Senior Full Stack Engineer
About Junior
We're building cutting-edge LLM-powered tools that supercharge investment research for the world's most demanding deal teams. Our clients include several of the top 10 global private equity firms, Big 4 professional services firms, and leading consulting practices: organisations responsible for deploying billions of dollars annually. We're a profitable, bootstrapped company with a growing team of ~28 people based in London and New York. We 10x'd our revenue in 2025 and are on track to grow 2-3x again this year.
Role Description
As one of our first engineering hires, you'll have the unique opportunity to:
- Ship quickly
- Design and build new modes of working with computers
- Work on groundbreaking projects involving LLMs
- Collaborate closely with our external partners to fuel our growth
- Contribute to product decisions, direction and prioritization
- Shape our engineering culture
Sample set of projects
- Build new frontier products at Junior to ingest more types of research inputs
- Build a voice-to-voice survey tool with extremely low latency that can autonomously conduct high volume of research tasks
- Create a mobile app from scratch in 3 weeks
- Build segmented knowledge graphs built on top of the output of unstructured ⇒ structured data transformations
- Create an AI native CRM system with deep links to the knowledge graph above
About You
We're looking for product-minded full-stack engineers who:
- Are based in NYC
- Are eager to contribute to product decisions
- Have strong communication skills and a desire for a client-facing role
- Are proficient in our tech stack: Next.js, TypeScript, PostgreSQL
- Have experience building & designing AI-powered products (bonus points)
Bonus
If you're excited about the opportunity to drive innovation at Junior, we'd love to hear from you!
We can't wait to meet you!