Senior Protocol & Product Engineer

Responsibilities

• Turn ambiguous product ideas into well-designed, production-ready systems. This person should be able to challenge requirements, make sound architectural decisions, write the technical plan, and deliver quickly with limited supervision.
• Design flow-of-funds orchestration across venues and chains — bridging, routing, rebalancing between custodial and non-custodial systems — with reliable settlement, reconciliation, and failure handling as first-class concerns
• Develop custody and key management patterns that meet institutional-grade security requirements across custodial and non-custodial environments
• Build on-chain settlement and payment flows, including integrations with DEXs, lending markets, custodians, and bridge infrastructure — starting on Solana (Rust) and extending across EVM and other chains as we scale
• Build and maintain the systems that move Perena's money: minting/redeeming USD*, allocating collateral, and routing capital between on-chain protocols, centralized custodians/exchanges, and partner bank rails
• What We’re Looking ForDefining characteristics
• 3+ years building financial systems where correctness and settlement guarantees are non-negotiable — payment rails, custody/settlement infrastructure, or trading systems
• Built and shipped a DeFi, fintech, trading, or infrastructure product in a small team.
• Has owned meaningful systems from design through production.
• Strong smart-contract and backend/infrastructure fundamentals.

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