Founding Engineer ($170k-$200k + Equity) at Proximitty

Job Title: Founding Engineer

About the role

Proximitty is a YC W26-backed fintech company building autonomous AI operating systems for the $3T commercial lending market. Founded by veterans from McKinsey and Bloomberg, the company is backed by CRV and angels from Stripe and OpenAI, already tracking toward seven-figure ARR by automating legacy banking workflows for major US financial institutions.

Responsibilities

• Architect and ship frontier AI agents that automate complex commercial loan lifecycles.
• Own the product end-to-end, from document ingestion to real-time credit decisioning.
• Work directly with founders and banking clients to deploy autonomous infrastructure in high-stakes, regulated environments.

Requirements

• Strong background in full-stack and distributed systems engineering, specifically using TypeScript and AWS for production applications.
• Deep curiosity for frontier AI agentic architectures and the ability to build reliable "computer-use" agents for brittle legacy systems.
• A founding-engineer mindset that thrives on ownership, customer empathy, and shipping fast without over-engineering or premature optimization.

Qualifications

• Experience with TypeScript and Next.js.
• Experience with AWS for production applications.
• Experience with building and deploying autonomous AI agents in high-stakes, regulated environments.

Skills

• Full-stack and distributed systems engineering skills.
• Experience with TypeScript and AWS.
• Experience with building and deploying autonomous AI agents.
• Ability to work in high-stakes, regulated environments.

Benefits

• High-traction team backed by top-tier investors like Y Combinator and CRV.
• Direct path to seven-figure ARR.
• High-trust, low-overhead culture with no standups, fully expensed meals, and a culture that prioritizes physical health and wellbeing.

Pay

• $170k-$200k + Equity

Schedule

• Remote work with occasional travel to major banks.

Benefits

• No standups, fully expensed meals.
• Culture prioritizing physical health and wellbeing.