At ZTE España, we are looking to hire a skilled Telecom Engineer with strong expertise in Mobile Core and/or Value Added Services (VAS) to join our Post-Sales team. This role offers the opportunity to work in dynamic customer environments, supporting both project delivery and operational activities.
Purpose of the Role
Join our Post-Sales team and provide advanced technical support in mobile network environments, participating in new deployments, expansions of existing projects, incident handling, and ongoing service operations, including participation in an on-call duty roster when required.
Main Responsibilities
* Support and execute deployment projects for new solutions and platforms.
* Participate in expansions, upgrades, and evolutions of existing customer projects.
* Provide post-sales technical support for production platforms and services.
* Analyze, troubleshoot, and resolve technical incidents.
* Escalate and follow up complex technical issues until full resolution.
* Coordinate with internal teams, customers, vendors, and other technical stakeholders.
* Prepare and maintain technical documentation, procedures, and reports.
* Participate in an on-call / standby support scheme, depending on service needs.
* Provide remote support and, when required, support planned interventions or emergency activities.
Requirements
Proven experience in mobile telecommunications environments, particularly in:
* deployment
* integration
* post-sales support
* operations and maintenance
* Experience working with telecom operators and/or vendors is a strong advantage.
* Fluent Spanish and English, with the ability to participate in technical discussions, write documentation, and coordinate internationally.
Technical Skills
We are looking for candidates with strong experience in one or more of the following areas:
Value Added Services (VAS) – SMSC / IN
* Experience with SMSC and Intelligent Network (IN) platforms
* Knowledge of SMS architecture, routing, and interworking
* Experience in integration, configuration, and operational support
* Understanding of protocols such as SS7/MAP, SMPP, Diameter
Mobile Core (2G/3G/4G/5G) – Packet Core & IMS (VoLTE / VoWiFi)
* Strong knowledge of Packet Core and IMS architectures
* Experience with VoLTE and VoWiFi services
* Experience in deployment, integration, and support of core network nodes
* Understanding of signaling protocols such as SIP and Diameter
* End-to-end troubleshooting across mobile core environments
Skills
* Strong analytical and problem-solving skills
* Service-oriented mindset and ability to work in critical environments
* Technical autonomy and ability to prioritize effectively
* Strong communication skills with customers and cross-functional teams
* Ability to work under pressure in incident-driven environments
* Proactive attitude, commitment, and results orientation
If you are looking to grow your career in a fast-paced and international telecom environment, working on cutting-edge mobile technologies, ZTE España would be glad to hear from you.
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