Senior Network Security Architect

About the role

Applied Materials is looking for a highly experienced Senior / Principal Network Security Architect to lead the strategy, architecture and governance of its global network security infrastructure. The role defines the future-state architecture and technology roadmap across enterprise, cloud, manufacturing (OT), data center and remote access environments, partnering with engineering, operations, cybersecurity, cloud, manufacturing and business leadership teams.

Key responsibilities

• Define and govern the global network security strategy, architecture and multi-year roadmap, including Zero Trust, SASE/SSE, cloud security, SD-WAN and network modernization.
• Architect and govern solutions such as Next-Generation Firewalls, SSE/SASE, ZTNA, SWG, DLP, DNS Security, WAF, DDoS protection and NDR, and set standards for segmentation and micro-segmentation.
• Design secure connectivity patterns for Azure, AWS and hybrid cloud environments, and govern ExpressRoute, Direct Connect and cloud firewalls.
• Define secure network architectures for manufacturing and OT environments, aligned with ISA-95, Purdue Model, NIST CSF and IEC 62443, and design secure remote access and monitoring.
• Lead architecture reviews, approve HLDs and LLDs, mentor engineers and architects, and establish engineering standards.
• Ensure compliance with NIST CSF, NIST 800-53, CIS Controls, ISO 27001, IEC 62443, PCI DSS, conduct risk assessments and threat modeling, and support incident investigations.
• Promote IaC, APIs, security automation, and AI-driven efficiency; develop frameworks for telemetry, observability and predictive analytics.
• Develop business cases, TCO analyses, vendor evaluations and proof-of-concepts, manage vendor relationships and support licensing, contracts and budget planning.

Required profile

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, Engineering or a related discipline.
• 12+ years of experience in enterprise networking and security.
• 5+ years in architecture, principal engineering or technical leadership roles.
• Proven experience designing and implementing large-scale enterprise security architectures.
• Recognized subject matter expert and technical leader who influences executives and business stakeholders and mentors senior engineers.

Required skills

• Strong knowledge of Zero Trust, network security and firewalls, SSE/SASE, SD-WAN, routing and switching, cloud security, DNS/PKI and identity integration, and NDR.
• Preferred: Palo Alto Networks, Zscaler, Akamai, ExtraHop/Corelight/Vectra, ClearPass/Forescout, Azure and AWS networking, and CISSP, CCIE, CCNP, CCSP, CCIE Enterprise Security, CCNP Enterprise, Palo Alto PCNSE, Azure Security Engineer Associate, AWS Security Specialty, Zscaler Certified Architect.