About Nexus
Nexus is building the foundation for verifiable finance, an economic system where every transaction, order, and settlement can be proven on-chain with cryptographic assurance. To do this we’re developing a DEX Layer 1 blockchain purpose-built for the AI economy, powered by idle compute from millions of people around the world, and verified with zero-knowledge proofs. This is finance rebuilt for the future: verifiable, scalable, and open to all.
Nexus has raised $25M in Series A funding https://www.prnewswire.com/news-releases/nexus-closes-25m-series-a-to-enable-verifiable-computation-via-zero-knowledge-cryptography-302168070.html?ref=blog.nexus.xyz from Lightspeed, Pantera, Dragonfly, SV Angel, and more.
Location: Remote (Brazil)
Type: Contract
Duration: 12 months with potential for extension
THE ROLE
We’re expanding our backend engineering team in Latin America to design and deliver the infrastructure behind Nexus’s Layer 1 and its native DEX. As a Backend Engineer, you’ll build the systems and services that make verifiable trading, settlement, and financial data possible — ensuring reliability, speed, and transparency at scale.
You’ll collaborate with protocol, product, and frontend teams in San Francisco while contributing remotely from Brazil.
WHAT YOU’LL DO
- 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.
WHAT WE’RE LOOKING FOR
- 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).
BONUS POINTS FOR
- Experience building or scaling financial systems (exchanges, payments, clearing).
- Familiarity with blockchain architectures, smart contracts, or consensus protocols.
- Exposure to DevOps tooling (Docker, Kubernetes, Terraform, AWS).
- Experience in high-performance or low-latency system design.
WHY JOIN US
- Build the backend systems powering the Layer 1 for Verifiable Finance.
- Collaborate with experts across blockchain, AI, and financial infrastructure.
- Shape the foundation for a verifiable, transparent, global trading system.
- Thrive in a fast-moving, high-impact engineering environment.