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Site Security Manager - Critical Environments

JLL
parental leave, paid time off, 401(k)
United States, Texas, Colorado City
Jun 06, 2026

JLL empowers you to shape a brighter way.

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented peopleand empowering them tothrive, grow meaningful careers and to find a place where they belong. Whether you've got deep experience in commercial real estate, skilled trades or technology, or you're looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward.

We support your move! Relocation financial assistance provided to eligible candidates relocating to Colorado City, TX - subject to company terms.

What this job involves: The Site Security Manager is the on-site leader of the physical security program at Barber Lake, reporting to the Director of Physical Security Operations. This hands-on leadership role owns the development, execution, and oversight of all site security operations-24/7/365-from guard force coordination and SOP enforcement to compliance with lease and customer contractual requirements. You will serve as the primary on-site point of contact for the customer's security organization, manage the contracted guard force vendor through the Guard Force Account Manager, and ensure every operational element-visitor processing, government official protocol, incident response-is executed in full alignment with lease obligations and Cipher Digital security standards. This role requires daily movement across the site, partnering with the Site Operations Director, Security Technology team, Compliance & Audit team, and customer security stakeholders to solve problems and ensure nothing falls through the cracks.

What your day-to-day will look like:
  • Lead all on-site physical security operations, translating lease and customer contractual security requirements into operational reality while ensuring every SLA, control, and obligation is met
  • Manage the contracted guard force vendor relationship through the on-site Guard Force Account Manager by setting performance expectations, KPIs, and quality standards, and conducting routine post inspections, shift observations, and SOP audits
  • Serve as the primary on-site point of contact for customer security stakeholders, leading security walkthroughs, audits, joint operational reviews, and preparing Monthly and Quarterly Business Review (MBR/QBR) content
  • Oversee the end-to-end visitor management process and conduct access reviews of all personnel with site or Tenant Space access, ensuring all access provisioning meets contractual SLAs
  • Lead on-site response coordination for all security incidents and emergencies, ensuring incident notification within the contractual 4-hour SLA and delivering formal written incident reports within 72 hours
  • Develop, implement, and continuously improve site-specific Standard Operating Procedures (SOPs) covering visitor management, access control, emergency access, government official protocol, and incident response
  • Partner with the Security Systems team on system design, deployment, and commissioning, and oversee day-to-day operational use of access control, CCTV/VMS, visitor management, and SOC platforms
Required Qualifications:
  • Minimum of 5 years of progressive experience in security operations management, preferably in a data center, critical infrastructure, or high-security commercial environment
  • Demonstrated experience managing contracted guard force vendors (Securitas, Allied Universal, or equivalent)
  • Experience operating security programs in dynamic environments such as active construction, customer move-in, multi-tenant facilities, or 24/7 operations
  • Track record of building and managing customer-facing security programs with formal SLAs and contractual obligations
  • Proficiency with security reporting tools, ticketing platforms (ServiceNow), and standard productivity software
  • Working knowledge of access control systems (Genetec or equivalent) and CCTV/VMS platforms
  • Ability to physically stand, walk, climb stairs and ladders, and occasionally lift and/or move up to 25 pounds, with capability to walk extended distances on the data center campus and respond rapidly to incidents on foot
Preferred Qualifications:
  • Strong organizational, time management, and prioritization skills with ability to operate calmly under operational pressure and competing priorities
  • Excellent communication and presentation abilities, comfortable presenting to executive leadership and customer stakeholders
  • Solid troubleshooting skills for operational problems and basic security equipment
  • Detail-oriented with capability to manage multiple workstreams simultaneously
  • Initiative-driven, results-focused, and accountable with strong interpersonal skills and ability to build trust with customers, vendors, and direct reports

Work Shift: Monday-Friday, 40 hours per week, with on-call availability for after-hours incidents and emergencies
Travel: Minimal (under 5%), may increase periodically as the business evolves

#DCR

This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.

Location:

On-site -Colorado City, TX

If this job description resonates with you, we encourage you to apply, even if you don't meet all the requirements. We're interested in getting to know you and what you bring to the table!

Personalized benefits that support personal well-being and growth:

JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits may include:

  • 401(k) plan with matching company contributions

  • Comprehensive Medical, Dental & Vision Care

  • Paid parental leave at 100% of salary

  • Paid Time Off and Company Holidays

  • Early access to earned wages through Daily Pay

At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you'repursuing.

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For more information about how JLL processes your personal data, please view our Candidate Privacy Statement.

For additional details please see our career site pages for each country.

For candidates in the United States, please see a full copy of our Equal Employment Opportunity policy here.

Jones Lang LaSalle ("JLL") is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process - including the online application and/or overall selection process - you may email us at HRSCLeaves@jll.com. This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL.

Accepting applications on an ongoing basis until candidate identified.

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