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[Remote] Senior Backend Engineer, Rust

Remote, USA Full-time Posted 2026-06-16

Note: The job is a remote job and is open to candidates in USA. Offchain is a pioneering company in blockchain scalability and security, transforming interactions with decentralized applications. They are seeking a Senior Backend Engineer to join the Nitro team, focusing on building and optimizing the core technology that powers Arbitrum, the leading Ethereum scaling solution.

Responsibilities

  • Building and improving Nitro, the core node software that powers Arbitrum
  • Designing and optimising systems responsible for transaction execution, state management, and network performance
  • Scaling throughput and improving the performance and efficiency of Arbitrum's core infrastructure
  • Solving distributed systems challenges across a large-scale blockchain network
  • Enhancing reliability, observability, and security across critical infrastructure
  • Developing new capabilities for the Arbitrum stack

Skills

  • Experienced Rust engineer with a track record of building production systems
  • Comfortable working across distributed systems, infrastructure, and performance-critical applications
  • Motivated by solving complex technical problems at scale
  • Able to take ownership of projects from technical design through implementation and operation
  • Pragmatic, collaborative, and capable of making sound engineering trade-offs
  • Interested in runtimes, execution environments, WASM, developer tooling, and/or systems programming
  • Maintained a security focused mindset, always keeping an eye out for potential threats and vulnerabilities in your code
  • Experience with WASM
  • Familiarity with blockchain infrastructure or smart contract platforms
  • Open source contributions within the Rust ecosystem

Benefits

  • Remote-first global workforce + NY office
  • Annual company offsite + team onsites
  • Professional reimbursement program (facilitates industry conference attendance, certifications, and more)
  • Medical, dental & vision coverage (US + some other countries)
  • 401k retirement plan + company match (US only)
  • Wellness stipend
  • Home office set up / ergonomic equipment program

Company Overview

  • Offchain is the strategic infrastructure partner for the world’s most ambitious companies. It was founded in 2018, and is headquartered in New York, New York, USA, with a workforce of 51-200 employees. Its website is https://offchainlabs.com/.
  • Company H1B Sponsorship

  • Offchain has a track record of offering H1B sponsorships, with 1 in 2025, 2 in 2024, 2 in 2023. Please note that this does not guarantee sponsorship for this specific role.
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