54 principal software engineer jobs at 10 companies in Decherd, TN
3mo
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Principal Software Engineer
Huntsville, Alabama, United States
$115k-$130k/yr OnsiteFull Time
5+ YOERequires DoD Secret clearance; 5+ years software engineering; Java/J2EE; Linux; Agile; strong communication; Maven/Git; on-site in Huntsville, AL.
Java, J2EE, Linux, Maven, Git, GitHub, Nexus, Eclipse, Agile, SysML
2mo
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Principal Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOEBachelor's degree in STEM; 8+ years embedded C/C++; I&T integration and test; Full lifecycle software development; Flight software experience; active Secret clearance; onsite work; travel ~10%
C/C++, Python, Linux, Windows, DO-178C, MBSE, Cameo, AADL
4d
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Principal/Sr Principal Software Engineer
Huntsville, Alabama, United States
$109k-$163k/yr OnsiteFull Time
5+ YOEActive Secret clearance, STEM degree, 5+ years (Principal) or 9+ years (Sr Principal) relevant software experience; familiarity with Kalman filters and radar tracking; strong analytical and communication skills.
C, C++, MATLAB, Java, Python, MBSE (Cameo), Integrated Battle Command System, Joint Track Management Capability Bridge
2mo
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Principal Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
8+ YOEBachelor’s degree or higher and 8-10 years of software development experience; ability to obtain secret clearance; Java/C++/Python; Agile; Linux/UNIX; UML; IDEs; test environments.
Java, C++, Python, Linux, UNIX, Eclipse, IDE, UML, Test frameworks, XUnit, JUnit, CPPUnitLite, Version Control, Clearcase, JIRA
4d
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Principal/Sr Principal Software Engineer
Huntsville, Alabama, United States
$109k-$163k/yr OnsiteFull Time
5+ YOEDesign and maintain sensor registration algorithms; familiarity with Kalman filters and radar tracking; active Secret clearance; Principal (≈5+ yrs) or Sr Principal (≈9+ yrs) level experience in STEM; proficiency in C/C++ and MATLAB.
C/C++, MATLAB, Java, Python, MBSE (Cameo), Integrated Battle Command System, Joint Track Management Capability Bridge
1w
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Senior Principal Software Engineer
Huntsville, Alabama, United States
OnsiteFull Time
4+ YOEActive DoD Secret clearance, STEM degree with relevant experience (8/6/4 years depending on degree), recent C++/Java/Ada development, strong communication, able to work onsite, travel up to 10%.
C++, Java, Ada, Linux, MATLAB, Python, Jira, Confluence, Jenkins, Ansible, Git, Gitlab, CI/CD
1mo
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Principal Software Developer
Houston or Madison
RemoteFull Time
5+ YOE5+ years in data science/ML engineering, 3+ years building NLP/generative AI and MLOps; production experience with Python ML stack, LLMs, cloud (AWS), MLOps, evaluation frameworks, and strong communication skills.
Python, Pandas, NumPy, scikit-learn, XGBoost, TensorFlow, PyTorch, Hugging Face Transformers, FastAPI, Flask, MLflow, pytest, SQL, GPT, Claude, Llama, Pinecone, Weaviate, Chroma, Docker, SageMaker, Bedrock, S3, Lambda, EC2, CloudWatch, Tableau, Power BI, Spark, Databricks, Snowflake, Airflow, Kubeflow, Datadog, Prometheus, Jira, LangGraph, LangChain, AutoGen, CrewAI, RAGAS, DeepEval
1mo
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Sr Principal Software Engineer -Core Systems & Libraries (Onsite)
Huntsville, Alabama, United States
$132k-$252k/yr OnsiteFull Time
10+ YOEU.S. citizenship required. STEM degree plus 10+ years experience (or advanced degree plus 7+ years). Experience with architecture and development of safety-critical avionics software, DO-178 certification artifacts, C++ development, and cross-functional leadership.
C++, VxWorks, GIT, Subversion, JIRA, DO-178
2mo
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Principal Software Engineer, Manufacturing Test
Huntsville, Alabama, United States
OnsiteFull Time
7+ YOEBachelor’s in CS/Software/EE/Robotics; 7+ years in software engineering/manufacturing automation; Python plus Bash/PowerShell/C/C++; automated test systems; Linux admin; CM/CI/CD; hardware interfaces; robotics/embedded systems; ability to obtain US security clearance.
Python, Bash, PowerShell, C/C++, Linux, Git, CI/CD
1w
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Principal Software Engineer – Seeker Market Expansion
Huntsville, Alabama, United States
$136k-$231k/yr OnsiteFull Time
10+ YOEBachelor's in CS/CE/EE (Master's preferred), 10+ years embedded systems experience, experience with Xilinx SoC FPGAs, proficiency in C/C++, ability to obtain Secret clearance, RTOS/FreeRTOS/VxWorks experience preferred.
Xilinx System-on-Chip (SoC), System-on-a-Module (SOM), ARM, FreeRTOS, VxWorks, C, C++, Agile, CI/CD, static code analysis, agentic workflows
2w
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Principal Software Engineer – Seeker Market Expansion
Huntsville, Alabama, United States
$107k-$183k/yr OnsiteFull Time
6+ YOEBachelor's in CS/CE/EE (Master's preferred), ability to obtain Secret clearance, 6+ years embedded systems experience, Xilinx SoC FPGA experience, proficiency in C/C++, RTOS/FreeRTOS/VxWorks or bare metal, EM/CI practices.
Xilinx System-on-Chip (SoC) FPGAs, ARM, FreeRTOS, VxWorks, C, C++, Agile, CI/CD
6d
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Principal Engineer, Civil
Chattanooga or United States
RemoteFull Time
10+ YOE5+ MgmtBachelor's in civil/structural engineering, PE license, 10+ years civil/structural design experience (5+ years in PV/BESS), leadership experience, knowledge of industry codes, and proficiency with engineering software.
AutoCAD Civil 3D, L-Pile
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