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Senior Infrastructure Software Engineer

Nexus

Salary not specified
Oct 2, 2025
San Francisco, CA, US • New York, NY, US
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Nexus is innovating at the intersection of artificial intelligence, blockchain, and zero-knowledge cryptography to build a Layer 1 for the AI era. The company is seeking to design and scale the core infrastructure powering its Layer 1 blockchain and its first core application: a high-performance DEX enshrined in the L1 protocol, requiring deep expertise in low-latency distributed systems and the ability to deliver secure, production-grade infrastructure for financial applications.

Requirements

  • Expertise in low-latency, high-throughput systems (e.g., HFT, distributed trading platforms, real-time financial exchanges).
  • Strong programming background in Rust (preferred), C++, Go, or similar systems languages.
  • Deep knowledge of network protocols, concurrency, and distributed systems.
  • Experience delivering secure, production-grade systems with measurable performance gains.
  • Previous experience in DeFi infrastructure, Layer 1 blockchains, or consensus protocols.
  • Familiarity with MEV prevention, transaction ordering, or fairness protocols.
  • Exposure to cryptography, zero-knowledge proofs, or formal verification.

Responsibilities

  • Architect and implement low-latency, high-throughput financial infrastructure for Nexus’s Layer 1 and DEX.
  • Own major roadmap milestones: public testnet → mainnet → institutional-grade performance.
  • Optimize consensus and transaction pipelines for speed, determinism, and security.
  • Collaborate with cryptography and protocol teams to integrate cutting-edge zero-knowledge proofs into production systems.
  • Mentor mid-level engineers and establish engineering best practices for reliability, security, and observability.
  • Ensure high availability and fault tolerance for mission-critical financial systems.

Other

  • Remote in New York or hybrid in San Francisco
  • 6–10+ years in software engineering, with at least 3+ years in infrastructure or systems roles.
  • Define the engineering strategy and technical foundation for the future of decentralized finance.
  • Shape the engineering culture, processes, and products at an early, high-impact stage.
  • Play a pivotal role in building the next generation of financial infrastructure on Nexus Layer-1.