What does it mean to work with network administration, and which freelancers can help?

By Carsten Bjerregaard, Addcapacity.com

Network administration involves designing, operating, monitoring and developing a company’s network infrastructure to ensure that users, systems and digital services function reliably and securely. The discipline plays a critical role in performance, cybersecurity, cloud connectivity and daily operations across offices, data centres and hybrid workplaces. Specialists typically work with routing, switching, firewall management, network monitoring and access control in systems such as Cisco, Fortinet, Palo Alto Networks, Aruba Networks, VMware and Microsoft Azure. Roles such as network administrator, network engineer, infrastructure architect, IT operations consultant and security specialist often collaborate closely with IT operations, cloud teams and cybersecurity functions in larger organisations.

1. What is network administration?

Network administration covers the technical and operational management of a company’s network environment. This includes both physical and virtual infrastructure such as LAN, WAN, Wi-Fi, VPN, cloud connectivity and security architecture. In practice, the discipline focuses on ensuring stable communication between systems, users, applications and external services. The area has evolved significantly in recent years as cloud adoption, hybrid work and increased security requirements have made networks more complex and business-critical. Many organisations therefore work more actively with segmentation, automation and monitoring to reduce downtime and security risks. Specialists often play an important role during large migrations, infrastructure modernisation projects or business-critical environments with strict uptime and compliance requirements.

Core responsibilities

• Network infrastructure operations
• Firewall and access control
• Monitoring and troubleshooting
• Cloud and VPN connectivity
• Segmentation and network security

A common scenario is a company with hybrid employees and cloud-based systems where the network specialist optimises VPN architecture, Wi-Fi performance and firewall rules to reduce latency and ensure stable access across locations.

2. How does network administration fit into a modern organisation, and which KPIs are typically used?

Network administration is closely integrated with IT operations, cybersecurity, cloud strategy and the digital user experience. In modern organisations, the network is no longer simply a technical foundation but a central part of the overall digital infrastructure. As a result, many companies work with KPIs directly linked to uptime, security, performance and user experience. These often include latency, packet loss, response time, uptime, mean time to repair (MTTR) and the number of security incidents. Compliance and documentation also play a growing role, particularly in regulated industries. Network administration further impacts cloud adoption, remote work and platform integrations. The work therefore often requires close coordination between infrastructure teams, security specialists and business stakeholders.

Typical performance metrics

• Uptime and stability
• Response time and latency
• Number of security incidents
• Mean time to repair (MTTR)
• Global network performance

In larger international organisations, there is often a shift towards proactive monitoring where network teams identify bottlenecks and security issues before end users experience the consequences.

3. Which tasks can consultants help with within this area?

Freelance specialists in network administration are often engaged during periods of high complexity, shortages of specialised expertise or projects with tight deadlines. Consultants may contribute both strategically and operationally depending on the organisation’s maturity and setup. On the strategic side, they often support network design, security architecture, cloud connectivity and infrastructure modernisation. Operationally, they typically work with implementation, configuration, troubleshooting, performance optimisation and documentation. Many organisations also rely on external specialists during migrations to SD-WAN, Microsoft Azure or hybrid environments. In practice, experience with specific technologies and environments is often more valuable than theoretical knowledge or certifications alone.

Common consulting assignments

• Network architecture design
• Firewall configuration and security
• SD-WAN migration projects
• Troubleshooting and optimisation
• Monitoring and documentation

One example could be an organisation consolidating multiple offices following an acquisition. In this case, the network consultant supports network integration, segmentation and secure access without disrupting daily operations.

4. Which tools are typically used by specialists in this field?

Network specialists typically work in environments involving multiple integrated platforms and vendors. The choice of tools often depends on the organisation’s size, security requirements and existing infrastructure. Cisco and Fortinet remain dominant in many enterprise environments, while cloud-based network management continues to grow through platforms such as Microsoft Azure and Amazon Web Services. Monitoring tools are also widely used to improve visibility into performance and security. Automation and centralised management are prioritised more highly than before, particularly in complex environments with many locations.

Widely used platforms

• Cisco and Meraki
• Fortinet and Palo Alto
• Aruba Networks
• SolarWinds and PRTG
• Azure and AWS

A typical example is organisations with many offices where cloud-managed networking platforms reduce the need for local operations and enable faster centralised troubleshooting.

5. Who typically leads network administration, and what background do they have?

Leadership responsibility for network administration often sits with an infrastructure manager, network architect or senior network engineer, depending on the organisation’s size. In larger companies, the discipline is usually part of a broader infrastructure or platform function, while smaller organisations often place responsibility within IT operations or under a technical manager. Many senior profiles have backgrounds as network administrators or operations consultants combined with experience in security, cloud infrastructure or enterprise environments. Certifications such as CCNA, CCNP and Fortinet NSE are still widely recognised, although practical experience is often valued more highly in complex operational environments.

Typical lead roles

• Network architect
• Infrastructure manager
• Senior network engineer

In practice, senior specialists often act as the link between IT operations, security teams and external vendors during major infrastructure changes.

6. Who is typically involved in daily execution and operational delivery, and what are their roles?

The daily operation of network environments often involves multiple specialists with different areas of responsibility. Network administrators usually handle operations, monitoring and troubleshooting, while infrastructure engineers work more project-oriented with implementations and changes. Security specialists are frequently involved in firewall policies, segmentation and compliance-related tasks. In larger organisations, the network team also collaborates closely with cloud engineers, service desks and external vendors. The work requires a high degree of coordination, especially when changes affect critical systems or global users.

Key collaboration roles

• Network administrators
• Security specialists
• Cloud engineers

One example is major ERP upgrades where the network team works closely with operations, security and application teams to maintain stable performance throughout the implementation.

7. Which specialisations exist within network administration?

Network administration has become increasingly specialised as complexity has grown within cloud infrastructure, cybersecurity and distributed environments. Many specialists therefore focus on disciplines such as data centre networking, cloud networking, SD-WAN, network security or enterprise Wi-Fi. Others primarily work with automation and infrastructure as code, where scripting and central management play a larger role than traditional manual operations. The areas of specialisation often depend on industry requirements and the organisation’s technological maturity.

Typical specialisations

• Cloud networking
• Network security
• SD-WAN and automation

In global organisations, it is increasingly common to see dedicated specialists focused on cloud connectivity and zero trust networking as traditional perimeter-based network models are gradually phased out.

How to quickly connect with strong candidates for your needs

Freelance specialists in network administration can be a flexible and efficient addition to both operations teams and project organisations. Many companies engage external consultants to quickly access specialised expertise without lengthy recruitment processes. This often creates closer collaboration and lower overall costs compared to traditional agency setups.

Addcapacity.com helps clarify the specific need, including the role, responsibilities, technologies and level of experience required, and then identifies three relevant candidates that match both the professional requirements and the project scope. The dialogue is non-binding and can usually be initiated quickly.