Senior Blockchain Engineer: Architect Scalable, Multi-Network Crypto Infra

Zero Hash; New York (NY); On-site; USD 150,000 - 190,000; Full time

Job summary

Zero Hash is seeking a Senior Blockchain Engineer to architect and build scalable infrastructure for digital asset transactions across multiple networks. You will contribute to an ambitious, high-performing team focused on resiliency, reliability, and rapid learning of new technologies.

The role emphasizes building blockchain integration services, Go-based microservices, and custody integration, with on-call duties and direct client collaboration as needed.

Qualifications

• 5+ years of software engineering, FinTech preferred.
• Deep proficiency with Go.
• Experience with blockchain tech and protocols.
• Experience with gRPC and Protocol Buffers.
• Familiarity with message brokers or event streaming systems.
• Experience with MongoDB or document databases; SQL knowledge.
• Strong problem solving and distributed systems troubleshooting.
• Excellent communication skills.

Responsibilities

• Design and build blockchain integration services across networks (EVM, Solana, Polkadot, XRP).
• Build and maintain gRPC microservices in Go within an event-driven architecture (NATS JetStream).
• Implement transaction state machines with idempotency and distributed locking.
• Integrate with custody providers for secure signing and wallet management.
• Monitor networks for deposits, confirmations, and anomalies.
• Participate in on-call rotation and respond to production incidents.
• Communicate with client technical teams when needed.

Skills

Go language

Blockchain

Distributed systems

gRPC

MongoDB

SQL

Problem solving

Communication

Education

Bachelor's degree in CS

Tools

NATS JetStream

Protocol Buffers

Kubernetes

Prometheus/Grafana

Job description

Zero Hash is seeking a Senior Blockchain Engineer to architect and build scalable infrastructure for digital asset transactions across multiple networks. You will contribute to an ambitious, high-performing team focused on resiliency, reliability, and rapid learning of new technologies.

The role emphasizes building blockchain integration services, Go-based microservices, and custody integration, with on-call duties and direct client collaboration as needed.