Senior PSIRT Engineer

Product Security Incident Engineer

Austin, TX

As a Product Security Incident Engineer, you will play a pivotal role in safeguarding Silicon Labs’ connected device ecosystem. You will be responsible for identifying, triaging, and supporting resolution of product-related security incidents. Your contributions will shape the trust our customers place in our products and the resilience of our platforms.

You’ll collaborate across engineering, applications, and security teams to ensure vulnerabilities are swiftly understood, validated, and addressed in accordance with industry standards and regulatory expectations. Your work directly supports our Product Security Incident Response Team (PSIRT) mission: protecting our products and customers through timely and transparent action.

Meet the Team

Join Silicon Labs’ Product Security Incident Response Team (PSIRT) — a dynamic group of engineers and security professionals focused on product resilience. We work collaboratively across Security Engineering, Applications, and Product Development to address vulnerabilities and strengthen security. The team values curiosity, accountability, and continuous learning, with regular knowledge-sharing sessions and opportunities to grow your skills while making a meaningful impact

Responsibilities

• Independently manage the triage and validation process of reported product security incidents.
• Investigate, assess, and coordinate incoming security incident reports, ensuring appropriate engineering team engagement.
• Generate and manage PSIRT JIRA tickets for validated vulnerabilities.
• Assign CVSS ratings and ensure risk is appropriately documented and communicated.
• Collaborate closely with Applications Engineering to prioritize vulnerabilities and support customer-facing disclosures.
• Draft and submit vulnerability details for CVEs to MITRE/ENISA as required by global security guidelines.
• Maintain a comprehensive log of Silicon Labs’ CVEs and coordinate internal/external disclosures.
• Monitor relevant external CVE sources (e.g., MITRE, NIST, ENISA) for issues potentially impacting Silicon Labs’ portfolio.
• Recommend corrective actions and drive process improvements in collaboration with Security Engineering.
• Support fix validation through lab-based or theoretical analysis with engineering teams.
• Escalate critical issues and support performance tracking using key PSIRT metrics.
• Document root causes using established cause codes and close out incident tickets appropriately.
• Contribute to security documentation updates and support training initiatives driven by PSIRT findings.
• Advocate for secure design and risk awareness across all product lines.
• Demonstrate ownership, flexibility, and a team-oriented mindset in a fast-paced environment.

Required Qualifications & Skills

• Bachelor’s degree in Computer Engineering, Systems Engineering, Electrical Engineering, or a related field.
• 5+ years of experience in security incident investigation and vulnerability management across hardware/software systems.
• Demonstrated experience working in or with a PSIRT, or similar security incident response teams.
• Strong debugging skills and comfort with tools for both hardware and software troubleshooting.
• Proficiency in programming or scripting (e.g., Python, Bash, or C/C++) for triage and automation tasks.
• Familiarity with various wireless protocols (e.g. Wi-Fi, Z-Wave, Zigbee, Bluetooth, etc.)
• Knowledge of incident response frameworks such as NIST SP 800-61, FIRST, or related methodologies.
• Excellent communication skills, with the ability to prepare technical summaries, reports, and presentations for varied audiences.
• A passion for learning, improving processes, and building secure, reliable technologies.