Senior / Staff AI Software Engineer

Ascertain (Headquarters: New York, NY - Hybrid)

Location: New York, NY (Hybrid)   |   Full-Time   |   $180,000 - $280,000
Python AI LLM Agents RAG Embeddings Machine Learning Productionizing AI AI Engineer Data Science

About Ascertain: Ascertain is a healthcare AI startup backed by Northwell Health and Deerfield Management. We build an automation platform powered by AI to handle administrative tasks in healthcare, freeing clinicians from paperwork. We’re a small, tight-knit team with a hybrid work model.

About The Role: We are seeking a Senior / Staff AI Software Engineer to join our team. You will play a key role in productionizing AI/LLM applications, building ML systems that ship, and contributing to our automation platform for healthcare operations. This is an opportunity to significantly impact healthcare using cutting-edge AI while working with a passionate team.

Responsibilities:

  • Design, build, and deploy AI/LLM applications for healthcare automation
  • Productionize AI systems (agents, RAG, embeddings) for real-world use cases
  • Develop ML systems that handle complex healthcare workflows
  • Work on document processing, payer form automation, and rejection explanation
  • Build components for patient discharge planning
  • Ensure AI systems are safe, observable, and incorporate human-in-the-loop functionality
  • Collaborate with cross-functional teams to define requirements and solutions

Requirements:

  • Proven experience in productionizing LLM applications
  • Solid Python expertise with experience in ML system development
  • Deep understanding of how to build reliable ML systems
  • Experience with AI/ML concepts and production challenges
  • Ability to work in ambiguous, open-ended problems
  • Strong technical foundation in machine learning and AI principles

Compensation:

Post Date: June 10, 2025