Layer 3 RAN Developer

2 weeks ago

Bengaluru, India Altiostar, A Rakuten Symphony Company Full time

About Altiostar:


Our unique LTE eNodeB and 5G gNB is designed to improve quality of experience, enhance spectral efficiency, and significantly reduce Total Cost of Ownership (TCO). Our product is designed with leading edge hardware & software technologies. We have a team of passionate professionals who understand mobile network operator's requirements & vision. Our objective is to provide mobile network operators with the equipment required to deploy and expand their 4G and 5G networks quickly and efficiently in the most feature rich and cost effective way.


Purpose of role: Software Development for Layer 3 4G/5G CU.


Key Responsibilities :

  • Designing and developing 4G/5G innovative products and features on a virtualized architecture, focusing on 5G-CU.
  • Debugging and fixing customer issues.
  • Working closely with System Architect team and other RD teams.


Key Skills :

  • Good Knowledge and Experience in developing 5G-CU systems: CUCP, CUUP, NGAP, XnAP, E1AP, F1AP, RRC, PDCP.
  • Good knowledge and Experience in developing 4G systems (Layer 3): RRC, PDCP, S1AP, X2AP, SON, PDCP.
  • Well knowledgeable in 3GPP specifications.
  • Expertise in C/C++ programming.
  • Working knowledge on 4G/5G Layer 3 Procedures like Attach, Handover, Re-Establishment, Carrier Aggregation and ENDC is an added advantage.
  • Good Programming and debugging skills on Linux.
  • Good understanding of IPC, Process, Threads, Multithreading Concepts.
  • Experience with Kubernetes, Pods, Dockers is an added advantage.
  • Good Team Player and good communication skills.
  • Must be able to work independently with minimum supervision.
  • Must be a team player and work closely with others in the team.
  • Must be highly responsible and self-motivated to get the job done.
  • Must be diligent in producing documentation and facilitate knowledge
  • Sharing with other members of staff.


Qualifications & Experience:


  • Bachelors/Masters in ECE or Computer Science Engineering.
  • Overall 5-10 years of experience in Telecommunication industry.
  • Comfort using programming languages and relational databases
  • Strong debugging and troubleshooting skills.

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