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Nuclear Engineer - Senior

SOSi1

Reston, VA, United States permanent

Posted: November 21, 2025

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Quick Summary

We are seeking a Senior level Nuclear Engineer (Scientific Support) to assist partners in enhancing government efforts against current and emerging threats, and counterproliferation efforts.

Job Description

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

Overview

 

 SOSi is seeking a Senior level Nuclear Engineer (Scientific Support). to be part of a unique, multi-discipline team assisting partners to fuse operations and intelligence information to enhance government efforts against current and emerging threats, and counterproliferation efforts.

 

Essential Job Duties

 

• In this role, you will support defense analytic requirements with enhanced scientific and engineering research, as well as reverse engineering analysis.
• You will also conduct facility and vulnerability assessments on foreign nuclear capabilities.
• Develop innovative analytic and collection concepts across directorate mission areas, support assessment of new technologies techniques, methods, conduct multi-Intelligence integration, and plan programming budgeting.

 

Minimum Requirements

 

• BA degree in relevant field.
• 8 years of experience supporting defense analytic requirements with nuclear engineering research.
• In lieu of BA degree, 12+ years of experience supporting defense analytic requirements with nuclear engineering research in lieu of a degree.
• Experience reviewing analytical products for cogent arguments, tradecraft standards, and adequate support.
• Ability to define comprehensive, new, or unique research approaches that enable rigorous assessments to address and contribute to high-level tasks.
• Ability to work independently and with minimal oversight.
• Active TS/SCI clearance; willingness to take a polygraph exam.
• Demonstrates ability to define comprehensive, new, or unique research approaches that enable rigorous assessments to address and contribute to high-level tasks.
• Demonstrates in-depth analysis of analytic operations and knowledge management issues across organizational and intra-IC boundaries and clearly articulates key findings.
• Demonstrates ability to work independently and with minimal oversight.
• Demonstrates ability to review analytic products for cogent arguments, tradecraft standards, and adequate support for conclusions; routinely tests analytic rigor of analytic products.

 

Preferred Qualifications

 

• TS/SCI with a current CI Poly
• Knowledge of nuclear sub-disciplines like thermos-hydraulics, seismic events, physics, computational science, or fission reactor engineering.
• Bachelor’s degree in physics, engineering, engineering technologies, or a physical science field.

 

Work Environment

• Normal office conditions
• On government site in Reston, Virginia

 

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.

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