Lead Engineer - RAN

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

The NR NTN System Engineer contributes for RAN design, integration, and optimization of 5G NR Non-Terrestrial Network solutions across satellite payload, NTN/TN RAN, UE, and 5G Core. The role translates 3GPP Rel-17/18/19 NTN requirements into deployable system architectures, mobility procedures, and test strategies for hybrid satellite–terrestrial networks.

Key Responsibilities

• System design & specification: Define and specify advanced 4G/5G/NTN RAN feature behavior and baseband requirements aligned with 3GPP TS 36 and 38-series.
• Requirements analysis & architecture: Translate system requirements into scalable RAN architectures covering DU/CU splits and interfaces.
• Performance monitoring & optimization: Monitor RAN KPIs, perform capacity planning, and optimize parameters to maximize throughput and reliability.
• Troubleshooting & root-cause analysis: Diagnose service and system failures, identify root causes, and implement corrective configuration or procedural fixes.
• Cross-functional collaboration: Coordinate with product, engineering, operations, and field teams to deliver RAN features and resolve escalations.
• Testing, validation & trials: Develop test cases, validate new RAN features in lab environments, and support field trials for software/hardware releases.
• Documentation & standards: Produce clear design docs, operational guides, and maintenance reports compliant with internal and 3GPP standards.

Job Requirements

• B.E./M.Tech/Ph.D. in ECE/CS with 4+ years in 3GPP L1/L2 stack development for 5G NR and NB‑IoT, including NTN extensions (Rel‑17/18/19).
• Expertise in PHY/MAC/RLC/PDCP for NR and NB‑IoT (TS 38.2xx/38.3xx, 36.2xx/36.3xx) with NTN features such as large RTT, Doppler compensation, and extended HARQ timelines.
• Strong understanding of RU–L1, L1–L2, and L2–L3 interfaces and 3GPP/O‑RAN functional splits (e.g., 7.2x, F1/E1).
• Hands‑on development of real‑time baseband/embedded stacks for NR and NB‑IoT NTN waveforms, optimized for low latency, multithreading, and memory efficiency.
• Proven experience in RAN system design, integration, testing, performance tuning, and debugging of baseband software for gNB/eNB platforms.
• Strong inclination to leverage AI tools (code assistants, log analysers) to accelerate day‑to‑day RAN development and debugging.

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.