Senior Network Security Engineer @ Remote Role

Senior Network Security Engineer

Key Responsibilities

• Translate high-level business strategic objectives and goals into Enterprise IT requirements and conceptual designs.
• Develop and support comprehensive solutions that meet requirements and align with HPE's global network security and strategy using Juniper SRX platforms.
• Develop and maintain a multi-year strategic network and security architecture roadmap, incorporating Zero Trust and firewall-based segmentation models.
• Lead end-to-end network and security architecture across global platforms ensuring secure, high-performing, fault-tolerant, and resilient environments.

Segmentation & Zero Trust Responsibilities (Juniper SRX Focus)

• Architect and implement network segmentation strategies using Juniper SRX firewalls across data center, campus, and cloud environments to limit lateral movement and enforce least-privilege access.
• Design and operationalize Zero Trust Architecture (ZTA) principles, integrating identity, application, and network-based policy enforcement using firewall controls.
• Collaborate with application owners to discover, validate, and map application dependencies to enable policy-driven segmentation via firewall rules and security zones.
• Define and enforce granular security policies using zone-based segmentation, VRFs, and SRX policy constructs across hybrid environments.
• Integrate segmentation with firewalls, SIEM, IAM, EDR/XDR, and cloud-native controls for unified policy enforcement.
• Lead adoption and standardization of Juniper SRX as the primary segmentation enforcement platform across enterprise environments.
• Develop segmentation governance models, policy lifecycle management, and compliance alignment (CIS/NIST/Zero Trust frameworks).

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Core Network Security Responsibilities

• Participate in network security design reviews and ensure all implementations meet enterprise security standards.
• Analyze business requirements to design and implement security across data centers, campus networks, and hybrid environments.
• Provide ongoing risk metrics, control effectiveness tracking, and security posture reporting.
• Conduct and support internal and external security audits and compliance assessments.
• Maintain awareness of emerging threats and update policies accordingly.
• Develop and manage policies, processes, and procedures ensuring reliability, availability, and security of network systems.
• Manage and optimize Security Information and Event Management (SIEM) systems.
• Collaborate with Cyber Security, infrastructure, and application teams toward compliance and operational excellence.

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Technical Qualifications

• Strong hands-on experience in designing and implementing network segmentation using enterprise firewalls (Juniper SRX preferred) in complex environments.
• Proven capability to build application-aware firewall policies based on traffic flow analysis.
• Experience with policy design, enforcement, monitoring, and optimization in firewall-based segmentation environments.
• Strong understanding of east-west traffic inspection, security zoning, and firewall-enforced segmentation.
• Familiarity with Zero Trust Network Access (ZTNA) and identity-driven access models.

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Network Security & Infrastructure

• Strong experience managing LAN/WAN security technologies, including firewalls, IDS/IPS, SIEM, VPN, and NAC.
• Expertise in firewall architecture and design with strong hands-on experience in Juniper SRX (primary), along with Fortinet and Palo Alto.
• Deep expertise in:
  • Security zones, policies, NAT, routing
  • Application control and threat prevention
  • High-availability clustering and scale design
• Experience securing public and private cloud (AWS, Azure, Google Cloud Platform) environments.
• Design and implementation of Web Application and API Protection (WAAP) solutions.
• Strong experience in proxy (forward/reverse), load balancing, and application security integration.
• Experience with SDN and SD-WAN architectures, including segmentation use cases.

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Networking & Protocol Expertise

• Strong knowledge of:
  • Routing protocols: BGP, OSPF, RIP, MPLS
  • Network services: DNS, DHCP, NTP
  • IPv4/IPv6 architecture and traffic management
• Experience in QoS, NetFlow, ACLs, NAT, multicast, and wireless technologies (802.11 variants).
• Experience with F5 GTM/LTM, VPN technologies, and Internet proxy solutions.

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Data Center & Infrastructure

• Experience managing enterprise data center environments with technologies including:
  • Aruba, Arista, Juniper switching
  • Firewalls, WAN optimization, IDS/IPS, DLP
• Strong understanding of structured cabling and network facilities.

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Operations & Lifecycle Management

• Plan, implement, and document infrastructure changes, including upgrades and migrations.
• Work within ITIL frameworks for incident, change, and problem management.

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Education & Certifications

• Bachelor's Degree in Computer Science, Network Engineering, or related field (or equivalent experience).
• 10+ years of experience in global network security environments.
• Preferred certifications:
  • CCNP / CCIE
  • JNCIS/JNCIP/JNCIE (Juniper SRX focus preferred)
  • Security certifications (CISSP, CISM, or equivalent) are a plus