Network Security Engineer – Cloud & HPC

NorthMark Compute & Cloud; Dallas (TX); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Lunch stipend

Medical insurance

Dental & Vision

Parental leave

Life insurance

Disability insurance

401(k) match

Health Savings Accounts

Flexible Spending Accounts

Paid time off

Job summary

NorthMark Compute & Cloud is seeking a hands-on Network Security Engineer to design and maintain security across its hyperscale HPC and cloud compute environment. You will drive controls, automation, and operational practices to keep infrastructure secure at scale.

The ideal candidate brings deep technical expertise and a proactive approach to risk, working with cross-functional teams to secure on-premises and cloud networks in a fast-paced, innovation-driven environment.

Qualifications

• 5+ years in network security engineering.
• Experience with on-prem and cloud networks (AWS/Azure/GCP).
• Proficient with firewalls, VPNs, proxies, and encryption.

Responsibilities

• Design, implement, and maintain network security architecture including firewalls, IDS/IPS, VPNs, and related controls across on-premises and cloud environments
• Serve as the team's primary subject matter expert for network security technologies, providing guidance and technical direction on complex security challenges
• Evaluate and recommend new network security technologies and solutions to continuously improve the organization's security posture
• Collaborate with infrastructure, cloud, and IT operations teams to ensure network security controls are integrated into new and existing environments
• Monitor network security events and alerts, investigate anomalies, and lead response efforts for network-based threats
• Develop and maintain network security standards, policies, and technical documentation
• Support network segmentation and micro-segmentation efforts by providing technical expertise on traffic flows, access controls, and policy enforcement
• Participate in security architecture reviews for new projects, systems, and third-party integrations to ensure network security requirements are addressed
• Mentor junior security engineers and contribute to the overall growth and development of the network security team

Skills

Network security

Python scripting

Ansible/Terraform

Cloud networking

Zero Trust

Documentation

Tools

Firewalls

VPNs

Proxies

MACsec

IPsec

TLS/HTTPS

DNS

NTP

AAA

Job description

NorthMark Compute & Cloud is seeking a hands-on Network Security Engineer to design and maintain security across its hyperscale HPC and cloud compute environment. You will drive controls, automation, and operational practices to keep infrastructure secure at scale.

The ideal candidate brings deep technical expertise and a proactive approach to risk, working with cross-functional teams to secure on-premises and cloud networks in a fast-paced, innovation-driven environment.