Senior Full-Stack Software Engineer – AI-Native Fintech Platform

Software Engineer – AI-Native Fintech

Location: Seattle, WA — 5 days/week onsite

Compensation: $140K–$220K base + 0.02%–0.25% equity

Experience: 5–10 years

About the Opportunity

We're partnering with a fast-growing AI startup building the AI-native operating system for institutional capital. Their platform helps investment teams at organizations like universities, hospitals, retirement systems, and wealth managers replace highly manual reporting, analysis, and reconciliation workflows with AI-powered automation.

This is an opportunity to join a small, highly technical team where engineers have significant ownership and work directly with the customers using what they build. You'll work across the entire product—from systems that understand hundreds of thousands of financial documents to AI agents capable of turning a client's request into a finished report.

The company has approximately $1M in ARR with zero customer churn and is building a product that is already delivering significant efficiency gains for its customers.

What You'll Do

• Own features and products end-to-end across backend, frontend, infrastructure, and AI
• Build and improve AI agents that perform complex analysis and knowledge work
• Develop systems that process and understand large volumes of financial documents and institutional data
• Work directly with customers to understand problems and rapidly turn them into production solutions
• Make key technical and product decisions in a highly autonomous engineering environment
• Use AI extensively throughout the development process to move from idea to production quickly
• Take responsibility for the quality and performance of what you ship

What We're Looking For

• 5–10 years of full-stack software engineering experience
• Experience owning and shipping production software end-to-end
• Strong technical judgment and problem-solving ability

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• High level of ownership, initiative, and personal accountability
• Comfortable working through ambiguous problems without a detailed roadmap
• Ability to move quickly while maintaining high standards
• Interest in working closely with customers and seeing your work used in production
• Excited about AI-native software development and using AI as a core part of the engineering process

Tech Stack: Python, React, TypeScript, AWS, PostgreSQL, MongoDB

A specific technology background or previous finance experience is not required. The team prioritizes raw technical ability, judgment, work ethic, and ownership over checking every box on a traditional tech-stack list.

Why You'll Love This Opportunity

You'll join a small engineering team where your work can have an immediate impact. There are no layers of product managers, QA teams, or engineering management handing you narrowly defined tasks—you'll have the autonomy to identify problems, determine the right solution, build it, and ship it.

The team is also operating at the forefront of AI-native software development. AI generates much of the code, allowing engineers to focus more heavily on architecture, product decisions, agent behavior, and the judgment required to build reliable systems.

You'll work alongside people with backgrounds in quantitative finance, high-performing engineering organizations, and previous startups, including companies that were acquired by Nasdaq and ADP.

Compensation

Base Salary: $140K–$220K

Equity: 0.02%–0.25%

Location: Westlake, Seattle, WA

Schedule: Full-time, 5 days/week onsite

Core Office Hours: 9 AM–6 PM

Visa: Open to visa transfers, including OPT and H-1B transfers

If you're a high-agency engineer who wants significant ownership, direct customer impact, and the opportunity to build AI products that reach real users quickly, we'd love to connect.