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McKinsey & Company · 2 months ago

Senior Software Engineer - US Department of Defense

Washington, DC

Full-time

Onsite

Senior Level

7+ years exp

McKinsey & Company is a global management consulting firm, and they are seeking a Senior Software Engineer to work with their U.S. Social Sector, Healthcare, and Public Sector Entities practice. The role involves designing and developing core data frameworks to drive meaningful mission outcomes for clients, particularly in the defense and security sectors.

ConsultingManagement ConsultingProfessional Services

Growth Opportunities

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Work with defense and security teams on complex issues in a fast-paced environment

Design and develop core data frameworks to enable software capabilities used by data engineers, data scientists, and consulting teams

Leverage engineering frameworks and best practices to drive meaningful mission outcomes for clients

Help shift the model toward asset-based consulting and build a foundation for expansion into an entrepreneurial culture

Participate in cross-functional Agile project teams alongside data scientists, machine learning engineers, and industry experts

Contribute to the development of innovative ideas and practical solutions that have a tangible impact

Engage in continuous learning and mentorship to accelerate personal and professional growth

Qualification

Active TS/SCI clearanceGraph databases experienceData engineering expertiseCloud platforms experienceProgramming skillsSoftware engineering best practicesNoSQL databases experienceTeam collaborationProblem-solvingAdaptability

Required

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, with 7-8 years of relevant experience

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

Proven ability to align data engineering approaches with large-scale interconnected systems, ensuring adaptability and scalability

Interest or experience in running simulations in Python and applying advanced analytics to solve complex problems

Preferred

Familiarity with aerospace and defense program and/or mission data

Benefits

World-class benefits: On top of a competitive salary (based on your location, experience, and skills), we provide a comprehensive benefits package to enable holistic well-being for you and your family.