Lead Applied AI Engineer at Junior AI (New York, NY)
Junior AI· New York, NY·
Role details
Competitive Pay · Equity · Private Healthcare · Gym Membership · In-Office Cook · Summers Working In Greece
Summary
As one of the first AI/ML hires, you will build LLM-powered tools for investment research, including search ranking algorithms, prompt optimization systems, and knowledge graphs. You will collaborate with external partners, shape engineering culture, and drive product decisions in a client-facing role.
Job description
👶 About Junior Junior is building the AI operating system for investment research. Our software helps private equity firms, consultants and financial institutions complete high-stakes research workflows dramatically faster - from diligence and memo writing to market mapping, research synthesis and strategic analysis. We’re trusted by 20/30 Top Global PE Funds by AUM & 18/20 Top Global Strategy Consultants
- Bootstrapped and profitable
- $25M+ in revenue after growing 10x last year
- 70+ people across the company
- 25-person engineering team
- Join as our third Applied AI hire!
💡 Role Description As one of our first AI/ML hires, you'll have the unique opportunity to:
- Move quickly from research to production
- Freedom to experiment with new approaches and stay current with the latest research.
- Raise the quality bar for AI systems used by the world’s leading PE/Consulting firms.
- Collaborate closely with our customers and shape the product direction
Sample set of projects
- State-of-the-art transcription using ensembles of frontier models.
- Voice agent for market research interviews that identifies gaps, knows where to probe, and develops new hypotheses.
- Self-improving AI systems where product usage feeds back into evaluations and optimization.
- Agentic entity-resolution system that combines in-app and web context to resolve mistranscribed company names and aliases
🔥 About You We're looking for product-minded AI/ML engineers who:
- Based in NYC
- Are opinionated about their work and eager to contribute to product decisions
- Have strong communication skills and a desire for a client-facing role
- Are able to break down AI/ML problems for a non-technical audience clearly and succinctly, and translate their suggestions into testable experiments.
- Have experience building LLM systems from the ground up in a product-focused organization, and can help drive everything from data gathering / logging → prompt optimizing
- Have a strong bias to action, highly organised and experienced working with senior stakeholders to deliver large projects end to end
- Excited to build a team
🌵 Benefits
- Private health insurance
- Equinox gym membership
- 401k match
- Dinner provided when working late
- Team lunch provided every day at the office
- Bi-annual international off-sites, recently including Crete and Cancún
📩 How to Apply If you’re excited to drive innovation at Junior, we’d love to hear from you!
Why work at Junior AI
- Culture: "Small team, big ownership" – end-to-end ownership from conception to deployment; ship meaningful work immediately
- Values: Ship Fast, Show Your Work, Open by Default, Customer First, Velocity over Perfection, Meritocracy, Radically Transparent, Own It
- Work environment: In-office at NYC headquarters (HQ in New York, all jobs listed as "In-Office" on Built In)
- Engineering culture: Weekly deployments, "fix fast", AI-native tech stack, direct customer interaction
- Perks: Not explicitly listed, but emphasis on solving real problems, no politics, visible roadmaps and metrics
- Growth: 30% MoM growth, seed-stage startup with clear product-market fit, opportunity to shape the company