> Markdown version of [/jobs/ext/1990037-principal-sr-principal-software-engineer-18816](https://www.wearedevelopers.com/jobs/ext/1990037-principal-sr-principal-software-engineer-18816). 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). --- # Principal/Sr Principal Software Engineer-18816 - **Company:** Northrop Grumman - **Location:** Roy, UT, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Computer-Aided Design, Application Programming Interfaces (APIs), Artificial Intelligence, Big Data, Software Debugging, Python (Programming Language), Machine Learning, Pattern Recognition, SAP (Applications), TypeScript, Unstructured Data, Large Language Models, Multi-Agent Systems, Production Code - **Published:** August 8, 2026 - **Apply:** https://us.experteer.com/career/view-jobs/principal-sr-principal-software-engineer-18816-roy-ut-usa-58846770 ## About the Role AI-enabled teams to deploy ML models from prototype to production * Employ system-of-systems or multi-agent approaches to architecture AI software * Perform integration, regression, and formal qualification testing in agile environments * Coordinate with AI Systems Engineers to align program intent and outputs * Design software architectures that improve reliability, precision, and speed to meet performance requirements Tasks * 5+ years with Bachelors (or equivalent), 3+ with Masters, 0 with PhD (or 4 additional years in lieu) for Principal Engineer Software * Must be able to obtain DoD Secret clearance * U.S. Citizen with ability to obtain SAP * Proficiency in Python and JavaScript/TypeScript with production-grade code * Experience hosting/optimizing local LLMs (Ollama, LlamaCPP) * Experience integrating AI service APIs (OpenAI, Claude, Gemini) * Experience building agentic AI with LangChain, LangGraph, or similar libraries Key requirements * Medical, Dental & Vision coverage * 401k ## Description Experteer Overview In this role you will design and deliver AI-enabled software for defense systems, focusing on large-scale data, LLM deployment, and agentic AI. You will join our data science and product teams to build end-to-end AI solutions that differentiate our products and scale their impact. You'll prototype advanced AI techniques for autonomous systems and work with cross-functional teams to ensure robust, production-grade software. This is a high-impact role in a mission-driven company with opportunities to shape cutting-edge capabilities. Compensation / Benefits * Define and develop mathematical models, algorithms, and ML solutions for prediction, optimization, and classification * Apply ML on large structured and unstructured datasets for pattern recognition, target detection, tracking, and decision systems * Prototype AI techniques to extend autonomous systems R&D * Design, document, test, and debug software and systems implementing AI solutions * Collaborate with cross-functional teams to deploy ML models from prototype to production * Employ system-of-systems or multi-agent approaches to architecture AI software * Perform integration, regression, and formal qualification testing in agile environments * Coordinate with AI Systems Engineers to align program intent and outputs * Design software architectures that improve reliability, precision, and speed to meet performance requirements Tasks * 5+ years with Bachelors (or equivalent), 3+ with Masters, 0 with PhD (or 4 additional years in lieu) for Principal Engineer Software * Must be able to obtain DoD Secret clearance * U.S. Citizen with ability to obtain SAP * Proficiency in Python and JavaScript/TypeScript with production-grade code * Experience hosting/optimizing local LLMs (Ollama, LlamaCPP) * Experience integrating AI service APIs (OpenAI, Claude, Gemini) * Experience building agentic AI with LangChain, LangGraph, or similar libraries Key requirements * Medical, Dental & Vision coverage * 401k * Educational Assistance * Life Insurance * Employee Assistance Programs & Work/Life Solutions * Paid Time Off ## Related Videos - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [Designing the Future of Human<>Agent Collaboration](https://www.wearedevelopers.com/videos/1447-designing-the-future-of-human-agent-collaboration) - [The Software Engineer 2030: From Coder To AI Orchestrator? - Patrick Schnell](https://www.wearedevelopers.com/videos/1825-the-software-engineer-2030-from-coder-to-ai-orchestrator-patrick-schnell) - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [The AI-Native Engineering Org: What’s Real, What’s Hype, What’s Next](https://www.wearedevelopers.com/videos/100004-the-ai-native-engineering-org-what-s-real-what-s-hype-what-s-next) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What is Agentic Programming and Why Should Developers Care?](https://www.wearedevelopers.com/magazine/625-what-is-agentic-programming-and-why-should-developers-care) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development)