Develop core backend infrastructure for Arbitrum, Ethereum's leading scaling solution. Tackle distributed systems challenges, optimize performance, ensure security and scalability using concurrency languages like Go, Rust, or C++.
Salary not listed
RemoteBackend Engineering
About the role
Responsibilities
Work on the core infrastructure powering Arbitrum, the leading Ethereum scaling solution.
Tackle complex distributed systems challenges.
Optimize performance.
Contribute to the security and scalability of Arbitrum.
Collaborate closely with research, product, and blockchain engineering teams.
Requirements
Extensive production experience with a programming language that supports concurrency (e.g. Go, C++, or Rust).
Strong sense of ownership, driving innovative solutions through rigorous experimentation.
Up to speed on the latest technologies.
Open, transparent communication style and experience working in tight collaboration.
Open to feedback and self-improvement.
Help beyond immediate day-to-day work.
Significant contributions to products in your career.
Security-focused mindset, watching for threats and vulnerabilities.
Nice to Have
Familiarity with WebAssembly, particularly high performant and secure production code.
Passion for, curiosity about, or experience with Blockchain technology.
Experience with compilers, architecting systems, and developing SDKs.
Perks
Remote-first global workforce + NY office.
Annual company offsite + team onsites.
Professional reimbursement program.
Medical, dental & vision coverage (US + some other countries).
Senior backend engineer building scalable C#/.NET services for payment routing, connector management, and high-volume transaction processing in a fintech payments infrastructure platform. Requires 5+ years production backend experience, strong payments/fintech background, and technical leadership skills.
Salary not listed
Remote5+ YOEBackend Engineering
Senior Backend Engineer
AurelianSeattle, WA
Senior Backend Engineer building core voice AI and automation platform for 911 centers. Architect scalable systems, optimize realtime AI pipelines and audio latency, build analytics and integrations. Requires 4+ years software engineering experience with strong fundamentals.
160k – 220k/yr
On-site4+ YOEBackend Engineering
Senior Software Engineer, Backend
Vector LegalUnited States
Senior Backend Engineer building scalable distributed systems for freight and field service automation platform. Requires significant enterprise software development experience and distributed systems expertise; Java ecosystem preferred.
180k – 200k/yr
Remote5+ YOEBackend Engineering
Software Engineer, Backend
MercorSan Francisco, CA
Own and define the shared backend architecture, core services, data models, and APIs that power Mercor's rapidly scaling talent network and AI training products. Requires 8+ years backend engineering experience with a track record of organization-wide architectural ownership and complex migrations.
200k – 500k/yr
On-site8+ YOEBackend Engineering
Senior Engineer I
SimplePracticeSanta Monica, CA
Senior backend-focused engineer building the next generation practice management platform at SimplePractice. Requires 6+ years Ruby on Rails full lifecycle experience (or 4+ with Master's), JavaScript frameworks, AI/ML features, scalable web apps, and compliance knowledge (PCI/HIPAA).