Telecommunications Oss Engineer

Gbt Solutions, Lda; el Lloar; Presencial; EUR 60.000 - 86.000; Jornada completa

Descripción de la vacante

GBT Solutions is seeking a Telecommunications OSS Engineer to install, configure, and maintain Traffica and OSIX monitoring systems in Madrid. You will optimize Mediation Zone components, manage Kafka pipelines, and work with DeVo in Telefónica’s data ecosystem.

The role requires strong telecom protocol knowledge (NGN, IMS), experience with Linux RedHat, Windows Server, and programming in Java, Python, and Ansible. Night shifts and on-call rotations may be part of the schedule.

Formación

• Spanish-speaking is mandatory.
• Based in Madrid or surrounding areas.
• Solid experience with Traffica and OSIX (Polystar).
• Experience with Mediation Zone and telecom traffic processing.
• Knowledge of Kafka and Big Data tools (DeVo preferred).
• Strong understanding of telecom protocols and network architectures (NGN, IMS).
• Hands-on experience with Linux RedHat and Windows Server environments.
• Programming skills in Java, Python, Ansible.
• English for reading documentation and support interactions; night work availability.

Responsabilidades

• Install, configure and maintain Traffica and OSIX monitoring systems.
• Operate and troubleshoot Mediation Zone components delivering traffic to Telefónica platforms.
• Manage and optimize Kafka pipelines and DeVo workflows.
• Monitor and analyze SIP, Diameter, Radius, GTPv1, GTPv2 telecom protocols.
• Provide support for NGN and IMS networks; handle on-call rotations.

Conocimientos

Spanish language

Night shifts

English reading

Herramientas

Traffica

OSIX (Polystar)

Mediation Zone

Kafka

DeVo

Linux RedHat

Windows Server

Java

Python

Ansible

Descripción del empleo

Want to Make Waves in Tech? GBT Solutions Is the Place to Be!

About Us: GBT Solutions is a Portuguese technology company founded in 2018, part of the HFA Group established in 1995. With a focus on delivering cutting-edge solutions across various industries, we are committed to fostering a diverse and inclusive work environment and are proud to be recognized for our commitment to excellence and innovation.

Position: Telecommunications OSS Engineer (Traffica / OSIX / Mediation Zone)

Location: Madrid, Spain

Key Responsibilities

• Installation, configuration and maintenance of Traffica and OSIX (Polystar) monitoring systems.
• Operation and troubleshooting of Mediation Zone components delivering traffic from OSIX to Telefónica platforms.
• Management and optimization of Kafka pipelines and DeVo (Telefónica Big Data ecosystem).
• Monitoring and analysis of telecom protocols: SIP, Diameter, Radius, GTPv1, GTPv2 .
• Support for mobile and fixed network environments, including NGN and IMS .
• System administration tasks on Linux RedHat 8+ and Windows Server 2019+ .
• Development and automation using Java, Python and Ansible .
• Participation in on-call and night work rotations when required.

Requirements

• Spanish-speaking (mandatory).
• Based in Madrid or surrounding areas .
• Solid experience with Traffica and OSIX (Polystar) .
• Experience with Mediation Zone and telecom traffic processing.
• Knowledge of Kafka and Big Data tools (preferably DeVo ).
• Strong understanding of telecom protocols and network architectures (NGN, IMS).
• Hands-on experience with Linux RedHat and Windows Server environments.
• Programming skills in Java, Python, Ansible .
• Intermediate English for reading documentation and communicating with product support teams in Sweden.
• Availability for night work

Equal Opportunity: GBT Solutions is an equal opportunity employer and values diversity.

We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any other factor other than merit.