1mo
Save
Mark Applied
Hide
Visualization & Simulation Software Engineer (Geospatial/RF Systems)
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEUS citizen with BS in engineering, 5+ years software development, strong JavaScript/TypeScript and Three.js skills, Python proficiency, 3D math and spatial algorithms, full-stack (REST APIs/WebSockets), and ability to obtain TS/SCI with polygraph.
Three.js, JavaScript, TypeScript, Python, WebSockets, REST APIs, WebGL, PyVista, VTK, Docker, GLSL, WebGPU
1mo
Save
Mark Applied
Hide
Senior Frontend Software Engineer - Ground Software
Laurel or Austin or Greenwood Village
$120k-$190k/yr HybridFull Time
6+ YOERequired: Bachelor's in CS or related, 6+ years frontend experience, deep React and TypeScript, design system and component library experience, Yarn/Babel/Material-UI, Git, REST APIs, mentoring ability, and ability to obtain security clearance.
React, TypeScript, C# .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, TanStack Query, WebAssembly (WASM), WebGL
3w
Save
Mark Applied
Hide
Modeling & Simulation Engineer (Systems Engineer, Sr)
Chantilly, Virginia, United States
OnsiteFull Time
1+ YOEBachelor's in STEM preferred, 1+ years building physics‑based models or simulation engines, experience with MBSE/SysML, numerical methods, V&V, and cross‑disciplinary collaboration.
MATLAB/Simulink, Python, NumPy, SciPy, JAX, C++, STK, GMAT, Orekit, Trick, Modelica, CUDA, Vulkan, OpenCL, REST, gRPC, GraphQL, Three.js, WebGL, React Three Fiber, CesiumJS, Cameo, Teamwork Cloud, Jama, DOORS, MBSE, SysML
3d
Save
Mark Applied
Hide
Senior Frontend Platform Engineer
North America or San Francisco or Los Angeles or New York City or Washington or London or Singapore
$210k-$230k/yr RemoteFull Time
Strong JavaScript/TypeScript, React, experience building data-dense visualization platforms with Canvas/WebGL and graph visualization libraries; performance optimization and platform/SDK design experience required.
JavaScript, TypeScript, React, Canvas, WebGL, GPU, Web Workers, D3, PixiJS, Three.js, D3-force, Cytoscape.js, vis.js, Sigma.js
1mo
Save
Mark Applied
Hide
Senior Front End Angular Engineer
McLean, Virginia, United States
HybridFull Time
5+ YOE5+ years front-end experience (3+ years with Angular); deep RxJS and TypeScript v5+ expertise; experience with Angular Signals, PrimeNG, Chart.js, modern CSS/SCSS, accessible HTML, and front-end performance optimization; familiarity with AI dev tools.
Angular, RxJS, TypeScript, CSS, SCSS, HTML, PrimeNG, Chart.js, Cursor.ai, Three.js, WebGL, Golden layout, Infragistics Ignite UI for Angular, AG Grid, C#, .NET 10, WebAssembly (WASM)
1mo
Save
Mark Applied
Hide
SAP NS2 Full Stack Developer - Top Secret, CI Polygraph required
Herndon or Springfield or Washington
$107k-$231k/yr OnsiteFull Time
3+ YOE3–5 years software development experience; proficiency with JavaScript/Node.js and Express, front-end frameworks (React/Vue/Angular), SAP HANA/SQLScript, Docker and OpenShift, PKI/X.509 and mTLS, RHEL administration, Git workflows.
SAP HANA, SQLScript, SAP CAP, Node.js, Express.js, OpenCV, pngjs, Docker, Red Hat OpenShift, RHEL, OpenShift Container Registry, SAP HANA client driver, X.509, mTLS, CAC/PIV, HTML5, CSS3, React, Vue, Angular, D3.js, Three.js, WebGL, Apache NiFi, KNIME, Airflow, Talend, Git, GitHub, PowerShell, Bash, Docker Compose, XSA, OpenShift Operators, Helm
4d
Save
Mark Applied
Hide
Application Developer - JavaScript
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$84k-$141k/yr OnsiteFull Time
2+ YOE2+ years web development with JavaScript (TypeScript preferred); experience with modern frameworks, CI/CD, foundational cartography/visualization knowledge, bachelor's degree, and ability to travel up to 25–50%.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, React, Angular, Svelte, Vue, WebGL, ArcGIS Experience Builder, CI/CD
2mo
Save
Mark Applied
Hide
Scientific Software Developer (DC, NoVA)
Tysons, Virginia, United States
OnsiteFull Time
Ph.D., M.S., or B.S. in a scientific or engineering field; strong C++ OO design; substantial software development; modern C++20/23; U.S. citizen; background check; government-site work.
C++, C++20, C++23, TypeScript, Python, Java, Boost, Eigen, Linux, Windows, Mac, OpenGL, OpenSceneGraph, WebGL, Qt, Java Swing, Material UI, OpenMP, MPI, CUDA
1mo
Save
Mark Applied
Hide
Senior Visuals Developer, CNN
Atlanta or New York City or Washington
$80k-$148k/yr HybridFull Time
7+ YOE7+ years interactive/front-end development experience with a strong portfolio; expertise in HTML, CSS, JavaScript, modern front-end frameworks, Git, and 3D/spatial tools (WebGL, Three.js, Mapbox GL, MapLibre, deck.gl). Strong communication, accessibility, responsive design, and collaboration skills; Python familiarity a plus.
WebGL, Three.js, Mapbox GL, MapLibre, deck.gl, HTML, CSS, JavaScript, Python, Git
3w
Save
Mark Applied
Hide
Sr. Front-End Software Engineer (Geospatial & Middleware)
Sterling, Virginia, United States
OnsiteFull Time
8+ YOEActive Top Secret clearance, Bachelor’s in CS or related,8+ years front-end experience, strong JavaScript and modern frameworks, Protobuf and middleware experience, experience with Kafka/RabbitMQ/ActiveMQ/ZeroMQ, API development, geospatial UI experience.
JavaScript, React, Angular, Vue, Protobuf, Apache Kafka, RabbitMQ, ActiveMQ, ZeroMQ, gRPC, FlatBuffers, Avro, GitLab, AMQP, MQTT, Data Distribution Services, Cesium JS, Open Layers, Leaflet, Mapbox, WebGL
2mo
Save
Mark Applied
Hide
Sr Applications Developer
Silver Spring or United States
$125k-$145k/yr HybridFull Time
5+ YOE5+ years web application development; JavaScript/TypeScript; React/Angular/Vue; AWS; REST; geospatial visualization; GenAI experience.
JavaScript, TypeScript, React, Angular, Vue.js, AWS, WebGL, Canvas, Three.js, D3.js, GeoJSON, REST API, GenAI, Docker, Kubernetes
1mo
Save
Mark Applied
Hide
Cloud Software Engineer
Columbia or Laurel
$115k-$155k/yr OnsiteFull Time
3+ YOEActive Top Secret (TS/SCI) with polygraph required, U.S. citizenship required. Bachelor's in a technical discipline (or +2 years experience), 3 years software development, experience with Java, Kotlin, TypeScript, React/Redux, Protobuf, WebSocket, WebGL, Git; willing to obtain AWS/Kubernetes certifications.
Java, Kotlin, TypeScript, React, Redux, Protobuf, WebSocket, WebGL, Git, Kubernetes, AWS
1mo
Save
Mark Applied
Hide
Principal Designer (R5250)
United States or San Diego or San Francisco or Dallas or Washington
$230k-$340k/yr OnsiteFull Time
12+ YOE12+ years designing and building production software interfaces; expert React/TypeScript; hands-on LLM/agentic experience; portfolio of shipped tools; user research, Linux, Docker, cloud, Git, CI/CD; travel 1-3x/quarter.
React, TypeScript, C++, Go, Python, LLM, Linux, Docker, Azure, GCP, AWS, Git, CI/CD, WebSockets, Server-Sent Events, D3, WebGL, Electron
2w
Save
Mark Applied
Hide
Software Engineer - Frontend Development
Reston, Virginia, United States
OnsiteFull Time
2+ YOEBachelor's in computer science, 2 years relevant experience, JavaScript/TypeScript, React, HTML/CSS, strong communication, US citizenship and eligibility for security investigation.
JavaScript, TypeScript, React, HTML, CSS, Spring Boot, Redux, WebGL, OpenGL, Java, Python
2w
Save
Mark Applied
Hide
Unity 3D Developer Intern
Fredericksburg, Virginia, United States
$21-$30/hr OnsiteInternship
Obsidian Solutions Group: Delivers technology-enabled and mission-oriented solutions to government agencies.
Currently enrolled senior or recent graduate in CS/Software Engineering, experience with Unity and C#, familiarity with Git, portfolio/GitHub required, strong problem-solving and communication skills.
Unity, C#, Git, GitHub, VERTEX, WebGL, Android, REST API, Blender, Maya, AR/VR