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Senior Backend Developer

Full Time


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KNØX is a custodian for cryptocurrencies. We're looking for a talented backend programmer to develop secure and robust components for our core activities: key management, payment processing, and risk transfer.

The tools and systems you build will be part of our core custody infrastructure. You must be able to design and implement software securely and concisely.

To excel at KNØX you must demonstrate exceptional performance across multiple paradigms. You're likely someone who has an eye for details which gives rise to a deep interest in distributed systems, writing bug-free code, and the practice of engineering software.

If you are interested in leading projects from conception to deployment and exploring a problem space without established solutions, we'd love to talk.


  • 3+ years of professional programming experience
  • Fluency in one of C, Go, or Python
  • Fluency in at least one language with a real type system
  • Ability to deploy and monitor containerized software in a Linux environment
  • Proficiency in English, spoken and written
  • Deep knowledge of one of the following:
  • Information security
  • Networking
  • Distributed systems
  • Database design and operation
  • Embedded systems
  • Formal methods


  • Specify and implement controls to ensure the security of our services
  • Collaborate with our product development team to specify and implement APIs that front-end implementations will consume
  • Research, communicate, and implement the state of the art in secure software.

Nice to have

  • Degree in computer science or related field
  • Experience with financial services or blockchain-based systems
  • Enough group theory to be dangerous

Benefits and Salary

  • C$80k - 125k | Equity
  • Gym allowance (and a 24/7 gym one block from the office!)
  • Flexible hours and work-from-home
  • Three weeks vacation, two weeks of Christmas day offs, personal days
  • Spacious, sunny office
  • Right across the road from Parc Jarry
  • Meaningful equity and competitive salaries
  • Health and dental insurance
  • Fully stocked kitchen, snacks, and coffee. Good coffee.
  • Transit allowance

Remote details

Preferred Timezone: (GMT-05:00) Eastern Time +/- 4 hours

Office Location: Montréal, QC, Canada. Employees can also work full time from this office.

About KNØX

KNØX is an institutional-grade digital asset custodian: we hold cryptocurrencies securely and reliably. Our service allows exchanges, funds, and more conventional financial institutions to hold these unconventional assets while minimizing risk.

As a team, we design, implement, deploy, and operate a range of technologies and processes to keep our clients' assets secure. We look for intelligence and unorthodoxy in the people we work with. In return, we offer a high level of independence and flexibility.


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