Ontarion Logo

Ontarion

Founding Full-Stack Engineer (React + Node.js) — Ontarion (Remote, US) · $130,000–160,000 + 0.3–0.6% equity

Posted Yesterday
Remote
Hiring Remotely in United States
130K-160K Annually
Mid level
Remote
Hiring Remotely in United States
130K-160K Annually
Mid level
Build the core product interface (chat, citations, admin settings) from scratch, ship weekly to design partners, own UX decisions, establish frontend architecture and conventions, and work directly with founders to prioritize and implement features.
The summary above was generated by AI

Our product has a dozen customers using it and no dedicated frontend owner yet. We need someone who can build the interface fast enough to keep up with what they're asking for.

About us Ontarion is a seed-stage AI company (9 people) building an enterprise AI copilot for our first design-partner customers. Stack: React, TypeScript, Node.js, PostgreSQL, AWS.

What you'll do

  • Build our core product interface from scratch: chat, citations, admin settings
  • Ship directly to design partners on a weekly basis and react to real usage
  • Make UX calls yourself — there's no dedicated designer yet, though that's our next hire
  • Set the frontend architecture and conventions the next engineers will inherit
  • Work directly with the founders on what to build next

What we're looking for Must-have:

  • 3+ years building production apps with React and Node.js
  • Comfortable owning UX decisions without a dedicated designer
  • Experience designing APIs end-to-end
  • Comfortable with a fast, spec-light environment where priorities shift weekly

Nice to have:

  • Experience integrating LLM APIs (OpenAI, Anthropic, etc.)
  • Early-stage startup experience

What we offer

  • $130,000–160,000/year + 0.3–0.6% equity
  • Fully remote (US timezones)
  • Health/dental/vision covered
  • Flexible PTO
  • $2,000/year learning budget

How to apply Email us at [email protected]. We respond within 3 business days.

Similar Jobs

2 Days Ago
In-Office or Remote
United States
80K-140K Annually
Junior
80K-140K Annually
Junior
Consumer Web • Software • Travel
Join as the founding full-stack engineer to extend a TypeScript React/Next.js prototype, design product features, integrate AI/OCR, write tests and infrastructure, talk to users, and iterate quickly to drive growth.
Top Skills: Content Management SystemJavaScriptLlm/Ai ApisMantineNext.JsOcr/Image-To-TextReactTestingTypescript
2 Days Ago
Remote
USA
Expert/Leader
Expert/Leader
Social Media • Software
Staff full‑stack engineer to own cross‑stack architecture and deliver high‑impact features quickly. Work on a React/React Native app and Node.js/TypeScript and Go backends, set technical direction, mentor a small squad, contribute to the open AT Protocol ecosystem, and integrate agentic AI tooling to boost team productivity.
Top Skills: Agentic Ai ToolsAndroidAt ProtocolCassandraGoiOSNode.jsPostgresReactReact NativeScyllaTypescriptWeb
18 Minutes Ago
Remote
United States
Senior level
Senior level
Information Technology • Mobile • Design
The Senior Full Stack Developer will solve complex software challenges using React and Node.js, with a strong emphasis on collaboration and ownership in a mission-driven environment.
Top Skills: AgileAws Cloud ToolsAws LambdaCloudbeesDevOpsDynamoDBGitJenkinsJestNode.jsReactReact Testing LibrarySQL

What you need to know about the Colorado Tech Scene

With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.

Key Facts About Colorado Tech

  • Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
  • Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
  • Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
  • Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
  • Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account