Rust Jobs for Rustaceans

About Caldera
Caldera builds infrastructure that lets the most ambitious Web3 apps launch ultra‑performant rollups instead of competing for block space on congested general‑purpose chains. Our software powers dynamic, scalable blockchain experiences for millions of users. We’re a distributed team with hubs in San Francisco and New York, and we support both in‑office and remote work.

Key Responsibilities

• Design & implement Solidity and Rust smart contracts across EVM, L2s, and SVM that form the core Metalayer protocol.
• Own on‑chain security—role‑based access control, pause/upgrade paths, and high‑value asset protections.
• Drive audits: spec, coordinate, and remediate findings with top security firms.
• Collaborate with relayer, indexer, and frontend teams to define clear, developer‑friendly on‑chain APIs.
• Build tooling for on‑chain monitoring, alerting, and gas/performance profiling.
• Research & prototype new protocol features (e.g., fast‑finality bridges, ZK‑verified proofs) that expand Metalayer’s surface area.

Requirements

• Have 3+ years engineering experience, including shipping production protocols with significant TVL.
• Possess expert‑level Solidity and/or Rust skills and a deep grasp of EVM/SVM internals.
• Understand gas/compute metering on Ethereum, L2s, and Solana, and how off‑chain components (relayers, indexers) interact with contracts.
• Are comfortable owning end‑to‑end security: access control, upgradeability, failure‑mode analysis, and incident response
• Excel at systematic debugging, test‑driven development, and writing clean, well‑reviewed code.
• Communicate clearly and enjoy partnering with frontend, backend, and product teams.

Bonus points

• Prior experience building AMMs, bridges, or MEV/intents systems.
• Hands‑on work with consensus algorithms (Paxos/Raft, Tendermint, HotStuff, etc.).
• Familiarity with ZK proofs, fast‑finality research, or cross‑chain messaging standards (e.g., CCIP, IBC).
• Significant open‑source contributions to blockchain clients, protocol libraries, or security tools.