Security Supervisor

Meet the team:

At Dexcom, our Global Security team is redefining what it means to protect a mission-driven organization. We are more than a protective layer; we are embedded partners in innovation, culture, and care. We work shoulder-to-shoulder with teams across the company, utilizing secure-by-design principles, enabling innovation, safeguarding trust, and supporting the people who make life-changing technology possible.

This role isn’t just about security, it’s about leadership, partnership, and impact. You’ll join a team that’s building a modern, proactive security program rooted in strategy, prevention, collaboration, and service. We work cross-functionally, think globally, and act locally. If you’re energized by complexity, thrive in dynamic environments, and want to be part of a team that’s as mission driven as the company it protects, come join us!

Where you come in:

• You oversee daily physical security operations, including guard force management, lobby operations, patrols, and access control oversight.
• You conduct daily walkthroughs and safety inspections across lobbies, parking areas, interiors, exteriors, and high‑risk zones, identifying hazards and coordinating corrective actions with Facilities and EHSS.
• You manage onboard/offboard of contracted security staff, validate training compliance, maintain rosters, and ensure proper access provisioning and deactivation.
• You lead daily or shift‑start briefings, perform spot checks on guard performance, and ensure all posts are staffed and supported with required equipment.
• You coordinate on‑site emergency response, act as the incident lead, and liaise with law enforcement, fire, and EMS when needed.
• You support HR/ER investigations by reviewing CCTV, extracting access logs, building timelines, and documenting incidents while maintaining confidentiality.
• You plan and execute security support for on‑site events, ensuring appropriate staffing, access controls, emergency readiness, and a post‑event debrief.
• You monitor incident trends, maintain logs, and compile weekly, monthly, and quarterly reports on incidents, KPIs, staffing, risks, and corrective actions.
• You continuously review physical security procedures for assigned Dexcom locations to ensure industry’s best practices and appropriate mitigation strategies are utilized.

What makes you successful:

• You bring strong leadership skills and excel at guiding contracted guard staff through clear expectations, coaching, accountability, and daily operational support.
• You have a solid understanding of physical security operations, access control systems, CCTV usage, incident documentation, and compliance standards.
• You communicate effectively across functions, engaging professionally with Facilities, HR, EHSS, IT, site leadership, and external responders.
• You are proactive in identifying risks, analyzing incident trends, and implementing preventive or corrective actions.
• You remain calm during emergencies, make quick decisions, and can confidently lead on‑site response and communication.
• You are detail‑oriented, ensuring accuracy in logs, pass‑downs, training records, badge management, and audit documentation.
• You build strong relationships with vendors, ensuring high performance, adherence to standards, and alignment with Dexcom expectations.
• You thrive in a fast‑paced environment and are comfortable adjusting to evolving staffing, operational, and site needs.
• You should have a minimum of three years of experience overseeing security personnel, contracted guard forces, or comparable frontline operational teams in the private sector.
• You should be an active member of relevant security communities (i.e., ASIS, etc.) to stay current on best practices, emerging threats, and industry standards.