Senior Solana Engineer

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Description

Senior Solana Engineer Full-time/Company: Outrank Outrank is building the on-chain execution layer for a Solana-based perpetual-futures protocol. The role focuses on delivering a custom matcher program, settlement integration, risk controls, and supporting off-chain services—taking systems from prototype through devnet rehearsal to an audit-ready mainnet launch. The team builds on a third-party Rust perpetual-futures risk engine and prioritizes enforcing capital-protecting controls on the transaction path. Responsibilities: - Build a custom Solana matcher program enforcing quote validation, execution-deviation limits, position and inventory caps, partial fills, expiry, and replay protection. - Implement an off-chain router/batcher that nets user flow and assembles settlement transactions. - Integrate settlement with a third-party Rust perpetuals risk engine (via CPI) without modifying the engine. - Build a backend accounting layer that reconciles on-chain state into a clean per-actor ledger. - Produce deterministic tests and drive the path to an audit-ready mainnet deployment. Requirements: - Strong Solana program development experience (native Rust or Anchor), CPI experience, and solid grasp of the SVM account model. - Comfortable reading unfamiliar Rust at the source level and reasoning about correctness and invariants. - Familiarity with perpetual/derivatives mechanics (margin, funding, liquidation, oracle marks) or ability to ramp up quickly. - A bias toward verification and testing over shipping speed. Nice to have: - Prior work on a DEX, perpetuals protocol, or on-chain matching/settlement system. - Experience integrating with unaudited or early-stage codebases. - Audit-preparation or security-review experience. Stack: Solana, Rust, Anchor, CPI, SVM, Perpetuals/Derivatives Benefits: - Competitive salary and early-stage equity — details discussed based on experience. 📩 Apply

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