Network Security Engineer

Title: Network Security Engineer

Location: Onsite in Addison, TX 4-days per week.

Duration: 6 Months CTH

Job Description

We're seeking an experienced and proactive Network & Cloud Security Engineer to help drive the evolution of our enterprise security posture across both on-premises and cloud environments. In this role, you'll take the lead on designing, deploying, and maintaining advanced network security solutions that support critical business systems and regulatory standards. You'll collaborate with teams across infrastructure, application, and cloud domains to ensure secure connectivity, resilience, and scalability throughout the organization's IT landscape.

Job Scope:

• Partner with internal DevOps, infrastructure, and application teams to implement and manage robust network defenses across both private data centers and cloud platforms.
• Architect secure connectivity strategies using virtual and physical firewalls, routing protocols, segmentation, and peering techniques to maintain network integrity and performance.
• Stay informed of emerging cyber threats, vulnerabilities, and exploit methods; lead the response by applying patches and updates across environments.
• Provide mentorship to junior engineers and contribute to a knowledge-sharing culture within the InfoSec team.
• Design and automate cloud security architecture-leveraging Terraform and GitLab CI/CD pipelines-for scalable and secure cloud adoption, particularly in AWS and Azure environments.
• Establish deployment templates and best practices for network and firewall configurations used across the enterprise.
• Ensure monitoring, alerting, and event correlation are effectively configured to detect anomalies and system disruptions across network security tools.
• Maintain up-to-date documentation, architecture diagrams, and process workflows that align with operational and compliance requirements.
• Evaluate and implement innovative security tools to enhance threat detection and system hardening.
• Act as a senior-level responder during high-priority security incidents or outages.
• Stay on the forefront of cybersecurity developments, contributing to the organization's evolving defense strategy.

Requirements:

• Bachelor's degree in a technology-related field (or equivalent professional experience).
• Minimum 5 years of hands-on experience in network and systems security engineering in hybrid cloud environments.
• Expertise in network fundamentals and security protocols (e.g., TCP/IP, BGP, VPN, NAT, VLANs, microsegmentation, subnetting).
• Proficiency in security management across AWS, Azure, and VMware environments.
• Demonstrated experience with infrastructure-as-code, especially Terraform and GitLab for provisioning secure environments.
• Advanced knowledge of firewall and application delivery technologies from vendors such as Palo Alto, Citrix, VMware, and cloud-native services.
• Familiarity with compliance and control frameworks such as SOX, NIST, and HIPAA.
• Proven ability to implement zero trust principles, reduce attack surfaces, and secure perimeter designs in large-scale infrastructures.
• Excellent communication, documentation, and troubleshooting abilities in fast-paced environments.

Preferred Skills & Certifications:

• Certifications in AWS or Azure Cloud specializations, preferred.
• Palo Alto Networks certifications (PCNSE or equivalent), preferred.
• Experience with managed detection and response (MDR) platforms like Cortex XDR, CrowdStrike Falcon, or Rapid7, preferred
• Background in healthcare IT environments, with an understanding of HIPAA compliance requirements, preferred.