Frontend Engineer (Founding Team)
- Level
- Mid
- Work type
- On-site · San Francisco Bay Area
Not stated in the posting: salary, visa.
Open. First seen 2 October 2026.
About the role
Frontend Engineer (with familiarity of full stack) (Founding Team)
Location: San Francisco Bay Area
Type: Full-Time
Compensation: Competitive salary + meaningful equity (founding tier)
Fabrion's standard text
Backed by 8VC, we're building a world-class team to tackle one of the industry’s most critical infrastructure problems.
About the Role
We’re building an AI-native data platform designed to simplify the most complex workflows in deep industrial use cases. We’re looking for a frontend engineer who’s excited to bring clarity to ambiguity, design to complexity, and elegant user experiences to industrial-grade systems.
You’ll work directly with the founding team to shape and ship intuitive UIs across multi-tenant analytics visualizations, agent interfaces, and workflow tools. If you’ve ever felt that enterprise UIs are bloated, confusing, or inefficient — this is your chance to build something better.
This is an early-stage, high-autonomy role where you’ll contribute to the foundational UX patterns and design language of a next-generation SaaS platform.
Responsibilities
- Design and build scalable, performant, and accessible frontend components using React and Next.js
- Implement intuitive, minimal UX for complex backend and AI workflows — including dashboards, agents, approval flows, and multi-tenant admin panels
- Work closely with backend and data teams to visualize dynamic, high-dimensional data (including time series, lineage, vector search, and agent memory)
- Contribute to design systems, component libraries, and shared patterns
- Ship quickly and iterate — from low-fidelity prototypes to fully responsive, production-ready code
What We’re Looking For
Experience:
- 3–7 years of experience as a frontend or full stack engineer
- Proficient in React, TypeScript, Next.js, TailwindCSS (or equivalent), experience with AI Agentic stack like langchain, model APIs, model and agentic interfaces is a big plus
- Comfortable integrating with APIs (REST, GraphQL), streaming endpoints, and real-time data
- Experience building or contributing to complex dashboards or admin panels
- Familiar with web accessibility, responsive design, and UX performance best practices
Mindset & Craft:
- You think deeply about user experience and prefer clarity over flashiness
- You enjoy simplifying complexity with elegant, maintainable interfaces
- You value clean abstractions and shareable components over short-term hacks
- You want to work on tools that solve hard problems for real users
- You care about visual storytelling, agent interfaces, and helping users trust AI outputs
Bonus Experience:
- Prior work on B2B platforms, data-intensive applications, or industrial/logistics tooling
- Experience with Vega or Flourish or React ReChart charting libraries, or D3.js
- Slack app integrations, Excel/Docs plugins, or workflow UX
- Familiarity with multi-tenant design patterns, granular RBAC, or policy-based controls
- Experience with AI Agentic stack like langchain, model APIs, model and agentic interfaces is a big plus
Why Join
- Early ownership in a technical product with long-term upside
- Opportunity to define how users interact with complex data and intelligent agents
- Join a founding team that values design as a first-class citizen, not an afterthought
- Ship features fast in a low-process, high-trust environment
- Work on AI-native tooling that blends backend intelligence with frontend usability
If you want to help shape the interface layer of the next generation of intelligent systems — and believe design is a core enabler of AI trust, clarity, and effectiveness — we’d love to hear from you.
What this role asks for
Particular to this role
Tailwind
Rare in Fabrion's other 8 open postings.
Standard for frontend roles
JavaScript · REST · React · TypeScript
Common in frontend postings at any company.
In most of Fabrion's ads
Vector Databases
Named in most of its open postings, whatever the role.
96% of this description is written for the role. The rest is Fabrion's standard text, folded away below.
Read against Fabrion's other open postings on this site.
The team: Engineering
This role is one of 7 open in Engineering.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Vector Databases (6 of 7), LangChain (5 of 7), LLM (5 of 7), React (5 of 7), JavaScript (4 of 7), Kubernetes (4 of 7), RAG (4 of 7)
OTHER ROLES ON THIS TEAM
- Founding AI Research Lead - Agentic AI Lab posted Sep 6
- ML/AI Research Engineer — Agentic AI Lab (Founding Team) posted Aug 28
- DevOps Engineer (Founding Team) posted Aug 11
- Data Engineer (Founding Team) posted Aug 11
- ML Ops Engineer — Agentic AI Lab (Founding Team) posted Aug 11
- Founding Engineer posted Aug 11
From the team and dates on Fabrion's own job board.
See Frontend Engineer salaries in the United States →
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