---
title: 'Senior Software Engineer, Full-Stack at Supio'
canonical: 'https://feeny.ai/job/senior-software-engineer-full-stack-supio-seattle-e5r74v549h46'
type: 'job'
last_seen: '2026-09-22'
---

# Senior Software Engineer, Full-Stack at Supio

- **Company:** Supio
- **Location:** Seattle, WA
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-09-16
- **Last confirmed live:** 2026-09-22
- **Apply:** https://jobs.gem.com/supio/am9icG9zdDrd7e3Vy4n6C1LwQ6w1pCou

## Job description

Who we're looking for

We're hiring senior/staff, product-minded full-stack engineers to build the core of Supio's platform — a fast-moving, AI-native product used in high-stakes, real-world legal workflows. You build product end-to-end in TypeScript across the stack, from the interfaces customers touch to the services behind them. You're fluent using coding agents in your daily workflow, and you operate with autonomy. You've operated at startup pace and ambiguity at some point in your career and you're excited to build greenfield.

## What you'll build

(scope depends on team placement)

- The core full-stack application customers work in every day
- Agentic platform capabilities spanning voice calling & transcription, medical/financial records extraction, and legal document drafting
- The agent runtime — prompt/tool architecture, skill and prompt management, and cost/performance optimization
- Production features, plus the evaluation, tooling, and monitoring that keep them accurate and observable at scale

You won't just ship features — you'll shape the architecture and technical direction of a fast-evolving platform, with senior autonomy and end-to-end ownership.

## What you'll bring (must-haves)

- 10+ years of professional software engineering experience
- True full-stack depth. You own product end-to-end, front to back. This isn't a front-end or backend specialist role; you're comfortable across the whole stack (React/TypeScript on the front end and modern backend services, APIs, and data pipelines).
- Strong product sense. You build customer-facing product and translate real user needs into technical solutions
- Fluency with coding agents as part of how you build
- Demonstrated experience operating at startup pace and ambiguity — moving fast with less process, owning decisions without a fully-formed spec — at some point in your career
- Autonomy and ownership. Able to meet in-office/hybrid expectations in Seattle or San Francisco

## Nice to have

- Hands-on applied AI/LLM systems experience — you've built and shipped real systems and can speak to what you owned and what broke in production
- Prior experience at AI-native companies
- Formal ML background (optional — practical AI fluency matters more than credentials)

## Compensation

Competitive package of base salary, meaningful equity, and benefits.

Base Salary: $200,000–$255,000 annually

Actual compensation depends on qualifications, skills, experience, and location.

## About Supio

## Company Overview
- **One-liner**: Supio is an AI platform purpose-built for personal injury and mass tort law firms, delivering human-level analysis of complex legal records to help firms settle bigger and win more.
- **Entity Type**: Private (Series B, $91M total funding)
- **Headquarters**: Seattle, Washington, United States (with additional office in San Francisco)
- **Founded**: 2021
- **Founders**: Jerry Zhou (Co-Founder & CEO) and Kyle Lam (Co-Founder & CTO)

## Core Business
- **Primary industry**: Legal technology (AI for plaintiff-side personal injury and mass tort litigation)
- **Target customers**: B2B – personal injury law firms, mass tort firms, and plaintiff legal teams
- **Mission or purpose**: “Level the playing field for injured people — ensuring evidence is never missed, injuries are never undervalued, and justice is never lost to the sheer volume of information humans must process.”

## Products & Services
- **Supio Agent**: An end-to-end agentic AI platform that connects every dimension of a plaintiff practice — from intake through resolution, case intelligence through firm-wide analytics. It handles document organization, medical record review, drafting demands, litigation documents, and case insights.
- **AI Assistant**: Acts as a paralegal, nurse consultant, and strategic attorney — organizes documents, flags medical issues, and refines arguments.
- **Medical Chronologies**: Creates precise chronologies from medical records with filters and AI chat capabilities.
- **Case Signals**: Identifies missing records, undiagnosed injuries, and other key gaps in a case.
- **Drafting Suite**: Drafts interrogatories, deposition questions, statements, and other legal documents aligned to firm style.
- **Case Economics**: Provides billing snapshots, ledgers, and valuation tools.
- **Demands**: Auto-generates injury descriptions and ICD codes, editable via chat.
- **Supio API & Connectors**: Integrates with existing case management systems and document platforms for seamless workflows.

## Market Standing
- **Valuation / Market Cap**: Not publicly disclosed
- **Key Metric**: Total Funding – $91M (Seed $6M in May 2023, Series A $25M in Aug 2024, Series B $60M in May 2025)
- **Notable Investors / Partners**: Lead investor Sapphire Ventures (Series A & B); partners include Thomson Reuters and leading Trial Lawyer Associations
- **Growth Signals**: 135 employees (64.7% YoY growth); platform has supported over $1 billion in settlements; one firm saved 437 hours across six cases; $500–$1,000 saved per case; expanding into Canada (Toronto hires)

## Competitive Advantages
- **Agentic AI purpose-built for plaintiff law** – not a generic AI tool bolted onto legal workflows, but an end-to-end platform designed from the ground up for personal injury and mass torts.
- **Security & Compliance** – SOC 2 Type II certified, HIPAA, PHIPA, and GDPR compliant; client data never leaves their control and never trains foundation models.
- **Human-in-the-loop QA** – Combines specialized AI with expert human accuracy to ensure reliability.
- **Deep integrations** – Connects with major case management systems and offers an API for custom workflows.
- **Partnerships** – Backed by Thomson Reuters and top trial lawyer associations, giving authoritative intelligence.

## Strategic Focus
- Continue to dominate the plaintiff personal injury and mass tort AI market.
- Expand geographically (recent Canada hiring push) and scale the agentic platform to larger firms.
- Deepen product capabilities across pre-litigation and litigation, with an emphasis on firm-wide analytics and case economics.
- Grow headcount across engineering, customer success, sales, marketing, and product to support sustained leadership in the PI industry.

## Why Work Here
- **Culture & Mission**: “AI for people, not systems” – the team is passionate about leveling the playing field for injured people and transforming how legal professionals work.
- **Work Model**: Hybrid – focused remote work blended with in-person collaboration at offices in San Francisco (SOMA) and Seattle (HQ). Flexibility is core, with intentional in-person connection for shared momentum.
- **Engineering Culture**: “AI-native thinking” – AI is baked into the DNA of every experience, not bolted on. Teams work on ambitious goals that directly impact real cases.
- **Benefits**: Comprehensive benefits designed to support health, growth, and life beyond the office.
- **Growth Stage**: With $91M raised and a clear growth trajectory, employees can have high impact in a scaling organization.

## Sources
1. [supio.com/careers](https://www.supio.com/careers)
2. [supio.com](https://www.supio.com/)
3. [supio.com/about](https://www.supio.com/about)
4. [linkedin.com/company/supio](https://www.linkedin.com/company/supio)
5. [cbinsights.com/company/supio](https://www.cbinsights.com/company/supio)

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