Core Network Engineer - Sofia

🔧 What You Will DoAs a Core Network Engineer, you will play a key role in ensuring the reliability and evolution of our mobile core network. Your responsibilities will include:• Configuring and ensuring the flawless operation of core network elements in GSM/UMTS/IMS• Handling interconnection processes with other fixed and mobile operators and resolving associated issues• Actively participating in the planning and execution of mobile network–related projects• Providing second-level technical support in line with defined SLAs, leading incident resolution and service normalization• Organizing and performing proactive activities to increase network and equipment reliability• Coordinating preventive actions to minimize or avoid service interruptions• Participating in the testing and rollout of new switching elements🎯 What We’re Looking For• Higher technical education in Telecommunications, Information Technologies, or Radio Electronics• Knowledge of mobile cellular networks, IMS architecture, and core telecom protocols• Solid understanding of telecom signaling and protocols — TCP/IP, MAP, SCCP, C7, SIP, Diameter• Knowledge of IP/MPLS backbone networks• Experience with Unix/Linux-based operating systems• Excellent command of English — written and spoken• Strong organizational and communication skills• Ability to work in shifts• Motivated, positive attitude and strong teamwork abilities🌟 Why Join Us?• Be part of a team that works with cutting-edge technologies• Opportunity to grow your technical expertise in a dynamic environment• Work on impactful projects that shape the mobile network of tomorrow• Supportive colleagues, collaborative culture, and plenty of room to develop📩 Ready to Apply?If this sounds like the right challenge for you, we’d love to hear from you.👉 Easy Apply and become a key part of our network engineering team!