Senior Backend Engineer

You will work on the core infrastructure powering Arbitrum, tackling complex distributed systems challenges and optimizing system performance. You will contribute to the security and scalability of Arbitrum, collaborate closely with research, product, and blockchain engineering teams, and write production-quality concurrent code (Go, C++, or Rust). You will maintain a security-focused mindset, help improve compilers, SDKs, and WebAssembly code where applicable, and drive rigorous experimentation and ownership of critical backend systems.

Responsibilities

• Work on the core infrastructure powering Arbitrum
• Tackle complex distributed systems challenges
• Optimize system performance
• Contribute to security and scalability
• Collaborate closely with research product and blockchain engineering teams
• Write production-quality concurrent code

Requirements

• Production experience with a concurrency-supporting language (Go C++ or Rust)
• Strong sense of ownership
• Experience collaborating closely with teammates
• Security-focused mindset
• Proven contributions to production products

Benefits

• Remote-first global workforce with New York office
• Annual company offsite and team onsites
• Professional reimbursement program for conferences and certifications
• Medical dental and vision coverage (US and some other countries)
• 401k retirement plan with company match (US only)
• Wellness stipend
• Home office setup and ergonomic equipment program