Full-Time

Administrative Support Specialist

Updated on 9/3/2026

Prosidian Consulting

Prosidian Consulting

11-50 employees

Management and operations consulting firm

No salary listed

No H1B Sponsorship

Box Elder, SD, USA

In Person

Travel may be required when coordinated and approved in advance.

US Citizenship Required

Category
Administrative & Executive Assistance (1)
Required Skills
Microsoft Office
Visio
Word/Pages/Docs
Data Analysis
Excel/Numbers/Sheets
PowerPoint/Keynote/Slides

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Requirements
  • Consecutive employment in a position with comparable responsibilities within the past five years.
  • Ability to use a computer to communicate via email.
  • Proficiency with Microsoft Office products and related tools and technology.
  • A minimum of one year of supervisory experience.
  • Strong oral communication and writing skills.
  • Ability to work as part of a team.
  • U.S. citizenship.
  • Eligibility for a Facility Access Authorization, also referred to as an Employment Authorization, from the U.S. Government’s designated Security Office.
  • Proficiency with Microsoft Office products, including Microsoft Word, Excel, PowerPoint, Publisher, and Adobe.
  • Ability to produce thorough, accurate, appropriately documented work that complies with established criteria and meets milestones and delivery schedules.
Responsibilities
  • Operate office equipment, including fax machines, copiers, phone systems, and computers for spreadsheets, word processing, database management, and other applications.
  • Prepare and use memorandums in accordance with AFH 33-337, The Tongue and Quill, and local guidelines.
  • Design communication plans to publicize unit program requirements, policies, and procedures.
  • Prepare reports, memos, letters, forms, briefings, and other documents using word processing, Excel, Access, and presentation software.
  • Answer phones, provide information to callers, take messages, and forward calls to appropriate individuals.
  • Greet visitors and callers, handle their inquiries, and direct them to appropriate personnel or offices.
  • Establish and maintain paper and electronic filing systems for records, correspondence, and other materials.
  • Open, read, route, and distribute incoming correspondence and other materials, and prepare responses to routine letters.
  • Compose, type, and distribute notes, routine correspondence, and reports.
  • Establish controls and suspenses, and follow up to ensure required actions and responses are completed within deadlines.
  • Establish, maintain, control, and update file systems accurately to enable quick and efficient retrieval of information.
  • Provide administrative support services to the contract team, including the Program Security Manager, Personnel Security Specialist, and Physical Security Specialist.
  • Manage all administrative aspects of the contract team as Team Lead.
Desired Qualifications
  • Executive-level administrative support experience is strongly preferred.
  • Administrative support experience for military offices is strongly preferred.

ProSidian Consulting provides management and operations consulting to private companies, Fortune 1000 enterprises, and government agencies. It uses industry-aligned services across six practice areas: Risk Management, Energy & Sustainability, Compliance, Business Process, IT Effectiveness, and Human Capital, delivered by multidisciplinary teams. The firm connects strategy to execution with On-Demand Resources and targets drivers of economic profit—growth, margin, and efficiency—across assets, processes, policies, and people. Its goal is to help leaders design and execute operations that increase value for customers and improve return on invested capital.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

Charlotte, North Carolina

Founded

2008

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Simplify Jobs

Simplify's Take

What believers are saying

  • ProSidian posted multiple NSF HR analytics roles in April 2026.
  • June 2026 contract data shows $4.0M obligated across repeat federal buyers.
  • GSA MAS validity through 2032 supports continued federal selling capacity.

What critics are saying

  • PrimeRFP shows 41% of obligations came from NSF in June 2026.
  • Eighty percent of obligations were not openly competed, risking renewal shocks.
  • Without new federal recompetes, the firm risks collapse from contract loss.

What makes Prosidian Consulting unique

  • ProSidian held a GSA MAS contract through May 17, 2032.
  • ProSidian sells federal consulting across NSF, DoD, DOE, and Treasury.
  • ProSidian positions itself in human capital, compliance, energy, and risk work.

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Benefits

Remote Work Options