Full Stack Software Engineer — AI-Native Platform

Job overview

The Full Stack Software Engineer role is listed for NYC or San Francisco; the listing identifies San Francisco, CA, and does not specify a remote arrangement. Compensation is not specified. The client is a Series A startup building an AI-native intelligence platform for the investment industry that organizes fragmented financial information into a searchable knowledge engine. The engineer builds product features across frontend applications, backend services, data pipelines, and production AI workflows. The work helps investment professionals research opportunities and analyze information through integrated, traceable AI-powered tools.

What you'll do

• Design user interfaces with React and TypeScript
• develop backend services and APIs using Python and Node.js
• build document ingestion pipelines and data models
• integrate with ChatGPT, Claude, Excel, and other enterprise applications
• develop AI-powered search, research, and agentic workflows
• create evaluation frameworks for LLM accuracy and reliability
• enable tracing AI-generated answers to source documents
• work directly with customers
• maintain security, privacy, and reliability
• and own features from architecture through deployment and iteration.

What we're looking for

Skills & competencies

full stack software engineer

ai-native platform

react

typescript

python

node.js

llms

data pipelines

financial technology

customer-facing applications

san francisco ca

series a startup

Work arrangement

• Weekend coverage required

Why this role

Opportunity to join as one of the first 20 engineers at a Series A startup and help shape architecture, product experience, and engineering culture.

About the employer

NxT Level is hiring for this role. Industry: Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services. Sector: 51.