Senior Network Engineer/Architect

Who We Are

Applied Materials is a global leader in materials engineering solutions used to produce virtually every new chip and advanced display in the world. We design, build and service cutting-edge equipment that helps our customers manufacture display and semiconductor chips – the brains of devices we use every day. As the foundation of the global electronics industry, Applied enables the exciting technologies that literally connect our world – like AI and IoT. If you want to push the boundaries of materials science and engineering to create next generation technology, join us to deliver material innovation that changes the world. 

What We Offer

Location:

Singapore,SGP

You’ll benefit from a supportive work culture that encourages you to learn, develop, and grow your career as you take on challenges and drive innovative solutions for our customers. We empower our team to push the boundaries of what is possible—while learning every day in a supportive leading global company. Visit our Careers website to learn more. 

At Applied Materials, we care about the health and wellbeing of our employees. We’re committed to providing programs and support that encourage personal and professional growth and care for you at work, at home, or wherever you may go. Learn more about our benefits. 

We are seeking a Senior Network Engineer/Architect with deep expertise across WAN, LAN, WLAN, SD‑WAN, Private 5G and Sensors technologies to design, implement, and operate secure, resilient, and scalable enterprise network infrastructure.

This role is hands-on and highly technical, with responsibility for architecture, engineering, lifecycle management, automation, and operational excellence across campus, data center, manufacturing, R&D, and cloud-connected environments.

The Senior Network Engineer/Architect partners closely with security, cloud, OT, and application teams to deliver reliable connectivity aligned with business priorities.

Key Responsibilities

1. Network Engineering & Architecture

• Design, implement, and support enterprise WAN, LAN, WLAN, SD‑WAN, firewall, and Private 5G network solutions.
• Lead detailed network designs for campus, data center, manufacturing, OT, and R&D environments.
• Develop and maintain high- and low-level design documentation, traffic flows, and implementation guides.
• Ensure network solutions meet requirements for scalability, resilience, performance, and security.
• Contribute to reference architectures and standardized network patterns.

2. LAN & WLAN Engineering

• Design and deploy campus and building LANs, including switching, VLANs, routing, and redundancy models.
• Engineer enterprise Wi‑Fi solutions focusing on RF design, capacity planning, and performance optimization.
• Troubleshoot complex wired and wireless issues using packet captures, telemetry, and logs.
• Support NAC, 802.1X, and identity-based access integrations.

3. WAN / SD‑WAN Engineering

• Engineer and operate global WAN and SD‑WAN deployments, including internet, MPLS, DIA, and cloud connectivity.
• Optimize routing, traffic steering, QoS, and application performance.
• Support segmentation, redundancy, failover, and high-availability designs.
• Work with service providers and vendors on circuit provisioning, troubleshooting, and optimization.

4. Private 5G, OT & Sensor Network Engineering

• Design, implement, and support Private 5G, OT, and sensor network connectivity for manufacturing, industrial, and R&D environments.
• Integrate Private 5G with existing wired (LAN), wireless (WLAN), SD‑WAN, and WAN infrastructures to provide seamless and secure end-to-end connectivity.
• Engineer secure, scalable connectivity for industrial devices, PLCs, sensors (IIoT), robots, vision systems, and IoT platforms.
• Support deterministic, high-availability network designs to meet low latency, high reliability, and real-time traffic requirements.
• Implement segmentation and security controls to isolate OT systems, sensor networks, and IT workloads while enabling controlled data exchange.
• Collaborate with OT, manufacturing, and security teams to align network design with safety, production continuity, and compliance requirements.
• Ensure ongoing monitoring, performance optimization, and lifecycle management of Private 5G cells, gateways, edge devices, and sensor connectivity.

 5. Network Security Integration

• Configure and support firewalls, VPNs, ZTNA, and secure connectivity in partnership with security teams.
• Implement segmentation, access controls, and secure routing architectures.
• Participate in firewall policy design reviews and traffic flow validation.
• Ensure networks align with Zero Trust and defense-in-depth principles.

6. Operations, Troubleshooting & Incident Escalation Support

• Act as a senior technical escalation point for complex network incidents.
• Perform root cause analysis and implement corrective and preventive actions.
• Support network changes, upgrades, and maintenance with minimal disruption.
• Participate in on-call or escalation rotations as required.

6. Automation, Standards & Continuous Improvement

• Develop and maintain network standards, templates, and configuration baselines.
• Drive automation using scripting and infrastructure-as-code approaches where applicable.
• Reduce operational debt through simplification, standardization, and lifecycle management.
• Track and improve network performance, availability, and operational metrics.

7. Cross-Functional Collaboration

• Work closely with Network Security, Cloud, OT, Application, and Infrastructure teams.
• Support project planning, technical assessments, and implementation timelines.
• Participate in design reviews and architecture discussions.
• Clearly communicate technical issues, risks, and recommendations to stakeholders.

8. Financials & Project Management

• Own end to end budgeting and financial governance for network products, including annual OPEX/CAPEX planning and funding approvals.
• Manage renewals and vendor contracts, driving cost optimization and negotiating savings across all platforms and services.
• Lead project intake cost modeling, including resource costing, design/engineering estimates, and financial impact assessments.

Qualifications

Education

• Bachelor’s/Diploma degree in Computer Science, Information Technology, Cybersecurity, Engineering, or related field.

Experience

• 8–12+ years of experience in enterprise network engineering
• Strong hands-on experience with:
  •  WAN, SD‑WAN, LAN, WLAN,
  • Firewalls, VPN / ZTNA
  • Sensors & Private5G
  • Manufacturing, OT, or large campus networks
• Experience supporting hybrid environments with public cloud connectivity (AWS, Azure)

Skills

• WAN & SD‑WAN: Routing (BGP, OSPF), MPLS, DIA, cloud interconnects
• LAN & WLAN: Switching, VLANs, RF design, wireless troubleshooting
• Security: Firewalls, VPNs, segmentation, NAC
• Private 5G: Architecture, integration, and operational support (preferred)
• Network monitoring, telemetry, and troubleshooting tools
• Strong understanding of high availability, redundancy, and performance optimization

Soft Skills

• Strong problem-solving and analytical mindset
• Ability to work independently on complex technical challenges
• Clear written and verbal communication skills
• Collaborative approach across cross-functional teams
• Operational discipline with attention to detail

Preferred

• Network Wired/Wireless certifications (CCNP/CCIE, Aruba, Palo Alto etc.)
• Experience in manufacturing or industrial network environments
• Familiarity with ITIL, NIST, or enterprise network standards

Additional Information

Time Type:

Full time

Employee Type:

Assignee / Regular

Travel:

Yes, 10% of the Time

Relocation Eligible:

Yes

Applied Materials is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, national origin, citizenship, ancestry, religion, creed, sex, sexual orientation, gender identity, age, disability, veteran or military status, or any other basis prohibited by law.