Senior Network Security Engineer

Lawrence Harvey is partnering with a client that is scaling and advancing in high performance computing (HPC) and cloud infrastructure technology. They are building the foundation and critical infrastructure needed to support their respective clients efforts for research, analysis, etc.

We are looking for a Senior Network Security Engineer who thrives in large-scale, high-availability environments. The role focuses on strengthening and evolving complex security architectures while driving modernization through automation and engineering best practices.

What You’ll Be Responsible For

• Provide technical leadership across network security initiatives, offering direction on architecture, troubleshooting, and operational strategy
• Design, deploy, and maintain robust security controls across network layers, including segmentation, hardening, and traffic inspection mechanisms
• Take ownership of high-priority incidents, acting as a key escalation point and driving resolution efforts
• Develop and refine security standards, policies, and threat models, ensuring continuous improvement through root cause analysis
• Lead vulnerability management efforts, including coordination of testing activities and prioritization of remediation strategies
• Advance automation initiatives by building and integrating tooling for provisioning, policy management, and ongoing operations leveraging Python, Terraform and other tools, like Tufin, Jenkins and Git
• Collaborate cross-functionally with infrastructure, platform, and application teams to embed security into system design and delivery processes

What You Bring

• Strong background in both network and security engineering, including hands-on experience designing and supporting segmented environments across multiple trust zones
• Deep understanding of networking fundamentals, including protocols, traffic flows, and distributed system communication
• Experience working with a range of security technologies such as next-generation firewalls, secure connectivity solutions, encryption standards, identity services, and traffic management tools, including: Palo Alto, Fortinet, Check Point and F5
• Familiarity with leading security platforms and vendors across firewalling, application delivery, and network protection
• Solid grasp of modern security concepts such as Zero Trust (ZTA), micro-segmentation, and cloud-native security architectures (AWS or Azure)
• Experience leveraging scripting or infrastructure-as-code tools (Terraform to automate security operations and workflows (Ansible, Python)
• Extras: VxLAN EVPN DC architecture experience, CISSP, CCIE Security, GIAC, other relevant firewall certifications

No C2C and no visa transfer or sponsorship at this time.