4G LTE/NB IoT Layer-2 Developer

• *Job Description – 4G LTE/NB\-IoT Layer\-2 Developer**

• *Company:** Infinity Crest Group Pvt. Ltd.

• *Position:** 4G LTE/NB\-IoT Layer\-2 Developer

• *Experience:** 5–10 Years

• *Location:** Gurgaon

About the Role

We are looking for an experienced **4G LTE/NB\-IoT Layer\-2 Developer** with strong expertise in LTE Layer\-2 protocol development. The ideal candidate will have hands\-on experience in **MAC, RLC, and PDCP** protocol stack development, strong C/C\+\+ programming skills, and a solid understanding of **3GPP standards**.

Key Skills \& Requirements

• Strong understanding of **LTE/NB\-IoT and 5G NR architecture** and protocol stack.
• Good knowledge of **3GPP Standards (Rel\-15/16/17/18\).**
• Hands\-on experience in **LTE Layer\-2 (MAC/RLC/PDCP)** development.
• Strong proficiency in **C/C\+\+ programming**.
• Good understanding of **multi\-threading and concurrency**.
• Strong debugging, troubleshooting, and analytical skills.
• Experience using **Wireshark**, protocol analysers, and log analysis tools.
• Familiarity with hardware\-based test tools such as **TM500**, **UE Simulators**, **QXDM**, and **QCAT** is an added advantage.
• Experience with **Git, Jenkins (CI/CD), and JIRA** in Agile environments.

Key Responsibilities

• Design, develop, and maintain **LTE/NB\-IoT Layer\-2 protocols (MAC, RLC, PDCP)**.
• Develop and enhance features including:
• eDRX
• PSM (Power Saving Mode)
• Coverage Enhancement
• Work on **MAC scheduling algorithms, resource allocation, and QoS handling**.
• Analyse, debug, and resolve Layer\-2 protocol issues using logs, traces, and protocol analysers.
• Collaborate with **Layer\-1 and Layer\-3 teams** for seamless feature integration.
• Ensure compliance with **3GPP specifications** for LTE/4G.
• Participate in system architecture discussions, code reviews, and performance optimization.
• Improve **throughput, latency, and overall network reliability**.
• Support field testing, interoperability testing, and customer issue resolution.
• Prepare technical documentation including design specifications and test plans.

Preferred Qualifications

• Bachelor's or Master's degree in **Electronics \& Communication Engineering, Computer Science, Telecommunications**, or a related field.
• Experience in telecom product development is highly preferred.

Job Details

• **Role:** 4G LTE/NB\-IoT Layer\-2 Developer
• **Experience:** 5–10 Years
• **Location:** Gurgaon
• **Employment Type:** Full\-Time

Apply Now

• *Infinity Crest Group Pvt. Ltd.**

• *Email:** reshma.infintycrest@outlook.com

• *Contact:** \+91 8925629669

Work Location: In person