Remote Senior Full-Stack AI Engineer (React/Next.js)

Connexions Data; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

Connexions Data is seeking an experienced Full Stack AI Engineer to design, build, and scale production-grade AI apps. You will work on frontend/backend with React/Next.js, TypeScript, Node.js, and Python, integrating LLM APIs and RAG pipelines.

You will collaborate with AI/ML and product teams to deliver secure, scalable, high-performance AI-powered applications with real-time interfaces and multi-tenant architectures.

Qualifications

• 8+ years of professional software development experience.
• Strong hands-on experience with React and TypeScript.
• Experience building REST APIs and asynchronous backend services.
• Experience integrating LLM/Generative AI APIs into production apps.
• Knowledge of multi-tenant architectures and AI workflows.

Responsibilities

• Design, develop, and maintain scalable full-stack AI applications using React, Next.js, TypeScript, Node.js, and Python.
• Build responsive, accessible frontend applications with real-time features.
• Own UI development lifecycle from wireframes to production deployment.
• Develop real-time conversational interfaces using SSE and WebSockets.
• Implement token-level streaming for real-time AI rendering.
• Design RESTful APIs and asynchronous backend services.
• Integrate LLM APIs, tool calling, structured outputs, and multi-step AI workflows.
• Build and optimize RAG pipelines, vector search, embeddings, and AI agents.
• Collaborate with AI/ML teams to integrate structured JSON outputs into frontend.

Skills

React

TypeScript

Next.js

Node.js

Python

LLM APIs

WebSockets

API Design

AI Orchestration

Multi-tenant Architecture

Education

Bachelor's / Master’s in Computer Science or related field

Tools

Docker

CI/CD

Cloud-Native Deployment

Vector Databases

Job description

Connexions Data is seeking an experienced Full Stack AI Engineer to design, build, and scale production-grade AI apps. You will work on frontend/backend with React/Next.js, TypeScript, Node.js, and Python, integrating LLM APIs and RAG pipelines.

You will collaborate with AI/ML and product teams to deliver secure, scalable, high-performance AI-powered applications with real-time interfaces and multi-tenant architectures.