Senior Backend Engineer

Offchain Labs

. Work on the core infrastructure powering Arbitrum, the leading Ethereum scaling solution .

Posted 9/24/2026full-timeRemote • New York • United StatesSenior💰 $193,461 - $291,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing, developing, and securing blockchain-based backend systems, with a strong focus on distributed systems, performance optimization, and security. Proficient in backend programming languages and cloud infrastructure technologies, ensuring high reliability and scalability.

Highest-signal resume keywords

Blockchain ProtocolsBackend Programming Languages (Go, Rust)Distributed Systems DevelopmentCloud Infrastructure (AWS, Docker, Kubernetes)Security-Focused Coding

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Blockchain-Based Backend SystemsDistributed Data StructuresReliable Broadcast ProtocolsHigh-Performance Database Storage EnginesWebAssemblyCompiler Pipeline DesignMicroservices IntegrationAPI-First StrategiesPerformance OptimizationArchitectural Standards

Soft Skills

CollaborationTechnical SupportProblem SolvingPeer Code ReviewCommunication

Tools & Technologies

AWSDockerKubernetesNitro TestnodeSDK Frameworks

Industry Keywords

Ethereum Scaling SolutionL1s to L2s ProtocolsCybersecuritySoftware Engineering Best PracticesTechnical Roadmap

Tech Stack

Tools & technologies

AWSCloudCyber SecurityDistributed SystemsDockerKubernetesMicroservicesRustGo

About the role

Key responsibilities & impact

Work on the core infrastructure powering Arbitrum, the leading Ethereum scaling solution
Tackle complex distributed systems challenges, optimize performance, and contribute to Arbitrum’s security and scalability
Collaborate with research, product, and blockchain engineering teams
Provide ongoing technical support and engineering guidance to clients and internal stakeholders by diagnosing and resolving core platform engineering issues
Maintain the Nitro Testnode product, including implementing enhancements, troubleshooting issues, and ensuring reliability and usability
Conduct peer code reviews to ensure code quality, architectural consistency, and adherence to software engineering best practices
Establish and evangelize backend architectural standards, technology-stack selection, and engineering best practices
Design high-performance compiler pipelines and extensible SDK frameworks
Collaborate with Security to resolve complex security issues and identify potential threats and vulnerabilities
Drive the technical roadmap with Product for complex distributed systems and data modeling
Oversee integration of multiple microservices, database scalability and integrity under high load, and API-first strategies for long-term system interoperability

Requirements

What you’ll need

Bachelor’s degree or U.S. equivalent in Computer Science, Cybersecurity, Computer Engineering, or a related field, plus 5 years of professional experience as a Software Engineer, Software Architect, or any occupation, job title, position designing, developing, and securing blockchain-based backend systems
In lieu of a Bachelor's degree plus 5 years of experience, a Master's degree or U.S. equivalent in Computer Science, Cybersecurity, Computer Engineering, or a related field, plus 3 years of professional experience as a Software Engineer, Software Architect, or any occupation, job title, position designing, developing, and securing blockchain-based backend systems
3 years of professional experience developing backend systems utilizing backend programming languages, including Go or Rust
3 years working on protocols that span from L1s to L2s, including when the system is trying to reduce dependence on L1 smart contracts
3 years of professional experience collaborating with research teams to conduct cutting-edge research in blockchain technologies and cryptocurrency platforms
3 years of professional experience building distributed systems, focusing on reliable broadcast protocols, distributed data structures, and high-performance database storage engines
3 years of professional experience working in collaboration with security and with coding in a security-focused mindset in distributed systems environments
3 years of professional experience working with blockchain protocols
1 year of experience working with WebAssembly, including writing high performant and high security code in production environments
1 year of professional experience utilizing cloud infrastructure and containerization technologies, including AWS, Docker, and Kubernetes
Must reside in the U.S.
This role cannot be performed in California or Colorado

Benefits

Comp & perks

Remote-first global workforce + NY office
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