Cybersecurity Subject Matter Expert (SME), Level II

About Coleson Corporation

Coleson Corporation is a Woman-Owned Small Business (WOSB) and HUBZone-certified provider of defense-grade cybersecurity, network modernization, and information technology services to the U.S. Department of Defense. We deliver mission-focused technical expertise to federal customers, including major DoD agencies and combatant commands. Our tagline says it plainly: Securing Missions, Empowering Operations.

Position Summary

Coleson is seeking a Cybersecurity Subject Matter Expert (SME), Level II to support a critical Department of Defense (DoD) enterprise cloud security program - a cloud-based managed security service that protects DoD network users through internet isolation technologies. The SME II provides cybersecurity-operations expertise across on-premises and cloud-based infrastructure and services, working directly with government and mission-partner stakeholders to strengthen the enterprise security posture.

Key Responsibilities

• Engage government stakeholders and Defensive Cyber Operations (DCO) teams to prioritize, develop, and implement enterprise cybersecurity strategies and policy enforcement.


• Perform security event-data analysis, correlation, and reporting to support discovery, threat hunting, and incident response.


• Support the design, integration, testing, migration, and accreditation of security solutions within the DoD enterprise architecture.


• Provide real-time technical support to the Network Operations Center (NOC) and coordinate with the government Program Management Office (PMO) and mission partners on critical issues.


• Produce and maintain standard operating procedures (SOPs) and architectural documentation consistent with DoDAF and applicable government standards.

Required Qualifications

• Bachelor's degree in Computer Science or a related field with 5+ years of relevant experience (a Master's or Ph.D. may substitute for experience).


• Active DoD 8570-01-M IAT Level II certification or higher (e.g., Security+, GSEC, SSCP, CISSP, or CCSP).


• Active SECRET clearance (minimum).


• Subject-matter expertise in cybersecurity operations, including Network Boundary teams and Firewall / Secure Web Gateway (SWG) / Web Content Filtering (WCF) technologies.

Preferred Qualifications

• Prior experience supporting DISA or other DoD enterprise security services.


• Familiarity with cloud-based managed security and internet-isolation architectures.


• Residency within a designated HUBZone.

Work Locations, Schedule, and Term

This is a hybrid position requiring on-site presence approximately three (3) days per week at government facilities in Maryland, with minimal travel. The role is full-time and contingent upon subcontract execution, featuring a multi-year period of performance consisting of a base period and several anticipated option years.

To Apply

Qualified candidates should submit a résumé demonstrating the minimum qualifications, current clearance status, and earliest available start date to: [email protected].

As a federal contractor and provider of cleared services to the Department of Defense, Coleson Corporation requires all contingent offers of employment to be subject to the satisfactory completion of a comprehensive background investigation and a pre-employment drug screen. Due to the federal nature of our contracts and the requirement to hold and maintain a U.S. Government security clearance, Coleson Corporation strictly adheres to a drug-free workplace policy in compliance with federal law. This includes a zero-tolerance policy for the use of all federally prohibited substances, including marijuana, regardless of state or local legalization laws. Failure to successfully pass the background investigation or drug screen will result in the immediate rescission of any offer of employment.