🎁 Before you apply, rehearse this interview. Create your free WorkMundi account and get an Interview Training on HelpsYouSpeak — no cost, no card. I want my training →
Job Summary : We are looking for experienced Core Network professionals with strong hands-on expertise in HSS, UDR, and ePDG platforms. Candidates with HLR Titanium operational experience will be highly preferred. The role involves day-to-day operations, troubleshooting, configuration, and support of critical mobile core network elements in a high-availability environment. Key Responsibilities : Core Network Operations : Perform L2/L3 operations and maintenance for HSS, UDR, and ePDG nodes.Monitor system performance, alarms, KPIs, and health checks.Troubleshoot complex issues related to subscriber data, authentication, authorization, and mobility.Manage incident handling, problem management, and service restoration within SLA. HLR Titanium : Hands-on experience with HLR Titanium operations including :Subscriber provisioning and modifications.Alarm and fault management.Database maintenance and system health monitoring.Support upgrade, migration, and patching activities. Configuration & Support : Configure network elements and perform change management activities.Coordinate with NOC, vendors, and cross-functional teams for issue resolution.Support OSS/BSS integrations and interface troubleshooting (Diameter, MAP, SS7, IPsec). Documentation & Compliance : Prepare and maintain operational procedures, SOPs, and technical documentation.Participate in audits, DR drills, and capacity planning exercises. Required Skills & Experience : Mandatory Technical Skills : Hands-on experience with one or more :HSS (Home Subscriber Server).UDR (Unified Data Repository).ePDG (Evolved Packet Data Gateway).Strong operational exposure to HLR Titanium.Good understanding of LTE / VoLTE / 5G Core concepts.Protocol knowledge :Diameter, MAP, SS7.IP, TCP/IP, VPN, IPsec.Experience working in 24x7 operations or production support environments. Tools & Platforms : Linux/Unix system administration.Network monitoring and alarm tools.Log analysis and troubleshooting utilities. Nice to Have : Exposure to 5G core subscriber management.Experience with vendor solutions (Ericsson / Nokia / Oracle / Huawei).Scripting knowledge (Shell / Python).Prior experience in managed services or telecom operations projects. Education : BE / B.Tech / MCA or equivalent technical qualification. Soft Skills : Strong troubleshooting and analytical skills.Good communication and stakeholder coordination abilities.Ability to work independently and in a team environment.Willingness to work in shifts (if applicable). .
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.