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Sr. Cyber Security Engineer

Seneca Holdings
401(k)
United States, Virginia, Chantilly
14200 Park Meadow Drive (Show on map)
Jun 08, 2026

Seneca Technologies is part of the Seneca Nation Group (SNG) portfolio of companies. SNGis Seneca Holdings' federal government contracting business that meets mission-critical needs of federal civilian, defense, and intelligence community customers. Our portfolio comprises multiple subsidiaries that participate in the Small Business Administration 8(a) program. To learn more about SNG, visitthe website and follow us onLinkedIn.

Our team of talented individuals is what makes us successful. To support our team, we provide a balanced mix of benefits and programs.Your total rewards package includes competitive pay, benefits, and perks, flexible work-life balance, professional development opportunities, and performance and recognition programs. We offer a comprehensive benefits package that includes medical, dental, vision, life, and disability, voluntary benefit programs (critical illness, hospital, and accident), health savings and flexible spending accounts, and retirement 401K plan. One of our fundamental principles is to offer competitive health and welfare benefits to our team members, providing coverage and care for you and your family. Full-time employees working at least 30 hours a week on a regular basis are eligible to participate in our benefits and paid leave programs. We pride ourselves on our collaborative work environment and culture, which embraces our mission of providing financial and non-financial benefits back to the members of the Seneca Nation.

Seneca Technologies is hiring for a Senior Cyber Security Engineer to join our team in Chantilly, VA. This team member will work to engineer, design, and sustain Comply-to-Connect (C2C) deployment support to migrate and maintain critical services across unclassified and classified environments.

Responsibilities include but are not limited to:
*Engineering, designing, and implementing C2C deployment support while managing the appliances, servers, and supporting infrastructure.
*Coordinating with the network service provider to develop and maintain comprehensive network architecture diagrams.
*Evaluating and recommending technology upgrades to address performance, standardization, and industry best practices.
*Monitoring and investigating C2C performance and faults to recommend and institute required updates and changes.
*Interacting with team members and customers at multiple levels to gather and coordinate vital technical information.
*Supporting A&A activities related to cybersecurity technologies and system accreditation.

Minimum Qualifications:
*Bachelor's degree in information technology or related field (or 4+ years of additional experience in lieu of a degree)
*5+ years of experience in Information Systems, Information Security and/or Cyber Engineering.
*Hands on experience with technologies involved in large-scale enterprise deployments and data center environments.
*Experience deploying enterprise security software products including but not limited to firewalls, IPS, Anti-Virus, and network management systems.
*Knowledge of Windows and Linux systems, TCP/IP networking, 802.1x, and general network security concepts.
*IAT Level II (GSEC, Security+, SSCP, or CCNA-Security) certification (or the ability to obtain it within 6 months of hire)

Preferred Qualifications:
*Certified Information Systems Security Professional (CISSP) certification.
*Experience implementing vendor-agnostic C2C capabilities and services within DoD engineering and sustainment environments.
*Proficiency with Cisco Identity Services Engine (ISE) and tools such as Nmap and Nessus
*Knowledge of Shell, Perl, and XML Scripting to automate security tasks.

Clearance Requirements:
*An active TS/SCI with Polygraph.

Physical Requirements:
*Must be able to remain in a stationary position 50%.
*Needs to occasionally move about inside the office to access file cabinets and office machinery.

Equal Opportunity Statement:
Seneca Holdings provides equal employment opportunities to all employees and applicants without regard to race, color, religion, sex/gender, sexual orientation, national origin, age, disability, marital status, genetic information and/or predisposing genetic characteristics, victim of domestic violence status, veteran status, or other protected class status. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leave of absence, compensation and training. The Company also prohibits retaliation against any employee who exercises his or her rights under applicable anti-discrimination laws. Notwithstanding the foregoing, the Company does give hiring preference to Seneca or Native individuals. Veterans with expertise in these areas are highly encouraged to apply.

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