Web Security & Infrastructure Engineer III

Walmart; Sunnyvale (CA); On-site; USD 117,000 - 234,000; Full time

Benefits offered by this job

Health benefits

401(k)

Paid time off

Job summary

Walmart in Sunnyvale, CA is seeking an Systems and Infrastructure Engineer III in Information Security to strengthen the security of all web ingress points across global ecommerce platforms. The role focuses on developing and tuning WAF policies, improving client-side fingerprinting, and defending against active cyber-attacks.

You will collaborate with network and site reliability teams to build and operate the infrastructure that supports Walmart’s web security posture and ensure secure,

Qualifications

• Experience/ability to create, tune and enforce WAF policies for global e-commerce sites.
• Knowledge of network protocols and web security fundamentals.
• Ability to manage security infrastructure across multiple regions.

Responsibilities

• Create, tune, and enforce Web Application Firewall (WAF) policies across global eCommerce sites.
• Continuously evaluate and adapt ingress security policies to evolving threat landscape.
• Mature client-side evaluation and fingerprinting capabilities.
• Assess and manage protection strategies during active cyber-attacks.
• Control and monitor scripted traffic across all digital properties.
• Collaborate with network and site reliability teams to secure ingress points.
• Build, deploy, and manage security infrastructure and operations.

Skills

WAF management

DDoS mitigation

TCP/IP/HTTPS/SSL

CDNs

client-side fingerprinting

log management (Splunk/Kibana/ArcSight

scripting

cloud platforms (Azure/GCP)

Education

Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area

Tools

Splunk

Kibana

ArcSight

Job description

Walmart in Sunnyvale, CA is seeking an Systems and Infrastructure Engineer III in Information Security to strengthen the security of all web ingress points across global ecommerce platforms. The role focuses on developing and tuning WAF policies, improving client-side fingerprinting, and defending against active cyber-attacks.

You will collaborate with network and site reliability teams to build and operate the infrastructure that supports Walmart’s web security posture and ensure secure,