Product Engineer / Backend Staff Engineer at Somnia / Koinly · Web3Vacancy
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Product Engineer / Backend Staff Engineer

Remote
$80,000–$140,000
◆ 8/10 cryptodefiweb3Full Stack Developer
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About this role

Join Somnia as a Product Engineer or Koinly as a Backend Staff Engineer, working on high-performance blockchain and crypto tax reporting platforms. Competitive salaries and remote work options available.

Description

Somnia is a high-performance L1 blockchain (1M+ TPS) with AI inference, backed by Improbable and $150 million from a16z, SoftBank. Koinly is one of the fastest-growing crypto platforms for tax reporting, serving hundreds of thousands of investors worldwide.

Responsibilities

Product Engineer (Somnia / DreamDEX)

  • Develop frontend product for DEX.
  • Influence product decisions and UX.

Backend Staff Engineer (Koinly)

  • Develop and optimize backend platform for processing crypto transaction data.
  • Work with DeFi protocols.
Requirements

Product Engineer (Somnia / DreamDEX)

  • Experience in developing DEX, trading platforms, or trading products.
  • Stack: JavaScript/TypeScript, React, Next.js.

Backend Staff Engineer (Koinly)

  • 8+ years in complex, data-heavy distributed systems.
  • Stack: TypeScript (Bun), PostgreSQL, RabbitMQ, Redis, Rust (production).
Conditions & Benefits

Product Engineer (Somnia / DreamDEX)

  • Salary: ~$100,000 – $140,000 per year (gross).

Backend Staff Engineer (Koinly)

  • Salary: $80,000 – $100,000 per year (gross).
  • Location: Remote (Europe only).
Job Details
Salary$80,000–$140,000
LocationRemote
AI Score★★★★★★★★☆☆ 8/10
PostedAug 5, 2026 (15d ago)
Tags & Skills
cryptodefiweb3Full Stack Developerremote
Tech Stack
JavaScriptTypeScriptReactNext.jsPostgreSQLRabbitMQRedisRust
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