Senior Blockchain Engineer

zerohash; Little Canada (MN); Sur place; USD 150 000 - 210 000; Plein temps

Résumé du poste

zerohash is seeking a Senior Blockchain Engineer to architect and build the infrastructure powering digital asset transactions across multiple networks. You will design and implement resilient systems, focusing on scalability and reliability in a fast-moving FinTech environment.

The role requires deep Go expertise, solid understanding of blockchain protocols, gRPC, Protocol Buffers, and experience with event streaming systems like NATS or Kafka.

Description du poste

About The Job

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.

About The Job

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.

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.

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.

Key Responsibilities

• Design and build blockchain integration services — transaction signing, deposit processing, and confirmation tracking — across multiple networks (EVM, Solana, Polkadot, XRP, and others)
• Build and maintain gRPC microservices in Go within an event-driven architecture using NATS JetStream
• Implement transaction state machines with reliability guarantees including idempotency, distributed locking, and chain reorganization handling
• Integrate with custody providers for secure transaction signing and wallet management
• Monitor blockchain networks for deposits, confirmations, and anomalies
• Participate in on-call rotation, responding to production incidents across blockchain infrastructure
• When necessary, communicate directly with client technical teams

Requirements

• 5+ years of software engineering experience, preferably in the FinTech space
• Deep proficiency with Go
• Understanding of blockchain technologies, protocols, and their applications
• Experience with gRPC and Protocol Buffers
• Familiarity with message brokers or event streaming systems (NATS, Kafka, or similar)
• Experience with MongoDB or other document databasesUnderstanding of SQL and relational database schema design
• A humble and scrappy get-it-done mindset; you're resourceful and in your element going from 0 to 1
• Excellent problem solving skills — can troubleshoot complex distributed