Métier ingénieur système et réseau

Systems and network engineer

Systems and network engineers ensure the operation of IT infrastructures by designing, deploying and securing company networks.
Systems and network engineer

Role of the system and network engineer

Systems and network engineers design, install and maintain computer systems and networks. They ensure that servers, network equipment and associated software remain operational. In the event of a malfunction, they diagnose the source of the technical problem and intervene quickly. Working with the IT teams, they participate in the continuous improvement of infrastructures to enhance system performance and security.

This professional works directly with the company's users. They implement IT protection solutions, and troubleshoot users when there is a network problem.

Tasks of the system and network engineer

  • He/she designs and implements network architectures to meet the company's operational requirements.
  • He/she supervises the installation and monitoring of new IT equipment, and checks its performance and security.
  • He/she secures network information systems by implementing protection measures.
  • He/she carries out preventive and corrective maintenance on IT equipment.
  • It analyses technical incidents and makes corrections/improvements.
  • It advises teams and management on future hardware and software solutions.

Key contacts

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Chief Technical Officer (CTO)

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Database Administrator (DBA)

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System and network engineer skills

Technical skills

  • Expertise in LAN, WAN and MAN networks
  • Expertise in IT and telecommunications equipment (routers, switches, hubs)
  • Expertise in operating systems (Windows, Linux, Unix and MacOS)
  • Skills in virtualisation software (VMWare, Hyper-V) and backup solutions (Veeam Backup)
  • Knowledge of databases such as Oracle and SQL Server and their integration into information systems.
  • Technical English

Soft skills

The systems and networks engineer must be rigorous in monitoring infrastructures and guaranteeing their operation. They must be available to intervene in the event of a problem, even outside working hours. They have good interpersonal skills to work with the company's various departments and meet users' needs.

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Education and training

To work as a systems and network engineer, you need to have completed 5 years of higher education. Candidates may follow :

  • A course at an engineering school specialising in IT, networks or telecommunications. Renowned establishments such as the Institut Polytechnique de Paris, Centrale Supélec and ECE Paris offer qualifying courses.
  • A university course via professional masters in computer science with specialisms in networks or systems architecture. For example, UPMC Sorbonne University offers a masters specialising in networks, while Paris-Saclay University offers a specialisation in network systems architecture.

Possible career paths for systems and network engineers

After a few years' experience, systems and network engineers can move up to become systems and network architects, IT managers or directors.

IT Security Engineer VS Network and Security Engineer: What are the differences?

They share responsibilities for protecting IT systems, but their roles are distinguished by their specialisations and areas of intervention.

Security engineers focus on securing information systems. Their role is to identify, assess and mitigate data and system security risks. They manage firewalls, intrusion detection, protection against malicious software and application security. They ensure that the company's data remains protected against cyber attacks.

Security and network engineers specialise in securing network infrastructures. In addition to general security skills, they focus specifically on protecting the company's communication networks, whether internal or external. They ensure that the network is secure against intrusions, and configure and manage devices such as VPNs (Virtual Private Networks), firewalls and intrusion detection systems (IDS/IPS).

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