> Markdown version of [/jobs/ext/3565880-principal-systems-engineer-sr-principal-systems-engineer-data-analyst](https://www.wearedevelopers.com/jobs/ext/3565880-principal-systems-engineer-sr-principal-systems-engineer-data-analyst). 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 Systems Engineer / Sr. Principal Systems Engineer - Data Analyst - **Company:** Northrop Grumman - **Location:** Chula Vista, CA, United States - **Experience:** Expert - **Salary:** $93,300.0 - $174,500.0 - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Data Analysis, Systems Engineering, Code Review, Information Engineering, Extract Transform Load (ETL), Data Stores, Data Visualization, Relational Databases, Web Development, Django Web Framework, Python (Programming Language), Parsing, Standard Sql, SAP (Applications), Tableau (Software), Data Ingestion, Virtual Environment, Git, Git Flow, Data Analytics, Codebase, Software Version Control, Data Pipelines - **Published:** October 3, 2026 - **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=3002103628-2 ## About the Role * Principal Systems Engineer 3 - Bachelor's degree in a STEM discipline AND 5 years of related professional/military experience in Systems Engineering, Data Analytics, Data Engineering or Data Science, OR a Master's degree in a STEM discipline AND 3 years of related professional/military experience in Systems Engineering, Data Analytics, Data Engineering or Data Science. OR a PH.D. in a STEM discipline AND 1 years of related professional/military experience in Systems Engineering, Data Analytics, Data Engineering or Data Science. * Senior Principal Systems Engineer 4 - Bachelor's degree in a STEM discipline AND 8 years of related professional/military experience in Systems Engineering, Data Analytics, Data Engineering or Data Science, OR a Master's degree in a STEM discipline AND 6 years of related professional/military experience in Systems Engineering, Data Analytics, Data Engineering or Data Science. OR a PH.D. in a STEM discipline AND 4 years of related professional/military experience in Systems Engineering, Data Analytics, Data Engineering or Data Science. * Proficient/Advanced Python Skills; comfortable with large, production codebases * Experience with relational database design * Proficient SQL Skills; comfortable with complex joins * Comfortable working with data pipelines (ETL) that extract, transform, and load data to structured data stores for analytics and reporting * Comfortable with version control (Git, branching strategies, code review) * Strong analytics skills - proficient in exploratory data analysis (EDA), summarization, trend detection, and anomaly/outlier identification; ability to frame and answer engineering/business questions with appropriate metrics, statistical methods, and clear narrative. * Proficient in data visualization and storytelling. Skilled at designing effective visualizations that communicate insights to both technical and non-technical stakeholders * Ability to obtain a DOD Secret clearance * Ability to obtain and maintain Special Access Program (SAP) clearance., * Experience designing and implementing data pipelines (ETL) to move data from raw sources into structured datasets for analytics and reporting * Experience with Web Development, especially with Django Framework * Experience with modern Business Insight (BI) tools, especially Tableau * Experience working with existing CI/CD pipelines and multiple environments (dev/stage/prod), including using virtual environments for local development * Active DoD Secret or Top Secret Clearance * Active/current SAP clearance (any SAP) ## Description * Engage with technical and programmatic teams to understand their questions and problems, and help translate them into clear data and analytical requirements. * Architect and develop modular, scalable data processing and analytics tools, following established coding and version-control practices. * Assist in designing and implementing end-to-end data solutions, from data ingestion/parsing, to relational data models, though analytics and reporting * Assist in designing and implementing intuitive user interfaces that enable users to enter, review, and interact with data accurately and efficiently. * Perform exploratory data analysis and applied analytics to identify trends, outliers and anomalies in engineering and business data. Synthesize findings into clear, actionable insights for technical and non-technical stakeholders ## Related Videos - [Getting to Know Your Legacy (System) with AI-Driven Software Archeology](https://www.wearedevelopers.com/videos/1437-getting-to-know-your-legacy-system-with-ai-driven-software-archeology) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Data Science, ML & AI in the Oil and Gas Industry at NDT Global - Dr. Katja Träumner](https://www.wearedevelopers.com/videos/1308-data-science-ml-ai-in-the-oil-and-gas-industry-at-ndt-global-dr-katja-traumner) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [What Jobs Can You Get with a Software Engineering Degree?](https://www.wearedevelopers.com/magazine/398-what-jobs-can-you-get-with-a-software-engineering-degree)