Want to Make Waves in Tech? GBT Solutions Is the Place to Be
Por favor, asegúrese de leer completamente el resumen y los requisitos de esta ocasión de empleo que se detallan a continuación.
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.
Occasional on-site interventions at Telefónica's data center.
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

📌 Telecommunications OSS Engineer (Vigo)
🏢 GBT Solutions
📍 Vigo