Demo

Senior Software Engineer

Mentor Talent Acquisition
York, NY Full Time
POSTED ON 1/9/2026
AVAILABLE BEFORE 9/12/2026

This is an opportunity to join a profitable, early-stage company building LLM-powered tools that transform how private market investors conduct research. The platform is used by top-tier private equity and consulting firms responsible for investing billions of dollars annually.

The team is small (17 people), distributed between NYC and London, and focused on shipping high-impact products quickly.


Role Description

As one of the first engineering hires, the Senior Full-Stack Engineer will have significant ownership and influence across both product and engineering.


Key responsibilities include:

  • Shipping quickly and iterating based on real user feedback
  • Designing and building new ways for users to interact with computers
  • Working on production-grade LLM-powered systems
  • Collaborating closely with external partners and end users
  • Contributing to product decisions, prioritization, and technical direction
  • Helping shape engineering culture and best practices


Sample Projects

  • Building new products to ingest and process diverse research inputs
  • Developing a low-latency voice-to-voice survey system capable of autonomous, high-volume research
  • Building a mobile application from scratch in a short timeframe
  • Creating segmented knowledge graphs from unstructured → structured data
  • Developing an AI-native CRM system integrated with internal knowledge systems


About the Ideal Candidate

The ideal candidate is a product-minded Senior Full-Stack Engineer who:

  • Is based in NYC and open to working onsite 5 days/week
  • Has experience leading projects end-to-end
  • Enjoys contributing to product decisions and user experience
  • Communicates clearly and is comfortable in client-facing contexts
  • Is proficient with Next.js, TypeScript, and PostgreSQL
  • Moves fast and thrives in a high-ownership environment


Bonus experience:

  • Building or designing AI-powered products
  • Working in early-stage or high-growth startup environments

Salary.com Estimation for Senior Software Engineer in York, NY
$106,305 to $127,409
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