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Zero Hash is seeking a Senior Software Engineer to architect and build fiat payment systems and banking infrastructure at scale. This is a hands-on technical role focused on the backbone of financial infrastructure, bridging traditional finance and digital assets.
Key Responsibilities:
- Lead architectural design and hands-on development of global fiat payment rails including ACH, RTP, FedNow, Request for Pay, and SEPA
- Architect and scale seamless API integrations with top-tier banking partners
- Design and build robust treasury management software for internal operations, enabling programmatic liquidity management and automated balance transfers between partner banks
- Develop internal operational tooling to support reconciliation, automated alerts, financial operations, and compliance reporting
- Contribute to software design and development in an event-driven microservices environment
- Develop microservices primarily using Golang
- Collaborate with platform engineers to set up new services and scale existing infrastructure
- Respond to production issues and alerts to ensure high availability of payment gateways
- Communicate directly with banking partners and client technical teams to resolve complex integration issues
About Zero Hash:
Zero Hash is the leading crypto and stablecoin infrastructure platform, powering the next generation of financial services. Founded in 2017, the company enables banks, brokerages, fintechs, and payment companies to offer crypto trading, stablecoin payments, and tokenized assets without building complex blockchain infrastructure. The platform supports three core pillars: Trade, Transact, and Tokenize. Zero Hash is trusted by recognized financial and consumer brands including Interactive Brokers, Morgan Stanley, Stripe, Franklin Templeton, BlackRock, DraftKings, and Gusto. The company has raised over $280 million from leading venture firms and strategic investors including Morgan Stanley, Interactive Brokers, SoFi, Point72 Ventures, and Bain Capital Crypto. Series D funded.
Requirements:
- 7+ years of software engineering experience specifically focused on Payments, FinTech, or Banking-as-a-Service (BaaS) infrastructure
- Deep proficiency with Golang in production environments
- Extensive understanding of traditional fiat networks and clearing systems (ACH, RTP, FedNow, SEPA, Swift)
- Strong expertise in SQL and complex database schema design for high-throughput, ACID-compliant financial ledgers
- Hands-on experience developing, integrating, and maintaining resilient connections with bank APIs and third-party payment processors
- Humble and scrappy get-it-done mindset; resourceful and comfortable going from 0 to 1
- Excellent problem-solving skills with ability to systematically troubleshoot complex distributed systems
- Comfort with ambiguity; ability to independently lay out and test clear hypotheses and solve architectural problems without well-defined direction
- Excellent verbal and written communication skills
Preferred Qualifications:
- Bachelor's degree in Computer Science or equivalent experience
- Experience at a banking-as-a-service, brokerage-as-a-service, or payment-as-a-service business
- Proven track record of building treasury management or automated ledgering systems from scratch
- Experience with digital assets and crypto infrastructure
- Experience with distributed systems design and messaging frameworks (Kafka, ZeroMQ, NATS)
