riki.bio

I build the whole stackFrontends people useReliable backendsSolana programs

Trading bots, payment flows and on-chain programs for Jupiter, Robotter Labs and Aleph Cloud, in TypeScript and Rust.

Experience

  1. Jupiter

    Full-stack engineerTelegram bots

    Co-built the Telegram trading and prediction bots, from launch to production. A webhook-driven backend for prediction markets, copy trading, gasless transactions, Privy wallets and broadcasts, plus the Mini Apps people onboard with.

    2025 – 26
  2. Robotter Labs

    Full-stack engineerfrnx.ai · Fishnet

    Built the Solana transaction layer for frnx.ai: swaps, staking, recurring subscriptions, blinks and referrals, from building the transaction to confirming it in the UI. Wrote Delegate Vault, a program that sells a portfolio on stop-loss, take-profit or a timer. Shipped Fishnet's Solana Pay checkout and monetisation.

    2023 – 25
  3. Aleph Cloud

    Backend engineerSolana indexers

    Open-source Solana indexers for DeFi protocols like Marinade and Pyth, and anchor-ts-generator, which writes TypeScript types and indexer code from Anchor IDLs. Plus a CPI bridge from Solana to Aleph.

    2022 – 23

Blocks of code

Next project

Got something to ship?I'll build every layer.

© 2026 Ricardo Castelló Román