Senior Blockchain Engineer, Moonshot
Alchemy · Remote
About this role
## About Alchemy Alchemy is the Web3 infrastructure and developer platform powering millions of users and the world’s most innovative blockchain applications. From enabling **$1+ trillion** in financial transactions worldwide to scaling L2s and enabling DeFi, Alchemy provides the infrastructure and tools developers need to build reliable, scalable, and accessible experiences. Trusted by companies like **JPMorgan, Stripe, Visa, Franklin Templeton, Nike**, and backed by **a16z, Coatue, Silver Lake, Lightspeed**, and **Stanford University**. Learn more: https://alchemy.com --- ## The Role Take new blockchain infrastructure and product ideas from an uncertain problem to a working system. You’ll help decide **what to test**, build the **smallest experiment** that answers the important questions, and turn promising results into **production software**. You enjoy reading protocol specifications and unfamiliar code, talking with developers, and building enough to determine whether an idea is useful. You’re also willing to **stop an experiment** when the evidence doesn’t support it. --- ## What You Will Do - Identify developer or infrastructure problems that could justify a new blockchain capability or product, working with **Engineering, Product, and customer-facing teams**. - Define each experiment’s **hypothesis, success criteria, constraints, and time limit** before building. - Prototype across required layers: **blockchain clients, RPC, indexing, transaction infrastructure, backend services, or smart contracts**. - Read protocol specifications and implementation code, then test assumptions with **reproducible benchmarks** and **failure cases**. - Evaluate developer/operational value alongside **technical feasibility, security, operating cost, and support effort**. - Take validated ideas through **production design, testing, rollout, observability, and operational documentation**. - Write concise recommendations to **continue, change direction, or stop**, supported by experiment results. - Participate in **production support and incident response** for systems you ship; own **monitoring, runbooks, and fixes** after launch. --- ## What We Are Looking For - A track record of taking ambiguous engineering problems through **working prototypes** and **production delivery**. - Deep hands-on knowledge of at least one blockchain: **execution model, transaction lifecycle, state, finality, and failure behavior**. - Strong software engineering skills; experience building **backend or distributed systems**. - Ability to read unfamiliar code/specs, form a **testable hypothesis**, and design an experiment that can disprove it. - Experience designing **reproducible performance benchmarks** and using profiling to identify **CPU, memory, storage, and network** bottlenecks. - Careful reasoning about **correctness and security**, especially where mistakes affect funds or chain state. - Product judgment: explain **who needs the capability**, what it improves, and whether it warrants further investment. - Clear collaboration and documentation so another team can operate or extend what you build. --- ## Helpful Experience - Contributions to blockchain clients, protocol implementations, or open-source infrastructure. - Rust, Go, C++, or other systems programming languages; smart-contract development where relevant. - EVM implementation, CPU microarchitecture, compiler optimization, or hardware performance counters. - RPC performance, transaction submiss
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