Full-Stack AI Engineer — Generative & Production Apps

J Harlan Group, LLC; New York (NY); On-site; USD 225,000 - 325,000; Full time

Job summary

J Harlan Group, LLC in New York City seeks a Full-Stack Software Engineer—Generative AI to build production AI applications and services across the firm.

The role spans frontend and backend, APIs, and data systems, with hands-on work turning LLM capabilities into reliable, scalable software.

You’ll collaborate with engineers, product teams, and researchers to deliver high-value AI solutions, with opportunities to work on RAG, agents, and tool orchestration.

Qualifications

• Strong foundation in full-stack software development and production-grade systems.
• Experience building production-quality software across design, development, testing, deployment, and maintenance.
• Interest in Generative AI, LLMs, and AI-powered software.

Responsibilities

• Design, build, and deploy AI-powered applications and services.
• Develop full-stack apps, UIs, APIs, and backend services.
• Ensure reliability, scalability, security, and observability of AI solutions.
• Collaborate with engineers, product teams, researchers, and business stakeholders.

Skills

Full-Stack development

Generative AI

LLMs

APIs

UI/UX

Cloud infrastructure

Python

JavaScript/TypeScript

React/Next.js

Node.js

REST APIs

SQL/NoSQL

AWS

Tools

Claude Code

Codex

Cursor

GitHub Copilot

AI platform

Job description

J Harlan Group, LLC in New York City seeks a Full-Stack Software Engineer—Generative AI to build production AI applications and services across the firm.

The role spans frontend and backend, APIs, and data systems, with hands-on work turning LLM capabilities into reliable, scalable software.

You’ll collaborate with engineers, product teams, and researchers to deliver high-value AI solutions, with opportunities to work on RAG, agents, and tool orchestration.