Role Overview We are hiring an L3 SMSC Support Engineer with deep, practical expertise across the full JINNY/Enghouse messaging suite. The role involves advanced troubleshooting, platform engineering, routing optimization, and direct vendor‑level issue handling for a multi‑node SMSC environment.
Key Responsibilities Handle all L3 escalations for SMSC, MPUs, SIU, JMR/JFE/JRE, JSR, WAP, MGW, VSMS, MMSC. Perform advanced debugging, log analysis, core dumps, protocol traces (SMPP, SIGTRAN, MAP). Manage routing tables, filtering rules, SMPP configs, IN charging integration, and international SMS flows. Lead upgrades, patches, DR drills, capacity planning, and performance tuning. Work directly with Enghouse/JINNY TAC for complex issues and bug fixes. Support integrations with IN, VAS, enterprise SMPP clients, and international hubs.
Required Skills Mandatory hands‑on experience with JINNY/Enghouse SMSC (5+ years). Strong knowledge of SMPP 3.4, SS7/SIGTRAN (M3UA/SCCP/MAP), routing, filtering, TPS optimization. Linux (RHEL/Cent OS), tcpdump/wireshark, scripting for automation. Experience in HA/clustered telecom environments.
Qualifications Bachelor’s degree in Telecom/Computer Engineering. Proven L3‑level troubleshooting and platform ownership.