{"schemaVersion":"jobsearcher.job.v1","id":"00a0436925b503be471e6ba7","url":"https://jobsearcher.com/jobs/00a0436925b503be471e6ba7","canonicalUrl":"https://jobsearcher.com/jobs/00a0436925b503be471e6ba7","title":"Visualization & Simulation Software Engineer (Geospatial/RF Systems)","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.\n\nFTS has an opportunity for a Visualization & Simulation Software Engineer (Geospatial/RF Systems) in Chantilly, VA.\n\nThe Visualization & Simulation Software Engineer (Geospatial/RF Systems) will develop advanced 3D visualization and simulation tools for geospatial, satellite, and RF-based systems.\n\nResponsibilities\n\nDesign and develop real-time 3D visualization platforms using Three.js for:\n\nSatellite orbits and trajectories\n\nAntenna cones, beam patterns, and coverage volumes\n\nLine-of-sight and obstruction modeling\n\nBuild full-stack systems connecting Python-based simulation engines to web-based visualization clients (WebSockets, APIs, streaming pipelines).\n\nDevelop and optimize geometry and spatial algorithms, including:\n\nCoordinate transforms (ECEF, ENU, azimuth/elevation)\n\nVolume intersection\n\nVisibility and occlusion detection\n\nHandle large-scale, time-dependent datasets (interpolation, streaming, preloading strategies).\n\nOptimize rendering performance for high object counts and real-time updates.\n\nArchitect backend services for simulation, data ingestion, and preprocessing.\n\nGuide system design decisions and mentor junior engineers.\n\nRequired Skills/Qualifications\n\nUS Citizen\n\nAbility to obtain a TS/SCI with polygraph\n\nBS STEM (Science, Technology, Engineering, or Math) in engineering discipline\n\n5+ years of software development experience\n\nStrong expertise in JavaScript/Typescript and Three.js (WebGL)\n\nStrong proficiency in Python for simulation, numerical computation, or backend services\n\nDeep understanding of 3D math and spatial reasoning, including:\n\nVector math, coordinate systems, transformations\n\nSpherical geometry and geospatial calculations\n\nExperience building real-time or near-real-time systems.\n\nStrong algorithm development and problem-solving skills, especially for geometry-heavy problems.\n\nExperience with full-stack development (REST APIs, WebSockets, client-server architecture).\n\nDesired Skills/Qualifications\n\nTS/SCI with polygraph\n\nExperience with:\n\nSatellite systems, orbital mechanics, or geospatial platforms\n\nRF/antenna modeling or signal propagation\n\nScientific visualization or simulation systems\n\nFamiliarity with:\n\nPyVista, VTK, or similar for backend 3D processing\n\nGPU concepts (shaders, GLSL, WebGPU)\n\nExperience with Dockerized deployments and production systems\n\nBackground in physics, aerospace, or related technical domains\n\nFTS International, LLC is an Equal Opportunity Employer - vets/disabled.\n\n#J-18808-Ljbffr","company":"International Executive Service Corps","rawCompany":"international executive service corps","city":"Chantilly","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-07-02T03:33:32.389Z","occupations":[{"code":"15-1299.02","title":"Geographic Information Systems Technologists and Technicians","slug":"geographic-information-systems-technologists-and-technicians"},{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"17-1021.00","title":"Cartographers and Photogrammetrists","slug":"cartographers-and-photogrammetrists"}],"industries":[{"code":"541330","title":"Engineering Services","slug":"engineering-services"},{"code":"541370","title":"Surveying and Mapping (except Geophysical) Services","slug":"surveying-and-mapping-except-geophysical-services"},{"code":"541690","title":"Other Scientific and Technical Consulting Services","slug":"other-scientific-and-technical-consulting-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Visualization & Simulation Software Engineer (Geospatial/RF Systems)","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.\n\nFTS has an opportunity for a Visualization & Simulation Software Engineer (Geospatial/RF Systems) in Chantilly, VA.\n\nThe Visualization & Simulation Software Engineer (Geospatial/RF Systems) will develop advanced 3D visualization and simulation tools for geospatial, satellite, and RF-based systems.\n\nResponsibilities\n\nDesign and develop real-time 3D visualization platforms using Three.js for:\n\nSatellite orbits and trajectories\n\nAntenna cones, beam patterns, and coverage volumes\n\nLine-of-sight and obstruction modeling\n\nBuild full-stack systems connecting Python-based simulation engines to web-based visualization clients (WebSockets, APIs, streaming pipelines).\n\nDevelop and optimize geometry and spatial algorithms, including:\n\nCoordinate transforms (ECEF, ENU, azimuth/elevation)\n\nVolume intersection\n\nVisibility and occlusion detection\n\nHandle large-scale, time-dependent datasets (interpolation, streaming, preloading strategies).\n\nOptimize rendering performance for high object counts and real-time updates.\n\nArchitect backend services for simulation, data ingestion, and preprocessing.\n\nGuide system design decisions and mentor junior engineers.\n\nRequired Skills/Qualifications\n\nUS Citizen\n\nAbility to obtain a TS/SCI with polygraph\n\nBS STEM (Science, Technology, Engineering, or Math) in engineering discipline\n\n5+ years of software development experience\n\nStrong expertise in JavaScript/Typescript and Three.js (WebGL)\n\nStrong proficiency in Python for simulation, numerical computation, or backend services\n\nDeep understanding of 3D math and spatial reasoning, including:\n\nVector math, coordinate systems, transformations\n\nSpherical geometry and geospatial calculations\n\nExperience building real-time or near-real-time systems.\n\nStrong algorithm development and problem-solving skills, especially for geometry-heavy problems.\n\nExperience with full-stack development (REST APIs, WebSockets, client-server architecture).\n\nDesired Skills/Qualifications\n\nTS/SCI with polygraph\n\nExperience with:\n\nSatellite systems, orbital mechanics, or geospatial platforms\n\nRF/antenna modeling or signal propagation\n\nScientific visualization or simulation systems\n\nFamiliarity with:\n\nPyVista, VTK, or similar for backend 3D processing\n\nGPU concepts (shaders, GLSL, WebGPU)\n\nExperience with Dockerized deployments and production systems\n\nBackground in physics, aerospace, or related technical domains\n\nFTS International, LLC is an Equal Opportunity Employer - vets/disabled.\n\n#J-18808-Ljbffr","datePosted":"2026-07-02T03:33:32.389Z","dateModified":"2026-07-02T03:33:32.389Z","hiringOrganization":{"@type":"Organization","name":"International Executive Service Corps","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Chantilly","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"00a0436925b503be471e6ba7"},"url":"https://jobsearcher.com/jobs/00a0436925b503be471e6ba7"}}