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Job Description

Job Description

At Tlingit Haida Tribal Business Corporation (THTBC), your work goes beyond the job description—it becomes part of a purpose-driven legacy. Our continuous commitment to growth directly contributes to the strength, resilience, and future of the communities we serve. Every milestone we achieve helps fund programs, expand services, and create lasting value for the Tribe, making each success a shared one.

For more than 35 years THTBC and its subsidiaries have delivered mission-critical services to federal clients globally. From logistics and information technology to cybersecurity and facilities operations, we are united by a single purpose: to generate meaningful economic opportunity and sustainable growth for the Tlingit & Haida Tribes of Alaska.

Together We Grow – One Mission, One Team – With a Commitment to Serve

Subsidiary: THTBC
Job Title: ISSM - ATO Program Lead (ECS-MNS)
Job Location: Atlanta, Georgia
Labor Category: Exempt
Clearance Level: N/A
Travel Requirement: Up to 25% of the time
Pay: DOE

Scope of Work:

The ATO Program Lead (Information System Security Manager) provides cybersecurity leadership for the successful authorization, accreditation, and lifecycle management of systems supporting the Emergency Communication System (ECS) and Mass Notification System (MNS) modernization program. The role serves as the primary cybersecurity advisor responsible for Risk Management Framework (RMF) execution, Authority to Operate (ATO) activities, continuous monitoring, and cybersecurity compliance across the program.

Responsibilities:

• Lead all Authority to Operate (ATO) activities throughout the system lifecycle.
• Serve as the Information System Security Manager (ISSM) supporting cybersecurity governance for the program.
• Manage implementation of the NIST Risk Management Framework (RMF) and applicable DoD cybersecurity requirements.
• Coordinate with Government Authorizing Officials (AO), ISSOs, ISSEs, cybersecurity assessors, and program leadership throughout the authorization process.
• Oversee development, review, and maintenance of RMF documentation including System Security Plans (SSPs), POA&Ms, Security Assessment Reports (SARs), Continuous Monitoring Plans, and supporting authorization artifacts.
• Ensure compliance with DoD cybersecurity policies, NIST 800-series publications, DISA STIGs, and applicable federal security requirements.
• Lead vulnerability management activities including remediation planning, risk acceptance, and security compliance reporting.
• Support cybersecurity architecture reviews to ensure security requirements are incorporated into system design and implementation.
• Advise project leadership on cybersecurity risks, mitigation strategies, and authorization status.
• Coordinate security testing, assessment activities, and continuous monitoring efforts.
• Support accreditation of interconnected systems and enterprise network integrations.
• Performs other duties as assigned.

Minimum Requirements:

• 10+ years supporting cybersecurity, information assurance, or federal information systems.
• 5+ years serving as an ISSM, Senior ISSO, Cybersecurity Lead, or equivalent role supporting Authority to Operate (ATO) efforts.
• Experience supporting mission-critical communications, emergency communications, or critical infrastructure systems.
• Demonstrated experience leading RMF packages through the ATO process for DoD or other federal agencies.
• Experience with NIST Risk Management Framework (RMF), NIST SP 800-37, NIST SP 800-53, DISA STIGs, Security Technical Implementation Guides, and continuous monitoring.
• Experience using Enterprise Mission Assurance Support Service (eMASS) or comparable authorization management systems.
• Strong understanding of cybersecurity governance, vulnerability management, system hardening, and risk management.
• Experience coordinating with Government Authorizing Officials (AO), Security Control Assessors (SCA), ISSOs, ISSEs, and Program Managers.
• Excellent written and verbal communication skills with the ability to communicate cybersecurity risks to both technical and executive stakeholders.
• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, Information Systems, or related field; equivalent experience considered.
• Must be able to obtain and maintain required Government security or facility access credentials.
• Proficiency in Microsoft Office Suite (Word, Excel, Outlook); experience with work order systems such as Maximo preferred.
• Must be able to maintain the ability to access the government worksite.
• Must possess and maintain a valid state driver's license and a safe driving record, in accordance with company policy, to operate vehicles or equipment as required for the position.

Preferred Qualifications:

• Experience with Emergency Communication Systems (ECS), Mass Notification Systems (MNS), fire alarm systems, building automation systems, or critical infrastructure modernization.
• Knowledge of NFPA 72, voice evacuation systems, Giant Voice, telecommunications, or enterprise network infrastructure
• Previous experience leading multiple ATOs or enterprise cybersecurity programs.

Physical Demands / Work Environment:

• Primarily office-based with periodic travel to customer and project sites.
• Must be able to conduct field visits, navigate active work environments, and work extended hours as required to support mission needs.
• Must be able to work on-call, alternate, and extended shift schedules when necessary to meet the mission requirements, including weekends and holidays.

Why Us?

At Tlingit Haida Tribal Business Corporation (THTBC), our work goes beyond delivering exceptional services—we are driven by a mission to create meaningful impact. When you join our team, you become part of an organization that values purpose, performance, and people.

We offer the opportunity to work in dynamic, fast-paced environments where your contributions directly impact mission success. Our teams are built on collaboration, accountability, and a commitment to excellence, ensuring you are supported while being challenged to grow.

Join us and be part of a team where your work matters.

Benefits

We offer a comprehensive and flexible benefits package designed to support your health, well-being, and financial security. Benefits include:

• Medical, Dental, and Vision coverage
• TRICARE Supplemental
• Critical Illness insurance
• Company-Paid Life and Short-Term Disability insurance
• Optional Long-Term Disability
• Paid Leave
• 401(k) Retirement Plan
• Identity Theft Protection
• Employee Discounts
• Wellness Seminars

For union represented positions, benefits and leave are provided in accordance with the applicable Collective Bargaining Agreement.

Pre-Employment Screening: All candidates must successfully complete pre-employment screening, which may include a criminal background check, motor vehicle record review, and 5-panel drug screening, in accordance with company policy and applicable laws.

Equal Employment Opportunity: We are proud to be an equal opportunity employer and are committed to full compliance with all applicable federal, state, and local employment laws. We consider all qualified applicants for employment without regard to race, color, religion, creed, national origin, sex, gender identity or expression, age, marital status, sexual orientation, veteran status, disability, pregnancy, parental status, or any other status protected by applicable law.

Reasonable Accommodation: If you have a disability or medical condition and require a reasonable accommodation at any stage of the hiring process, please notify the designated recruiter so we can provide appropriate assistance.