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Devox Software
Open roleUpdated>14 days

Senior Backend Engineer (Blockchain/Crypto)

Devox SoftwareRemote
Work model
Remote
Experience
5+ years
Employment
Contract
Compensation
Not disclosed
Technology signal
9 tags

Technology context

9

Parsed from the vacancy text; ordered by relevance to this role.

TypeScriptNode.jsJavaScriptDistributed SystemsBackendDevOpsDockerScalabilityAPI

Full listing

Role description

01

Key Requirements

  • 7+ years of backend development experience
  • Strong proficiency in JavaScript / TypeScript
  • Deep experience with Node.js in production environments
  • Hands-on experience with Web3 libraries (ethers.js, web3.js, viem, etc.)
  • Strong understanding of EVM architecture and smart contracts
  • Experience designing scalable distributed systems
  • Strong understanding of security best practices in crypto environments
  • Hands-on experience with Docker and containerized environments

02

Your Responsibilities

  • Design, build, and maintain scalable backend services using Node.js (JavaScript/TypeScript)
  • Develop and optimize blockchain integrations with EVM-compatible networks
  • Implement Web3-based interactions (smart contract calls, transaction signing, event indexing)
  • Build secure services for transaction processing, wallet operations, and balance tracking
  • Integrate with RPC providers, blockchain nodes, and third-party crypto services
  • Design event-driven and distributed architectures for high-load financial systems
  • Optimize gas usage, transaction batching, and on-chain/off-chain communication
  • Implement monitoring, logging, and alerting for blockchain infrastructure
  • Ensure security best practices in key management, signing flows, and API protection
  • Write production-grade, well-tested code (unit, integration, load tests)
  • Collaborate with product, DevOps, and security teams in a fully remote environment

03

We Offer

  • Transparent strategy and thoughtful management that keep everyone aligned
  • Space for personal growth and career development without limits
  • A culture of continuous learning: internal courses, workshops, and English classes twice a week
  • Skill up events where we share experience and stay on top of trends
  • Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy
  • Team spirit that thrives through regular events, gatherings, and celebrations