Backend Engineer (Contract, Brazil)
Company:Nexus
Location:Brazil
Languages:English
Seniority level:Strong experience
Experience:Strong experience
Skills:
Backend DevelopmentNode.jsPostgreSQLBlockchainREST APIRust
Requirements:
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).
Responsibilities:
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. 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.
