Walmart

Systems and Infrastructure Engineer III, Information Security-Web Security

Walmart$117K — $234K *
US-Anywhere
+ 2 other locationsRemote
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science or related field, or 4 years of relevant experience
  • 2 years of experience in systems and infrastructure engineering in a tech-driven environment
  • Hands-on experience with Web Application Firewall (WAF) management
  • Strong knowledge of network and web protocols like TCP/IP, HTTPS, and SSL
  • Proficiency in log management tools like Splunk or Kibana
  • Scripting skills in at least one programming language
  • Familiarity with cloud platforms such as Azure and GCP

Responsibilities

  • Create and enforce WAF policies across global eCommerce platforms
  • Continuously adapt ingress security policies to meet evolving threats
  • Enhance client-side detection and fingerprinting capabilities
  • Manage protection strategies during active cyber-attacks
  • Control and monitor scripted traffic across all digital properties
  • Collaborate with network and site reliability teams for ingress security
  • Build and manage security infrastructure to support web security initiatives

Benefits

  • Comprehensive health benefits including medical, vision, and dental coverage
  • 401(k) and stock purchase plans
  • Paid time off policies including sick leave and parental leave
  • Short-term and long-term disability coverage
  • Educational benefits covering tuition and course fees for associates
  • Company discounts and military leave pay
  • Adoption and surrogacy expense reimbursement
Full Job Description
Position Summary...
This role is responsible for strengthening the security of all web ingress points across global eCommerce platforms. It focuses on developing and tuning WAF policies, enhancing client-side detection and fingerprinting, managing defenses during active cyber-attacks, and controlling scripted traffic. The position also collaborates closely with network and site reliability teams while building and operating the infrastructure that supports the organization's overall web security posture.

The Edge Ingress Security team plays a critical role in protecting our global eCommerce platforms from a wide range of online threats. From defending against web-based and DDoS attacks to managing unwanted scripted traffic and fraud, we are the gatekeepers of secure digital access. We collaborate closely with network, infrastructure, and product teams to ensure that every ingress flow-across all web properties-is secure, resilient, and adaptive to evolving threats. Our team thrives on solving complex security challenges in a fast-paced, high-impact environment.

What you'll do...

  • Create, tune, and enforce Web Application Firewall (WAF) policies across global eCommerce sites
  • Continuously evaluate and adapt ingress security policies based on the evolving threat landscape
  • Mature our 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 all ingress points
  • Build, deploy, and manage security infrastructure and operations to support overall web security


What you'll bring:
  • Hands-on experience with Web Application Firewall (WAF) management and DDoS mitigation strategies
  • Strong knowledge of network and web protocols such as TCP/IP, IPSec, HTTPS, and SSL
  • Deep understanding of how web properties and Content Delivery Networks (CDNs) function
  • Experience with client-side fingerprinting and behavioral data collection
  • Proficiency with log management tools such as Splunk, Kibana, or ArcSight
  • Strong scripting skills in at least one language
  • Familiarity with cloud platforms including Azure and GCP

Bonus points for:
  • A security-first mindset with a solid foundation in key security domains: access control, application security, network security, and architecture
  • Knowledge of network and security tools and protocols, including Firewalls and DNS
  • Strong analytical, problem-solving, and interpersonal communication skills
  • A collaborative spirit with a proactive and self-driven attitude


At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.

You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable.

For information about PTO, see https://one.walmart.com/notices.

Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.

For information about benefits and eligibility, see One.Walmart.

Sunnyvale, California US-11656: The annual salary range for this position is $117,000.00 - $234,000.00

Herndon, Virginia US-10710: The annual salary range for this position is $108,000.00 - $216,000.00

Additional compensation includes annual or quarterly performance bonuses.

Additional compensation for certain positions may also include :

- Stock








Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Option 1: Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 2years' experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.
Option 2: 4 years' experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Certification in Security+, GISF, CISSP, CCSP, or GSEC, Master's degree in Computer Science, Information Technology, Engineering, Information Systems, Cybersecurity, or related area, We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart's accessibility standards and guidelines for supporting an inclusive culture.

Primary Location...

1375 Crossman Ave, Sunnyvale, CA 94089-1114, United States of America

About Walmart

WalmartLabs is accelerating their development to redefine the shopping experience to meet the changing needs of our customers wherever they are —in a store, on our website, or on their mobile device.

Walmart Careers

Joining Walmart means becoming part of a world-renowned team that leads with innovation and is committed to creating impact. As the largest retailer globally, Walmart offers unparalleled job opportunities and career growth in an environment that values diversity and leadership. Work You’ll Do At Walmart, you will be part of a dynamic team that drives our mission to help people save money so they can live better. Engage in work that matters with a company that offers both stability and the flexibility to explore different career paths. Transform the retail landscape with your skills and help shape the future of millions of customers worldwide. Walmart is at the forefront of combining retail with advanced technology, making it an exciting place for professional growth and innovation. Lead with Us Step into a role that harnesses your potential and places you at the intersection of retail and technology. Walmart is not just a company; it's a community where you can develop your leadership skills and contribute to a culture that nurtures professional growth. Work with a diverse team of experts who bring a wealth of knowledge and experience to the table. Our commitment to diversity training ensures that all team members are valued and can thrive. Walmart Careers and Employment Opportunities We are continuously expanding our team to include enthusiastic professionals eager to drive change and make a significant impact. Explore a range of positions from entry-level to executive, each offering competitive benefits and the opportunity to advance. Innovate with Us Join Walmart and be part of a team that is dedicated to innovation and excellence. With over 2.3 million associates worldwide, you are joining the largest private employment group, ready to innovate, lead, and impact the global market. Internship Programs Kickstart your career with a Walmart internship. Gain invaluable experience, build your resume, and develop networking connections that will empower your career journey. Our internships provide a platform to apply your academic knowledge in real-world scenarios, preparing you for future employment. Be Part of a Great Team At Walmart, our team is our strength. We invest in our employees through robust training programs, leadership development, and opportunities for career advancement. Enjoy the benefits of working in a supportive and inclusive environment where every member’s contribution is valued. Future-Proof Your Career Your journey at Walmart can be as vast as your ambitions. With endless opportunities to grow, learn, and lead, you can take your professional experience to new heights. Benefit from our comprehensive training programs and develop the skills needed for tomorrow’s challenges. Stay Connected Join Our Team Search open positions that match your skills and interests. We are looking for passionate, curious, creative, and solution-driven team players. Explore the diverse job opportunities at Walmart and find where you can make a difference. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding opportunities that await at Walmart. SEARCH WALMART JOBS Join Walmart today and be part of a story of growth, innovation, and leadership.
Learn more about Walmart
Size
2,300 employees
Market Cap
$387 billion
Industry
Net Income
$13.5 billion
Founded
1962
5 Year Trend
+3.3%
Revenue
$559.1 billion
NASDAQ

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