Senior Software Engineer

API3 builds blockchain-native, decentralized APIs with DAO-governance and quantifiable security. We have recently raised a high profile seed round, executed a public distribution, and are now looking to fill some key roles in our core technical team.

Airnode is a serverless oracle node designed to be operated by API providers, and will act as a gateway between traditional Web APIs and smart contracts running on blockchains. This position will help extend Airnode to support new protocols and functionality, improve the CI/CD pipeline of Airnode and the automation testing for API3 solutions.

You can refer to the API3 whitepaper and our Airnode article for more information.


  • • Work on mission-critical projects with limited/no supervision
  • • Play an active role in the design and architecture of our solutions
  • • Learn new technologies as needed
  • • Work remotely with an internationally distributed team


  • • 5+ years of professional experience as a software developer
  • • Very proficient with JavaScript/TypeScript
  • • 2+ years of experience with Node.js
  • • Experience with microservice architecture
  • • Experience with Docker
  • • Experience with automation testing
  • • Good grasp of modern software development tools (testing frameworks, CI/CD, version control, etc.)


  • • Experience with Terraform
  • • Solidity experience
  • • Experience with serverless functions in AWS, Azure and/or GCP