Network Security Engineer - Field & Cloud Infrastructure

NOV, Inc.$110K — $130K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science, IT, cybersecurity, network engineering, or a related field; equivalent experience may be considered.
  • 5-10 years in cybersecurity, systems engineering, or network engineering roles.
  • Strong grasp of networking fundamentals, including protocols and technologies like TCP/IP, DNS, DHCP, and firewalls.
  • Experience in vulnerability management, security monitoring, and alerting in IT/OT environments.
  • Ability to assess technical environments for security vulnerabilities and suggest viable remediation strategies. (e.g., remote accessibility)
  • Solid scripting skills using tools like Python, PowerShell, Bash, Ansible, or Terraform.

Responsibilities

  • Collaborate with network and engineering teams to assess configurations and document security risks.
  • Create practical mitigation strategies focusing on security without sacrificing usability and deployment simplicity.
  • Develop recovery plans to minimize operational disruptions during security incidents.
  • Engage with field personnel to understand operational constraints during site visits.
  • Design network architectures adhering to the Purdue Model principles for industrial security.
  • Support incident response efforts in OT cybersecurity and partake in forensic investigations.
  • Utilize various tools to troubleshoot and tackle real-world issues effectively.

Benefits

  • Dynamic work environment with opportunities for field visits to understand real-world applications.
  • Exposure to cutting-edge cybersecurity technologies and methodologies.
  • Collaborative culture that bridges between cybersecurity and operational teams.
  • Support for ongoing professional development with potential for certifications.
  • Engagement in innovative projects across diverse operational landscapes.
Full Job Description
Job Description

Network Security Engineer - Field and Cloud Infrastructure

The Network Security Engineer - Field and Cloud Infrastructure will be responsible for understanding the company's existing field, network, and remote connectivity landscape, identifying potential security gaps, and helping design and implement practical solutions to improve the security, reliability, and maintainability of deployed systems.

This role requires a practical, operations-focused approach to network security. Most deployments are remote sites where uptime is critical, and ease of use is a top priority. The candidate must be able to identify security gaps while also understanding that improvements must be practical, deployable, supportable, and minimally disruptive to site operations.

Responsibilities include but are not limited to the following:
  • Work closely with existing network, support, and engineering teams to evaluate current configurations, document risks, recommend improvements, and support implementation of security controls across field-hosted, cloud-connected, and enterprise network environments.
  • Define realistic mitigation paths that balance security, usability, field deployment simplicity, customer needs, and maximum system availability.
  • Develop containment strategies & recovery plans to minimize operational disruptions.
  • Shadow field and support personnel on occasional field visits to understand the procedural, environmental, and operational constraints.
  • Design secure industrial network architectures following Purdue Model principles.
  • Participate and Support OT cybersecurity incident response and forensic investigations.
  • Troubleshoot and resolve real-world issues using tools such as Python, PowerShell, Bash, Ansible, Terraform, or similar technologies.
  • Identify risks and translate findings into actionable remediation plans
  • Support risk assessments aligned with international (IEC 62443, ISO 27001, NIST CSF 2.0), regional (NOG-104, CIS), and internal standards.
  • Identify creative methods to support customer requirements like data sovereignty while maintaining remote patching of international systems.
  • Configure deployment and support technologies (Fortinet, Starlink, BeyondTrust) to maintain global standardization.
  • Leverage centralized tools (NinjaOne, Zabbix, SentinelOne) and collaborate with Systems Engineers to quantify risks and track adoption of improvements.
  • Contribute to cybersecurity documentation, SOPs, and standards
  • Support workflow and ticketing integration using tools such as Jira
  • Act as a bridge between cybersecurity and operational execution, translating security requirements into practical, scalable solutions

Required Qualifications
  • Bachelor's degree in computer science, information technology, cybersecurity, network engineering, engineering, or a related technical field; equivalent experience may be considered.
  • 5-10 years in cybersecurity, systems engineering, network engineering, or related roles
  • Strong understanding of networking fundamentals, including TCP/IP, routing, switching, DNS, DHCP, NAT, VLANs, firewalls, VPNs, and remote access technologies.
  • Experience deploying and maintaining vulnerability management, security monitoring, SIEM, centralized logging, configuration compliance, and alerting solutions within IT/OT environments to enhance security visibility, operational resilience, and risk reduction.
  • Experience with local and remote support of industrial OT networks, firewall policy management, segmentation, secure remote access, and troubleshooting.
  • Ability to evaluate technical environments, identify security gaps, and recommend practical remediation steps.
  • Experience with cybersecurity risk assessments for industrial systems.
  • Experience supporting products deployed in customer OT environments.
  • Experience writing scripts or automation using tools such as Python, PowerShell, Bash, Ansible, Terraform, or similar technologies.
  • Ability to communicate technical risks and recommendations clearly to both technical and non-technical stakeholders.
  • Strong documentation skills, including network diagrams, configuration standards, implementation procedures, and technical notes.
  • Ability to collaborate effectively with network, field support, cybersecurity, infrastructure, cloud, and application teams.
  • Experience with standards or frameworks such as NIST CSF 2.0, CIS Controls, ISO 27001, IEC 62443, or other cybersecurity best practices.

Preferred Qualifications
  • Experience supporting remote field networks, industrial environments, customer-connected systems, or distributed infrastructure.
  • Experience supporting offshore, drilling, marine, energy, or critical infrastructure environments.
  • Experience with cloud networking and security concepts in platforms such as Azure, AWS, or Google Cloud.
  • Familiarity with zero trust concepts, identity-based access, certificate-based authentication, privileged access management, and least-privilege design.
  • Relevant certifications such as CCNA, CCNP, Security+, CySA+, CISSP, GICSP, PCNSA, Fortinet NSE, or equivalent.
  • Experience working with


Responsibilities

Network Security Engineer - Field and Cloud Infrastructure

The Network Security Engineer - Field and Cloud Infrastructure will be responsible for understanding the company's existing field, network, and remote connectivity landscape, identifying potential security gaps, and helping design and implement practical solutions to improve the security, reliability, and maintainability of deployed systems.

This role requires a practical, operations-focused approach to network security. Most deployments are remote sites where uptime is critical, and ease of use is a top priority. The candidate must be able to identify security gaps while also understanding that improvements must be practical, deployable, supportable, and minimally disruptive to site operations.

Responsibilities include but are not limited to the following:
  • Work closely with existing network, support, and engineering teams to evaluate current configurations, document risks, recommend improvements, and support implementation of security controls across field-hosted, cloud-connected, and enterprise network environments.
  • Define realistic mitigation paths that balance security, usability, field deployment simplicity, customer needs, and maximum system availability.
  • Develop containment strategies & recovery plans to minimize operational disruptions.
  • Shadow field and support personnel on occasional field visits to understand the procedural, environmental, and operational constraints.
  • Design secure industrial network architectures following Purdue Model principles.
  • Participate and Support OT cybersecurity incident response and forensic investigations.
  • Troubleshoot and resolve real-world issues using tools such as Python, PowerShell, Bash, Ansible, Terraform, or similar technologies.
  • Identify risks and translate findings into actionable remediation plans
  • Support risk assessments aligned with international (IEC 62443, ISO 27001, NIST CSF 2.0), regional (NOG-104, CIS), and internal standards.
  • Identify creative methods to support customer requirements like data sovereignty while maintaining remote patching of international systems.
  • Configure deployment and support technologies (Fortinet, Starlink, BeyondTrust) to maintain global standardization.
  • Leverage centralized tools (NinjaOne, Zabbix, SentinelOne) and collaborate with Systems Engineers to quantify risks and track adoption of improvements.
  • Contribute to cybersecurity documentation, SOPs, and standards
  • Support workflow and ticketing integration using tools such as Jira
  • Act as a bridge between cybersecurity and operational execution, translating security requirements into practical, scalable solutions


Qualifications

Required Qualifications
  • Bachelor's degree in computer science, information technology, cybersecurity, network engineering, engineering, or a related technical field; equivalent experience may be considered.
  • 5-10 years in cybersecurity, systems engineering, network engineering, or related roles
  • Strong understanding of networking fundamentals, including TCP/IP, routing, switching, DNS, DHCP, NAT, VLANs, firewalls, VPNs, and remote access technologies.
  • Experience deploying and maintaining vulnerability management, security monitoring, SIEM, centralized logging, configuration compliance, and alerting solutions within IT/OT environments to enhance security visibility, operational resilience, and risk reduction.
  • Experience with local and remote support of industrial OT networks, firewall policy management, segmentation, secure remote access, and troubleshooting.
  • Ability to evaluate technical environments, identify security gaps, and recommend practical remediation steps.
  • Experience with cybersecurity risk assessments for industrial systems.
  • Experience supporting products deployed in customer OT environments.
  • Experience writing scripts or automation using tools such as Python, PowerShell, Bash, Ansible, Terraform, or similar technologies.
  • Ability to communicate technical risks and recommendations clearly to both technical and non-technical stakeholders.
  • Strong documentation skills, including network diagrams, configuration standards, implementation procedures, and technical notes.
  • Ability to collaborate effectively with network, field support, cybersecurity, infrastructure, cloud, and application teams.
  • Experience with standards or frameworks such as NIST CSF 2.0, CIS Controls, ISO 27001, IEC 62443, or other cybersecurity best practices.

Preferred Qualifications
  • Experience supporting remote field networks, industrial environments, customer-connected systems, or distributed infrastructure.
  • Experience supporting offshore, drilling, marine, energy, or critical infrastructure environments.
  • Experience with cloud networking and security concepts in platforms such as Azure, AWS, or Google Cloud.
  • Familiarity with zero trust concepts, identity-based access, certificate-based authentication, privileged access management, and least-privilege design.
  • Relevant certifications such as CCNA, CCNP, Security+, CySA+, CISSP, GICSP, PCNSA, Fortinet NSE, or equivalent.
  • Experience working with


About the Team

Corporate

Our family of companies is supported by our global Corporate teams, providing expert knowledge from functions including Human Resources, Information Technology, Compliance, Finance, QHSE, Marketing and Legal centers of expertise. We are structured to provide guidance and service above all to all our business operations.

About NOV, Inc.

NOV, Inc. Careers

Joining NOV, Inc. presents an unparalleled opportunity to advance a career in the energy sector with a company at the forefront of driving innovation and growth. NOV, Inc. is actively seeking professionals who are ready to engage with a global team that values leadership, diversity, and professional development.

Explore Job Opportunities

NOV, Inc. offers a variety of job opportunities that cater to a range of skills and experiences. Whether it's in engineering, finance, or project management, NOV, Inc. positions itself as a leader in career advancement in the energy industry. Explore open positions that align with professional skills and career interests.

Internship Programs

NOV, Inc. believes in nurturing talent from the ground up. Internship programs at NOV, Inc. provide invaluable industry exposure and hands-on experience, making them a cornerstone of professional development for students and recent graduates eager to make their mark.

Commitment to Employee Growth and Benefits

At NOV, Inc., employee growth is a priority, supported by comprehensive benefits and diversity training programs designed to foster an inclusive workplace. NOV, Inc. invests in its team, ensuring access to the tools and training necessary to excel both professionally and personally.

Cultivating a Culture of Innovation

The culture at NOV, Inc. is built on a foundation of innovation and collaborative problem-solving. Employees are encouraged to bring fresh ideas and perspectives to the table, driving the company’s leadership in the energy sector.

Professional Development and Networking

NOV, Inc. is dedicated to the continuous professional development of its team members through leadership training, networking opportunities, and robust career paths. Employees at NOV, Inc. enjoy a dynamic environment where they can build strong professional networks and enhance their career trajectory.

Hiring Process

The hiring process at NOV, Inc. is designed to be transparent and engaging, starting from the initial job posting to the final interview. Candidates are encouraged to showcase their skills and experiences through a detailed resume and during the interview process, ensuring a fit that is beneficial both for the individual and for NOV, Inc.

Join the NOV, Inc. Team

NOV, Inc. is looking for passionate, curious, and innovative team players. Search for open positions that match skills and interests on the NOV, Inc. careers page. Discover how a position at NOV, Inc. can propel a career to new heights.

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