Information Security Manager III

Information Security Manager III
Location: Arlington, VA (On-Site)/ Hybrid
Citizenship: US only
Clearance: Active TS/SCI (DHS EOD Suitability required)
Company: Argo Cyber Systems, LLC - Service-Disabled Veteran-Owned Small Business (SDVOSB)
About Argo Cyber Systems
Argo Cyber Systems provides mission-critical cybersecurity support to U.S. Government agencies and critical infrastructure owners nationwide. Our teams deliver rapid incident response, advanced forensics, and coordinated recovery operations to protect vital systems from evolving cyber threats. We combine technical precision with operational agility-helping federal partners identify, contain, and recover from complex cyber incidents with speed and confidence.
Argo Cyber Systems is seeking an experienced Information Security Manager tthat will be responsible for managing the full Risk Management Framework (RMF) lifecycle for IT systems and ensuring compliance with federal cybersecurity standards. This role provides technical leadership and strategic support to management, coordinating security efforts across projects, guiding risk assessments, and implementing DHS IT security standards. The selected candidate will assist in planning, designing, and advancing a cybersecurity lab's security infrastructure, while leading major technology assignments, supporting ATO processes, and collaborating with ISSMs, CISOs, and senior stakeholders.

Role and Responsibilities
Work as part of a team of Information Assurance professionals to manage the full Risk Management Framework lifecycle for Information Technology systems
Assisting technical/management leadership on major tasks or technology assignments
Establishing goals and plans that meet project objectives
Assisting in direction and control activities, having overall responsibility for security management, methods, and staffing to ensure that technical requirements are met
Participating in client negotiations and interfacing with senior management
Supporting decision making and domain knowledge that may have a critical impact on overall project implementation
Providing support to plan, coordinate, and implement a cybersecurity lab's information security
Providing support for facilitating and helping the lab identify its current security infrastructure and define future programs, design and implementation of security related to lab systems
Assisting the efforts of security staff to design, develop, engineer and implement solutions to security requirements
Implementing and development of the DHS IT security standards
Gathering and organizing technical information about the lab's mission goals and needs, existing security products, and ongoing programs
Performing risk analyses which also includes risk assessment
Planning and leading major technology assignments
Evaluating performance results and recommends major changes affecting short-term project growth and success
Functioning as a cyber technical expert across multiple project assignments
Working closely with ISSM and CISO to respond to Data Calls and satisfy requirements of ATOs

Qualifications, Education and Skills Requirements
U.S. Citizenship is required.
Bachelor's degree with 5+ years of directly relevant experience in information security management
OR High School Diploma and 7+ years of information security management experience.
Hands on experience with Linux operating systems or Amazon Web Services
Experience supporting the NIST Risk Management Framework (RMF) process and contributing to a full ATO effort from initiation through authorization, including development of security documentation, control implementation statements, supporting assessment (audit) activities, and performing full POA&M management
Beginning to end Knowledge of RMF and Assessment and Authorization (A&A) documentation to include SSP, Contingency, Incident & Configuration Mgmt planning and execution
Experience working on multiple complex assignments which are broad in nature, requiring originality and innovation in determining how to accomplish tasks
Ability to apply a comprehensive knowledge across key tasks and high impact assignments
Knowledge of Computer Network Defense (CND) policies, procedures & regulations
Knowledge of defense-in-depth principles and network security architecture
Knowledge of ATO requirements and strong experience with POAMs.
Knowledge and experience with full range of Microsoft Office products (Word, Excel, Powerpoint, and Visio)
Knowledge of boundary protection and network segmentation
Knowledge of authentication and access management techniques
Experience with implementing and assessing security controls for hardware, software, and network deployments
Must be able to work collaboratively with internal and external stakeholders across physical locations

Additional Desires and Considerations
Experience with Risk Management Framework software (CSAM, Xacta, Archer, RegScale)
Experience with host and network scanning software (Nessus, Security Center, Tenable Vulnerability Management, nmap, Wiz, burp)
Experience with Endpoint Protection tools like CrowdStrike or CarbonBlack
Working knowledge of SIEM tools like Splunk, SOAR, or ELK
Familiarity with role-based account processing operations
Familiarity with zero trust architectures
Familiarity with scripting languages (python, AWS CLI, Lambda, bash, powershell)

Desired Certifications:
oDoD 8140.01 IAT Level III
oCISSP
oAWS
oCisco
oMicrosoft

Company Benefits
ARGO Cyber Systems provides industry competitive employee benefits to include medical, dental, vision, life insurance, and 401K.
Argo Cyber Systems is a Federal Contractor and an Equal Opportunity Employer.
Background & Drug Screening Disclaimer

Argo Cyber Systems, LLC - All Rights Reserved

Argo Cyber Systems, LLC is committed to maintaining a safe, secure, and trusted workplace for all employees and our federal clients. Employment with Argo Cyber Systems is contingent upon successful completion of all required background investigations and pre-employment screenings, which may include, but are not limited to:

• Criminal background checks (federal, state, and local)
• Employment and education verification
• Reference checks
• Drug screening (in compliance with federal and state law)
• Security clearance verification (as applicable for classified positions)

Candidates selected for employment in positions requiring access to sensitive or classified information may also be subject to additional U.S. Government background investigations and security adjudication processes, including DHS Entry on Duty (EOD) suitability or equivalent federal clearance requirements.

Argo Cyber Systems reserves the right to disqualify or rescind an offer of employment based on the results of any background or screening process that, in the company's judgment, may impact an individual's ability to perform essential job functions or meet contractual obligations.

All background investigations and screenings are conducted in accordance with applicable federal, state, and local laws, including the Fair Credit Reporting Act (FCRA). Candidates will be notified of their rights and provided an opportunity to review and dispute any adverse findings before final employment determinations are made.