Full Stack Engineer / Senior Backend Engineer at Improbable / Offchain Labs · Web3Vacancy
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Full Stack Engineer / Senior Backend Engineer
Remote
$80,000–$150,000
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About this role

Join Improbable or Offchain Labs as a Full Stack or Senior Backend Engineer, working on cutting-edge blockchain technology with competitive salaries and remote work options.

Description

Improbable is a British technology unicorn ($5 billion+ valuation) creating L1 Somnia, processing 1M+ TPS with 110M+ wallets and 70+ projects. Offchain Labs is the core of the Arbitrum ecosystem ($20 billion TVL, 2.1 billion+ transactions) with $124 million in funding.

Responsibilities

Full Stack Engineer (Improbable / Somnia)

  • Full lifecycle (prototype → deployment)
  • Create SDK/CLI/internal tooling
  • Collaborate with DevRel/Marketing/BD

Senior Backend Engineer, Rust (Offchain Labs / Arbitrum)

  • Develop Nitro (Arbitrum node)
  • Optimize execution engine / networking / state management
  • Ensure observability and security
Requirements

Full Stack Engineer (Improbable / Somnia)

  • Strong TypeScript
  • Understanding of on-chain products
  • Autonomy and ability to balance speed and reliability

Senior Backend Engineer, Rust (Offchain Labs / Arbitrum)

  • Expert in Rust
  • Experience in production development
  • Interest in runtimes / WASM / developer tooling
  • Plus: experience with WASM, open-source in Rust ecosystem, knowledge of blockchain infrastructure
Conditions & Benefits

Full Stack Engineer (Improbable / Somnia)

  • Salary: ~$80,000 – $100,000 per year (gross)

Senior Backend Engineer, Rust (Offchain Labs / Arbitrum)

  • Salary: ~$110,000 – $150,000 per year (gross)
Job Details
Salary$80,000–$150,000
LocationRemote
AI Score★★★★★★★★☆☆ 8/10
PostedJun 14, 2026 (12h ago)
Tags & Skills
devweb3fintechdefil1l2cryptoFull Stack Developerremote
Tech Stack
TypeScriptGolangRustWASM

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