> Markdown version of [/jobs/ext/2898025-software-engineer-principal-fully-cleared-with-polygraph-req](https://www.wearedevelopers.com/jobs/ext/2898025-software-engineer-principal-fully-cleared-with-polygraph-req). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

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

- **Company:** Constellation Technologies, Inc.
- **Location:** Fort Meade, MD, United States
- **Salary:** $150,000.0 - $245,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), 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, System Programming, Virtual Machines, Information Technology
- **Published:** September 14, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9073242/software-engineer-principal-fully-cleared-with-polygraph-req

## About the Role

* 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



## Related Videos

- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)
- [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker)
- [Just-in-time Compilation in JVM](https://www.wearedevelopers.com/videos/240-just-in-time-compilation-in-jvm)
- [Introduction to Azure Machine Learning](https://www.wearedevelopers.com/videos/368-introduction-to-azure-machine-learning)
- [You’re a great coder? That alone won’t get you far: The soft skills secret in IT success](https://www.wearedevelopers.com/videos/1076-you-re-a-great-coder-that-alone-won-t-get-you-far-the-soft-skills-secret-in-it-success)
- [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker)

## Related Articles

- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)
- [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again)
- [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)