Dexcom

Site Security Supervisor

Dexcom$82K — $138K *
Healthcare
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree preferred
  • 5-8 years of industry experience
  • Minimum three years in security personnel oversight
  • Active participation in security communities (i.e., ASIS)
  • Informal management or team lead experience

Responsibilities

  • Oversee daily physical security operations including guard force management and access control oversight.
  • Conduct daily walkthroughs and safety inspections, identifying hazards and coordinating corrective actions.
  • Manage onboarding and offboarding of contracted security staff, ensuring compliance and access provisioning.
  • Lead daily briefings and perform performance spot checks on security staff.
  • Coordinate on-site emergency responses and liaise with law enforcement and emergency services.
  • Support HR investigations by reviewing CCTV, extracting access logs, and documenting incidents.
  • Plan and execute security support for on-site events, ensuring staffing and emergency readiness.
  • Monitor incident trends and compile detailed reports on incidents and corrective actions.

Benefits

  • Comprehensive benefits program
  • Growth opportunities on a global scale
  • Access to career development and tuition reimbursement
  • Participation in an innovative, industry-leading organization
  • Opportunity to learn about life-changing CGM technology and community engagement
Full Job Description
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 onboarding/offboarding 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 best practices and appropriate mitigation strategies.


As a Site Security Supervisor, you lead the day-to-day security operations at your assigned Dexcom facility, ensuring a safe, compliant, and welcoming environment for employees, visitors, and partners. You supervise the contracted guard force, oversee access control and lobby operations, respond to incidents, and work closely with cross-functional teams to support site operations and mitigate risk.

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.


What you'll get:
  • A front row seat to life changing CGM technology. Learn about our brave #dexcomwarriors community.
  • A full and comprehensive benefits program.
  • Growth opportunities on a global scale.
  • Access to career development through in-house learning programs and/or qualified tuition reimbursement.
  • An exciting and innovative, industry-leading organization committed to our employees, customers, and the communities we serve.


Travel Required:
  • 5-15%


Experience and Education Requirements:
  • Typically requires a Bachelor's degree with 5-8 years of industry experience
  • Informal management/ team lead experience


Please note: The information contained herein is not intended to be an all-inclusive list of the duties and responsibilities of the job, nor are they intended to be an all-inclusive list of the skills and abilities required to do the job. Management may, at its discretion, assign or reassign duties and responsibilities to this job at any time. The duties and responsibilities in this job description may be subject to change at any time due to reasonable accommodation or other reasons. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

Salary:
$82,900.00 - $138,100.00

About Dexcom

Dexcom is a medical device company that specializes in continuous glucose monitoring (CGM) systems for people with diabetes. The company was founded in 1999 and is headquartered in San Diego, California. Dexcom's CGM systems provide real-time glucose readings, allowing people with diabetes to better manage their blood sugar levels. The company's products include the Dexcom G6, G5, and G4 systems, as well as the Dexcom Share remote monitoring system. Dexcom has partnerships with several other companies, including Insulet and Tandem Diabetes Care. In 2020, Dexcom was named one of the world's most innovative companies by Fast Company.
Learn more about Dexcom
Size
6,300 employees
Market Cap
$43.2 billion
Industry
Net Income
$493.6 million
Founded
1999
5 Year Trend
+33.7%
Revenue
$1.9 billion
NASDAQ

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