Senior Blockchain Engineer

About the Role

strong gt;About The Job br gt; br gt; /strong gt;zerohash is looking for a Senior Blockchain Engineer to help architect and build the infrastructure that powers digital asset transactions across multiple blockchain networks. We are a high-performing team looking for an equally ambitious and driven teammate. br gt; br gt;The right candidate for this position is detail-oriented, deeply technical, and driven. You are eager to learn new technologies and complex systems. You build resiliency and scalability into the platform at every step. br gt; br gt;If you re looking to have a massive impact in one of the most exciting markets in decades, you will find this role challenging and rewarding in equal measure br gt; br gt;Key Responsibilities br gt; br gt; ul gt; li gt;Design and build blockchain integration services — transaction signing, deposit processing, and confirmation tracking — across multiple networks (EVM, Solana, Polkadot, XRP, and others) /li gt; li gt;Build and maintain gRPC microservices in Go within an event-driven architecture using NATS JetStream /li gt; li gt;Implement transaction state machines with reliability guarantees including idempotency, distributed locking, and chain reorganization handling /li gt; li gt;Integrate with custody providers for secure transaction signing and wallet management /li gt; li gt;Monitor blockchain networks for deposits, confirmations, and anomalies /li gt; li gt;Participate in on-call rotation, responding to production incidents across blockchain infrastructure /li gt; li gt;When necessary, communicate directly with client technical teams br gt; br gt; /li gt; /ul gt; strong gt;Requirements br gt; br gt; /strong gt; ul gt; li gt;5+ years of software engineering experience, preferably in the FinTech space /li gt; li gt;Deep proficiency with Go /li gt; li gt;Understanding of blockchain technologies, protocols, and their applications /li gt; li gt;Experience with gRPC and Protocol Buffers /li gt; li gt;Familiarity with me...