Main responsibilities and skills:- Maintenance and Support of BICS MVNE - M2M/IoT platform (https://bics.com/services/iot/) HLR/HSS; STP/DRA; GGSN/PGW/PCRF/CBS; OTA; API Gateway; SMSC, USSDc, DPI- Reactive technical support to IoT and mobile roaming services customers (MVNx) via ticketing system and multiple alternative ways of communication- Troubleshooting complex customer's technical issues and handling of crisis situations - Work with standard operator infrastructure (STP, DRA, GGSN/PGW, SGGN/SGW, SMSHUB, SMS Firewall)- Deep knowledge in network protocols and packet core infrastructure (2G/3G and 4G), service (VAS) infrastructures, GGSN, SGSN, BSS infrastructures for provisioning and charging (online/offline charging, mediation), advanced packet core features (PCRF, CBS, DPI) - Solid experience and understanding of IT infrastructures (distributed, high available real-time infrastructures) and network protocols on different layers (OSI layer model – IP, TCP, UDP, SCTP, HTTP, SMPP, GTP, SS7, Diameter) - Solid experience with various API integrations (API facing customer and core network APIs)- Maintenance of proactive monitoring systems, design and implementation of advanced network KPIs and automated notification algorythms- Integration of fully automated uptime monitoring and customer incident notification tool- Creation of advanced interactive troubleshooting and maintenance documentation and articles to increase quality of support provided by engineers- Close cooperation with Product Managers and Platform Designers - Supplier/Vendor Management (SLA, penalties, escalations)- Passion for IoT and Mobile Services
Listed skills include Routing, Core Network, Gsm, Ss7, and 22 others.