Role Overview
Seneca Holdings is hiring a Senior System Engineer Jobs. This is a full-time role in Arlington. Part of Seneca Holdings's Security hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is 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, visit the website and follow us on LinkedIn .
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.
Great Hill is seeking a Sr. System Engineer in Arlington, VA to support work for the Office of the Under Secretary of War for Research and Engineering. This effort will work with leaders on technology development, strategy and testing.
Security Requirements:
- TS/SCI (SAP eligible)
Skills/Experience:
- Ten (10) years' experience as Chief Systems Engineer (CSE) or Deputy for a major technology program valued at over $100M
- Eight (8) years' of leadership experience on classified programs at SCI or higher.
- Eight (8) years' experience in military tactics and technical methods
- Five (5) years' experience overseeing technical requirements and assessments for new and emerging capabilities
- Five (5) years' experience executing activities in support of the DoD 5000 series acquisition lifecycle process.
- Five (5) years' experience using Agile Development processes.
- Five (5) years' experience establishing and managing a formal risk management process for a technology development program
Education: Master's degree from accredited college or university in engineering, scientific, or technical discipline that is related to PNT and/or C5ISRT.
Desired Skills
- Military or DoW experience
- C5ISRT and C-C5ISRT: Eight (8) years' experience with systems that integrate and analyze data from multiple sources and countering these systems.
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.
Frequently Asked Questions
How do I apply for the Senior System Engineer Jobs position at Seneca Holdings?
Use the Apply button above to submit your application directly to Seneca Holdings. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior System Engineer Jobs position at Seneca Holdings located?
This position is based in Arlington. Seneca Holdings has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior System Engineer Jobs at Seneca Holdings earn?
Seneca Holdings has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior System Engineer Jobs role at Seneca Holdings posted?
This role was posted on April 22, 2026 (47 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior System Engineer Jobs role at Seneca Holdings require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Seneca Holdings lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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