About the company
Zero Hash is a B2B embedded infrastructure platform that allows any platform to integrate digital assets natively into their own customer experience quickly and easily (a matter of API endpoints). We power neo-banks, broker-dealers, and payment groups to offer digital asset trading and custody, crypto-backed rewards and round-ups programs as well as yield through staking and DeFi and NFTs. Our thesis is very simple: every financial services firm will offer digital assets within the next 2 years and will do so through platforms such as Zero Hash. Zero Hash is defining the new FinTech vertical of digital-assets-as-a-service. Clients include MoneyLion, Wirex, Deserve, MoonPay, Tastytrade. Backed by Point72 Ventures, NYCA, Bain Capital, Tastytrade. The Zero Hash Culture All Zero Hash employees are guided by the following characteristics and core principles: Independence/Ownership - An ability to work autonomously. Join Zero Hash, pitch ideas, and shape the work you do. Passion - We are innovating quickly and challenging the status quo. We want you to think big, be creative and āmake a difference every day. Collaborative - A good attitude and respect for others. Weāre teammates, not co-workers. Everything we do is a shared success and equally a shared failure - we talk in terms of āweā not āmeā. Initiative - An ability and passion for learning and asking questions. We will champion you, challenge you and push you to achieve your best - and we expect you to do the same. Empathy - An ability to listen, respect, and understand your co-workers, customers, and everyone you interact with no matter how different they are to you. Adaptability - An ability to respond quickly. We are in a fast-paced industry and so we expect you to be creative when solving a new problem and comfortable under pressure. Transparency - We believe that transparency is critical to empowering everyone to make the best decisions, both the company to its people and vice versa. Integrity - Integrity creates trust. As both an organization collectively and as individuals, it is our most valuable asset. For candidates based in Colorado, please contact colorado-wages @zerohash.com to request compensation and benefits information regarding a particular role(s). Please include with you email the city you reside (or intend to reside in Colorado) and the title/link to the roles you're interested in.
Job Summary
About the role:
Zero Hash 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.
Responsibilities:
šDesign and build blockchain integration services ā transaction signing, deposit processing, and confirmation tracking ā across multiple networks (EVM, Solana, Polkadot, XRP, and others) šBuild and maintain gRPC microservices in Go within an event-driven architecture using NATS JetStream šImplement transaction state machines with reliability guarantees including idempotency, distributed locking, and chain reorganization handling šIntegrate with custody providers for secure transaction signing and wallet management šMonitor blockchain networks for deposits, confirmations, and anomalies šParticipate in on-call rotation, responding to production incidents across blockchain infrastructure šWhen necessary, communicate directly with client technical teams
Requirements:
š5+ years of software engineering experience, preferably in the FinTech space šDeep proficiency with Go šUnderstanding of blockchain technologies, protocols, and their applications šExperience with gRPC and Protocol Buffers šFamiliarity with message brokers or event streaming systems (NATS, Kafka, or similar) šExperience with MongoDB or other document databases šUnderstanding of SQL and relational database schema design šA humble and scrappy get-it-done mindset; you're resourceful and in your element going from 0 to 1 šExcellent problem solving skills ā can troubleshoot complex distributed systems šComfort with ambiguity; the ability to independently lay out and test clear hypotheses and solve problems without well-defined direction šExcellent verbal and written communication skills
Nice-to-have: šBachelor's in computer science or equivalent experience šExperience at a banking-as-a-service, brokerage-as-a-service, or payment-as-a-service business šExperience with digital assets or centralized exchanges šExperience integrating with blockchain custody platforms (Fireblocks, BitGo, or similar) šExperience with distributed systems patterns (distributed locking, idempotency, state machines, CQRS) šExperience with smart contracts šFamiliarity with Kubernetes and observability tooling (Prometheus, Grafana, OpenTelemetry)
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