Linux Administrator, NOC

Role Overview

The Network Operations Centre (NOC) Team is responsible for providing 24x7x365 monitoring and operational support of our Managed Detection and Response service delivery infrastructure and our internal corporate IT systems. NOC Analysts triage, investigate, resolve or escalate a wide range of server and network issues supporting our SOC, Customer Experience and Systems teams globally.

The desired candidate is detail oriented with good Linux administration skills, has a solid foundation in networking and demonstrates excellence in high volume/ high-pressure situations.


  • Provide continuous monitoring of all services, alerts and critical systems and respond appropriately to ensure continuous and uninterrupted availability of resources

  • Perform investigations into reported host and interface issues

  • Respond to queries from Security Operations and other client facing teams

  • Solve issues as efficiently and as accurately as possible in a team-oriented professional culture

  • Schedule and perform server upgrades including post upgrade validation checks

  • Updating assigned NOC Tickets providing timely and detailed information

Qualifications & Experience

  • Bachelor’s Level degree in a related technical field or equivalent experience, certifications, and training

  • Proficiency with Ubuntu Linux Operating Systems with the ability to perform general administrative tasks using the command line interface (CLI)

  • Knowledge of networking concepts, protocols and troubleshooting tools

  • Strong problem solving and troubleshooting skills

  • Comfortable with working in a fast-paced environment with shifting priorities

  • Good communications skills (verbal and written)

  • Flexibility to work in a 24x7 shift based environment.

Bonus Points

  • Experience with one or more IT/Network monitoring platforms (SolarWinds, Nagios, Icinga etc)

  • Experience with writing or updating technical documentation

  • Previous experience with Knowledge Base and trouble ticketing systems (Confluence, Jira, ServiceNow)

  • Scripting experience in one or more languages (Bash, Python)

  • Relevant Industry Certifications, eg CompTIA Linux+, Network+

Why a Career with eSentire?

About us: eSentire® is the largest pure-play Managed Detection and Response (MDR) service provider, keeping organizations safe from constantly evolving cyber-attacks that technology alone cannot prevent. Its 24x7 Security Operations Center (SOC), staffed by elite security analysts, hunts, investigates, and responds in real-time to known and unknown threats before they become business disrupting events. Protecting more than $6 trillion in corporate assets, eSentire absorbs the complexity of cybersecurity, delivering enterprise-grade protection and the ability to comply with growing regulatory requirements.

eSentire has been recognized in Deloitte’s Technology Fast 50™  and Fast 500™, Canada’s Top Small and Medium Employers, and Gartner’s Market Guide for Managed Detection and Response. For more information, visit and follow @eSentire.

Our Culture: At eSentire we work in a collaborative and innovative work environment. We work with brilliant and passionate people who strive and encourage others to do their best. eSentire’s idea-rich environment welcomes creative and sometimes unconventional perspectives!

Growth Opportunities: At eSentire you will have the opportunity to grow and make an impact from your work. We encourage innovation in all who become a part of our team. With growing operations internationally, there is lots of lateral and upward advancement opportunities for rewarding and developing careers with eSentire. We’re strong believers in continuing education and provide the resources that you need to continue learning.

Employee Perks: Every day we provide free breakfast and refreshments, flexible hours, half day off birthdays, concierge services, RRSP matching program, subsidies for continuing education and health and wellness and attractive compensation and benefit plans. We make it our obligation to the team here to stay current with compensation trends in the tech field!

We thank all applicants in advance for applying. Only individuals selected for interviews will be contacted.

eSentire is committed to creating a fair work environment that is aligned with the Accessibility for Ontarians with Disabilities Act (AODA). We guarantee equal treatment and provide opportunities regardless of race, creed, color, religion, national origin, ancestry, marital status, affectional or sexual orientation, gender identity or expression, disability, nationality, sex, status as a protected veteran or any other legally protected grounds and will not discriminate on these basis. If you have any accessibility requirements during the recruitment process, please reach out to our HR team at and any accommodation needs will be addressed upon request.