Trenches / Web3 Frontend Developer

As a Web3 Frontend Developer at Bitso, you own the client surface of onchain.cc, a trading terminal with 50,000+ traders and over $10M in daily volume. You are building the product for traders who live on-chain: you understand fills, slippage, priority fees, and why an entry gets lost because you trade trenches yourself. You work in a small, intense eight-person team reporting directly to the Head of onchain.cc, shipping to production without waiting for permission.

What you'll do

• Own the client surface of the onchain.cc terminal end to end across trenches, perps and prediction markets, spanning Solana and EVM.
• Take sole ownership of at least one revenue-bearing surface, from proposal through production, including execution and fill-quality UX.
• Bring the trenches terminal to parity or beyond pump.fun, Axiom and FOMO on the interactions that decide a fill: latency, snipe controls, live data and one-click execution.
• Unify Solana and EVM wallet and transaction flows into a single surface, holding the Capacitor mobile app at feature parity.
• Propose what to build; product judgment on latency-critical trading UX is yours to own and does not get delegated.
• Drive down front-end latency on trading surfaces, measured as p95 time to interactive and time to fill.
• Own the production defect rate and incident recurrence on the surfaces you ship.

What you bring

• Shipped on-chain product to production carrying real users and real money: perps, DEXs, launchpads, prediction markets or trading terminals such as Hyperliquid, Polymarket, pump.fun, Axiom or equivalent. Side projects do not count.
• Deep experience on both Solana and EVM with no friction; you have shipped on both, not "I know one and will learn the other".
• You trade trenches yourself; you understand fills, slippage, priority fees, and why an entry gets lost. You are a user of the product, not an observer.
• Demonstrable ownership: you have proposed features, built them and shipped them without a spec, ticket or permission to move.
• Expert-level knowledge of latency and real-time in the browser: websockets, RPC streams, optimistic UI, reconnection and backpressure. You can diagnose a performance problem by its cause.
• Trading UI depth: charting (TradingView), order flow, PnL, fills, transaction states, and handling on-chain failures in ways a trader can act on.
• Wallet UX expertise: Solana adapters, embedded wallets (Privy or similar), signing and approval flows.
• Genuinely AI-native in your daily work, with a clear account of what you delegate to an agent and how you review what comes back.
• Comfortable in high-performance remote work with reasonable overlap with a global team.

What we offer

• Unlimited paid time off through the Me Time program.
• Remote-first work environment.
• Employee Stock Option program.
• Zero trading fees through the Bitso app.
• Extended Family Leave policy: 4 months for all birthing parents, non-birthing parents and adopting parents.
• Premium health, dental and life insurance in Mexico, Brazil and Argentina.
• Volunteering days.

About Bitso

Bitso is the leading cryptocurrency platform in Latin America with over 8 million users, developing the crypto ecosystem in the region and enabling financial inclusion. The company is committed to making crypto useful by providing equal access to safe and intuitive financial products.