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# Principal Telecom & Core Networks Engineer

- **Company:** Coaxial GS Systems
- **Location:** Zaragoza, Spain
- **Salary:** €70,000.0
- **Contract:** Permanent contract
- **Skills:** LTE (Telecommunication), Border Gateway Protocol, Cloud Engineering, Complex Networks, Computer Engineering, Internet Protocol, Multi-protocol Systems, Network Architecture, Network Planning and Design, Network Functions Virtualization, Routing, Network Protocols, Open Shortest Path First (OSPF), Remote Access Technology, 5G NR, System Availability, 5G Core (5GC), Network Optimization
- **Published:** June 20, 2026
- **Apply:** https://es.indeed.com/viewjob?jk=72b28cf3ab00c22f

## About the Role

Do you have experience in Scalability?, Do you have a Bachelor's degree?, * Bachelor's degree in Telecommunications Engineering, Computer Engineering, Electrical Engineering, or a related field.

 * Significant experience in telecommunications and core network engineering roles.
 * Strong knowledge of mobile core networks, IP networking, routing, switching, and transport technologies.
 * Experience with network design, deployment, and operational support in carrier-grade environments.
 * Knowledge of network protocols and technologies including LTE, 5G, MPLS, BGP, OSPF, and VPN technologies.
 * Experience working with telecommunications equipment vendors and multi-vendor environments.
 * Strong analytical, troubleshooting, and problem-solving skills.
 * Excellent written and verbal communication skills.
 * Ability to lead technical projects and influence engineering decisions.

Preferred Qualifications

 * Experience with 5G Core (5GC) architectures and cloud-native telecom platforms.
 * Familiarity with virtualization, SDN, NFV, and containerized network functions.
 * Relevant industry certifications are a plus.
 * Experience in automation and network orchestration technologies.

## Description

As a Principal Engineer, you will provide technical leadership for the design, deployment, optimization, and evolution of telecom and core network environments, ensuring high availability, performance, security, and scalability across mission-critical systems., * Lead the architecture, design, and implementation of telecom and core network solutions.

 * Support and optimize mobile and fixed network core infrastructure.
 * Develop network strategies aligned with business and technology objectives.
 * Troubleshoot complex network issues and provide advanced technical guidance.
 * Collaborate with engineering, operations, and vendor teams on network projects.
 * Evaluate emerging technologies and recommend improvements to network architecture.
 * Ensure compliance with industry standards, security requirements, and best practices.
 * Create and maintain technical documentation, procedures, and design specifications.
 * Mentor junior and mid-level engineers and contribute to technical knowledge sharing.
 * Participate in capacity planning, network performance analysis, and reliability initiatives.


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