Sr. Manager, Vulnerability Management and Security Operations

SiTime Corporation•Santa Clara, CA

10d

About The Position

Reporting to the CISO, this role leads SiTime's Vulnerability Management and Security Operations function. It owns detection and monitoring, the 24x7 managed detection and response relationship, risk-based vulnerability operations, incident response and ransomware readiness — the detect and respond pillar of the security organization. This is a build role. The candidate will mature and scale the SIEM and log coverage standard, select and operate the MDR partner, establish vulnerability remediation service levels that are enforced rather than reported, and take the incident response and ransomware playbooks from draft to rehearsed. It is also a people-leadership role. The candidate starts hands-on, then scales the function through a mix of full-time hires, managed service capacity and specialist contractors engaged for surge and testing cycles. This is an accountable owner role, not an advisory one. The role is the operational arm of the CISO's office: it detects, triages and contains, and it drives remediation to closure with IT, Engineering and system owners — partnering cross-functionally with the CISO's other functions (Security Risk, Assurance and Trust; Security Engineering; Security Architecture; and Offensive Security) to improve the company's overall security posture. We value diverse experiences, perspectives, and career paths, and welcome candidates who are excited to contribute to our mission.

Requirements

8+ years in security operations, detection and response, or vulnerability management, including 3+ years building or substantially rebuilding a function.
Bachelor's degree in Computer Science, Information Security, Engineering, or a related technical field — or equivalent practical experience.
At least one of the following certifications: CISSP, GCIA, GCIH, GCFA, or equivalent.
People leadership experience.
Hands-on experience deploying and operating a modern SIEM, Microsoft Sentinel strongly preferred, including log onboarding, detection engineering and cost control.
Experience managing an MDR or MSSP relationship, including service level definition, escalation design and quality review.
Demonstrated ownership of a risk-based vulnerability management program with enforced remediation service levels.
Experience leading security incidents end to end, including ransomware scenarios, and designing and running tabletop exercises.
Technical fluency across cloud platforms (Azure, AWS), endpoint, network and identity telemetry.
English proficiency is required, including the ability to effectively communicate, collaborate, and perform job responsibilities in a professional business environment.

Nice To Haves

Experience in a semiconductor, hardware, or other fabless/manufacturing environment, or another regulated hardware/OT-adjacent industry.
Hands-on experience with industry leading security tools and scanner
Experience monitoring engineering, design and laboratory environments, including intellectual property exfiltration scenarios.
Strong executive presence and stakeholder management: able to translate complex technical security concepts into business-friendly, risk-oriented language and influence decision-making across functions without direct authority.
Program management rigor with ablity to run multiple concurrent cross-functional initiatives to completion, not just track them.

Responsibilities

Own SEIM end to end: design, deployment, priority log onboarding, detection content, tuning, and ongoing cost management.
Own and enforce a log coverage standard spanning cloud, SaaS, endpoint, network, application and laboratory environments, and close the gaps where coverage does not exist today.
Manage the 24x7 MDR provider. Own the service levels, the escalation path into SiTime, the quality review cycle and the operating rhythm.
Build detection use cases aligned to the threats that matter to a fabless semiconductor company, including unauthorized access to and bulk movement of design data and source code.
Establish alert triage, case management and hand-off workflow between the MDR provider and SiTime Security; measure and drive down time to acknowledge and time to contain.
Set log retention standards sufficient to support forensic investigation, legal hold and customer or regulatory inquiry.
Partner with Security Engineering on the coverage, configuration health and alert quality of CrowdStrike, Darktrace, Microsoft Defender and future sensors.
Design and operate a risk-based vulnerability management program across endpoints, servers, cloud workloads, SaaS, network devices and laboratory systems.
Define remediation service levels by severity and asset criticality, and drive closure with IT, Engineering and system owners rather than reporting on open counts.
Own attack surface and external exposure monitoring of internet-facing assets, and reduce the exposed footprint over time.
Operate exception handling with risk-based approval, compensating controls and time-boxed expiry, in partnership with the Security Risk, Assurance and Trust function.
Produce vulnerability, coverage and aging metrics that demonstrate risk reduction rather than scan activity.
Feed vulnerability and exposure signal into the enterprise risk register so it shapes company-wide prioritization.
Own the incident response and ransomware playbooks, and keep them approved, socialized and exercised.
Deploy and operate paging, the on-call rotation and escalation, and make sure a real person is reachable at any hour.
Manage the external incident response and digital forensics retainer, and keep the partner current on the SiTime environment.
Plan and run ransomware and crisis tabletop exercises for both executive and technical audiences, and track every resulting action to closure with evidence.
Act as incident commander for security incidents: run the bridge, set the status cadence, and produce the executive reporting.
Partner with Legal, Communications, Finance and Insurance on notification obligations, crisis communications and claims.
Run post-incident reviews and feed the findings back into detection content, controls and the security roadmap.