Fullstack Design Engineer Equity) at Blaxel

Job Title

Fullstack Design Engineer

$140k-$190k Equity

Blaxel is a YC X25 company backed by First Round building the cloud infrastructure for autonomous AI agents. Founded by repeat founders who previously sold ForePaaS to OVHcloud, the team is creating the sandbox, memory, and networking layers necessary for AI agents to operate effectively in production environments.

Join Blaxel as a founding design engineer to own the product experience end-to-end. You will design and ship the interfaces for a new category of cloud computing built for both humans and AI agents. Working in San Francisco, you’ll leverage AI tools to move from concept to production-ready React code at lightning speed.

San Francisco, USA

• Shape a new product category by designing interfaces that serve both human users and autonomous AI agents directly.
• Join a high-growth startup with near-zero churn and strong revenue traction from AI agents already using the platform.
• Work directly with experienced repeat founders in a high-autonomy environment where your designs land in production immediately.

• Own the Blaxel Console experience from initial exploration and polished UI design to merging production-ready PRs.
• Leverage AI coding tools as your implementation engine to translate designs into a high-quality Type Script and React codebase.
• Proactively monitor how agents and humans interact with the platform to iterate on UX patterns and foundational design systems.

• Possesses exceptional design taste and craft, with an obsessive eye for detail in spacing, motion, and interaction patterns.
• Demonstrates strong technical proficiency in front-end fundamentals, including Type Script, React, and CSS, to own a production codebase.
• Operates as a mini design founder with high ownership, AI fluency, and the ability to solve user problems independently.