Staff Network Security Engineer - Federal

As a Staff Network Security Engineer on the Network Security Team, you will focus on designing and engineering secure networking solutions to support ServiceNow’s production environments, including U.S. Federal cloud platforms. You’ll work with modern firewall platforms, VPN solutions, and security automation tools to enhance our global network posture. You’ll contribute to implementation decisions, drive improvements in infrastructure security, and collaborate closely with other infrastructure and security teams to ensure scalable and compliant designs. In this role you will: Design and implement network security controls including firewall policies, segmentation, and access models; Engineer and support VPN configurations for internal and customer use cases; Develop DDoS mitigation strategies and implement protection across edge and cloud environments; Own and manage firewalls, including policy lifecycle and operational health; Build and improve automation for security infrastructure using Ansible, Python, or similar tools; Participate in change implementations and ensure safe deployment of network security updates; Support incident response efforts with technical analysis and corrective design changes; Contribute to internal standards documentation, implementation guides, and peer reviews; and Collaborate with engineers across Network Engineering, Cloud, and Security teams on secure network solutions.