Supio Logo

Supio

Senior/Staff Software Engineer, Full-Stack (Agentic Platform)

Posted 19 Days Ago
Hybrid
Seattle, WA, USA
180K-255K Annually
Senior level
Hybrid
Seattle, WA, USA
180K-255K Annually
Senior level
Build and own Supio's agentic platform end-to-end in TypeScript: production LLM/AI features, agent runtime and prompt/tool architecture, voice/transcription and document workflows, core full-stack customer application, and monitoring/evaluation tooling. Influence architecture and lead greenfield product development with autonomy.
The summary above was generated by AI
About Us  

Supio is a trusted AI platform purpose-built for law firms, reshaping how data drives impactful outcomes. Our innovative approach blends technology with deep legal expertise, making us a leader in our field. We go beyond surface-level AI to deeply understand our customers’ daily needs, empowering law firms with unparalleled data insights. Supio delivers human-level, accurate analysis of complex data and legal records, quickly and efficiently bringing critical insights when they matter most. Trusted by top litigation lawyers, our platform has supported over $1 billion in settlements.

Headquartered in Seattle with an office in San Francisco, we raised $60M Series B in April 2025 led by Sapphire Ventures with Mayfield and Thomson Reuters Ventures, bringing total funding to $91M. We're scaling rapidly and looking for exceptional talent to join us in this next phase of growth.

​​We're looking for passionate team members who are motivated by our mission and ready to help us achieve it.

Who we're looking for

We're hiring senior/staff, product-minded full-stack engineers to build Supio's agentic platform — applied AI at the core, 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 have hands-on experience shipping LLM/AI systems in production, you're fluent using coding agents in your daily workflow, and you operate with real autonomy. You've thrived in a startup environment and you're excited to build greenfield.

What you'll build
(scope depends on team placement)
  • 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
  • The core full-stack application customers work in every day
  • Production LLM-driven 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, AI-native 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
  • Hands-on applied AI/LLM systems experience. You've built real systems end-to-end and can speak to what you owned and what broke in production
  • Fluency with coding agents as part of how you build
  • Startup background. Comfortable with ambiguity, speed, and greenfield
  • Autonomy and ownership. Able to meet in-office/hybrid expectations in Seattle or San Francisco

Nice to have
  • 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.
Compensation & Benefits
  • 💰 Competitive Salary + Meaningful Equity
  • 💹 401(k)
  • ⚕️ Health, Dental, Vision, and Life Insurance
  • 🏝 Flexible Time Off + Holidays
  • 🧑‍💻 High-autonomy work environment, every Tuesday is a Remote Work Day
  • 🥗 DoorDash subsidies for breakfast and dinner; Daily lunch options
  • 🧋 Boba Wednesdays
  • 🚃 Monthly commuter subsidies and pre-tax parking contribution
  • 🚀 Team gatherings and offsites

E-Verify Participation Notice  
Supio participates in E-Verify, an employment authorization program through the U.S. Department of Homeland Security and the Social Security Administration. 

Equal Employment Opportunity (EEO) Statement 
Supio is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. 


HQ

Supio Seattle, Washington, USA Office

1501 4th Ave, Seattle, WA , United States, 98101

Similar Jobs

4 Days Ago
In-Office or Remote
United States
Mid level
Mid level
Artificial Intelligence • Healthtech • Software • Biotech
The Full Stack Software Engineer role involves building and maintaining web applications, collaborating on product features, and contributing to the company's engineering culture.
Top Skills: AWSNode.jsPostgresRedisSvelteSveltekitTypescript
3 Days Ago
In-Office or Remote
Seattle, WA, USA
115K-145K Annually
Senior level
115K-145K Annually
Senior level
Machine Learning
The Senior Full-Stack Software Engineer will lead the development of innovative tech solutions, engaging with clients and driving project excellence through full-stack capability and collaboration.
Top Skills: AWSAzureC#DockerExpressjsGCPJavaJavaScriptKotlinMongoDBNode.jsRabbitMQReactSQLSwiftVueWebpack
13 Days Ago
In-Office
Seattle, WA, USA
200K-200K Annually
Senior level
200K-200K Annually
Senior level
Cloud • Software • Analytics
The Senior Full Stack Software Engineer at NiCE will develop AI-powered customer experience solutions, build end-to-end features, and improve the software development lifecycle, requiring strong full-stack skills in TypeScript/Node.js or Go, and React.
Top Skills: AWSAzureClaude CodeGoHelmKubernetesNode.jsOpenai CodexReactTypescript

What you need to know about the Seattle Tech Scene

Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.

Key Facts About Seattle Tech

  • Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Amazon, Microsoft, Meta, Google
  • Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
  • Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Madrona, Fuse, Tola, Maveron
  • Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account