Principal, Systems and Infrastructure Engineer, Information Security

Walmart-posted about 18 hours ago
$110,000 - $264,000/Yr
Full-time • Mid Level
Bentonville, AR
5,001-10,000 employees
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At Walmart, we prioritize innovation and data security. Our team is dedicated to maintaining a secure operating environment and preserving the trust of our customers, associates, and stakeholders. We combine a range of services and expertise to prevent fraud, detect threats, and manage digital risk and access. Our focus is on mitigating attack risks, securing cloud transformation, and fostering a culture of security and reliability within our team What you'll do... Walmart is searching for an experienced IoT/OT practitioner to join our team and continue our mission of securing a large scale and diverse businesses environment. As an IoT/OT Security (Distinguished, Principle, Staff, Senior) Engineer, you will be responsible for designing and developing solutions that secure the IoT/OT solutions supporting the enterprise at large. The environment will include a variety of sensors, cameras, robots, printers, SCADA controllers, and industrial automation platforms. In addition to ensuring the security and compliance of these systems and devices, the role will be responsible for providing guidance to other teams and stakeholders.

  • Research, design, test, and document IoT/OT solution patterns to integrate with current and future solutions sets.
  • Implement security controls and best practices for IoT/OT systems and devices, such as encryption, authentication, authorization, logging, patching, etc.
  • Collaborate with vulnerability assessment and penetration testing teams to identify risks, findings, and remediations across the IoT/OT landscape.
  • Collaborate with other teams and stakeholders to ensure the security and compliance of IoT/OT systems/devices, and provide training and awareness as needed.
  • Stay updated on the latest trends and developments in IoT/OT security and evaluate and recommend new technologies and solutions.
  • Perform protocol aware traffic analysis (Modbus, DNP3, OPC UA, FOX)
  • Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent work experience.
  • Relevant certifications such as IEC 62443, CISSP, GICSP, etc…
  • 10+ years of experience in IoT/OT security, system operations, or related field.
  • Experience with IoT/OT protocols such as Modbus, Bacnet, FOX, MQTT, CoAP, OPC UA, Azure IoT, etc.
  • Experience with IoT/OT devices, sensors, and hardware, such as IoT single-board computers, PLCs (, RTUs, etc.
  • Experience with OT environments including ICS and SCADA systems (GE, ABB, Siemens, Schnieder Electric, Honeywell, Emerson, etc…)
  • Experience with security tools and frameworks, such as Wireshark, Nmap, Metasploit, Burp Suite, OWASP, etc.
  • Experience with computer languages and configurations, such as Python, Powershell, Bash, Terraform, YAML, SQL, etc..
  • Experience deploying, tuning, and integrating OT IDS tools (Armis, Claroty, Dragos, Nozomi, Defender for IoT, etc)
  • Familiar with using artificial intelligence for scripting and code development
  • Familiar with CI/CD pipeline to maintain solutions and integrations
  • Familiar with OT/IoT architecture security design and review for OT/IoT systems
  • Experience with cloud and network technologies, such as GCP, BigQuery, Kubernetes, Azure, TCP/IP, VPN, etc.
  • Background & experience with security regulations and standards, such as IEC 62443, NIST 800-82, NERC-CIP, TSA Security Directives, ISO, HIPPA, PCI, etc
  • Strong analytical, problem-solving, and communication skills.
  • Architecture & Solution pattern development skillsets in complex environments
  • Ability to work independently and as part of a team.
  • Ability to learn new technologies and skills quickly.
  • Familiar with OT/IoT threat actors and their techniques
  • Option 1: Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 5years’ experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.
  • Option 2: 7 years’ experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.
  • Certification in Security+, GISF, CISSP, CCSP, or GSEC
  • Master’s degree in computer science, information technology, engineering, information systems, cybersecurity or related area and 3 years’ experience leading information security or cybersecurity projects
  • 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.
  • Beyond our great compensation package, you can receive incentive awards for your performance.
  • Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more.
  • 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.
  • 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.
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