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Horizon seeks to hire : System Administrator Team Lead

Who we are 

Since its establishment in May 2005, HORIZON has swiftly become a key player in multiple IT sectors. It specializes in providing advanced support services for Business Critical Hardware and Software, minimizing system downtime and optimizing customers’ IT investments. HORIZON also offers IT product wholesaling, tailoring solutions for sectors like Mobile Telecoms, Banking, Education, Manufacturing, and Retail. Additionally, the company excels in implementing IT infrastructure projects, leveraging partnerships with leading vendors such as SUN, CISCO, AVAYA, Citrix, Microsoft, and HP. Education is a priority, with HORIZON offering technical training to IT staff, enhancing customers’ demand for quality and efficiency in the IT market.

A System Administrator Team Leader with a minimum of 5 years of experience in IT System, is responsible for overseeing a team of system administrators who manage and maintain an organization’s IT infrastructure. With a minimum of 5 years of experience They ensure the smooth operation of computer systems, networks, servers, and other technology resources. Here’s a breakdown of the definition and skills typically required for this role:

Our portofolio includes:

  • Role Overview: The System Administrator Team Leader is a managerial position within the IT department with a minimum of 5 years of experience in IT systems, responsible for leading a team of system administrators to ensure the effective operation and maintenance of IT systems.
  • Leadership and Management: They oversee the daily activities of the system administration team, provide guidance and support, and ensure that tasks are completed efficiently and effectively.
  • Technical Expertise: They possess a strong understanding of IT systems and infrastructure, allowing them to make informed decisions, troubleshoot issues, and provide technical guidance to their team.
  • Communication: Effective communication skills are essential for coordinating tasks, collaborating with other departments, and providing updates to management.
  • Problem-Solving: They have the ability to identify and resolve complex technical problems, often under pressure and within tight deadlines.
  • Team Collaboration: They foster a collaborative and supportive team environment, encouraging knowledge sharing and professional development among team members.

Duties and responsibilities

  • Creates documentation of new and existing system configuration and procedural information, and ensures system configurations documentation is complete and accurate.
  • Plans the implementation of hardware and software changes into environments and one or more additional IT production environments by performing impact analyses of system changes.
  • Evaluate new technology and techniques for suitability and incorporation into our computing infrastructure when appropriate.
  • Participate in and/or lead the design and implementation of solutions to meet customer requirements.
  • Apply patches, update, and perform general maintenance and repair on productions systems to ensure continued security, availability, reliability, and functionality.
  • Diagnose and resolve complex multi-system problems with operating systems, hardware and/or storage problems supported by this team.
  • Mentor junior staff and direct their work associated with projects they are managing.

In Summary, as a Tech Lead Systems Administrator, you will be responsible for your team activity, development and promotion. You will need expert knowledge of Operating Systems, Hardware, and Storage. This position is responsible for the creation of new solutions, the enhancement of existing solutions, the diagnosis of complex problems, and the repair of existing solutions.


  • Technical Proficiency:
  • Deep understanding of various storage technologies such as Direct Attached Storage (DAS), Network Attached Storage (NAS), and Storage Area Networks (SAN)
  • Familiarity with different types of storage arrays (RAID configurations, SSDs, HDDs) and their respective use cases
  • Experience with storage management tools and software such as EMC Isilon, NetApp ONTAP, Dell EMC Unity, or similar platforms.
  • Proficient in operating systems such as Windows, Linux, Unix.
  • Experience with virtualization technologies (VMware, Hyper-V, etc.).
  • Familiarity with Load Balancer Types and Solutions
  • Familiarity with networking concepts (TCP/IP, DNS, DHCP, etc.).
  • Knowledge of cloud platforms (AWS, Azure, GCP) and services.
  • Leadership Skills:
  • Experience leading a team of system administrators. (Not mandatory)
  • Ability to delegate tasks effectively and prioritize workload.
  • Strong decision-making skills and ability to resolve conflicts.
  • Mentorship and coaching abilities to develop team members’ skills.
  • Problem-Solving Abilities:
  • Analytical mindset to diagnose and troubleshoot technical issues.
  • Proactive approach to identify potential problems and implement preventive measures.
  • Capacity to think creatively to find innovative solutions.
  • Communication Skills:
  • Clear and concise verbal and written communication skills.
  • Ability to communicate technical concepts to non-technical stakeholders.
  • Active listening skills to understand the concerns and needs of team members and stakeholders.
  • Project Management:
  • Experience in planning and executing IT projects, such as system upgrades or migrations.
  • Proficiency in project management methodologies and tools.
  • Ability to set goals, monitor progress, and adjust plans as needed.
  • Security Awareness:
  • Understanding cybersecurity principles and best practices.
  • Experience implementing security measures to protect IT infrastructure and data.
  • Continuous Learning:
  • Willingness to stay updated with the latest technologies and trends in the IT industry.
  • Commitment to ongoing professional development through certifications, training programs, and industry events.
  • Certifications ( Not required but are advantage)
  • VMware Certified Professional (VCP)
  • Cisco Certified Network Association (CCNA)
  • CompTIA Storage+
  • Red Hat Certified Architect (RHCA)
  • AWS Certified Solutions Architect