Caldera · 5 months ago
Protocol Engineer
United States
Full-time
Remote
Mid Level
$190K/yr - $250K/yr
3+ years expCaldera is a company that builds infrastructure for Web3 applications, focusing on ultra-performant rollups. The Protocol Engineer will design and implement smart contracts, ensure on-chain security, and collaborate with various teams to enhance the Metalayer protocol.
ComputerSoftware
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
Qualification
Required
3+ years engineering experience, including shipping production protocols with significant TVL
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
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
Preferred
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
Benefits
Full benefits
Company
Caldera
Caldera is a software company developing solutions for the wide-format digital printing industry.
51-200 employees
H1B Sponsorship
Caldera has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (1)
2024 (1)
2022 (1)
Funding
Current Stage
Growth StageTotal Funding
unknown2017-04-07Acquired
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