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# Software Engineer II - US Department of Defense

- **Company:** McKinsey & Company
- **Location:** Atlanta, GA, United States
- **Experience:** Experienced
- **Salary:** $137,500.0 - $141,700.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Data Analysis, Unit Testing, Computer Programming, Information Engineering, Extract Transform Load (ETL), Query Languages, DevOps, Distributed Computing Environment, Graph Database, Python (Programming Language), Machine Learning, Neo4j, Node.Js, NoSQL, DataOps, SAP (Applications), Software Construction, Software Systems, Data Streaming, TypeScript, Unstructured Data, Web Applications, Enterprise Software Applications, Cloud Platform System, ReactJS, Fastapi, Pandas, Containerization, Core Data, Information Technology, Machine Learning Operations, Front End Software Development, Graph RAG, Stream Processing, Api Management, Docker
- **Published:** October 27, 2026
- **Apply:** https://diversityjobs.com/career/18738162/Software-Engineer-Ii-Us-Department-Defense-Georgia-Atlanta

## About the Role

* Active TS/SCI clearance (or SCI-eligibility), ideally with past or current DoD SAP/SAR access
 * Advanced degree in a quantitative field (e.g., computer science, machine learning, applied statistics, or mathematics) or equivalent experience
 * 3+ years of relevant experience. Familiarity with aerospace and defense programs and/or mission data is preferred.
 * Proven experience with graph databases and analytics, including Neo4j, Gremlin, or similar tools, and query languages like Cypher or Gremlin. Ability to model complex system relationships, workflows, and time-dependent processes
 * Strong programming skills in modern languages such as Python, Java, Node.js, or Go, with expertise in writing clean, maintainable, and scalable code. Experience with FastAPI, Pandas, and React + TypeScript is a plus
 * Experience building and integrating web application back ends and contributing to front-end development when needed
 * Extensive experience with data engineering and pipelines, including ETL, data quality, and working across structured, semi-structured, and unstructured data. Familiarity with event streaming, real-time data processing, and high-velocity sequential data flows
 * Practical knowledge of software engineering best practices, including DevOps, DataOps, MLOps, containerization (e.g., Docker), and orchestration
 * Experience with distributed computing frameworks and cloud platforms, with a focus on deploying enterprise applications in cloud environments
 * Strong testing skills, including unit testing, integration/API testing, and ensuring robust, scalable solutions
 * Experience with NoSQL databases and working with graph-related problems, including the use of GenAI/ML techniques like GraphRAG
 * Interest or experience in running simulations in Python and applying advanced analytics to solve complex problems

## Description

You will work with our defense and security teams on some of their toughest issues, in a fast-paced, non-hierarchical, and caring environment.
You will be part of our global data engineering community and work in cross-functional Agile project teams alongside data scientists, machine learning engineers, other data engineers, project managers, and industry experts to innovate alongside clients and CSTs to develop new or existing assets.
By leveraging engineering frameworks and best practices, you will design and develop core data frameworks to drive meaningful mission outcomes for our clients by enabling software capabilities used by data engineers, data scientists, consulting teams and external clients. You will help to shift our model toward asset-based consulting and build a foundation for the expansion of our investment into our entrepreneurial culture.
Our Social Sector, Healthcare, and Public Sector Entities (SHaPE) practice delivers high-impact services to clients across three major sectors, including federal, state, and local governments. Within SHaPE, the Defense and Security subsector focuses on the U.S. Department of Defense (DoD), including the Office of the Secretary of Defense, major defense agencies, and military services, as well as members of the National Security Community.