Javier E.
Buenos AiresArgentina

Software Engineer | Blockchain Developer

I am a dedicated and enthusiastic JavaScript developer who has been involved in the blockchain ecosystem since 2017, when I took my first course in Solidity. Over the years, I have honed my skills in both back-end and full-stack development, and have a particular interest in crypto and blockchain technologies. I am proud to have served as the CTO of Klezma, a web3 music startup where I defined the tech stack for the back-end, front-end, and smart contracts. I was responsible for overseeing the development team and ensuring that we met our business goals. Our work on Klezma can be seen at app.klezma.io, where we built a platform for music lovers to buy, sell, and trade rare music tokens. In addition to my work at Klezma, I have also collaborated with IOV Labs as one of the main contributors to RIF Identity. In this role, I was responsible for developing and implementing key features of the platform, ensuring that it was scalable, secure, and user-friendly. Throughout my career, I have been known for being a team player who is easy to work with. I am committed to delivering high-quality work and am always looking for opportunities to learn and grow. With my strong technical skills and positive attitude, I am confident that I would make an excellent addition to any development team.


  • Blockchain Architecture
  • TypeScript
  • Solidity
  • SQL
  • PostgreSQL
  • Next.js
  • NestJS

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