Top Cryptocurrency Software Engineer Jobs in New York City, NY

As a Senior Software Engineer, you will lead technical design, execution, and delivery of banking features, drive architectural decisions, and collaborate across teams to enhance customer experiences.

Design, build, and own scalable microservices and secure APIs that transfer value across blockchain and banking protocols. Extend in-house blockchain infrastructure, integrate with banks and cloud services, troubleshoot production issues, document system and testing procedures, and collaborate with product and engineering teams to deliver reliable payment experiences.

Staff backend infrastructure engineer responsible for platform reliability, performance, regional resilience, failover, migrations, data pipelines, observability, incident response, and shared engineering tooling. The role leads cross-team technical direction, mentors engineers, and partners with security and compliance in a regulated financial services environment. Key technologies include Java, MongoDB, Kubernetes/GKE, Terraform, Datadog, and cloud infrastructure.

Leads architecture, development, testing, implementation, and support of enterprise Workday applications using Workday Extend and integration technologies. Designs scalable frameworks, APIs, security models, automation, and engineering standards; mentors engineers and guides delivery across Agile teams. Partners with business, product, security, and engineering stakeholders to modernize HR technology, optimize workflows, resolve production issues, and improve platform reliability, efficiency, and employee experiences.

Design and own secure, scalable wallet infrastructure for custody, key management, transaction signing, authorization, recovery, and multichain systems. Architect support for MPC, HSMs, secure enclaves, TEEs, smart contract wallets, account abstraction, and emerging cryptographic approaches. Define security boundaries, policy engines, secrets management, authentication, and programmable authorization while making foundational build-versus-buy decisions and guiding systems from first principles through production.

Design, build, and operate foundational developer infrastructure across CI, build systems, deployment orchestration, and test platforms. Improve build speed, deployment safety, and test reliability while owning services end to end, including SLOs, observability, and on-call responsibilities. Partner with engineering teams to address platform pain points and lead cross-cutting technical projects through production.

Build and own scalable backend services, infrastructure, and data systems for crypto, Web3, wallet, tokenization, and blockchain offerings. Develop smart contract integrations, chain indexers, DEX trading flows, and systems connecting traditional financial infrastructure with on-chain settlement. Ensure correctness, auditability, scalability, and reliability while collaborating with product, compliance, platform teams, and external partners.

Build and own end-to-end features for a fast-paced mobile cryptocurrency trading app. Design scalable, high-performance, secure backend and full-stack systems; solve distributed systems and data-processing challenges; improve product efficiency; and collaborate autonomously with a small remote team across time zones.

Build polished iOS interfaces by translating UX/UI designs into scalable, high-performance applications. Responsibilities include developing with Swift, UIKit, SwiftUI, and iOS technologies; optimizing performance across devices; collaborating with designers; and managing the full software development lifecycle from concept through deployment. The role also involves maintaining app architecture, implementing coded design systems, and delivering seamless user experiences.

Leads development of low-latency, high-throughput algorithmic trading and smart order routing systems. Designs routing strategies based on execution quality, liquidity, latency, and cost; integrates systems with trading, booking, and reporting platforms; monitors performance and resilience; supports production trading; contributes to architecture and mentors developers. Requires extensive experience in algorithmic or high-frequency trading, market data processing, FIX, trading infrastructure, Linux, networking, and performance optimization.