LTE Test Engineer at Truminds Software Systems · Hyderabad · 1 - 3 years · ₹4L - ₹10L / yr · Profitable · Posted 26 Jul 2024
ROLES & RESPONSIBILITIES:
- Candidate will be responsible for test execution of LTE protocol and performance, analyze and report software defects, interwork with development teams in identifying a potential fix and retest fixes.
- Should be having good analysis skills with a sound understanding of LTE Concepts.
- Responsibilities include test execution- with failure root cause analysis System acquisition, LTE Protocol testing.
- The candidate will also support troubleshooting and reproducing customer failures for debugging.
- Must have good call processing knowledge as per 3GPP specifications for GSM/GPRS/EDGE/WCDMA/LTE capable phones.
- Candidate must be reliable regular with good work ethics.
REQUIRED SKILLS/ABILITIES:
- LTE with 5G/4G Experience
- Understanding of LTE/5G/4G end-to-end flows
- Working experience on UEs and/or RAN side.
- Good understanding of RRC, RRM MAC & NAS protocols on the Air interface
- Tools and Analytical Skills
- Log Analysis Experience
- Working experience with end-to-end setups
- Scripting experience on Keysight/Anite/Anritsu/R&S tools.
EDUCATION & EXPERIENCE:
- B.Tech/M.Tech in Electronics and Communication
- 3 to 8 years plus experience in the 4G/5G domain
- Excellent communication and strong Analytical skills required

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We are actively looking for experienced C++ Developers with strong hands-on experience in 4G/5G Core Network development, particularly Control Plane and Network Programming.
⚡ Immediate Joiners are highly preferred.
🔹 Key Requirements:
• Strong programming skills in C/C++
• Strong knowledge of Data Structures, Algorithms & OOPS
• Hands-on experience in Socket Programming – TCP/UDP, Non-blocking I/O
• Experience with 3GPP message handling, parsing and protocol processing
• Strong hands-on experience in 4G/5G Core Control Plane
• Experience with MME, SGW, PGW, HSS, PCRF, AMF, SMF, UPF, UDM, AUSF, PCF, NRF
• Strong knowledge of Diameter, SIP, GTP-C, GTP-U, PFCP, NAS/NGAP, S1AP, HTTP/2
• Understanding of N1, N2, N3, N4, N6, S1-MME, S1-U, S5/S8 interfaces
• Good understanding of 4G/5G Core Control Plane procedures and call flows
• Strong networking fundamentals: TCP/IP, UDP, Routing, ARP, VLAN, Subnets, L2/L3
• Hands-on Linux development using GCC, GDB, Make and debugging tools
• Experience in low-level debugging, packet flows and performance optimization
🔹 Responsibilities:
• Develop software modules for 4G/5G Core Network systems
• Implement and optimize Control Plane protocol logic
• Work on end-to-end Control Plane call flows
• Debug low-level issues in Control Plane packet flows and system behaviour
• Collaborate with QA/DevOps for network component integration
📌 Priority: Candidates who can join immediately / within a short notice period.
Please ensure the profiles have hands-on 4G/5G Core Networking + Control Plane experience, along with relevant C/C++ development experience






