Senior Fullstack Developer Jobs in New York

Position Summary: The Full-Stack AI Engineer is a senior technical individual contributor responsible for designing, building, and maintaining the user-facing applications, backend services, and interactive capabilities that power artificial intelligence across New York University (NYU). This position develops and maintains the core software foundation supporting NYU’s enterprise AI web applications and user experiences—including frontend interfaces, server-side APIs, identity and access management (IAM) integrations, foundation model interactions, user-facing feature sets, and administrative governance tooling. Working within architectural patterns established by the organization and adhering to institutional security and technology standards, the Full-Stack AI Engineer translates product vision and AI architecture into production-ready, accessible, and intuitive web applications. This role is highly hands-on and is expected to design, write, and maintain production code across both client-side and server-side stacks directly. Qualifications: Required Education:
Bachelor's Degree Bachelor's degree in Computer Science, Software Engineering, Web Development, Information Technology, or a related field, or an equivalent combination of education and experience.

Required Experience:
3+ years of progressive experience in full-stack software development, web application engineering, or digital product development, including proven experience delivering production web applications at scale.

Preferred Experience:
3+ years Experience building or customizing enterprise LLM chat applications or workplace AI assistants (similar to ChatGPT Enterprise, LibreChat, or Open WebUI). Experience developing administrative control portals, usage monitoring dashboards, or token/cost management UIs. Prior experience delivering digital products or web applications within a higher-education, research, or complex enterprise institution.

Required Skills, Knowledge and Abilities:
Frontend Engineering: Mastery of modern frontend frameworks (e.g., React, Next.js, Vue.js), modern JavaScript/TypeScript, HTML5, CSS3, and state management libraries. Backend Engineering: Strong expertise in building backend APIs and server side microservices using Python (FastAPI, Flask) and/or Node.js/TypeScript. AI & LLM Integration: Practical experience integrating LLM APIs, building streaming HTTP/WebSocket endpoints, prompt execution frameworks, and retrieval-augmented generation (RAG) applications. Authentication & IAM: Solid understanding of web security fundamentals, CORS, CSRF, JWT, OAuth2, OpenID Connect (OIDC), and enterprise Single Sign-On (SSO) integrations. Database & Caching: Experience working with relational databases (e.g., PostgreSQL), document stores, vector databases (e.g., pgvector, Pinecone, Qdrant), and caching mechanisms (e.g., Redis). UI/UX & Accessibility: Deep understanding of modern user interaction design, responsive UI development, and accessibility standards (WCAG 2.1 AA / ADA compliance). Software Practices: Strong foundation in Git, API design (RESTful, GraphQL), automated testing frameworks (Jest, Playwright, Cypress, PyTest), and containerization (Docker).
Additional Information: In compliance with NYC's Pay Transparency Act, the annual base salary range for this position is USD $170,000.00 to USD $190,000.00. New York University considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as, market and organizational considerations when extending an offer. This pay range represents base pay only and excludes any additional items such as incentives, bonuses, clinical compensation, or other items.

NYU aims to be among the greenest urban campuses in the country and carbon neutral by 2040. Learn more at nyu.edu/nyugreen.

NYU is an Equal Opportunity Employer and is committed to a policy of equal treatment and opportunity in every aspect of its recruitment and hiring process without regard to age, alienage, caregiver status, childbirth, citizenship status, color, creed, disability, domestic violence victim status, ethnicity, familial status, gender and/or gender identity or expression, marital status, military status, national origin, parental status, partnership status, predisposing genetic characteristics, pregnancy, race, religion, reproductive health decision making, sex, sexual orientation, unemployment status, veteran status, or any other legally protected basis. All interested persons are encouraged to apply at all levels.