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A true peer-to-peer network for digital savings, loans, and payments

Database and Middleware Senior Developer


Change the world of banking by joining DeFiner and introducing a technology-driven bank relying on smart contracts and blockchain instead of brick and mortar and bankers.

DeFiner is a startup that is going to change the world of banking through investment in technology. Be one of the first senior developers at DeFiner.


While headquartered in Minneapolis, MN, you are not required to relocate to Minneapolis due to our decentralized team culture. Team working hours fit well within any of the US time zones.

Start Date

We would like you to start as soon as possible.

Why you should apply

  • Be one of the first senior developers to join DeFiner
  • Architect, design middleware component of a three-tier system
  • Help move the company to one of the top leading cryptocurrency companies


  • A degree in computer science or relevant field or comparable experience
  • Experience in blockchain, Ethereum and solidity
  • Extensive experience with designing databases and providing access through APIs to the database
  • Ability to solve complex problems and express solutions in laymen’s terms
  • Excellent oral and communication skills
  • Ability to architect end to end solutions
  • Firm grasp of object-oriented programming
  • Coding skills in at least one of the following languages: C++, Java, TypeScript
  • Ability to write design documentation and review code for other developers


  • Ensure excellent architecture and design for all features
  • Design, code, and deploy database as the middle layer with input from Ethereum blockchain and APIs to fulfill requests from DeFiner client Application.
  • Architect new features into the middle layer based on client and blockchain requirements.
  • Ensure the highest level of security measures in the system
  • Review code was written by other developers
  • Write design documents and review design documents
  • Ensure full automated testing of the middle layer.

How to Apply

Please email your resume to [email protected].

DeFiner website

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