Tier 1 Support Engineer (IT Technology / Core Network)

VIAVI Solutions

Madrid, ESonsitePosted Jul 30, 2026
Posting intelligenceActively listed

Skills

kubernetesdocker

About the role

Summary: VIAVI (NASDAQ: VIAV) has a 100+ year history of technical innovations that have evolved to keep pace and address our customers’ most pressing business issues. We make equipment, software, and systems that help to plan, deploy, certify, monitor, and optimize all kinds of networks - like those for mobile phones, service providers, large businesses and data centers. VIAVI is also a leader in high performance thin film optical coatings and engineered diffusers, providing light management solutions to anti-counterfeiting, consumer electronics, automotive, defense and instrumentation markets.

We are the people behind the products that help keep the world connected – at home, school, work, at play, and everywhere in between. VIAVI employees are fierce about supporting customer success and we welcome people who bring their best every day to the company - to question, to collaborate and to push for solutions that will delight our customers.

This is a customer-facing role aimed at performing customer support activities for our Nitro Core system. The primary function is for system product Tier 1 support. The main responsibility is to enhance customer experience by quick and effective response to our customers’ issues or questions with the Nitro Core system.

The Tier 1 Support Engineer will be required to be able to respond to customer support requests within contracted support times of 8x5 or 24x7 (for additional pay). This will include participating in an after-hours standby rotation to cover customer support requests 24x7. Tier 1 support engineers will also be required to open support cases in the ticket logging system, update the support cases with progress on a regular basis and talk through the solution with the customer. Lead Operational Reviews as contracted.

Duties & Responsibilities:

The Tier 1 Support Engineer will have excellent communication skills to work with customers and provide answers to technical questions, diagnose system problems and manage escalations.

Tier 1 Support Engineers will also be required to accurately document the customer issue and steps to resolution and act as a customer advocate until the issue is resolved.

The Tier 1 Support Engineer must be able to multi-task as some cases may be defects or may remain open for extended periods of time.

Key Measures:

Customer satisfaction (internal and external).

Attain and continuously improve customer satisfaction and Net promoter survey results.

Work closely with engineering to attain TL9000 and BMS metrics.

Attain customer service contracts, SLAs.

Organizational and process effectiveness.

Pre-Requisites / Skills / Experience Requirements:

Fluent in English and Spanish (written and verbal).

Minimum 5 years of experience in a Technical Support, Network Support, Telecommunications, or IT Operations environment.

Minimum 5 years of experience troubleshooting complex software, network, cloud, or telecom solutions in a customer-facing environment.

Working knowledge of Linux operating systems and command-line troubleshooting.

Understanding of networking fundamentals including TCP/IP, DNS, HTTP/HTTPS, routing, and firewalls.

Experience analyzing logs, alarms, traces, and system performance data to identify root causes and drive issue resolution.

Bachelor's degree in Telecommunications, Computer Science, Information Technology, Engineering, or a related technical discipline.

Preferred Qualifications/Skills/Experience:

Experience supporting telecom network software or telecom test and monitoring solutions.

Knowledge of Mobile Network technologies and protocols including 3G, 4G/LTE, and 5G.

Experience with telecom protocols such as S1AP, GTP, Diameter, SCTP, and HTTP/2.

Experience with packet analysis tools such as Wireshark.

Experience with Linux system administration and Shell scripting.

Experience with databases and SQL queries.

Experience with virtualization and containerized environments (VMware, Docker, Kubernetes).

Experience using ticketing and case management systems.

Personal skills/attributes:

Process discipline.

Organized communication.

If you have what it takes to push boundaries and seize opportunities, apply to join our team today.

#LI-Hybrid

Questions about this role

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Compensation for Support Engineer roles in Spain varies widely by seniority, employer size, and remote vs onsite arrangement. Check the salary range on this listing when published, or browse our Support Engineer hub for Spain medians across recent openings.

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