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# NOC Technician

- **Company:** Telefónica S.A.
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Microsoft Word, Microsoft Excel, Wavelength-Division Multiplexing, Mesh Networking, Network Monitoring, Microsoft PowerPoint, Power BI, Computer Network Operations, Genesys
- **Published:** July 30, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ 7-10 years of hands-on experience as a NOC Technician specializing in transport network technologies.
 + Strong working knowledge of SDH, DWDM, and advanced optical/photonic mesh networks.
 + Familiarity with Huawei and Nokia equipment and network management systems.
 + Proven experience supporting large telecom operators, with deep understanding of Telefónica's support and operation protocols.
 + Technical proficiency in OTN, GMPLS, optical protections (1+1, MSP, SNCP), and high-capacity customer circuits.
 + Ability to analyze and resolve complex incidents efficiently under pressure.
Tools & Technologies

 + Incident management platforms: GRI, GEISER, MAR/Genesys
 + Network Management Systems: Huawei U2000, Nokia NFM/T
 + Reporting & Analysis: Excel, PowerPoint, Word, Power BI
 + Communication & Vendor Coordination Tools: GRI, internal email systems
Languages

 + Spanish - fluent (mandatory)
 + English - intermediate or higher (preferred, not required)

## Description

We are looking for a highly skilled Senior NOC Technician with a strong background in transport networks to join our Network Operations Center (NOC) team. In this critical role, you'll ensure the integrity, performance, and stability of cutting-edge SDH, DWDM, and photonic mesh networks across a large-scale telecom infrastructure.
You will be part of a high-performing team providing Tier 1 technical support, incident resolution, and network quality assurance, primarily for operations defined by Telefónica. If you thrive in fast-paced, high-responsibility environments and have deep knowledge of optical transport systems, we want to hear from you., + Perform Level 1 incident management: diagnose, troubleshoot, and resolve complex issues in SDH and DWDM transport networks.

 + Support circuit activation and monitoring across various technologies and customer services (E1, STM, GE, 100/400GE, etc.).
 + Manage customer complaints and provide technical support to on-site field teams.
 + Conduct network quality analysis, identify performance issues, and propose corrective measures.
 + Coordinate shift activities, ensuring smooth handovers and 24/7 service continuity.
 + Escalate issues to vendors and internal teams using GRI, Telefónica mail, and other tools.


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