It Network Administrator (2Nd Line Support) (Sandton Onsite)
Posted on 2025-03-17
Employer | Datafin |
---|---|
Salary | 0 |
Category | It Computer |
Location | Gauteng / Johannesburg |
Job Summary
Johannesburg – Gauteng – South Africa
- Provide advanced 2nd Line IT support for software, hardware and network issues escalated from 1st Line Support.
- Diagnose and resolve complex IT problems, ensuring system reliability.
- Act as a key IT contact for internal teams, providing expert advice and solutions.
- Monitor network and IT infrastructure to proactively detect and resolve issues.
- Lead PC setup, software configurations and pre-deployment testing.
- Conduct network troubleshooting and optimisation to ensure secure, stable connectivity.
- Provide remote deployment support for software and hardware installations at customer sites.
- Manage and configure Active Directory, Group Policies, DNS, DHCP and VPNs.
- Optimise network performance and diagnose connectivity issues (e.g. slow speeds, packet loss).
- Maintain and troubleshoot LAN/WAN, VLANs, Firewalls, Routers and Switches.
- Manage firewalls (Cisco, Fortinet, MikroTik) and VPN configurations.
- Implement cybersecurity measures to protect network integrity and prevent threats.
- Utilise network monitoring tools (e.g. Zabbix, PRTG, SolarWinds) for real-time performance tracking.
- Assist in data protection, user access controls and IT security best practices.
- Develop and maintain detailed as-built documentation for network and system configurations.
- Document troubleshooting steps to improve the knowledge base and incident response efficiency.
- Continuously enhance IT operations by analysing past incidents and recommending improvements.
- Microsoft Certified: Azure Administrator Associate (MCSA, MCSE). Or (AWS Certified).
- Cisco Certified Network Associate (CCNA) or higher (CCNP). Or (Juniper Network Certifications).
- CompTIA Network+ (Networking Fundamentals).
- ITIL Foundation (IT Service Management & Incident Response).
- Zabbix Certified Specialist (For monitoring system administration). Or (Similar).
- 5 Years of experience in IT Support, Network Administration, or System Administration.
- Proven experience in troubleshooting escalated IT issues (2nd Line Support).
- Strong knowledge of network configurations, firewall management and security protocols.
- Hands-on experience with Active Directory (AD), Group Policies and Microsoft 365 Administration.
- Experience in troubleshooting Windows 10/11, Linux (Ubuntu/CentOS) and macOS systems.
- Experience in remote IT support tools (RDP, TeamViewer, AnyDesk, PowerShell).
- Proficient in configuring and managing routers, switches and firewalls.
- Hands-on experience in LAN/WAN troubleshooting, VLAN setup and VPN administration.
- Strong knowledge of Wi-Fi networks, subnetting and IP addressing.
- Experience in server administration (Windows Server, Linux).
- Basic scripting knowledge (PowerShell, Bash, or Python) for IT automation.
- Understanding of Cybersecurity principles (Access Control, MFA, Security Audits).
- Knowledge of SIEM tools (Splunk, ELK, Graylog) and endpoint security solutions.
- Proficient in firewall management and intrusion detection systems.
- Familiarity with patch management and OS updates (WSUS, SCCM, Intune).
- Experience with cloud environments (Azure, AWS, Google Cloud).
- Managing virtualisation (VMware, Hyper-V, Proxmox).
- Supporting remote users via VPNs, cloud applications and remote desktop tools.
- Problem-Solving & Troubleshooting Ability to diagnose and resolve complex IT issues quickly.
- Communication & Collaboration Can explain technical concepts to non-technical users.
- Initiative-Taking Attitude Proactively identifies, troubleshoots and resolves IT issues.
- Teamwork & Knowledge Sharing Works well in cross-functional teams and can mentor junior staff.
- Adaptability Keeps up with modern technologies, evolving IT needs and business changes.
- Documentation & Reporting Ability to write clear technical documentation and reports.
It Network Administrator (2Nd Line Support) (Sandton Onsite) position available in Gauteng, Johannesburg. This job position was posted by Datafin. The job has been posted as a premium ad on 2025-03-17 at 16:09:41 in the It Computer category
Click Go Apply to apply online!
You might also like these jobs in the same area.
Apply directly for this position. Please read all instructions carefully.
We do not process job applications; we simply aggregate and display job listings.
More related positions
Gauteng: It And Telecommunications Technician posted by Comtech Networking Solutions
This is a full-time on-site role for an IT and Telecommunications Technician at Comtech Networking Solutions CC located in City of Johannesburg. The technician will be responsible for troubleshooting, maintaining, and installing various IT, telecommunicati
View Job
It And Telecommunications Technician
Cape Town City Centre: Network Administrator
Minimum Requirements: Grade 12 A, N and Cisco Certified Support Technician (CCNT) 2 years systems admin experience Experience with Active Directory, VM Ware, LAN, WAN Hands on experience with Cisco Routing, Sophos Firewalls, and Switches. Duties and Respo
View Job
Network Administrator
East London: Network Engineer, Fixed Term Contract, Zwelitsha
Applicants are required to meet the following criteria: Degree in Computer Science, IT or related 5 years experience in network engineering or administration Hands on experience with Cisco, Juniper, Fortinet, and other network hardware Strong knowledge of
View Job
Network Engineer, Fixed Term Contract, Zwelitsha
Pretoria: Specialist: Network Security And Cryptography
Key Performance Areas Cryptography Develop encryption algorithms by designing complex algorithms that convert data into a format that can be only understood by those who possess a unique decryption key, ensuring the confidentiality of the information. Netw
View Job
Specialist
Cape Town City Centre: Network Engineer – Ip Design & Multicast | 85K
Look no further than our client The ideal candidate will have: - Bachelor`s Degree in IT or related field As a key defence solution provider to over 50 countries worldwide, our client has positioned itself as an ideal employer that values a strong work eth
View Job
Network Engineer – Ip Design & Multicast | 85K
Cape Town City Centre: Technical Network Engineer ((Isp & Data Centre) Anywhere In Sa)
Were hiring a Technical Manager to shape our network, prevent downtime, and mentor a growing team. If you excel at near-perfect uptime, network design, and leading engineers, contact us. What Youll Do Optimize monitoring (Zabbix/ LibreQOS) and automate rou
View Job
Technical Network Engineer ((Isp & Data Centre) Anywhere In Sa)
Cape Town City Centre: Senior Network Engineer (Isp Core)
Qualifications: Matric qualification Tertiary qualification (Computer Science or IT related) Certifications CCNA, CCNP, JNCIA Valid Drivers License and own vehicle Experience: Must have professional OME certification, working knowledge and experience of 5
View Job
Senior Network Engineer (Isp Core)
Cape Town City Centre: Service Delivery Manager Â?? Network Infrastructure
Key Responsibilities: Manage service delivery for the network infrastructure environment, ensuring high availability and performance. Oversee vendor relationships and ensure SLA compliance with outsourced service providers. Facilitate weekly/monthly operat
View Job
Service Delivery Manager Â?? Network Infrastructure
Cape Town City Centre: Network Optimization Engineer
We are seeking a highly motivated and skilled 5G Network Optimization Engineer to join our team. In this role, you will be responsible for optimizing the performance and efficiency of our 5G network, ensuring a seamless and high-quality user experience. 4G
View Job
Network Optimization Engineer
Johannesburg: Senior Network Security (Fortinet) Engineer – (Sandton)
Hiring Now: Senior IT Network Security Engineer Are you a highly motivated security specialist with hands-on Fortinet experience looking for your next big challenge? Our client is building a dynamic, energetic team and needs YOU to help secure cutting-ed
View Job
Senior Network Security (Fortinet) Engineer – (Sandton)
Cape Town City Centre: Network Engineer
A defence company specialising in UAV`s in Cape Town is seeking a network engineer. We are looking for someone with experience designing a network, NOT the maintenance, implementation, or management thereof. Some companies might call this role a Network Ar
View Job
Network Engineer
Port Elizabeth: Senior Network Security Engineer
Our client is looking for an experienced Senior Network Engineer to join their team. Purpose of the Position: The primary responsibility of this role is to assist in the implementation, maintenance, and support of the Company’s network infrastructure. Addi
View Job
Senior Network Security Engineer
Uitenhage: Raw Material Network Development Manager
The role involves acting as a bridge between the Group Raw Material Purchasing and African raw material and automotive associations, as well as supporting public affairs in matters related to local governments. The position also includes managing regional
View Job
Raw Material Network Development Manager
Cape Town City Centre: Area Sales Manager Ct – Ict Network Hardware
Key Performance Areas include the following: Team Leadership & Development: Lead and guide sales team to achieve targets through coaching, performance reviews, and recognition. Recruit, train, and mentor staff to enhance sales skills and meet KPIs. Create
View Job
Area Sales Manager Ct – Ict Network Hardware
Cape Town City Centre: 2Nd Line Network Engineer
Qualifications, Experience and Skills Required: Matric Grade 12 (Compulsory) MTCNA CCNA N qualification and 3 years experience Valid drivers license and own vehicle Basic Linux command line skills Good practical networking skills: IPv4 understanding, TCP
View Job
2Nd Line Network Engineer
Johannesburg: Senior Network Security Engineer
The Senior Network Security Engineer will be responsible for designing, implementing, and supporting secure network solutions for enterprise-level environments. This includes handling network design, architecture, and security configurations to safeguard o
View Job
Senior Network Security Engineer
Port Elizabeth: Senior Network Security Engineer posted by Performit Personnel
Our client is looking for an experienced Senior Network Engineer to join their team.Purpose of the Position:The primary responsibility of this role is to assist in the implementation, maintenance, and support of the Companys network infrastructure. Additio
View Job
Senior Network Security Engineer
Port Elizabeth: Senior Network Engineer posted by Top Vitae
The primary responsibility of this role is to assist in the implementation, maintenance, and support of the company`s network infrastructure. Additional duties include supporting the global Help Desk and regional Network Administrators from a second-level
View Job
Senior Network Engineer
South Africa: Solutions Architect (Network + Security) posted by Employ Africa Group
Job OverviewThe Solutions Architect (Network + Security) is responsible for designing, implementing, and managing the network and security architecture of the organization. This role involves ensuring the robustness, scalability, and security of the IT inf
View Job
Solutions Architect (Network + Security)
South Africa: It Pre-Sales – It Solutions, Networking Solutions, It Security Solutions – Mozambique posted by Employ Africa Group
IT Pre-Sales Technician - Maputo, MozambiqueOur client specializes in providing cutting-edge Information Technology solutions to businesses and organizations, with a strong focus on Infrastructure, Communications, and Security technologies in hybrid Cloud
View Job
It Pre-Sales – It Solutions, Networking Solutions, It Security Solutions – Mozambique
East London: Network Engineer, Fixed Term Contract, Zwelitsha posted by Sheldon Recruitment and Selection
Applicants are required to meet the following criteria: Degree in Computer Science, IT or related 5+ years experience in network engineering or administration Hands on experience with Cisco, Juniper, Fortinet, and other network hardware Strong knowledge of
View Job
Network Engineer, Fixed Term Contract, Zwelitsha
East London: Network Engineer, Fixed Term Contract, Zwelitsha posted by Sheldon Recruitment and Selection
Applicants are required to meet the following criteria: Degree in Computer Science, IT or related 5+ years experience in network engineering or administration Hands on experience with Cisco, Juniper, Fortinet, and other network hardware Strong knowledge of
View Job
Network Engineer, Fixed Term Contract, Zwelitsha
Centurion: Network Specialist / Analyst posted by Nambiti Technologies
Minimum qualifications: NQF Level 6 in an Information Technology related qualification. Any relevant certifications. Relevant 5 - 7 years experience in ICT Networking with specialties in the system and network management environment. Key responsibilities:
View Job
Network Specialist / Analyst
Pretoria: Specialist: Network Security And Cryptography posted by Nambiti Technologies
Key Performance Areas Cryptography Develop encryption algorithms by designing complex algorithms that convert data into a format that can be only understood by those who possess a unique decryption key, ensuring the confidentiality of the information. Netw
View Job
Specialist
Pretoria: Specialist: Network Security And Cryptography posted by Nambiti Technologies
Key Performance Areas Cryptography Develop encryption algorithms by designing complex algorithms that convert data into a format that can be only understood by those who possess a unique decryption key, ensuring the confidentiality of the information. Netw
View Job
Specialist