Join a high-growth engineering team building the AI-native infrastructure for the world’s top private equity firms and financial institutions. As an early hire, you will design groundbreaking LLM workflows, move from concept to production in weeks, and directly influence the product roadmap for a profitable startup that grew 10x in 2025.
Full Stack Engineer at Myjunior
Join one of the fastest-growing AI startups in New York City as an early Full Stack Engineer. This bootstrapped powerhouse grew 10x in 2025 to $10M+ in revenue and is now building the AI operating system for the world’s top private equity firms. You'll ship frontier products using LLMs and knowledge graphs, enjoy a salary up to $190K plus equity, and experience unique perks like an in-office cook and summers working from the beach in Greece. If you're a high-velocity builder ready to move from concept to production in weeks, this is your next career-defining move.
About this role
Role overview
About the company
Profitable, bootstrapped AI operating system for investment research with $10M+ revenue and 10x annual growth.
What you'll do
What you will do
- Design and ship frontier AI products, such as low-latency voice-to-voice research tools and segmented knowledge graphs from unstructured data.
- Collaborate directly with partners at global private equity firms and Big 4 consultancies to refine high-stakes research workflows.
- Rapidly prototype and deploy new features, including building mobile applications from scratch and creating AI-native CRM systems with deep knowledge graph links.
Who you are
Who this is a fit for
- Product-minded engineer based in New York City with strong proficiency in Next.js, TypeScript, and PostgreSQL.
- Excellent communicator who thrives in client-facing interactions and is eager to contribute to strategic product prioritization and direction.
- High-velocity builder with a passion for LLMs who feels like they are never building fast enough and has experience designing AI-powered products.
Why this role
Why this role is remarkable
- Rare opportunity to join a highly profitable, bootstrapped startup that has already scaled to over $10M in revenue with 10x growth in 2025.
- Exceptional culture with unique perks including an in-office cook, full gym membership, and summers spent working from a beach in Greece.
- High-impact role as one of the first engineering hires, directly shaping the technical architecture and culture of the next AI operating system for finance.
Jack & Jill
How Jack & Jill work together
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
How does this work?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If it’s a match and the company wants to meet you, they’ll make the intro. In the meantime, if you’d like, Jack will send you excellent alternatives.