Senior IT Systems Administrator

People are our most valuable asset.

People are our most valuable asset.

CMG is seeking an experienced Senior IT Systems Administrator to join our global Information Technology team. This is a full-time, permanent position. The ideal candidate will have a strong foundation in all aspects of Information Technology with previous experience leading and managing IT projects, have a strong customer service focus and a desire to advance the technology and security positions within the organization.

Key Responsibilities

• Work closely with the CMG global IT manager to provide high level IT oversight and guidance to the local IT team.
• Act as a site leader for IT operations and strategic projects in Eastern Hemisphere.
• Act as both a player and a coach, leading the hands-on implementation of IT projects and providing coaching and mentorship to a distributed IT team.
• Collaboratively and independently lead infrastructure, application and business system projects, integrations, and migrations.
• Support the global CMG IT team to ensure the proper functioning of networks, servers, and other IT infrastructure.
• Provide technical support and assistance to CMG employees end-users via Microsoft Teams, email, phone or in person.
• Troubleshoot and resolve hardware and software issues, including desktops, laptops, printers, and peripherals.
• Install, configure, and maintain computer systems and software applications, policies, and configurations to maintain a standardized and secure computing environment.
• Assist in the implementation and maintenance of security measures, including antivirus software, operating system updates, software updates and network equipment ensuring security and optimal performance.
• Assist in the implementation and configuration of complex high performance computing infrastructure at both CMG and client locations.
• Review existing IT infrastructure, identify, and provide proposals for areas of improvement.
• Document and maintain accurate records of IT support requests, solutions provided, and relevant information in the IT ticketing and change management systems.
• Assist with onboarding and offboarding tasks related to staffing activities.
• Provide employee training and support for software applications and tools.
• Assist in the management and maintenance of IT inventory and assets.
• Assist CMG Customer Support and Sales teams with technical support for CMG clients as it relates to customer IT infrastructure, servers, networking, and cloud infrastructure.

The above statements are intended only to describe the general nature of the job and should not be construed as an all-inclusive list of position responsibilities.

Knowledge, Skills & Experience


Bachelors degree or diploma in Computer Science, Information Technology, Information Management or related field.

Knowledge & Skills:

  • Strong knowledge of Microsoft 365, Azure AD (Entra), SharePoint and Teams administration
  • Linux proficiency, including strong scripting and networking experience (RHEL, Ubuntu)
  • Proficiency with VMware ESX, vSphere and other virtualized environments
  • Work on diagnosing and debugging HPC hardware and software issues
  • Demonstrated experience with cluster compute scheduler software (e.g. SLURM, PBS, Spectrum LSF)
  • Effective troubleshooting and problem-solving capabilities
  • Be customer focused, learn about the business to help bring value to our customers
  • Team focused with a positive attitude, must be self-motivated, and have very good time management and communication skills both in written and verbal English.


  • Minimum of 8 – 10 years of experience in IT operations management
  • Experience in leading IT projects while remaining hands-on
  • Experience with Windows Server, Active Directory administration and Power Shell
  • Experience with HPC environments and MPI (Windows, Linux)
  • Experience with managing cloud infrastructures such as AWS and Azure.


Apply Now

If you have the necessary qualifications, and are interested in a challenging career with us, please forward your resume in confidence to

No phone calls please. We thank all applicants for their interest in advance. Only those chosen for interviews will be contacted.

CMG’s total rewards program includes:

  • A competitive salary
  • A performance-based bonus program
  • Learning and development opportunities
  • Generous medical and dental benefits
  • 20 days of vacation per year plus flex days
  • 12 days of public holidays
  • Quarterly wellness days
  • A hybrid work model, with a minimum of three days per week in office and flexibility to work two days per week from home.