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Senior Backend Engineer - Solidity

Kraken

$127,000 - $203,000
Sep 12, 2025
Remote, US
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Kraken aims to accelerate the global adoption of crypto and unlock the potential of blockchain technology by building innovative on-chain solutions and integrating decentralized protocols into its products.

Requirements

  • 5+ years of full-time engineering experience within a large technology organization or fast-growing startup
  • 5+ years of Solidity familiarity and development experience
  • Experience working with blockchain technology and DeFi
  • Experience building backend services with Node.js, Typescript
  • Experience building and maintaining high-volume production-quality systems using Solidity frameworks such as Foundry, OpenZeppelin, etc.
  • Experience working with GraphQL, SQL, RESTful APIs and WebSockets
  • Good understanding of best practices with version control and continuous integration

Responsibilities

  • Collaborate with product managers to understand business needs
  • Work jointly with frontend and devOps across the software development lifecycle from writing technical specifications in the form of RFCs to feature development and testing
  • Develop and maintain services that power on-chain experiences
  • Integrate third-party APIs and multiple blockchain networks into products
  • Design and engineer efficient and secure Solidity contracts
  • Design and implementation of low-latency, high-availability scalable systems
  • Write reusable, testable, and efficient code

Other

  • Take complete end-to-end ownership of your tasks
  • Clear passion for both Software Engineering and Crypto
  • Applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution
  • We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance
  • Kraken is an equal opportunity employer and does not tolerate discrimination or harassment of any kind