Senior Backend Engineer, Rust
Offchain Labs, Inc. is the Princeton-founded blockchain infrastructure company publicly branded as Offchain, developing and operating products including Arbitrum, Prysm, and ZeroDev.
Maintainer signals as of 8/29/2026
Funding history
Projects
About Offchain Labs
Offchain Labs originated the Arbitrum optimistic-rollup technology and continues to develop Ethereum and onchain infrastructure spanning scaling, consensus, smart accounts, interoperability, and cryptographic research. Its current corporate site presents Offchain Labs as the research and protocol-engineering arm within the broader Offchain brand; the site’s legal footer identifies the entity as Offchain Labs, Inc.
Skills
About the Role
Join the Nitro team to build the core technology powering Arbitrum. Work across execution engines, networking, state management, performance optimization, reliability, and Stylus, which enables Rust and C/C++ smart contracts to compile to WebAssembly and execute alongside the EVM.
Requirements
- 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 (nice to have)
- Familiarity with blockchain infrastructure or smart contract platforms (nice to have)
- Open source contributions within the Rust ecosystem (nice to have)
Responsibilities
- Build and improve Nitro, the core node software that powers Arbitrum
- Design and optimize systems responsible for transaction execution, state management, and network performance
- Scale throughput and improve the performance and efficiency of Arbitrum's core infrastructure
- Solve distributed systems challenges across a large-scale blockchain network
- Enhance reliability, observability, and security across critical infrastructure
- Develop new capabilities for the Arbitrum stack
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
