join our team

in Calgary.

This role is part of the Operational Technology (OT) team and is responsible for strengthening and securing

OT environments to support safe and reliable operations. Reporting to the Team Lead, Operational

Technology Security, and working under the technical direction of the OT Network Architect, the successful

candidate will collaborate closely with OT Security, Infrastructure, Automation, SCADA, and Field Operations

teams.

This position balances day-to-day OT network support with network design, engineering, and continuous

improvement initiatives.

Key Responsibilities

• OT Network Operations & Support:

o Operate and maintain OT network infrastructure including switches, firewalls, routers, and

site connectivity

o Monitor, troubleshoot, and resolve OT network incidents to minimize operational impact

o Execute approved network changes in accordance with change management and safety

requirements

o Maintain OT network security controls aligned with internal standards and risk management

practices

o Support firewall rule changes, access control updates, and network segmentation activities

o Maintain accurate network documentation, diagrams, and configuration records

o Support routing and switching across complex, multi-site OT environments including plants,

field locations, and data centers

o Travel to facilities as required to support incidents, integrations, and installations

• OT Network Engineering & Improvement:

o Design, implement, and support industrial network architectures aligned with the Purdue

Model

o Contribute to network improvement initiatives and infrastructure modernization projects

o Deploy and manage next-generation firewall platforms such as Palo Alto Networks and

Fortinet

o Contribute to network segmentation, vulnerability remediation, and cybersecurity

improvement initiatives

Qualifications and Skills

o Degree or diploma in engineering, computer science, engineering technology, or equivalent

experience from an accredited post-secondary institution

o 5+ years of experience designing, implementing, and supporting network solutions in

industrial or operational environments

o Hands-on experience supporting and troubleshooting production OT networks across

industrial control systems, facilities, and data center environments

o Strong networking fundamentals including TCP/IP, VLANs, routing, and firewalls

o Experience with next-generation firewall platforms such as Palo Alto Networks and Fortinet

o Working knowledge of design and configuration related to Cambium ethernet microwave

radios, satellite Internet (Starlink), and LTE cellular

o Strong understanding of OT cybersecurity concepts including network segmentation, the

Purdue Model, and network access control

o Familiarity with environments aligned to IEC 62443 and NIST CSF

o Experience working within structured change management and safety-critical environments
o Field experience is beneficial

o Participation in rotational on-call support for OT infrastructure

o Ability to balance operational support priorities with longer-term engineering and

improvement initiatives

o Strong written and verbal communication skills with the ability to collaborate across

technical and operational teams

o Working knowledge of vendor support portals and procurement processes