• Remote · US$4,000–6,000 per month.
• Own complex live-update logic, trading analytics, and charts in React and TypeScript.
• Optimise state handling, data synchronisation, and chart rendering speed under frequent updates.
• Strong React experience, with a focus on performance, predictable state, and reliable UI behaviour.
• AI tools are encouraged. We require 4+ years of hands-on React experience, including building applications before the ChatGPT era.
• English C1 or above is mandatory for collaboration with our international team.
• Bonus experience: TanStack, React Native, trading analytics, financial charting, trading platforms, and crypto.
• Morfi is an opinion market platform built on Solana, where people trade on what they believe. Currently valued at US$20 million.
• Our founders are based in London and are currently participating in a Solana incubator in New York until November 2026.

Recommended cover letter

When applying, we recommend including a short cover letter answering these three questions. Brief bullet-point answers are welcome.

1. What was the most demanding live-updating interface you worked on? Include charts, update frequency, and data volume.
2. How did you manage frequent state updates, limit unnecessary renders, and keep data correct during reconnects?
3. What performance improvement did you deliver? Explain what you measured, what you changed, and the result.