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Salary
≈ $33k – $57k per year (Estimated)
Location
In office (Fort Belvoir)
Seniority
Junior · 2+ years exp

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 2, 2026. Seneca Holdings scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Headquartered in Salamanca, New York, Seneca Holdings is the primary investment holding company and economic development arm of the Seneca Nation. Founded in 2009, the enterprise manages a diversified portfolio of businesses spanning federal government contracting (through Seneca Nation Group), environmental solutions, corporate travel management, and sports and entertainment.

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 Solutions is currently seeking an Administrative Assistant in support of a Defense Health client in the DC Metropolitan Area.  The objective is to provide health care support for the Directorate of Surgery Services (DSS) or to the Directorate of Resource Management (DRM). The contractor will work in conjunction with other health care providers, professionals, and noncontract personnel.

Responsibilities include, but are not limited to:

  • Be a point of contact in support of a unit, bureau, section or division, greeting and assisting visitors, as needed. May also be responsible for relieving supervisors or administrative employees of routine administrative work.
  • Utilize word processing software to produce documents and maintain records to provide accurate documentation of work performed or information that can be easily retrieved.
  • Create and maintain complex filing systems or databases with a variety of subject matter to provide easy access to records and information and communicating information to the public to relate departmental policies and procedures using reference materials or personal knowledge.
  • Compose correspondence on routine matters; proofread and edit documents; requisition office supplies; coordinate calendars, establish meeting, facility and travel arrangements; compile information for special projects and collect and assemble data and background materials for a variety of reports.
  • Utilize databases and spreadsheet programs to produce summary reports, and print tables of numerical information; transcribe dictation from tape and produce a typed document; take, prepare and distribute minutes, agendas, packets, and other support materials; schedule meetings and facilities; and may provide functional or full supervision for clerical staff performing routine tasks.

Basic Qualifications and Skills:

  • Active Public Trust Clearance
  • Familiar with Microsoft Word, Excel, Power Point and Outlook.
  • Have organization and time management skills.
  • Exceptional interpersonal and communication skills, as well as the ability to display great tact and diplomacy both in person and on the telephone.
  • Qualified typing ability (at least 40 wpm).
  • Knowledge of military ranks and procedures.
  • Basic understanding of HIPAA regulations.
  • Ability to produce reports, business correspondence, and briefs.
  • Must possess ability to pass security clearance or have a current National Agency Check with Local Agency Check and Credit Check (NACLC).
  • The work is primarily sedentary. However, there may be some physical demands. Requirements include prolonged walking, standing, sitting or bending, and preparation of conference rooms for meetings.
  • Ability to work independently as well as collaboratively.
  • The Contractor is required to be on-site.
  • Must be a U.S. Citizen.

Required Experience:

  • High School diploma or General Educational Development (GED) equivalency.
  • Minimum of 2 years of progressively responsible administrative or office support experience.
  • Experience providing administrative support in a healthcare, military, federal government, or similarly structured professional environment; DHA/DoD experience preferred. 
  • Experience using Microsoft Office 365, including Outlook, Word, Excel, PowerPoint, Teams, and SharePoint. 
  • Experience managing calendars, meetings, appointments, conference calls, and organizational schedules. 
  • Experience preparing, formatting, reviewing, routing, and tracking correspondence, memorandums, reports, presentations, meeting minutes, and other administrative documents. 
  • Experience maintaining electronic records, files, spreadsheets, databases, administrative trackers, and suspense/action-item logs. 
  • Experience coordinating and tracking administrative actions and suspense requirements to ensure timely completion. 
  • Experience providing professional customer service and front-office support to senior leadership, staff, customers, and external stakeholders. 
  • Experience handling sensitive and confidential information, including PII and other controlled information. 
  • Experience coordinating meeting agendas, read-ahead materials, meeting minutes, and follow-up action items. 
  • Experience supporting personnel onboarding/offboarding, training documentation, access requests, organizational rosters, and other workforce administrative requirements. 
  • Demonstrated ability to prioritize multiple tasks and meet deadlines in a fast-paced environment with minimal supervision. 
  • Demonstrated ability to communicate effectively, both verbally and in writing, with military, civilian, contractor, and healthcare personnel. 
  • Experience working with DoD/DHA correspondence, directives, forms, and records management processes is highly desired.

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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