Jan 03, 2022

Senior Go Developer - BE Team

$70,000 - $130,000 yearly
  • Polygon - Hermez
Full time Back-end development

Job Description

Polygon Hermez is a blockchain startup formed by over 35 professionals. The team is spread all over the world, and we have offices in Switzerland and Spain. Polygon Hermez is a proud member of the Polygon ecosystem, you can read more here.

Our goal is to give communities and individuals the freedom to self-organize. Every human should have the power to be themselves and preserve their privacy. We aim to improve the scalability of the Ethereum blockchain, creating an inclusive and accessible blockchain payment network by using zero-knowledge technology.

Our protocol Polygon Hermez is a decentralized zero-knowledge rollup that scales the Ethereum network and lowers the cost of transactions. We do this while enhancing user experience and giving back to the blockchain community. More information can be found on our website: https://hermez.io

We offer remote and flexible work. You can expect a warm welcome from a friendly and international team that will support you in your personal and professional growth. This is an exciting opportunity to take an active part in the blockchain space and contribute to the decentralization of the future.

We're looking for a Senior Backend Golang Engineer to develop our core technology. You'll work with the engineering team to research, spec, and implement blockchain scalability solutions that enable mass adoption. In addition, as a Backend Golang Engineer, you will collaborate with team members in making architectural decisions, choosing best practices, and bringing in new ideas.

We are looking for someone with the following experience and skills: 

  • Minimum 7-8 years experience in designing and implementing quality backend architectures
  • Min 2-3 years experience working with Golang. 
  • Previous experience working with SQL, noSQL Database and service APIs. Messaging services, cryptography, and GRPC are a plus.
  • Knowledge in Ethereum blockchain. Smart Contract Development in Solidity is an advantage.
  • Experience in taking ownership of the development and maintenance of the backend stack.
  • Experience working with product teams to transform ideas and designs into great solutions.
  • Develop high-quality, performant, modern, clean and readable code.
  • Previous experience working with Kanban task management framework is nice to have.
  • Good written and verbal communication skills in English


  • Design and implement quality backend architectures that connect with blockchain platforms like Hermez and Ethereum. 
  • Develop high-quality, performant, modern, clean and readable code within tight deadlines. 
  • Take ownership of the development and maintenance of the project from ideation to deployment. 
  • Work with the engineering, design, and product teams collaboratively, contributing ideas that add value to our product roadmap and company goals. 

It will be nice if you are:

  • Experienced working in projects using cryptography, complex maths and complex database structures.
  • Experienced in designing blockchain architectures.
  • Experienced in high throughput production services.
  • Familiar with existing L2 blockchain solutions.
  • Familiar with Zero-Knowledge technology.
  • Familiar with DevOps stack.

Last but not least: 

We are looking for positive, optimistic, proactive, and creative people who are looking forward to building innovative technology.

If you think that your profile matches this position, please send your details to us.

Good luck!

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