07/05/2026 updated
100 % available
Core Network & R&D Engineer | IMS | EPC | VoLTE | Data Core | RF | Automation
Lecco, Italy
Worldwide
MSc. Telecommunication EngineeringAbout me
Telecom engineer, 9+ years in mobile core networks — both voice (IMS/VoLTE/SBC) and data (EPC: SGW/PGW/MME). Also hands-on with RF measurements, hardware commissioning, and Python automation. Based in Italy, open to remote/hybrid/on-site B2B projects in Switzerland.
4G (Telecommunication)Virtual Private Networks (VPN)RoutingTCP/IPTelecom InfrastructureWebRTC5G (Telecommunication)Testing (Hardware)2G (Telecommunication)Evolved Packet Core (EPC)Cisco
Data Core (EPC)
Configuration, integration and day-to-day troubleshooting of SGW, PGW and MME nodes on the Capgemini platform, both in lab and live environments. Analysis of call flows and fault isolation on 4G control and data plane interfaces including S1-U, S5/S8, S11 and Diameter (Gx/Gy).
Voice Core & IMS
End-to-end VoLTE implementation including P-CSCF, S-CSCF, I-CSCF, TAS, SBC and MGCF. Integration of Capgemini IMS/EPC with Cisco CUBE and SBC with full SIP trace verification, handover continuity via MME/EPC integration and Lawful Interception compliance.
RF Measurement & Automation
RF cable loss measurements using Anritsu MS2080A and Rohde & Schwarz signal generator via substitution method across 950-1950 MHz. Python scripting for instrument control, document generation and batch processing, including automated label generation using PyMuPDF.
Hardware & Factory Acceptance Testing
End-to-end unit preparation and Factory Acceptance Testing for backpack and V-Unit portable base stations covering 2G, 3G and 4G simultaneously. Assembly and validation of the full hardware chain including LNA, filter/splitter/combiner, TREX RF front-end boards and Octasic baseband DSP boards.
Linux & Infrastructure
Ubuntu setup from scratch including static IP configuration, netplan, Intel Wi-Fi BE201 firmware, hostname and routing. Configuration of WireGuard VPN for remote lab access and management of SSH sessions across distributed lab infrastructure via Multi Putty Manager.
Protocols
Hands-on experience with SIP, Diameter (Gx/Gy/Cx/Rx/S6a), GTP-C/U, SCTP, S1AP, TCP/IP, INAP, WebRTC and MAP across live and lab network environments.
5G & R&D
Setup of 5G Core lab including AMF, SMF and UPF, and execution of network behaviour simulations for R&D validation. Writing and maintenance of HLD, LLD, FAT reports and operational documentation across all project phases.
Open Source & Tools
Hands-on configuration and integration of Kamailio and Asterisk PBX. Regular use of tools including IRIS, Wireshark, U2020, ALM, sngrep, tcpdump, PuTTY and Multi Putty Manager.
Vendor Experience
Practical experience working with equipment and platforms from Nokia, Ericsson, Huawei, Capgemini, Cisco (CUBE), Anritsu and Rohde & Schwarz.
Configuration, integration and day-to-day troubleshooting of SGW, PGW and MME nodes on the Capgemini platform, both in lab and live environments. Analysis of call flows and fault isolation on 4G control and data plane interfaces including S1-U, S5/S8, S11 and Diameter (Gx/Gy).
Voice Core & IMS
End-to-end VoLTE implementation including P-CSCF, S-CSCF, I-CSCF, TAS, SBC and MGCF. Integration of Capgemini IMS/EPC with Cisco CUBE and SBC with full SIP trace verification, handover continuity via MME/EPC integration and Lawful Interception compliance.
RF Measurement & Automation
RF cable loss measurements using Anritsu MS2080A and Rohde & Schwarz signal generator via substitution method across 950-1950 MHz. Python scripting for instrument control, document generation and batch processing, including automated label generation using PyMuPDF.
Hardware & Factory Acceptance Testing
End-to-end unit preparation and Factory Acceptance Testing for backpack and V-Unit portable base stations covering 2G, 3G and 4G simultaneously. Assembly and validation of the full hardware chain including LNA, filter/splitter/combiner, TREX RF front-end boards and Octasic baseband DSP boards.
Linux & Infrastructure
Ubuntu setup from scratch including static IP configuration, netplan, Intel Wi-Fi BE201 firmware, hostname and routing. Configuration of WireGuard VPN for remote lab access and management of SSH sessions across distributed lab infrastructure via Multi Putty Manager.
Protocols
Hands-on experience with SIP, Diameter (Gx/Gy/Cx/Rx/S6a), GTP-C/U, SCTP, S1AP, TCP/IP, INAP, WebRTC and MAP across live and lab network environments.
5G & R&D
Setup of 5G Core lab including AMF, SMF and UPF, and execution of network behaviour simulations for R&D validation. Writing and maintenance of HLD, LLD, FAT reports and operational documentation across all project phases.
Open Source & Tools
Hands-on configuration and integration of Kamailio and Asterisk PBX. Regular use of tools including IRIS, Wireshark, U2020, ALM, sngrep, tcpdump, PuTTY and Multi Putty Manager.
Vendor Experience
Practical experience working with equipment and platforms from Nokia, Ericsson, Huawei, Capgemini, Cisco (CUBE), Anritsu and Rohde & Schwarz.
Experience
Professional experience5 - 10 years
Freelancer since2022
Languages
GermanBasic knowledgeEnglishFluentItalianGood
Project history
Working remotely from Italy for a Swiss company. Responsibilities include configuration, integration and troubleshooting of SGW, PGW and MME nodes on the Capgemini platform, VoLTE end-to-end integration with Cisco CUBE and SBC, hardware preparation and FAT for portable base stations, Linux infrastructure setup, WireGuard VPN configuration, RF cable loss measurements, Python automation scripting, and 5G Core lab setup including AMF, SMF and UPF.
Consultant placed at Vodafone Italy through Altran (later Capgemini Engineering). Day-to-day monitoring and L2/L3 support on the live VoLTE/IMS network using U2020 and IRIS. Handled incidents, problems and change management on IMS nodes, led root cause analysis and call flow fault isolation across SIP, Diameter and SCTP. Integrated new nodes and features in test and live environments working with Nokia and Huawei teams. Made SBC configuration changes and designed CSCF HLD, security architecture and test plans for IMS integration projects.
Placed at Vodafone Italy. Learned IMS architecture, protocols and call flow analysis hands-on in both lab and live environments. Helped with VoLTE test execution, documented results in ALM, and used IRIS, Wireshark and FileZilla for trace work.