Portfolio Jobs

Polychain Capital
Polychain Capital
Create a profile to get alerted when relevant jobs to you are posted by our network.

Blockchain Engineer



Software Engineering
Toronto, ON, Canada · Remote
Posted on Friday, June 30, 2023

The ideal candidate will be responsible for developing high-quality open source software. They will also be responsible for designing, implementing, and deploying scalable Rust and Python code.


  • Establish a refined culture of security observability and monitoring.
  • Write and maintain sustainable, high-quality, high-performance code for infrastructure and security automation.
  • Develop software as part of a decentralized team.
  • Analyze and maintain existing open source software.
  • Build tooling to analyze open source code that we are building.
  • Research and understand the landscape of cryptomining malware.
  • Identify entry points and penetration spots on the network.
  • Discover and fix programming bugs.
  • Respond to bug emails submitted by security researchers and work on remediation.
  • Review code written by other team members in a timely and organized manner.


  • Bachelors in Computer Science, Engineering, Mathematics, or Statistics.
  • Security mindset and strong analytical skills.
  • 3-5 years experience building Blockchains in any technology.
  • Excellent communication skills and ability to remain calm under high-pressure situations.
  • Experience working with Docker, Kubernetes, and other distributed SaaS infrastructure.
  • Web, database, information and/or infrastructure security.
  • Self-motivated and able to be trusted with a high level of autonomy.
  • Excellent communication skills as our entire team is remote.
  • Machine learning development experience an asset.
  • Programming knowledge required: Rust, Substrate, Python, Distributed computing, Deep learning concepts a plus.