• Hanover, MD, USA
  • 120000-165000 per year
  • Salary
  • Full Time

CNO Test Engineer

Location: Hanover, MD (On-site)

Salary: $120,000.00 - $165,000 per year

Ring0 Technologies ("Ring Zero") is hiring a motivated CNO Test Engineer who is passionate about Cybersecurity. This position will be integrated into a cutting-edge Cybersecurity team and will be responsible for for supporting complex and challenging virtual machine testing environments.

Security Requirement: US Citizen with an active TS/SCI w/Polygraph

Responsibilities include, but are not limited to:

  • Develop operational test scenarios and produce test artifacts that provide suggestions regarding improvements to the development team.

  • Develop test automation scripts using Python scripts that improve performance testing and aid in the reduction of time to market.

  • Effectively communicate to the technical team, management, and the customer to keep all parties informed of progress, plans and potential problems

  • Collaborate with other organizations and teams to thoroughly exercise the system and verify requirements are satisfied.


  • Bachelor's degree (or equivalent) in Computer Science or a related field, and 5 to 7 years of relevant work experience

  • Development experience using Python, Ruby, or JavaScript.

  • Experience working with and testing embedded systems.

  • Knowledge of networks and IP subnets/routing is required.

  • Ability to configure network interfaces, set IP addresses and subnets.

  • Familiarity with signal analysis tools such as Wireshark.

  • Familiarity with the Linux operating system.

Preferred Qualifications:

  • Development experience using SmartBear.

  • Familiarity with SVN or GIT version control systems along with an understanding of basic Configuration Management principles.

  • Experience using the Atlassian suite.

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