Director of IT & Security

Applicants must be authorized to work in the U.S. without employer sponsorship and be able to obtain a security clearance

Sierra Management and Technologies, Inc. (Sierra), provides unparalleled logistics and program management, cutting-edge software and IT system development, and innovative data science and analytics services to our Department of Defense clients as well as superior support to Government Contracting Facility Security Officers (FSO).

As a disadvantaged, minority-owned, small business, we are committed to exceeding expectations and fostering excellence within our workforce. Sierra has a proud history of hiring veterans and encourages those who have served in the armed forces to apply.

About the Role: 

Sierra Technologies is seeking an experienced Director of IT and Security to manage and secure our IT infrastructure across a hybrid environment. This high-ownership role spans network operations, cloud administration, cybersecurity compliance, audit readiness for active DoD contracts, and FSO/security operations.

This is an on-site position in Southern Maryland (St. Mary’s County), with the option to telework one day per week.

Key Responsibilities:

• Manage hybrid identity infrastructure including Active Directory and Azure AD / Entra ID, supporting 120 users across Microsoft 365 GCC High
• Administer and secure 80 endpoints; oversee patch management, SCAP scanning, and vulnerability remediation
• Manage Fortinet network infrastructure (firewall, switches, APs), VLANs, VPN, and network segmentation
• Operate security tools including threat detection, email filtering, dark web monitoring, and identity/access management
• Maintain CMMC Level 2, NIST SP 800-171, and DFARS compliance; prepare audit documentation including SSP, POA&Ms, and CUI flow diagrams. Plan for and implement CMMC Level 3 compliance
• Support helpdesk operations including onboarding/offboarding, hardware builds, and end-user troubleshooting
• Manage software licensing, vendor relationships, and IT budget planning
• Lead and oversee IT team members, and the Facility Security Officer (FSO) team
• Develop and oversee strategic planning for future IT & Security infrastructure, compliance, and growth
• Oversee facilities systems including VoIP, badge access, and AV infrastructure

What Makes a Successful Candidate: 

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

Must have:

•      10 years of hands-on network and systems administration experience

•      Working knowledge of CMMC Level 2, NIST SP 800-171, and DFARS requirements

•      Proficiency with Active Directory and Azure AD / Entra ID (hybrid environments)

•      Experience administering Microsoft 365 GCC or GCC High environments

•      FortiGate firewall administration and network security management

•      Experience handling Controlled Unclassified Information (CUI)

•      RBAC design, endpoint management (Intune / VSA), and SCAP/STIG compliance

•      VPN configuration, VLAN management, and secure network architecture

•      Experience supervising junior to mid-level IT staff

•      Active security clearance or clearance eligibility.

Applicants must be authorized to work in the U.S. without employer sponsorship and be able to obtain a security clearance

Nice to have:

•      CompTIA Security , CySA , or equivalent certification

•      Microsoft certifications (MS-700, AZ-104, or similar)

•      Prior DoD contractor experience

What to expect in our process

1. Apply by submitting a cover letter and resume for the position 
2. Interview with the Hiring Manager
3. Reference checks and degree verification
4. Offer

We take care of our employees by providing the following benefits: 

• Flexible work schedules and remote/hybrid opportunities (depending on the role)
• Medical, dental, and vision insurance
• Flexible spending account and health savings account options
• Dependent care flexible spending account
• Education reimbursement
• Voluntary insurance such as: short-term disability, hospital indemnity, critical illness, and accident insurance
• 100% company-paid life AD&D and long-term disability insurance
• Generous paid time off policy
• 11 paid holidays
• 401(k) retirement plan with matching contributions
• Employee assistance program

Equal Opportunity Statement

Building an inclusive, high-performing team that is diverse across lines of personal identity is integral to our success, and we are proud to be an equal-opportunity employer.

This means we do not discriminate against any job applicant or employee because of their race, ethnicity, color, religion, national origin, sex, disability status, genetics, protected veteran status, gender identity or expression, sexual orientation, age, or any other characteristic protected by federal, state, or local laws. This applies to all terms and conditions of employment.

E-Verify Statement

This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact the Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the I-9 Form.