Frontend Engineer (React, Web3)

Role overview Create the web console finance teams use to oversee AI agent spending and review payments that need human approval. The focus is product frontend work in React and TypeScript: presenting payment decisions, making spending policies understandable, and explaining onchain activity in clear terms. You’ll also help shape a self-serve developer sandbox and future budget forecasting tools.

Responsibilities - Build daily-use views of agent spending, the decisions associated with payments, and approvals awaiting review. - Create a policy editor that helps non-engineers understand, compare, and publish spending rules. - Provide change history that makes it clear who updated a policy and what changed. - Present USDC transfers and escrow activity on Base and Solana so users can follow payments from approval to transaction. - Help design and build a self-serve sandbox for developers, followed by budget forecasting features. - Work directly with technical leadership and take early product ideas through to accessible interfaces.

Requirements - Experience shipping React and TypeScript in a product used by paying customers. - Ability to turn rough requirements into clear, accessible screens without relying on a designer to specify every detail. - Residence in a country where the role can be hired. - Relevant work from open source, hackathons, or personal projects is welcome; a particular job title is not required.

Nice to have - Experience with payments or fintech dashboards, dense data tables, or charts. - Design system development or maintenance, and comfort working in Figma. - Familiarity with Next.js, TanStack Query, wagmi, viem, ethers, or Solana web3.js.

Benefits and work setup - US salary range: $155,000–$190,000; offers elsewhere are benchmarked to the local market and may be paid in USD or USDC. Includes 0.12% vesting equity. - Health coverage varies by location; US employees receive full employee medical, dental, and vision premiums, with 75% coverage for dependents. Elsewhere, there is a local plan or a $300 monthly contribution toward private coverage. - 25 vacation days plus public holidays, a year-end closure, and 14 weeks of paid parental leave. - Laptop, $1,000 workspace allowance, and $1,500 annual learning budget; work-related conference travel is also covered. - Flexible hours with a shared availability window from 14:00 to 17:00 UTC. The role may be combined with another job if there is no conflict.