Senior 5G NR L2 MAC/Scheduler Engineer

Mavenir; Bengaluru; On-site; INR 2,500,000 - 4,200,000; Full time

Job summary

Mavenir in Bengaluru, India, seeks a Senior 5G NR L2 MAC/Scheduler Engineer to contribute to the design, development, integration, and maintenance of Layer-2 MAC/Scheduler functionalities in 5G NR DU software.

The role requires close collaboration with L1, L2, RLC and system teams. Strong ownership, problem-solving, code review, and mentoring of junior engineers while delivering production‑ready software are expected. Experience with NTN and MAC-PHY interfaces is highly valued.

Qualifications

• Experience with MAC scheduling components including DL/UL scheduling, HARQ handling, RACH procedures, resource allocation and SFN/slot-based operations.
• Deep understanding of 3GPP specifications and product requirements.
• Strong hands-on C/C++ development for embedded/telecom systems.
• Knowledge of software design, debugging, performance analysis, memory management, multithreading and concurrency.

Responsibilities

• Design, develop, integrate and maintain Layer-2 MAC/Scheduler functionalities in 5G NR DU software.
• Collaborate with L1, L2, RLC and system teams throughout the development lifecycle.
• Mentor junior engineers while delivering production-ready software.

Skills

MAC scheduling

C/C++

Embedded/telecom

Multithreading

NTN knowledge

3GPP specs

FAPI interfaces

Tools

FAPI interfaces

Job description

Mavenir is building the future of networks and pioneering advanced technology, focusing on the vision of a single, software-based automated network that runs on any cloud. As the industry's only end-to-end, cloud-native network software provider, Mavenir is transforming the way the world connects, accelerating software network transformation for 250+ Communications Service Providers in over 120 countries, which serve more than 50% of the world’s subscribers.

Role Summary

We are looking for a Senior 5G NR L2 MAC/Scheduler Engineerto contribute to the design, development, integration, and maintenance of Layer-2 MAC/Scheduler functionalities in 5G NR DU software.

The role requires close collaboration with L1, L2, RLC, and system teams throughout the development lifecycle. Strong ownership, problem-solving skills, code review experience, and the ability to mentor junior engineers while delivering high-quality, production-ready software are expected.

Key Skills

• Experience working on key MAC scheduling components, including DL/UL scheduling, HARQ handling, RACH procedures, resource allocation, and SFN/slot-based operations,
• Deep understanding of 3GPP specifications and product requirements.
• Candidates should have strong hands-on experience in C/C++ development for embedded or telecom systems.
• Good knowledge of software design, debugging, performance analysis, memory management, multithreading, and concurrency handling.
• Experience in developing, enhancing, and maintaining production-quality software is essential.
• Experience with Non-Terrestrial Networks (NTN), including MAC/Scheduler development and optimization for high-RTT scenarios, is highly preferred.
• Experience includes familiarity with MAC-PHY interactions (FAPI or similar interfaces), PDSCH/PUSCH procedures, scheduler feature development, KPI analysis, and performance optimization of 5G NR systems.
• Strong ownership, problem-solving skills, code review experience, and the ability to mentor junior engineers while delivering high-quality, production-ready software are expected.

Accessibility

Mavenir is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities. If you require any assistance, please state in your application or contact your recruiter.

Mavenir is an Equal Employment Opportunity (EEO) employer and welcomes qualified applicants from around the world, regardless of their ethnicity, gender, religion, nationality, age, disability, or other legally protected status.