About Alinea
Alinea is building the investing platform for the next generation. With 2.5M+ downloads, 200K+ funded accounts, and backing from Y Combinator, Goodwater Capital, F7 Ventures, and GFR, Alinea has raised $5.5M and is post-Series A. The product is an investing app built for Gen Z that combines intuitive portfolio tools with AI-powered financial guidance.

About the Role

Alinea is hiring a Founding AI Engineer to own and evolve AI Allie, their in-app AI investing companion. This role sits at the intersection of large language models, financial data, and product experience. You will build systems that help users learn about investing, make better decisions, and engage more deeply with their finances.

This is a full-stack, end-to-end ownership role. You are not a supporting engineer on an existing team; you are the person who decides how AI Allie works, how it scales, and how it gets better. You will work directly with the founding team in a hybrid setup, based in New York, four days per week in the office.

Responsibilities

• Own and ship AI features end-to-end, from whiteboard to production, across the full stack using AI coding agents as much as possible

• Own the architecture and development of AI systems powering AI Allie

• Build and ship LLM-powered product features used by hundreds of thousands of users

• Design retrieval systems that ground model responses in financial data and internal knowledge

• Develop evaluation frameworks to measure model quality, reasoning accuracy, and safety

• Improve model performance, latency, and cost efficiency in production

• Build infrastructure for prompt orchestration, memory, and contextual personalization

• Design guardrails appropriate for financial products and regulated environments

• Pair with customers and internal teams to surface pain points and ship fixes fast

You Might Be a Fit If

• You have built impressive solo or side projects or shipped production AI systems with real users

• You are hungry, curious, and comfortable with minimal structure

• You bias toward shipping: fast feedback, tight loops

• You have strong fundamentals in backend engineering and LLM systems

• You thrive in high-intensity environments and want a direct line to product decisions

What We Offer

• High ownership, direct collaboration with the founding team from day one

• Hybrid work, four days per week in the New York office

• Competitive salary ($160,000 to $220,000) and equity

• Full benefits