Software Engineer (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED

Constellation Technologies, Inc

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Fort Meade, MD on site Until 10/3/2026 11+ years exp First posted August 4, 2026 Last posted August 4, 2026
Job description
java, python, C/C++, Assembly (x86), and debugging.
 
Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position.
 
 

Required:

    • Must be a US Citizen.
    • Must have TS/SCI clearance w/ active polygraph.
    • Must have eleven (11) years of direct/relevant experience.
    • Bachelor’s degree in computer science or related discipline from an accredited college or university is required
    • Strong development experience in a variety of languages (ex., java, python).
    • Ability to read/understand C/C++, and Assembly (x86).
    • Experience with software architecture, operating system design, compilers, and debugging.
    • Comfortable working with operating system internals, low-level software development, file I/O, system APIs, memory management, and executable program analysis.

These Qualifications Would be Nice to Have:

    • Modeling experience.
    • Machine Learning experience.
    • Dev experience on Linux platforms.
    • Analytics development experience.
    • Virtual Machine (VM) experience
The benefits package:
• Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA
• Comprehensive Dental insurance
• Vision with 80% employer paid premium
• Employer paid Life insurance 100%
• Employer paid Short-term and Long-term disability 100%
• Annual training, continued education, and professional memberships reimbursement
• Unlimited access to Red Hat Enterprise Linux and AWS training and accreditation
• Annual reimbursement for technology i.e. phones, computers, printers, etc.
• 401(k) with company match up to 5% with 100% immediate vesting (after 90 days of employment)

The environment and perks:  
• Professional development investment and paid time off for training
• Contract and work locations in Maryland, Virginia, Colorado, Texas, Utah, Florida and Hawaii.
• Team building events throughout the year such as Destination Family Events, Holiday Party, Monthly Get-Togethers
• Leadership Team engagement and mentorship
• Performance Recognition Program
• Complimentary branded apparel

Don't see a job opening that's the perfect fit? Apply to our General Position to join our talent pool for consideration for future opportunities.
  
Know someone else who may be a good fit? Refer them through the CTI External Referral Program and you could receive a one-time referral bonus of up to $10,000! Email [email protected] for more information.
 
Constellation Technologies is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law. Job applicants can submit questions about CTI’s equal employment opportunity policy to [email protected].

Compensation (from employer):
150000–245000 USD per year

About this role

Summary

Develops low-level software, debug, and understand OS internals for security applications.

Job title

Software Engineer (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED

Experience level

11+ years

Minimum experience

11+ years exp

Industry

defense

Location requirements

Fort Meade, MD; remote not specified.

Salary

$150k–$245k

Management role

No

Skills & keywords

Required skills

javapythonc/c++assemblydebuggingsecurity clearance

Preferred skills

modelingmachine learninglinuxanalyticsvirtual machine

Specializations

security clearancelow-level softwaredebuggingOS internalsassembly
Locations

Structured locations inferred from the posting.

Fort Meade, MD, USA

On-site City
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