Mid-Level Software Engineer — Physics-Based Simulations

Leidos; Reston (VA); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking a Mid-Level Software Developer to support a highly technical, interdisciplinary program with DTRA and DIA. You will build and optimize software that powers physics-based models and simulations, enabling scientific assessments and more efficient operations.

You will collaborate with scientists and engineers to translate complex needs into robust software, design data pipelines in AWS GovCloud environments, and contribute to secure cross-domain data transfer and CI/CD practices

Qualifications

• U.S. Citizenship is required.
• Candidate must have a TS/SCI and be eligible to obtain a TS/SCI w/ poly level clearance.
• BS degree with 8–12 years of relevant experience or MS with 6–10 years of relevant experience; Doctorate acceptable.
• Proficiency in high-level programming languages (Python, C++, or Java).
• Experience designing and managing data pipelines using modern ETL tools.
• Hands-on experience developing software within AWS cloud environments (AWS GovCloud, C2S, SC2S).
• Direct experience handling cross-domain transfer mechanisms (e.g., CDS, guard implementations) to securely move data between unclassified and classified networks.
• Experience with CI/CD, DevSecOps pipelines, and Git.

Responsibilities

• Scientific & Engineering Software Integration: Develop, maintain, and modernize software algorithms that convert complex scientific data into physics-based models.
• Effects-Based Simulation Support: Build backend services and data pipelines to support large-scale simulations for WMD and facility characterization.
• Workflow Automation & ETL: Architect and maintain reliable ETL data flows for massive datasets from varied formats.
• Cross-Domain Data Transfer: Implement secure transfer solutions to move critical data across unclassified and classified networks.
• Cross-Discipline Collaboration: Work with scientists, physicists, hardware engineers, and defense analysts to translate complex requirements into software prototypes.

Skills

Python

C++

Java

CI/CD

Git

Education

Bachelor's degree (technical field)

Master's degree (technical field)

Doctorate (technical field)

Tools

AWS GovCloud

ETL tools

Job description

Leidos is seeking a Mid-Level Software Developer to support a highly technical, interdisciplinary program with DTRA and DIA. You will build and optimize software that powers physics-based models and simulations, enabling scientific assessments and more efficient operations.

You will collaborate with scientists and engineers to translate complex needs into robust software, design data pipelines in AWS GovCloud environments, and contribute to secure cross-domain data transfer and CI/CD practices