Principal Software Development Engineer, Digital Assets & Web3

📋 Description Design, develop, and operate core DW3 platform services. Build high-performance, secure distributed systems for digital asset transactions. Develop API-first services integrating blockchains, providers, and financial systems. Implement event-driven architectures using Kafka and asynchronous messaging. Build transaction orchestration, reconciliation, settlement, and asset movement workflows. Develop secure services leveraging cryptographic signatures, key management, and authentication controls embracing zero trust. 🎯 Requirements 8+ years of software engineering in regulated financial environments. Extensive hands-on experience with TypeScript, Java, JavaScript, Spring Boot, Node.js, and NestJS. Experience building Web3 platforms, wallet infra, or blockchain apps; Web3.js, Ethers.js, and blockchain SDKs. Strong concurrency, multi-threaded, and asynchronous programming for high-throughput distributed systems. Deep understanding of API-first architectures, microservices, and distributed systems design. Experience with Apache Kafka, event streaming, and pub/sub messaging patterns. 🎁 Benefits In-office cadence: New York, Chicago, and Lithuania with four days in the office per week. Equity and 401(k) match benefits. Comprehensive health insurance coverage and wellness reimbursement. Company-provided phone and personal development allowance. Generous PTO, holidays, and extended leave. Strong engineering culture with code reviews, automated testing, and CI/CD practices.