Senior Palantir Foundry Developer (Lead) – Hybrid

Job overview

The Senior Palantir Foundry Developer (Lead) works in a hybrid arrangement based in Washington, DC/Herndon, VA, with onsite work two to three days per week. Compensation is $114,000–$196,000 per year. The role supports Unissant’s client engagements and helps build the company’s Foundry practice. This technical lead owns Foundry application and ontology delivery, makes architecture decisions with stakeholders, and establishes reusable practices while mentoring junior developers to support scalable client solutions.

What you'll do

• Lead Foundry application and ontology development
• design ontology models, Actions, Functions, and Workshop applications
• make solution architecture decisions with client stakeholders and company leadership
• mentor junior developers
• serve as a technical contact in client meetings and proposal support
• and establish reusable frameworks, templates, and best practices.

What we're looking for

Skills & competencies

senior palantir foundry developer

technical lead

hybrid

washington dc

herndon va

full-time

palantir foundry

python

sql

typescript

ontology development

dhs public trust

mentoring

$114k–$196k/year

Work arrangement

• Weekend coverage required

Why this role

Requires five or more years of software or data engineering experience, including three or more years of hands-on Palantir Foundry experience in a senior or lead capacity, and a bachelor’s degree. Ability to obtain and maintain DHS Public Trust clearance is required; minimal travel may be required.

About the employer

Unissant is hiring for this role. Industry: Computer Systems Design Services. Sector: 54.