Staff Software Engineer, Crypto

🕒 April 29

🇺🇸 United States – Remote

💵 $190k - $220k / year

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

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Cross River

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2008

🏦 Banking

💳 Fintech

☁️ SaaS

💰 $620M Series D on 2022-03

Banking • Fintech • SaaS

Cross River is a leading technology-focused financial company that provides API-driven banking infrastructure. They enable a wide range of financial services, leveraging partnerships with major payment networks like Visa, Mastercard, and American Express to offer card issuing solutions. Cross River supports innovation in financial services through a variety of products, including infrastructure for banks, digital lending solutions, faster payments like FedNow® and RTP®, and card and account programs for credit and debit. Their solutions cater to numerous sectors, redefining financial services with compliance-integrated solutions, serving neobanks, digital lenders, and various institutional credit investors.

📋 Description

• Provide technical leadership: define and drive the technical vision and architecture for crypto-related products, services, and infrastructure • Design, develop, and deliver scalable, secure and performant software components • Provide technical mentorship and guidance to senior and mid-level engineers; conduct code reviews and promote engineering best practices • Stay at the forefront of blockchain protocols, DeFi, tokenization standards, and crypto industry trends; evaluate and recommend emerging technologies • Drive system reliability, incident response, and operational excellence across crypto platform services

🎯 Requirements

• 5+ years of experience with blockchain technologies, cryptocurrency protocols, or digital asset platforms • 10+ years of experience developing enterprise systems in C# • 10+ years of experience with SQL, preferably PostgreSQL or SQL Server • Deep understanding of blockchain fundamentals — consensus mechanisms, smart contracts, wallet management, key custody, transaction signing, and on-chain/off-chain data flows • Experience integrating with major blockchain networks (e.g., Bitcoin, Ethereum, Solana, or similar) • Solid grasp of cryptographic principles — hashing, encryption, digital signatures, HSMs, and key management • Strong communication skills • Cloud Architecture - preferably AWS • Docker / Containers • Experience designing and developing distributed systems and event driven architecture is a plus. Ideally with understanding or exposure to: • MassTransit or NServiceBus • RabbitMQ • Idempotency