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Leffler Consulting
Leffler Consulting
Related Locations:
Gaithersburg, MD
Washington, DC
Fairfax, VA
Arlington, VA
Chantilly, VA
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Top Occupations:
Budget Analysts
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Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
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Project Management Specialists
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Administrative Management and General Management Consulting Services
Space Research and Technology
National Security
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48
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at
Leffler Consulting
in last 30 days
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Last 30 days
Ground Systems Integration Engineer - CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L7 Manager
August 7th, 2026
Computer Systems Analysts
Space Research and Technology
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Technical Information Management/Web Manager - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 4th, 2026
Management Analysts
Computer Systems Design Services
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Senior Administrative Assistant - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 4th, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Administrative Management and General Management Consulting Services
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Senior Audit Manager -TS/SCI Clearance required
APPLY
Leffler Consulting
Fairfax, VA
L6 Lead
August 4th, 2026
Accountants and Auditors
Administrative Management and General Management Consulting Services
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Senior Program Analyst – TS/SCI Clearance
APPLY
Leffler Consulting
Washington, DC
L6 Lead
August 4th, 2026
Management Analysts
Administrative Management and General Management Consulting Services
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Schedule Analyst SME – TS/SCI Clearance w/CI Poly
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 4th, 2026
Project Management Specialists
Other Scientific and Technical Consulting Services
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Resource Analyst - TS/SCI Clearance with CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 11th, 2026
Management Analysts
Administrative Management and General Management Consulting Services
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Contract Support Assistant (CSA) - TS/SCI with Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L3 Junior
August 11th, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Administrative Management and General Management Consulting Services
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Contract Support Assistant - TS/SCI Clearance with CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L3 Junior
August 9th, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Other Scientific and Technical Consulting Services
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Schedule Analyst - TSSCI clearance
APPLY
Leffler Consulting
Gaithersburg, MD
L4 Mid
August 9th, 2026
Management Analysts
Other Scientific and Technical Consulting Services
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Cost Analyst/Estimator – TS/SCI Clearance w/CI Poly
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 10th, 2026
Cost Estimators
Other Scientific and Technical Consulting Services
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Budget Analyst - TS/SCI clearance required
APPLY
Leffler Consulting
Honolulu, HI
L5 Senior
August 6th, 2026
Budget Analysts
National Security
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Senior Acquisition Support Advisor - TS/SCI with CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 6th, 2026
Purchasing Agents, Except Wholesale, Retail, and Farm Products
Other Scientific and Technical Consulting Services
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Budget Analyst - TS/SCI with CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 6th, 2026
Budget Analysts
Other General Government Support
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Space Systems Engineer
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 6th, 2026
Aerospace Engineers
Space Research and Technology
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Senior System Administrator - TS/SCI Clearance required
APPLY
Leffler Consulting
Washington, DC
L5 Senior
August 6th, 2026
Network and Computer Systems Administrators
Computer Systems Design Services
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Ground Network Systems Engineer – TS/SCI Clearance w/CI Poly
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 4th, 2026
Computer Systems Engineers/Architects
Computer Systems Design Services
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Spacecraft Payload Engineer - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 28th, 2026
Aerospace Engineers
Space Research and Technology
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Acquisition Support Engineer - CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 28th, 2026
Purchasing Agents, Except Wholesale, Retail, and Farm Products
Engineering Services
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Budget Analyst - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 28th, 2026
Budget Analysts
Other General Government Support
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Senior Program Control Analyst – TS/SCI Clearance w/CI Poly
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 29th, 2026
Budget Analysts
Administrative Management and General Management Consulting Services
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EVM Analyst - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 9th, 2026
Management Analysts
Other Scientific and Technical Consulting Services
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Senior Budget Analyst - CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 9th, 2026
Budget Analysts
Other General Government Support
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FIAR Consultant - Secret Clearance
APPLY
Leffler Consulting
Chantilly, VA
L6 Lead
August 9th, 2026
Accountants and Auditors
Other Management Consulting Services
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Senior Tableau Developer - TS/SCI Clearance with CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 9th, 2026
Business Intelligence Analysts
Other Scientific and Technical Consulting Services
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Administrative Assistant - TS/SCI with CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L3 Junior
August 11th, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Administrative Management and General Management Consulting Services
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Administrative Assistant/Legal Secretary
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Leffler Consulting
Gaithersburg, MD
L3 Junior
August 22nd, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Other Scientific and Technical Consulting Services
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Staff Accountant - Secret Clearance required
APPLY
Leffler Consulting
Washington, DC
L6 Lead
August 22nd, 2026
Accountants and Auditors
National Security
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Spacecraft Attitude Control Systems Engineer – TS/SCI Clearance w/CI Poly
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 5th, 2026
Aerospace Engineers
Space Research and Technology
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Acquisition Support Engineer – TS/SCI Clearance w/CI Poly
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 5th, 2026
Purchasing Agents, Except Wholesale, Retail, and Farm Products
Engineering Services
Show all >
Senior Audit Manager - TS/SCI REQUIRED
APPLY
Leffler Consulting
Fairfax, VA
L6 Lead
August 6th, 2026
Accountants and Auditors
Administrative Management and General Management Consulting Services
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Senior Budget Analyst - TSSCI Required
APPLY
Leffler Consulting
Arlington, VA
L5 Senior
August 6th, 2026
Budget Analysts
National Security
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Spacecraft Ground Systems Engineer - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 6th, 2026
Project Management Specialists
Space Research and Technology
Show all >
Budget Analyst - TS/SCI required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 6th, 2026
Budget Analysts
Administrative Management and General Management Consulting Services
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Senior Software Developer - Secret Clearance required
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Leffler Consulting
Reston, VA
L6 Lead
August 6th, 2026
Software Developers
Custom Computer Programming Services
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Senior Data Scientist - TS/SCI Clearance with C.I. Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 6th, 2026
Data Scientists
Other Scientific and Technical Consulting Services
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Human Resources Specialist - CI Polygraph required
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 10th, 2026
Human Resources Specialists
Administrative Management and General Management Consulting Services
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Contract Administrator - TS/SCI Clearance with CI Polygraph REQUIRED
APPLY
Leffler Consulting
Gaithersburg, MD
L5 Senior
August 10th, 2026
Secretaries and Administrative Assistants, Except Legal, Medical, and Executive
Administrative Management and General Management Consulting Services
Show all >
Ground Systems Integration Engineer - TS/SCI with CI Polygraph
APPLY
Leffler Consulting
Gaithersburg, MD
L6 Lead
August 11th, 2026
Computer Systems Engineers/Architects
Space Research and Technology
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Junior Financial Analyst - TS/SCI Clearance required
APPLY
Leffler Consulting
Fairfax, VA
L4 Mid
August 11th, 2026
Accountants and Auditors
Other Management Consulting Services
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