Job Description

Randstad is seeking an experienced Senior Network Security Engineer to serve as a technical leader in designing, implementing, and optimizing perimeter and infrastructure security controls for our premier client in Washington, DC. In this high-impact role, you will be responsible for safeguarding critical enterprise infrastructure across on-premises networks and multi-cloud environments (AWS and Microsoft Azure) with a heavy focus on Palo Alto Networks firewalls. Leveraging 11+ years of cybersecurity expertise, you will proactively manage network threats, drive security automation, align controls with regulatory frameworks, and mentor junior engineering staff to strengthen the organization's overall security posture.

• Perimeter & Firewall Administration: Lead the design, configuration, rule maintenance, and optimization of enterprise Palo Alto Networks firewalls and associated perimeter security platforms.
• Network Infrastructure Security: Maintain and support Web Application Firewalls (WAF), Intrusion Detection/Prevention Systems (IDS/IPS), VPNs, and Network Access Control (NAC) technologies.
• Cloud & Hybrid Security Integration: Partner with cloud, network, and application teams to implement secure architectures across AWS and Microsoft Azure environments.
• Threat Mitigation & Operations: Analyze and respond to network security incidents, monitor events via SIEM platforms, perform threat hunting, and conduct root-cause forensic investigations.
• Risk Assessment & Compliance: Conduct security reviews and risk assessments for new systems and architectural designs, ensuring compliance with NIST, CIS, PCI-DSS, HIPAA, and ISO standards.
• Automation & Engineering: Streamline operational security tasks by building automation scripts using Python, PowerShell, or Bash.
• Documentation & Strategy: Develop and maintain operational runbooks, network diagrams, and standard operating procedures to support long-term security strategy.
• Technical Leadership: Guide multi-disciplinary project teams throughout the system development lifecycle and provide mentorship to junior security engineers.
• Operational Support: Participate in planned maintenance windows, after-hours implementations, and emergency incident response activities.

• Education: Bachelor's degree in Cybersecurity, Computer Science, Information Technology, Engineering, or a related field.
• Experience: 11+ years of dedicated cybersecurity engineering experience, with a core focus on enterprise network and firewall security.
• Technical Expertise: Advanced, hands-on administration of Palo Alto Networks firewalls in complex enterprise environments.
• Networking Mastery: Deep knowledge of TCP/IP, routing, switching, VPNs, WAN/LAN architectures, and perimeter defense concepts.
• Security Technologies: Practical experience managing IDS/IPS, SIEM, EDR, DLP, CASB, and WAF solutions.
• Cloud Security: Direct experience supporting and securing cloud infrastructure within AWS and Microsoft Azure environments.
• Automation: Proficiency in scripting and automating security workflows using Python, PowerShell, or Bash.
• Frameworks & Compliance: Solid understanding of industry frameworks and standards, including NIST, CIS Controls, PCI-DSS, HIPAA, and ISO 27001.
• Soft Skills: Exceptional problem-solving abilities, strong written and verbal communication, and proven stakeholder management skills.

• Master's degree in Cybersecurity, IT, or a related field.
• Active industry certifications such as PCNSE, CISSP, CCNP Security, GIAC, CEH, or Security+.
• Background working directly with or within a Security Operations Center (SOC).
• Experience implementing Zero Trust security architectures and cloud-native security tools.

Required Skills :

Basic Qualification :

Additional Skills :

Background Check : No

Drug Screen : No

Job Tags

Similar Jobs