Protocol Engineer jobs in United States
cer-icon
Apply on Employer Site
company-logo

Caldera · 5 months ago

Protocol Engineer

positionUnited States
timeFull-time
remoteRemote
seniorityMid Level
money$190K/yr - $250K/yr
date3+ years exp

Caldera is a company that builds infrastructure for Web3 applications, focusing on blockchain interoperability. They are seeking a Protocol Engineer to design and implement smart contracts, ensure on-chain security, and collaborate with various teams to enhance the Metalayer protocol.

BlockchainInformation TechnologySoftware EngineeringWeb3
check
H1B Sponsor Likelynote

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

SolidityRustEVM/SVM internalsGas economicsOn-chain securitySystematic debuggingTest-driven developmentClear communicationCollaboration with teams

Required

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

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

Competitive cash + token
Full benefits

Company

Caldera

twittertwittertwitter
company-logo
Caldera offers a no-code Web3 infrastructure platform to help developers spin up layer-2 blockchains.
dateFounded in 2022
location
San Francisco, California, USA
people-size11-50 employees
web-link
https://caldera.xyz

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
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
2022 (1)

Funding

Current Stage
Early Stage
Total Funding
$24M
Key Investors
Founders Fund
2024-07-24Series A· $15M
2023-02-13Undisclosed· $9M

Leadership Team

leader-logo
Matthew Katz
CEO, Co-Founder
linkedin
leader-logo
Parker Jou
Cofounder and CTO
linkedin

Recent News

PR Newswire UK
The SANDChain Foundation announces SANDchain to power creator economy transparently and equitably
2025-09-30
Tech Startups - Startups and Technology news
Mawari Partners with Caldera to Launch Mawari Network, Enabling Real-Time Streaming of Immersive, AI-Powered Experiences Globally
2025-08-16
Tech Startups - Startups and Technology news
Caldera Launches ERA Force One to Strengthen On-Chain Tokenholder Community
2025-08-14
Company data provided by crunchbase