Backend Engineer (Contract, Mexico)

Strong experience developing backend systems in Node.js, Rust, or similar languages. Proficiency with PostgreSQL, Prisma, or equivalent data stores. Understanding of API design, authentication flows, and performance optimization. Experience with distributed systems, financial infrastructure, or blockchain. Excellent communication skills in Business English (spoken & written).

Design and build backend services in Node.js and Rust for Nexus’s Layer 1 and DEX. Develop APIs and data pipelines for trading, liquidity, and on-chain verification. Build and maintain blockchain infrastructure components (RPC endpoints, explorers, dev tools). Optimize performance and scalability across distributed systems. Collaborate with frontend engineers to define data contracts and API interfaces. Write clean, well-tested code that supports verifiable financial applications.