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