Systems And Infrastructure Engineer, Information Security

Staff, Systems And Infrastructure Engineer, Information Security

Apply for the Staff, Systems And Infrastructure Engineer, Information Security role at Walmart
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$/yr - $/yr

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.

• Research, design, test, and document IoT/OT solution patterns to integrate with current and future solution 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.
• 5+ years of experience in IoT/OT security, operations, or related field.
• Relevant certifications such as IEC 62443, CISSP, GICSP, etc. are a bonus.
• Experience with IoT/OT protocols, standards, and platforms 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, Schneider Electric, Honeywell, Emerson, etc.).
• Experience deploying, tuning, and integrating OT IDS tools (Armis, Claroty, Dragos, Nozomi, Defender for IoT, etc.).
• Experience with programming languages and configurations such as Python, Power Shell, Bash, Terraform, YAML, SQL, etc.
• Experience with cloud and network technologies such as GCP, Big Query, Azure, TCP/IP, VPN, etc.
• Familiarity with using artificial intelligence for scripting and code development.
• Familiarity with CI/CD pipelines to maintain solutions and integrations.
• Familiarity with security regulations and standards such as IEC 62443, NIST 800‑82, NERC‑CIP, TSA Security Directives, ISO, HIPAA, PCI, etc.
• Strong analytical, problem‑solving, and communication skills.
• Architecture and solution‑pattern development skillsets in complex environments.

Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That’s what we do at Walmart Global Tech. We’re a team of software engineers, data scientists, cybersecurity experts, and service professionals within the world’s leading retailer who make an epic impact and are at the forefront of the next retail disruption.

People are why we innovate, and people power our innovations. We are people‑led and tech‑empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kick‑start a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions, and reimagine the future of retail.

Walmart’s culture is a competitive advantage, and it’s fostered by being together. Working together in person allows us to collaborate, align quickly and innovate with greater speed. We use our campuses to create purposeful connection rooted in deepening understanding and investing in the development of our associates.

Walmart is a global company with offices across the United States and around the world. Our global…