Sentinel
Mobile Core Engineer
1 month ago
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Important information
Contract type:
Freelance / Contract
Work mode:
Onsite
Published on:
12 September 2026
What they need
Mobile Core Solution Engineer | Signalling | eSIM
We’re looking for an experienced Mobile Core Solution Engineer to join a global connectivity team focused on IoT and mobile network solutions.
We’re particularly interested in engineers with strong expertise across:
- Mobile Core: 2G, 3G, 4G/LTE & 5G Core
- Signalling: Diameter, SS7, MAP, GTP, INAP & HTTP
- SIM/eSIM: eUICC, SM-DP+, SM-SR, SIM applets & OTA
- Call-flow analysis: troubleshooting complex signalling, interoperability and integration issues
- Core network: HSS/HLR, PCRF, P-GW/GGSN, AMF, SMF & UPF
You’ll work on complex global connectivity challenges, designing solutions, analysing call flows and driving technical delivery across mobile core, IoT and eSIM ecosystems.
If Mobile Core, signalling and eSIM are your area of expertise, I’d love to hear from you.
#MobileCore #Signalling #eSIM #5G #LTE #Telecoms #IoT #Telecommunications #Hiring
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