Caldera

Role Description We’re looking for an incredible senior engineer to help us build the future of blockchain scalability. This is an ideal opportunity for an engineer who is already passionate about tackling problems in blockchain scalability, or looking to break into the blockchain engineering space. 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. As a Senior Infrastructure Engineer at Caldera, you will: - Own significant components of Caldera's core infrastructure - Architect, develop, and deploy blockchain infrastructure to ensure the smooth operation of existing Caldera chains, and expand offerings for new customers. - Expand and hone our DevOps pipeline, allowing blockchains to be deployed and operated reliably and securely - Continuously improve the observability stack for the services we provide - Maintain and enhance the security posture of our infrastructure in AWS and Kubernetes, and upwards in the stack for the apps we run. Qualifications - Have 4+ years of engineering experience - Have experience writing backend services in Go or Typescript - Have experience with containerization, especially Kubernetes, Docker - Have strong experience with IaC tools such as Terraform, Helm - Hands-on experience with cloud/infrastructure and service providers, including AWS, Vercel, and Cloudflare - Keen eye for security, basic understanding of threat modeling and secure system architecture - Are confident with performance optimization, identifying bottlenecks and scalability concerns - Have familiarity with observability tools like Prometheus/Grafana or Datadog Benefits - Competitive pay - Equity + token grant in the company - Full benefits Company Description Caldera enables dynamic, scalable blockchain experiences. Currently, dapps that are deployed to general-purpose blockchain compete with thousands of other applications for space on the network. This can lead to congestion and high fees or even network outages. 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 users. We already operate chains for a significant user base and are eager to expand that operation with a sleek, performant team.

We’re looking for an exceptional Protocol Engineer to help us push the frontier of blockchain interoperability. You’ll focus on the on‑chain layer of the Metalayer—Caldera’s high‑performance, stack‑agnostic bridge that already serves 75+ rollups and their users. Your day‑to‑day will involve architecting and hardening smart contracts that move real value across chains, designing security‑critical role and upgrade patterns, and collaborating with audit partners to ship code that can safely secure hundreds of millions of dollars. This is the perfect role for an engineer who has shipped high‑TVL protocols and thrives on digging deep into EVM/SVM internals, gas economics, and cross‑chain message‑passing. If you want to see your work deployed to dozens of chains and used by thousands of developers, we’d love to meet you. We’re backed by leading crypto investors (Founders Fund, Dragonfly, and Sequoia), offer competitive cash + token, and provide full benefits. About CalderaCaldera 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. As a Protocol Engineer at Caldera, you will - 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. You might be a fit for this role if you… - 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.