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

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