With over a decade of experience in talent recruitment, Human Profiler is a consultancy specialized in IT Outsourcing and the selection of qualified profiles. We track trends, anticipate needs, and align talent with the right challenges through agility, closeness, and a personalized approach.
We are currently looking for a Core Network SME to strengthen our team M/F.
Your Mission
Ensure stability, performance, and reliability of the 4G/5G Core network by resolving complex incidents, supporting architecture decisions, and coordinating with vendors. Drive rapid issue resolution, identify risks and optimization opportunities, and enhance operational maturity while enabling knowledge transfer and aligning Core operations with NOC performance and service quality objectives.
Your profile
· Bachelor’s degree in Telecommunications, Computer Science, Electronics, or related field.
· 8+ years of experience in Core Network (4G/5G) operations and troubleshooting.
· Strong hands-on experience with EPC/5GC components (MME, SGW, PGW, AMF, SMF, UPF, IMS).
· Proven expertise in multi-vendor environments (Huawei, Nokia preferred).
· Solid understanding of telecom protocols (GTP, Diameter, SIP, S1AP/NGAP).
· Strong analytical, debugging, and problem-solving skills in live network environments.
· Experience handling critical incidents and working in NOC environments.
· Familiarity with performance monitoring tools and KPI analysis.
· Good scripting or automation exposure (Python, Shell) is a plus.
· Strong communication and stakeholder management skills.
Key Responsibilities
· Perform advanced troubleshooting across EPC and 5GC components (MME, SGW, PGW, AMF, SMF, UPF, IMS).
· Investigate and resolve high-priority (P1/P2) incidents impacting core network services and subscriber connectivity.
· Analyze signaling flows and protocols (S1AP, NGAP, GTP, Diameter, SIP) to identify root causes of service degradation.
· Support incident triage and escalation handling, acting as L2/L3 expert within the NOC.
· Collaborate with vendors (Huawei, Nokia) for deep technical issue resolution and patch/workaround validation.
· Review and validate core network architecture, configurations, and integration points with RAN, transport, and IT domains.
· Identify performance bottlenecks, capacity constraints, and optimization opportunities.
· Contribute to Root Cause Analysis (RCA) documentation and corrective/preventive action definition.
· Ensure adherence to operational procedures and best practices in core network management.
· Support change validation and risk assessment for planned core network activities.
· Provide technical guidance to L1/L2 engineers and support knowledge transfer initiatives.
· Monitor KPIs and recommend improvements aligned with service quality targets.
€49,000 – €59,000 Gross Anual
What we offer
• Involvement in a dynamic project with a nationally and internationally recognized client.
• Competitive salary package, tailored to experience and professional profile.
• Real opportunities for growth in challenging and inspiring technology projects.
• Integration into a multidisciplinary, collaborative team with an innovative mindset.
• Close and personalized support.
• Continuous training aimed at accelerating skills and new achievements.
• Health insurance.
• Events and team-building initiatives to unwind and strengthen the team.
• Access to an exclusive benefits network (health, wellbeing, travel, gastronomy, culture, leisure, training and more).
From application to team integration
The first contact is made by phone or videoconference, during a dedicated moment to better understand the candidate’s professional background and motivations.
During the integration phase, close and consistent support is ensured to foster continuous development and smooth adaptation to the new team.