5+ years of experience in backend development 2+ years in a lead or senior engineering role Proficiency in TypeScript, Go, Rust, or Python Deep understanding of distributed systems, API design, and blockchain consensus & node architecture Experience with databases (PostgreSQL, MongoDB, Redis) and event-driven systems (Kafka, RabbitMQ) Hands-on experience integrating with blockchains, nodes, or smart contracts Familiarity with DevOps best practices, deploying high-availability services across multiple regions (Kubernetes, GCP/AWS) Strong focus on security, reliability, and performance optimization Excellent leadership, communication, and cross-functional collaboration skills