linux system administrator for Home Gateway Devices

Claranet; Lisboa; On-site; EUR 45,000 - 65,000; Full time

Benefits offered by this job

Дополнительное обучение

Конкурентная оплата труда

Карьерный рост

Job summary

Claranet ищет специалиста по Linux для углубленной диагностики инцидентов, влияющих на Linux‑основанные устройства домашнего шлюза (HGW), включая фиксированные сети доступа, Wi‑Fi подключение и IP‑сервисы. Вы будете анализировать окружения Linux на низком уровне: команды оболочки, управление процессами, использование памяти и сетевые диагностики.

Кроме того, вы расследуете проблемы с Wi‑Fi, воспроизводите их в лабораторных условиях и создаёте автоматизированные скрипты для тестирования, сбора

Qualifications

• Опыт работы с Linux — отладки, настройка и устранение неполадок
• Понимание концепций TCP/IP и связанных сервисов (DNS, DHCP, маршрутизация)
• Опыт использования инструментов диагностики (Wireshark, tcpdump)
• Развитые аналитические и проблемы‑решающие навыки
• Отличные навыки коммуникации и документирования
• Желателен опыт Wi‑Fi технологий, OpenWRT и embedded Linux

Responsibilities

• Perform advanced troubleshooting of incidents affecting Linux-based Home Gateway Devices (HGWs), including fixed access networks, Wi‑Fi connectivity, and IP services
• Analyze Linux environments at a low level, including shell operations, process management, memory usage, network diagnostics, and configuration, to identify root causes
• Investigate Wi‑Fi issues such as coverage, interference, channel utilization, band steering, and performance degradation using metrics, packet captures, and diagnostic tools
• Reproduce customer-reported issues in laboratory environments and characterize them using logs, network captures, and performance metrics
• Develop and maintain automation scripts to streamline testing, evidence collection, log analysis, and operational activities
• Create and maintain technical documentation covering processes, analyses, workarounds, and recommendations to support knowledge sharing and traceability across teams

Skills

Linux

Networking

Wireshark

tcpdump

Scripting

Коммуникационные навыки

Tools

Wireshark

tcpdump

Job description

Описание:

Claranet helps organisations unlock the potential of the digital world to innovate and thrive securely. It brings together talented people and powerful technologies to address customer challenges.

Задачи:

• Perform advanced troubleshooting of incidents affecting Linux-based Home Gateway Devices (HGWs), including fixed access networks, Wi‑Fi connectivity, and IP services
• Analyze Linux environments at a low level, including shell operations, process management, memory usage, network diagnostics, and configuration, to identify root causes
• Investigate Wi‑Fi issues such as coverage, interference, channel utilization, band steering, and performance degradation using metrics, packet captures, and diagnostic tools
• Reproduce customer-reported issues in laboratory environments and characterize them using logs, network captures, and performance metrics
• Develop and maintain automation scripts to streamline testing, evidence collection, log analysis, and operational activities
• Create and maintain technical documentation covering processes, analyses, workarounds, and recommendations to support knowledge sharing and traceability across teams

Требования:

• Strong hands‑on experience with Linux systems, including debugging, system configuration, troubleshooting, and scripting
• Understand TCP/IP networking concepts and related services such as DNS, DHCP, routing, and network troubleshooting
• Have experience with network diagnostic and analysis tools such as Wireshark, tcpdump, or similar
• Have strong analytical and problem‑solving skills, including the ability to perform root cause analysis in complex technical environments
• Have excellent communication and documentation skills
• Будет плюсом: Knowledge of Wi‑Fi technologies, including 2.4 GHz and 5 GHz networks and IEEE 802.11 standards, experience with fixed access technologies such as GPON and DOCSIS, scripting and programming skills, particularly in Python and Bash, familiarity with OpenWRT and embedded Linux environments, experience in telecommunications, networking, or broadband service environments, a proactive mindset, attention to detail, and a passion for troubleshooting and continuous improvement

Условия:

• Additional training
• Salary package in line with the responsibilities of the role
• Professional growth and career development opportunities