Full Stack Web Developer (Washington, DC; Pomona, NJ)

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 . AS&T is an EOE - M/F/D/V AS&T Offers a first class benefits package, competitive salary and bonus incentives.