Radisys NR gNB DU (junior Dev)

Acldigital; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Acldigital in Bengaluru, India seeks a senior 5G RAN Engineer to lead Layer 2 design and architecture. You will ensure alignment with 3GPP Rel-15/16/17/18 standards, own end-to-end feature delivery, and drive performance tuning for scalability and reliability.

The role requires deep C/C++ experience on Linux, strong debugging skills, and familiarity with protocol analyzers and hardware test tools. Collaboration with PHY/RRC/Core and customers is essential.

Qualifications

• Has strong understanding of 5G NR architecture and protocol stack. Good knowledge of 3GPP standards (Rel‑15/16/17/18).
• Proficiency in C/C++ programming. Knowledge of multi‑threading and concurrency. Strong debugging and problem‑solving skills.
• Experience with tools like Wireshark, protocol analysers, log analysis tools.
• Familiarity with hardware‑based test tools such as TM500 or UE simulators and protocol analysers like QXDM, QCAT is a plus.
• Proficiency in GIT, Jenkins (CI/CD), and JIRA for agile development.

Responsibilities

• Lead the design and architecture of 5G RAN Layer 2 components with a focus on scalability, performance, and maintainability.
• Ensure compliance with 3GPP standards (Rel‑15/16/17/18) and contribute to technical discussions.
• Own end‑to‑end feature delivery: design, development, integration, and validation.
• Lead performance tuning for throughput, latency, reliability, and scalability.
• Drive debugging and root cause analysis for complex field and interoperability issues.
• Collaborate with PHY, RRC, Core Network, and O‑RAN teams.
• Mentor junior engineers and conduct design/code reviews.
• Contribute to technical roadmap & innovation.
• Interface with customers, product teams, and external partners.

Skills

5G NR architecture

Layer 2 / MAC Scheduler

3GPP Rel-15/16/17/18

C/C++

Linux-based development

Multi-threading

Debugging & problem solving

Wireshark & protocol analysers

Jenkins / CI-CD

Git & JIRA

Tools

Wireshark

QXDM

QCAT

TM500

UE simulators

Git

Jenkins

Job description

Key Skills

• Strong expertise in 5G NR architecture, specifically the DU/CU split and functional splits (e.g., Option7.2x).
• Hands‑on experience in Leadingthe Layer 2 (MAC Scheduler) protocol design & development.
• Extensive knowledge of 3GPP Release 15/16/17 (and awareness of Rel‑18) for 5G NR.
• Proficiency in C/C++ and development within Linux‑based systems.

Requirements

• Has strong understanding of 5G NR architecture and protocol stack. Good knowledge of 3GPP standards (Rel‑15/16/17/18).
• Proficiency in C/C++ programming. Knowledge of multi‑threading and concurrency. Strong debugging and problem‑solving skills.
• Experience with tools like Wireshark, protocol analysers, log analysis tools.
• Familiarity with hardware‑based test tools such as TM500 or UE simulators and protocol analysers like QXDM, QCAT is a plus.
• Proficiency in GIT, Jenkins (CI/CD), and JIRA for agile development.

Responsibilities

• Lead the design and architecture of 5G RAN Layer 2 components with a focus on scalability, performance, and maintainability.
• Ensure compliance with 3GPP standards (Rel‑15/16/17/18) and contribute to technical discussions.
• Own end‑to‑end feature delivery: design, development, integration, and validation.
• Lead performance tuning for throughput, latency, reliability, and scalability.
• Drive debugging and root cause analysis for complex field and interoperability issues.
• Collaborate with PHY, RRC, Core Network, and O‑RAN teams.
• Mentor junior engineers and conduct design/code reviews.
• Contribute to technical roadmap & innovation.
• Interface with customers, product teams, and external partners.