Senior Network and Telecommunication Administrator

Hexa Group; Portugal; Teletrabalho; EUR 42 000 - 62 000; Tempo integral

Resumo da oferta

Hexa Group is seeking an experienced Network & Telecommunications Engineer to ensure the availability, performance and resilience of its networking and communications infrastructure.

In a business‑critical IT environment you will manage LAN, WAN and Wi‑Fi, oversee VoIP and call‑recording solutions, and contribute to capacity planning and architecture improvements. This role is based in Lisbon and requires fluent English with strong Cisco tech knowledge.

Qualificações

• Bachelor's degree in Computer Engineering, Telecommunications, Networks, IT or related field.
• Fluent English; Spanish a plus.
• At least 4 years of professional experience in network administration or telecommunications.
• Strong knowledge of TCP/IP, VLANs, VPNs, QoS, LAN/WAN/Wi‑Fi and Cisco networking.
• Hands-on experience with network monitoring and troubleshooting; CCNA/CCNP valued.

Responsabilidades

• Manage and optimise LAN, WAN and Wi‑Fi infrastructure with high availability and security.
• Monitor network services, troubleshoot connectivity and performance issues; analyse logs.
• Administer VoIP and call-recording solutions, including extensions and QoS.
• Contribute to network architecture improvements, capacity planning and expansion.
• Maintain network documentation and coordinate with vendors and operators for SLAs.

Conhecimentos

TCP/IP

VLANs

VPNs

QoS

VoIP

Formação académica

Bachelor's degree in Computer Engineering / Telecommunications / Networks / IT or related field

Ferramentas

Cisco CCNA/CCNP

Descrição da oferta de emprego

Role Overview

We are looking for an experienced Network & Telecommunications Engineer to ensure the availability, performance and resilience of our network and communications infrastructure.

Working within a business-critical IT environment, you will be responsible for the day-to-day operation of LAN, WAN and Wi-Fi networks while also managing voice and telecommunications services.

You will play an important role in incident prevention, infrastructure optimisation and the continuous evolution of the network architecture.

Responsibilities

• Manage and optimise LAN, WAN and Wi-Fi infrastructure, ensuring high availability, security and performance.
• Monitor network services proactively, troubleshoot connectivity and performance issues, and analyse logs and metrics to prevent recurring incidents.
• Administer VoIP and call-recording solutions, including telephone extensions, user profiles and voice/video QoS.
• Contribute to network architecture improvements, technology assessments, capacity planning and infrastructure expansion.
• Maintain network documentation and coordinate with technology vendors and telecom operators to ensure agreed service levels.

Requirements

• Bachelor's degree in Computer Engineering, Telecommunications, Networks, Information Technology or a related field.
• Fluent English, written and spoken; knowledge of Spanish would be an advantage.
• At least 4 years of professional experience in network administration, network engineering or telecommunications.
• Strong knowledge of TCP/IP, VLANs, VPNs, STP, VRRP, QoS, LAN/WAN/Wi-Fi and Cisco networking technologies.
• Hands-on experience with network monitoring and troubleshooting; knowledge of VoIP/call-recording solutions and Cisco CCNA/CCNP certification will be highly valued.