Senior Palantir Foundry Developer (Lead)

Unissant; Washington (District of Columbia); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Unissant, Inc. is seeking a Senior Palantir Foundry Developer (Lead) to join our team and support our client in Washington, DC/Herndon, VA.

This is a full-time, hybrid role requiring onsite work two to three days per week, with the opportunity to lead the practice and mentor junior staff from day one. The ideal candidate will own Foundry end-to-end delivery, design complex ontology models, and influence architecture decisions while collaborating with stakeholders.

Qualifications

• Five (5) or more years of software or data engineering experience, including three (3) or more years of hands-on Palantir Foundry experience in a lead or senior capacity.
• Demonstrated experience owning Foundry solutions end-to-end, ideally in a federal or highly regulated environment.
• Strong proficiency in Python, SQL, and TypeScript.
• Experience translating ambiguous client requirements into scalable technical architecture.
• Prior experience supporting DHS, CBP, or other federal law enforcement/homeland security clients preferred.
• Experience standing up or scaling a Palantir practice within a consulting or systems integrator environment preferred.
• Familiarity with AIP preferred.

Responsibilities

• Serve as technical lead for Foundry application and ontology development across client engagements.
• Design and build complex ontology models, Actions, Functions, and Workshop applications from the ground up.
• Own solution architecture decisions in coordination with client stakeholders and Unillant leadership.
• Mentor and upskill junior developers as the practice scales.
• Serve as a primary technical point of contact in client meetings and proposal support activities.
• Establish reusable frameworks, templates, and best practices for the practice.

Skills

Foundry Lead

Python

SQL

TypeScript

Solution architecture

DHS/CBP experience

Mentoring/leadership

Client communication

Foundry practice leadership

Education

Bachelor's degree

MBA or Master’s

Tools

Palantir Foundry

Job description

Unissant, Inc. delivers innovative capabilities to the agencies that keep our nation healthy and safe. We apply our domain expertise, data acumen, and technology know-how to achieve breakthrough results for our clients. Working collaboratively, we advance missions and careers through a focus on honesty, integrity, and dependability. We continuously look for talent, excited to join that effort. To learn more about our exciting organization, please visit us at

We are seeking a Senior Palantir Foundry Developer (Lead) to join our team and support our client.

The ideal candidate is a senior Foundry practitioner and founding technical leader capable of standing up the practice''s build capability, mentoring junior staff, and owning delivery on day one. This is a full‑time, hybrid position based in Washington, DC/Herndon, VA, requiring onsite work two to three days per week.

Essential Duties And Responsibilities

• Serve as technical lead for Foundry application and ontology development across client engagements.
• Design and build complex ontology models, Actions, Functions, and Workshop applications from the ground up.
• Own solution architecture decisions in coordination with client stakeholders and Unissant leadership.
• Mentor and upskill junior developers as the practice scales.
• Serve as a primary technical point of contact in client meetings and proposal support activities.
• Establish reusable frameworks, templates, and best practices for the practice.

Work Experience And Job Skills

• Five (5) or more years of software or data engineering experience, including three (3) or more years of hands‑on Palantir Foundry experience in a lead or senior capacity.
• Demonstrated experience owning Foundry solutions end‑to‑end, ideally in a federal or highly regulated environment.
• Strong proficiency in Python, SQL, and TypeScript.
• Experience translating ambiguous client requirements into scalable technical architecture.
• Prior experience supporting DHS, CBP, or other federal law enforcement/homeland security clients preferred.
• Experience standing up or scaling a Palantir practice within a consulting or systems integrator environment preferred.
• Familiarity with AIP preferred.

Education

• Bachelor''s Degree is required. Preferred field of study in Computer Science, Information Technology, Information Systems, Operations Management, or related field of study.
• MBA/Master''s Degree in a relevant field of study preferred.

Certificates, Licenses And Registrations

• Palantir Foundry Developer certification preferred.

Communication Skills

• Excellent verbal and written skills, ability to present proposals and performance data, comfortable interfacing all levels of organization.
• Ability to write clear and concise creative content in a highly confidential manner.

Clearance Requirements

• Ability to obtain and maintain a DHS Public Trust clearance is required.

Travel

• Minimal travel may be required.

Environmental Requirements

• Mainly a routine office environment.
• May be required to lift up to ten (10) pounds
• Flexible in working extended hours

The above statements are intended to describe the general nature and level of work being performed by the individual(s) assigned to this position. They are not intended to be an exhaustive list of all duties, responsibilities, and skills required. Unissant management reserves the right to modify, add, or remove duties and to assign other duties as necessary. In addition, where applicable and available, reasonable accommodation(s) may be made to enable individuals with disabilities to perform essential functions of this position.

Please note: Candidate(s) will be required to go through pre-employment screening.

Unissant, Inc. is a proud Equal Opportunity Employer! (EOE; M/F/Disability/Vets)