Visualization & Simulation Software Engineer

International Executive Service Corps; Chantilly (VA); On-site; USD 80,000 - 110,000; Full time

Job summary

FTS International, LLC in Chantilly, VA is seeking a Visualization & Simulation Software Engineer to develop interactive 3D applications focused on geospatial visualization. This role involves collaborating with senior engineers and enhancing rendering performance.

The ideal candidate must be a US Citizen with a BS in a STEM field, 1+ years of experience, and competency in JavaScript and Python. Opportunities to work with Three.js and geospatial data are included.

Qualifications

• US Citizen with the ability to obtain a TS/SCI with polygraph.
• Minimum of 1 year of relevant experience required.
• Familiarity with Python and frontend development.

Responsibilities

• Assist in building 3D visualization features using Three.js.
• Support backend development in Python for data processing.
• Implement UI components and interactive controls for visualization tools.

Skills

JavaScript

Python

3D Math Concepts

Problem-Solving

Client-Server Architecture

Education

BS STEM (Science, Technology, Engineering, or Math)

Tools

Three.js

Git

Job description

FTS International, LLC (FTS) is committed to providing the Federal Government with quality consultants and support. To ensure mission success we focus on putting our customers first while minimizing corporate bureaucracy on our staff. We provide Subject Matter Experts (SME) free of Organizational Conflicts of Interest (OCI) focused on independent analysis and mission support services within the disciplines of Engineering, Counter Terrorism Operations, Management, Information Technology, Signals Analysis, Administration, Cyber Security and Linguistics.

FTS has an opportunity for a Visualization & Simulation Software Engineer in Chantilly, VA.

The Visualization & Simulation Software Engineer will build interactive 3D applications and simulation tools focused on geospatial and RF visualization.

Responsibilities

• Assist in building 3D visualization features using Three.js:
  • Rendering satellites, paths, and coverage areas
  • Displaying dynamic simulation data in real time
• Support backend development in Python for:
  • Data processing and interpolation
  • Simulation integration
• Implement UI components and interactive controls for visualization tools
• Debug and improve performance of rendering and data pipelines
• Learn and contribute to spatial and geometric algorithms
• Collaborate with senior engineers on system design and implementation

Required Skills/Qualifications

• US Citizen
• Ability to obtain a TS/SCI with polygraph
• BS STEM (Science, Technology, Engineering, or Math) in engineering discipline
• 1+ years of relevant experience
• Basic proficiency in JavaScript and frontend development
• Familiarity with Python
• Understanding of basic 3D math concepts:
  • Coordinates, vectors, transformations
• Strong problem-solving mindset and interest in technical challenges
• Exposure to client-server architecture

Desired Skills/Qualifications

• TS/SCI with polygraph
• Experience with Three.js or other 3D/graphics libraries
• Exposure to:
  • Geospatial data (lat/Lon, map projections)
  • Simulation or physics-based systems
• Familiarity with Git and collaborative workflows
• Interest in algorithms, geometry, or real-time systems

FTS International, LLC is an Equal Opportunity Employer - vets/disabled.