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# Blockchain Engineer

- **Company:** Conferences and Events LLC
- **Location:** United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Distributed Systems, Open Source Technology, Blockchain, Software Engineering, System Programming, Indexer, Backend
- **Published:** October 14, 2026
- **Apply:** https://startup.jobs/senior-blockchain-engineer-moonshot-alchemy-com-10439707

## About the Role

* A track record of taking ambiguous engineering problems through working prototypes and production delivery.
 * Deep hands-on knowledge of at least one blockchain: its execution model, transaction lifecycle, state, finality, and failure behavior.
 * Strong software engineering skills and experience building backend or distributed systems.
 * The ability to read unfamiliar code and specifications, form a testable hypothesis, and design an experiment that can disprove it.
 * Experience designing reproducible performance benchmarks and using profiling to distinguish CPU, memory, storage, and network bottlenecks.
 * Evidence of careful reasoning about correctness and security, especially where mistakes affect funds or chain state.
 * Product judgment: explain who needs a capability, what it improves, and whether the result 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 submission, simulation, indexing, or cross-chain infrastructure.
 * Early-stage products where you helped decide what to build and what to stop.

## Description

* 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 the layers the problem requires: 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 or operational value alongside technical feasibility, security, operating cost, and the effort required to support the system.
 * Take validated ideas through production design, testing, rollout, observability, and operational documentation with partner teams.
 * Write concise recommendations to continue, change direction, or stop, supported by the experiment's results.
 * Participate in production support and incident response for the systems you ship. Own monitoring, runbooks, and fixes after launch.