Full Stack Web Developer

Job Title: Full Stack Web Developer (Geospatial/3D Visualization Focus) 

Location: Hybrid / On Site (EHT, NJ or Washington, DC) 

Employment Type: Full-time (W-2) or 1099 Contractor (flexible based on candidate preference and project needs) Experience Level: Mid-level to Senior (3–8+ years preferred) 

About the Role 

We are seeking a talented Full Stack Web Developer to design, build, and maintain scalable web applications from user interface to database and deployment. You will be responsible for features end-to-end, with a focus on interactive, data-driven experiences —particularly those involving 3D geospatial visualization, mapping, or terrain rendering. Collaborate with product, design, and other engineers to deliver high-quality, responsive applications that drive business value. 

In 2026, strong full-stack developers combine solid fundamentals with modern tooling (TypeScript, component-based UIs, cloud deployment) and awareness of specialized libraries like CesiumJS for 3D earth/globe visualizations. 

Key Responsibilities 

• Design and develop responsive, accessible front-end interfaces using modern JavaScript frameworks 

• Build and maintain back-end services, APIs, authentication, and business logic 

• Create, optimize, and query databases (SQL and/or NoSQL) 

• Integrate front-end with back-end services and third-party APIs (including geospatial data sources) 

• Write clean, maintainable, testable code following best practices 

• Perform debugging, performance optimization, and cross-browser/device testing 

• Participate in code reviews, architectural decisions, and agile processes (sprints, stand-ups) 

• Deploy and monitor applications (CI/CD, cloud platforms, basic DevOps tasks) 

• Troubleshoot production issues and implement fixes 

• Collaborate with UI/UX designers, product managers, and other developers 

• Stay current with emerging technologies (especially in 3D/web geospatial tools) and suggest improvements 

Required Skills & Qualifications 

• 3–8+ years of professional experience in full-stack web development 

• Strong proficiency in JavaScript/TypeScript (TypeScript is essentially mandatory in most professional stacks) 

• Front-end expertise: 

• HTML5, CSS3 (Tailwind CSS, CSS-in-JS, or modern styling solutions) 

• React.js (most common), Next.js, Vue.js, or Angular 

• Back-end expertise (one or more): 

• Node.js + Express / NestJS 

• Python (Django / FastAPI / Flask) 

• Java / Spring Boot 

• Go, Ruby on Rails, or .NET (less common but still relevant) 

• API design & consumption: REST, GraphQL, WebSockets 

• Databases: PostgreSQL/MySQL (SQL), MongoDB or similar (NoSQL) 

• Version control: Git (GitHub/GitLab/Bitbucket workflows) 

• Testing: Unit/integration/end-to-end (Jest, React Testing Library, Cypress, etc.) 

• Deployment & tools: Docker basics, AWS/GCP/Azure (at least one), Vercel/Netlify, CI/CD pipelines 

• Understanding of responsive design, accessibility (WCAG), SEO basics, and web performance 

• Strong problem-solving skills and ability to learn quickly 

Preferred Experience 

• Experience with CesiumJS (including its APIs, 3D globe/terrain rendering, CZML/GeoJSON data handling, entity management, and integration with React/Resium—highly desirable for geospatial or visualization-heavy projects) 

• Experience with Next.js (App Router) or similar full-stack React frameworks 

• TypeScript in both front- and back-end codebases 

• Authentication/authorization (JWT, OAuth, NextAuth/Auth.js, Clerk, Supabase Auth) 

• State management (Redux Toolkit, Zustand, React Query / TanStack Query) 

• Cloud services (serverless, S3, Lambda, RDS, etc.) 

• Basic DevOps (Docker, Kubernetes awareness, Terraform basics) 

• Familiarity with AI tooling (GitHub Copilot, Cursor, Claude, etc.) for productivity 

• Experience building real-world apps: e-commerce, dashboards, SaaS products, auth + payments, or geospatial/mapping/3D visualization tools 

• Mobile-responsive or progressive web app (PWA) experience 

• Geospatial data knowledge (e.g., GeoJSON, 3DTiles, imagery integration) 

Education 

Bachelor’s degree in Computer Science, Engineering, GIS/Geospatial, or related field (or equivalent practical experience) 

What We Offer (Typical Range) 

• Competitive compensation: 

• W-2 full-time: $75,000–$135,000+ base (depending on location/experience/level) + benefits 

• 1099 Contractor: $55–$85+/hour (depending on scope, expertise, and project duration; potential for long-term extensions) 

• Health benefits, 401(k) matching, PTO (for W-2); flexible terms for 1099 

• Remote-friendly options, professional development budget 

• Opportunity to work on meaningful products with modern tech stack, including cutting-edge 3D geospatial applications 

AS&T is an EOE/AA Disability/Veteran

AS&T is committed to providing a work environment that is free from unlawful discrimination and harassment in any form. AS&T will make reasonable accommodations for qualified individuals with disabilities unless doing so would result in an undue hardship. If you are interested in applying for employment and feel you need a reasonable accommodation pursuant to the ADA, you are encouraged to contact us at

admin@adv-sci-tech.com