Backend Engineer (Contract, Buenos Aires)
NexusVicente López, Buenos Aires, Argentina • San Francisco, California, United States
Posted October 8, 2025
Contract / Temporary
About the Company
Nexus is a pioneering company at the forefront of the AI era, specializing in developing cutting-edge Layer 1 solutions. Their core business revolves around providing robust infrastructure that supports advanced artificial intelligence applications, enabling businesses to harness the full potential of AI technologies. Nexus stands out through its innovative approach, dedication to quality, and commitment to fostering a culture of innovation and excellence.
Job Description
Nexus is innovating in AI, blockchain, and zero-knowledge cryptography to build a Layer 1 for the AI era. They are seeking a Backend Engineer to design and deliver the infrastructure supporting their Layer 1 and native DEX. The role involves collaborating with teams in Buenos Aires and San Francisco to deliver reliable, fast, and transparent trading systems.
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).
