# C4PS-2510 Senior Data Engineer, Palantir Foundry (AI Applications) - AUG 2026

> C4 Planning Solutions, LLC · Quantico, United States (Hybrid) · Full-time · Posted 2026-07-30

**Workplace:** hybrid

**Department:** MCTSSA

## Description

**Position Title:** Senior Data Engineer, Palantir Foundry

**Location:** Quantico, VA

**Position Type:** Full-time, Hybrid (Onsite 2-3 days per week).

**Security Clearance Requirement:** Position requires active security clearance

**Certification Requirements:**

-   CompTIA Security+ (or the ability to obtain within 60 days of employment).

**Years of Experience: 5**\+ years

Seeking a senior engineer to embed with Marine Corps Systems Command and build AI-enabled data applications on the Marine Corps' Palantir Foundry environment, part of the War Data Platform.

This is a hands-on build role embedded with the customer. The first six months are about getting the data architecture right and shipping working software, not producing roadmaps for someone else to execute.

**What you'll work on:**

-   Partner directly with the customer's CIO staff to scope an AI capability for meeting minutes and schedule management, starting from an idea rather than a requirements document
-   Design the underlying data architecture and models before anything gets built on top of them
-   Integrate Microsoft SharePoint and other authoritative sources into Foundry using the Microsoft Graph API, including app registration, permissions, and sync
-   Build production pipelines and transforms in Foundry, and develop the ontology objects the applications depend on
-   Build and ship working applications in Foundry using TypeScript, React, and Python
-   Collaborate with Palantir engineering on repository and data access setup
-   Demo working software to senior government stakeholders and iterate on what you hear
-   Advise government leadership on data architecture, interoperability, and how the environment should scale

**Qualifications**:

-   **Active Secret clearance.**
-   **Hands-on production Palantir Foundry experience: Pipeline Builder, code repositories, transforms, and ontology development**
-   Strong application development ability in TypeScript, React, and Python
-   Real experience integrating external APIs and moving data between enterprise systems
-   You have shipped an AI or LLM-backed feature to actual users and handled it being wrong in production
-   Comfort with ambiguity. You've walked into a project where the customer couldn't articulate what they wanted and returned with a scope
-   Ability to hold your own in a room with senior government leadership

**Preferred Experience:**

-   Foundry application layer: Ontology SDK, Workshop, AIP
-   Microsoft Graph API and SharePoint Online integration
-   Databricks, Spark, or lakehouse architecture experience
-   Prior work with the War Data Platform, Advana, or comparable DoD enterprise data platforms
-   Federated or distributed data architecture design
-   IAT Level II (Security+). If you don't have it, we'll pay for it.
-   Marine Corps, Navy, or DoD modernization experience

## Requirements

-   **Active Secret clearance.**
-   **Hands-on production Palantir Foundry experience: Pipeline Builder, code repositories, transforms, and ontology development**
-   Strong application development ability in TypeScript, React, and Python
-   Real experience integrating external APIs and moving data between enterprise systems
-   You have shipped an AI or LLM-backed feature to actual users and handled it being wrong in production
-   Comfort with ambiguity. You've walked into a project where the customer couldn't articulate what they wanted and returned with a scope
-   Ability to hold your own in a room with senior government leadership

## Benefits

-   Paid Vacation, Sick Time and Holidays
-   Medical, Dental, Life and Disability Insurance
-   401K with Employer Contribution Matching
-   Service Disabled Veteran Owned Business
-   Equal Opportunity Employer
-   ISO 9001:2015 Certified Company
-   [www.c4plans.com](http://www.c4plans.com/)

## Apply

[Apply at C4 Planning Solutions, LLC](https://apply.workable.com/c4-planning-solutions-llc/j/DD1F253F72/apply)

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