Senior Protocol Engineer (Rollups)

Position Overview

• Location Type: Remote
• Job Type: Full-Time
• Salary: $175K - $275K

Caldera is seeking an incredible Senior Protocol Engineer to help build the future of blockchain scalability. You will work on the systems that deploy and upgrade our core supported rollup frameworks – Arbitrum, OP Stack, and ZKsync – as well as make them work with emerging technologies from shared sequencers to alternative DA layers. This is the ideal opportunity for an engineer with existing experience working on rollup node software or someone familiar with offchain services which secure significant value. If you’re looking to work in a fast-paced, high-impact team and help shape the direction of our product and company, this position is for you. We’re backed by some of the best investors in the valley and offer competitive pay and equity, and full benefits.

Company Information

• About Caldera: Caldera enables dynamic, scalable blockchain experiences. Currently, dapps that are deployed to general-purpose blockchains compete with thousands of other applications for space on the network — this can lead to congestion and high fees or even network outages. That’s where we come in. We’re building software that makes it easy for the most innovative blockchain applications to launch their own ultra-performant blockchains (rollups), enabling applications to own their ecosystem, scale to millions of users, and provide a superior user experience to their players.
• Location: San Francisco and New York (work in-person or remotely)

Requirements

• Experience: 4+ years of engineering experience, including at least 1 year of experience working with EVM-related protocols (dApps, Rollups, Solvers, etc.).
• Language Proficiency: Deep knowledge of Go, Rust or similar languages.
• Smart Contract Development: Experience building and deploying Ethereum “dapps” with Solidity or Yul.
• Distributed Systems: Experience developing and deploying distributed systems.
• Problem-Solving: Ability to solve complex design, latency, or performance problems in high-throughput production systems.
• Code Quality: Confident with performance optimization, identifying bottlenecks and scalability concerns; ability to write efficient and secure EVM smart contracts in Solidity.

Responsibilities

• Blockchain Node Architecture: Help architect the blockchain nodes that comprises the backbone of our software offering.
• Rollup Stack Development: Develop improvements to rollup stacks like OP, zksync, and Arbitrum Orbit, making them higher throughput and more reliable.
• Zero-Downtime Upgrades: Create systems that ensure zero-downtime network upgrades of high TPS chains caldera has in production, which secure hundreds of millions of dollars in value.
• Smart Contract Development: Write efficient and secure EVM smart contracts in Solidity.
• Technical Direction: Drive the technical direction, establish roadmaps, and communicate and collaborate with internal and external partners to help Caldera win.

Bonus Points

• Experience with consensus algorithms (e.g., Paxos/Raft, pBFT, tendermint, ...)