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# Software Engineer (Principal) - FULLY CLEARED with POLYGRAPH REQUIRED

- **Company:** Constellation Technologies, Inc.
- **Location:** Fort Meade, MD, United States
- **Salary:** $150,000.0 - $245,000.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Java (Programming Language), X86 Architecture, Application Programming Interfaces (APIs), Business Analytics Applications, C++ (Programming Language), Compilers, Software Debugging, Linux, Memory Management, Python (Programming Language), Machine Learning, Program Analysis, Software Architecture, Software Engineering, System Programming, Virtual Machines, Scripting, Information Technology
- **Published:** October 27, 2026
- **Apply:** https://jobs.lever.co/cti-md/cfc94c60-7dde-4def-9658-aee57700eb62

## About the Role

Software Engineering, United States Citizen, Top Secret Clearance, Sensitive Compartmented Information (SCI), Computer Science, Python Programming/Scripting Language, Java, C Programming Language, C++ Programming Language, x86 Processors, * 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., * Modeling experience.
 * Machine Learning experience.
 * Dev experience on Linux platforms.
 * Analytics development experience.
 * Virtual Machine (VM) experience