Littelfuse is seeking a Senior Security Engineer to design, implement, and continuously improve security controls that protect enterprise systems, cloud services, applications, data, and manufacturing operations. As a senior technical expert, you will partner with IT, Engineering, Compliance, Product Security, and business teams to embed security into technology solutions and strengthen our global security posture.

About the job:

• Design, implement, and manage security controls across identity, endpoint, network, cloud, email, application, data, and manufacturing environments.

• Embed security by design into projects, architecture reviews, system integrations, and technology changes.

• Conduct security architecture reviews, risk assessments, vulnerability analysis, and third-party security assessments.

• Develop and maintain secure configuration standards, technical documentation, and implementation guidance.

• Drive remediation of vulnerabilities and configuration risks, validating effectiveness through testing and evidence.

• Support Security Operations with detection improvements, incident response enhancements, and control optimization.

• Partner with Compliance and Risk teams to translate business, customer, audit, and regulatory requirements into scalable technical controls.

• Leverage automation, AI, metrics, and dashboards to improve security effectiveness and efficiency.

• Contribute to customer security reviews, M&A activities, and other strategic initiatives.

AI and Automation

• Utilize Generative AI and Agentic AI responsibly to improve security analysis, vulnerability triage, documentation, and repetitive engineering tasks.

• Design and maintain secure automations and integrations using APIs, scripting, orchestration, and workflow tools.

• Assess AI-related risks including prompt injection, data leakage, excessive access, insecure integrations, and privacy concerns.

• Implement guardrails, validation mechanisms, logging, and human oversight for AI-enabled security processes.

About you:

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, Engineering, or a related field, or equivalent experience.

• 5+ years of experience in cybersecurity engineering, cloud security, infrastructure security, systems engineering, or related disciplines.

• Strong knowledge of security controls across identity, endpoints, networks, cloud platforms, applications, operating systems, and data protection.

• Experience conducting security assessments, vulnerability management, remediation programs, and risk-based decision-making.

• Hands-on experience with technologies such as EDR, PAM, SIEM, and related security platforms.

• Practical understanding of AI security risks, secure AI adoption, and output validation.

Preferred Qualifications:

• Experience in a global manufacturing or industrial environment, including OT/IT security considerations.

• Experience with Microsoft security technologies such as Entra ID, Defender, Intune, or Purview.

• Knowledge of cloud security, Zero Trust, vulnerability management, third-party risk, and secure software development practices.

• Scripting and automation experience using PowerShell, Python, REST APIs, or workflow/orchestration platforms.

What Success Looks Like

• Security controls are implemented, documented, monitored, and aligned to business risk.

• New technologies and vendors receive effective security review and risk-based recommendations.

• Vulnerabilities and configuration gaps are prioritized and remediated on time.

• Automation and AI-driven solutions improve consistency, efficiency, and governance.

• Business and technology teams rely on you as a trusted security advisor who delivers practical, scalable solutions.

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