C4PS - 2510 Sr. Data Engineer, Palantir Foundry (AI) with Security Clearance

C4 Planning Solutions, LLC; Quantico (VA); Hybrid; USD 120,000 - 180,000; Full time

Job summary

C4 Planning Solutions, LLC seeks a Senior Data Engineer to embed with Marine Corps Systems Command at Quantico. You will deliver AI-enabled data applications on Palantir Foundry, design data architectures, and integrate SharePoint/Graph APIs. Expect a hands-on role building pipelines, ontology, and production code in TypeScript, React, and Python.

Requires 5+ years, active Secret clearance, and CompTIA Security+ or ability to obtain. Hybrid onsite 2–3 days/week with DoD experience preferred.

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 led projects where requirements were unclear and delivered usable scope.

Responsibilities

• Partner directly with the customer’s CIO staff to scope an AI capability for meeting minutes and schedule management.
• Design the underlying data architecture and models before building on top.
• Integrate Microsoft Graph API and SharePoint Online into Foundry.
• Build production pipelines and transforms in Foundry and develop ontology objects.
• Build and ship working applications in Foundry using TypeScript, React, and Python.
• Demo working software to government stakeholders and iterate based on feedback.
• Advise government leadership on data architecture, interoperability, and scalability.

Skills

Palantir Foundry experience

TypeScript

React

Python

APIs integration

Security clearance

Education

CompTIA Security+ certification

Tools

Microsoft Graph API

SharePoint Online

Databricks

Spark

Lakehouse architecture

Job 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