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Defense Career Resources

Everything you need to know about defense industry careers in Huntsville. Clearance levels, salary data, top contractors, and essential terminology.

Security Clearance Levels

Understanding the different levels and what they mean

Public Trust2-6 months
Entry-level investigation for sensitive but unclassified positions
Access Level:

Sensitive but Unclassified (SBU) information

Typically Sponsored By:

Any federal contractor or agency

Notes:

Not technically a "clearance" but often required for government work

Secret3-6 months
Mid-level clearance for classified information
Access Level:

Confidential and Secret classified information

Typically Sponsored By:

DoD contractors, federal agencies

Notes:

Most common clearance level in defense industry

Top Secret6-12 months
High-level clearance for sensitive classified information
Access Level:

All levels up to Top Secret

Typically Sponsored By:

DoD, Intelligence Community contractors

Notes:

Requires Single Scope Background Investigation (SSBI)

TS/SCI8-15 months
Top Secret with Sensitive Compartmented Information access
Access Level:

Compartmented intelligence programs

Typically Sponsored By:

Intelligence agencies, select DoD programs

Notes:

SCI is an access, not a clearance level. Requires additional indoctrination.

TS/SCI with Poly12-18 months
Top Secret/SCI with polygraph examination
Access Level:

Most sensitive programs

Typically Sponsored By:

CIA, NSA, NRO, and select contractors

Notes:

CI Poly (counterintelligence) or Full Scope/Lifestyle Poly

Important Notes

  • • You cannot apply for a clearance yourself - an employer must sponsor you
  • • Clearances are granted by the government, not the employer
  • • Investigation timelines vary significantly based on workload and complexity
  • • Having a clearance from one agency may transfer to another, but SCI access does not

Huntsville Salary Ranges

Estimated salary ranges by role and clearance level (2024)

RoleNo ClearanceSecretTop SecretTS/SCI
Software Engineer$85K-$120K$95K-$135K$110K-$160K$125K-$180K
Systems Engineer$80K-$115K$90K-$130K$105K-$155K$120K-$175K
Cybersecurity Analyst$75K-$110K$85K-$125K$100K-$150K$115K-$170K
Program Manager$95K-$140K$105K-$155K$120K-$180K$135K-$200K
Intelligence AnalystN/A$70K-$95K$85K-$120K$100K-$145K
Data Scientist$90K-$130K$100K-$145K$115K-$165K$130K-$190K
Test Engineer$70K-$100K$80K-$115K$95K-$135K$105K-$150K
RF Engineer$85K-$120K$95K-$140K$110K-$160K$125K-$180K

Ranges based on Huntsville market data for mid-level positions. Senior roles and specialized skills can exceed these ranges significantly. Cost of living in Huntsville is approximately 15-20% lower than DC metro area.

Top Defense Contractors in Huntsville

Major employers in the Huntsville defense market

Northrop Grumman

Focus Areas: Missile Defense, Space Systems

Local Employees: 5,000+

Lockheed Martin

Focus Areas: Missiles & Fire Control, Rotary & Mission Systems

Local Employees: 4,500+

Boeing

Focus Areas: Space Launch System, Defense Systems

Local Employees: 3,000+

Raytheon Technologies

Focus Areas: Missile Systems, Intelligence & Space

Local Employees: 2,500+

BAE Systems

Focus Areas: Electronic Systems, Intelligence

Local Employees: 1,500+

SAIC

Focus Areas: IT Services, Engineering Services

Local Employees: 2,000+

Leidos

Focus Areas: Defense Solutions, IT Modernization

Local Employees: 1,800+

General Dynamics

Focus Areas: C4ISR, Information Technology

Local Employees: 1,200+

L3Harris Technologies

Focus Areas: Communications, Electronic Warfare

Local Employees: 1,500+

Dynetics (Leidos)

Focus Areas: Space, Missiles, Intelligence

Local Employees: 2,500+

Defense Industry Acronym Decoder

50+ essential terms explained

SSBI - Single Scope Background Investigation
SCI - Sensitive Compartmented Information
SAP - Special Access Program
DCSA - Defense Counterintelligence and Security Agency
SF-86 - Standard Form 86 (Security Questionnaire)
OPSEC - Operations Security
COMSEC - Communications Security
INFOSEC - Information Security
ITAR - International Traffic in Arms Regulations
EAR - Export Administration Regulations
DFARS - Defense Federal Acquisition Regulation Supplement
FAR - Federal Acquisition Regulation
NIST - National Institute of Standards and Technology
CMMC - Cybersecurity Maturity Model Certification
FedRAMP - Federal Risk and Authorization Management Program
FISMA - Federal Information Security Management Act
RMF - Risk Management Framework
STIG - Security Technical Implementation Guide
CUI - Controlled Unclassified Information
DoD - Department of Defense
MDA - Missile Defense Agency
SMDC - Space and Missile Defense Command
PEO - Program Executive Office
AMCOM - Aviation and Missile Command
NASA - National Aeronautics and Space Administration
DARPA - Defense Advanced Research Projects Agency
NRO - National Reconnaissance Office
NGA - National Geospatial-Intelligence Agency
DIA - Defense Intelligence Agency
C4ISR - Command, Control, Communications, Computers, Intelligence, Surveillance, Reconnaissance
SATCOM - Satellite Communications
EW - Electronic Warfare
SIGINT - Signals Intelligence
GEOINT - Geospatial Intelligence
MASINT - Measurement and Signature Intelligence
HUMINT - Human Intelligence
UAS - Unmanned Aircraft System
BMD - Ballistic Missile Defense
THAAD - Terminal High Altitude Area Defense
GMD - Ground-based Midcourse Defense
SETR - Systems Engineering Technical Review
CDR - Critical Design Review
PDR - Preliminary Design Review
SRR - System Requirements Review
V&V - Verification and Validation
IV&V - Independent Verification and Validation
EVM - Earned Value Management
IPT - Integrated Product Team
CDRL - Contract Data Requirements List
SOW - Statement of Work

Resume Keywords by Specialty

Key terms to include in your resume for each field

Software Engineering
Agile/ScrumDevSecOpsCI/CDGit/GitLabC++PythonJavaEmbedded SystemsReal-TimeLinuxRTOSDO-178CMISRA
Systems Engineering
Requirements AnalysisMBSESysMLDoDAFV&VDOORSTrade StudiesSystems IntegrationLifecycleMIL-STD
Cybersecurity
RMFNIST 800-53STIGSCAPVulnerability AssessmentPenetration TestingCISSPSecurity+CMMCZero Trust
Program Management
PMPEVMIPMEVMSFAR/DFARSCost/ScheduleRisk ManagementGovernment ContractsACATMilestone Reviews
Intelligence
All-SourceGEOINTSIGINTAnalysisCollection ManagementTargetingIntelligence CycleBriefingsAssessments

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