[Remote] Senior Full-Stack Engineer

Note: The job is a remote job and is open to candidates in USA. Crystol AI is hiring a Senior Full-Stack Engineer to build and maintain product features across its AI pipeline, customer-facing widget, and dashboard. The role also owns the embed/widget SDK developer experience, collaborates on product direction, and supports code quality through PR reviews.

Responsibilities

• Build and maintain product features end-to-end across Next.js, Convex, and our AI agent layer
• Own the developer experience of our embed/widget SDK
• Collaborate with the founding team to shape product direction
• Review PRs and raise the bar for code quality across the codebase

Skills

• 5+ years of production experience with TypeScript and React
• Strong familiarity with server-side rendering and API design
• Experience shipping and maintaining complex SaaS products
• Comfortable working in a fast-moving, ambiguous early-stage environment
• Experience with Convex, tRPC, or similar real-time data layers
• Prior work on AI/LLM product integration
• Experience building developer tools or SDKs

Benefits

• Remote (US/EU)

Company Overview