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Salary
≈ $110k – $227k per year (Estimated)
Location
In office (O'Fallon)
Seniority
Staff

Confirmed on the employer's own hiring board on Oct 26, 2026. First seen by Alion on Oct 14, 2026.

Overview
Company
Impact
Profile match
Headquartered in Reston, Virginia, United States, Amyx is a management consulting and information technology solutions provider specializing in cybersecurity, systems engineering, and enterprise program support for the public sector. Founded in 1999 and operating as a subsidiary of Tetra Tech, the company delivers a broad suite of capabilities, including systems engineering and technical assistance (SETA), acquisition management, financial support services, eDiscovery, and agile application development. By pairing defense-grade IT modernization with specialized domain advisory, the enterprise supports critical mission requirements across U.S. federal defense, intelligence, and civilian agencies - such as the Department of Defense, the Defense Health Agency, and the Department of Homeland Security.

Overview

Amyx is seeking to hire a RMF and Cybersecurity Lead to join our Defense client in O'Fallon, IL.

Responsibilities

  • This position will supports RMF compliance, cybersecurity operations, and continuous monitoring.
  • Primary Responsibilities will include:
    • Develops and maintains RMF artifacts (ATO/ATC, POA&Ms).
    • Supports vulnerability management and security audits.
    • Provides cybersecurity reporting and metrics.
  • Must be experience in RMF compliance & documentation: develop/maintain documentation to obtain ATO/ATC; identify evidence/artifacts for A&A packages; manage RMF artifacts (risk acceptance memos, POA&Ms, etc.); update security documentation in eMASS or Government-selected tools; provide A&A metrics.
  • Continuous monitoring & vulnerability management: upload code/security scans/checklists; document AP/CCI mappings; track POA&Ms; audit POA&M items; validate privileged user accounts as needed.
  • Compliance auditing & PPSM: support PPSM registry activities; ensure declared PPSMs follow applicable instructions; support internal/external security audits (including financial/privacy audits).
  • Cybersecurity operations: log analysis; support control audits/assessments; assess security control effectiveness; develop metrics and security posture reporting; support change management review for security impacts.
  • Incident reporting awareness: align reporting actions with DFARS 252.204
  • Must have the ability to communicate accurate information

Qualifications

Desired:

  • Secret Clearance.
  • Must have one CE cert/certificate aligned to OS/tools/devices supported (categories include OS, network support/defense, cloud/virtualization, applications, etc.

Required:

  • Experience supporting USTRANSCOM and working on at USTC.
  • Experience supporting DoD.
  • Demonstrated experience producing recurring cybersecurity deliverables (POA&M status, compliance reports, hygiene/scorecards, risk assessments)
  • Familiarity with NIST 800-171 SSP expectations (contractor System Security Plan requirement).

Benefits include:

  • Medical, Dental, and Vision Plans (PPO & HSA options available)
  • Flexible Spending Accounts (Health Care & Dependent Care FSA)
  • Health Savings Account (HSA)
  • 401(k) with matching contributions
  • Roth
  • Qualified Transportation Expense with matching contributions
  • Short Term Disability
  • Long Term Disability
  • Life and Accidental Death & Dismemberment
  • Basic & Voluntary Life Insurance
  • Wellness Program
  • PTO
  • 11 Holidays
  • Professional Development Reimbursement

Please contact [email protected] with any questions!

Amyx is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sexual orientation, gender identity, status as a protected veteran, or any other characteristic protected by law. Amyx is a VEVRAA federal contractor and we request priority referral of veterans.

Physical Demands Employee needs to be able to sit at a workstation for extended periods; use hand(s) to handle or feel objects, tools, or controls; reach with hands and arms; talk and hear. Most positions require ability to work on desktop or laptop computer for extended periods of time reading, reviewing/analyzing information, and providing recommendations, summaries and/or reports in written format. Must be able to effectively communicate with others verbally and in writing. Employee may be required to occasionally lift and/or move moderate amounts of weight, typically less than 20 pounds. Regular and predictable attendance is essential.

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