Opportunity : Open Source 4G/5G vRAN

  • Last Update:2023-01-02
  • Version:001
  • Language:en


  • Title : Open Source 4G/5G vRAN
  • Location : Lille (accommodation possible) or remote
  • Type : full-time
  • Fonction : Developer
  • Durée : Traineeship (3-6 months) / alternance / employment
  • Référence : Offer-2023-vRAN.Developer


Nexedi, through its joint subsidiary Rapid.Space with Amarisoft, produces end-to-end 4G/5G telecom equipment in France: radio heads, base stations (BBUs), backhaul, network management system (OSS/BSS), etc. We are already working with two Tier 1 operators for commercial deployment. We are also producing a base station (Open Radio System) that enables the deployment of a private 4G/5G "plug-and-play" network in factories, hospitals, ships, etc. Our long-term goal is to liberate the telecom equipment industry, like what already exists in the cloud (open compute project, ONIE, SlapOS, etc.).

We are looking for developers interested in any of the following topics:

  • AI-based radio planning to optimize radio head power, limit interference and optimize traffic between multiple sites
  • extension of the babel routing protocol to implement mobility, also called handover, without a centralized network core and without a central point of failure
  • extension of the babel routing protocol used by the backhaul network to take into account nodes and links that do not transmit or transmit packets poorly
  • automation of service deployment on each station and preventive maintenance of deployed services to optimize service continuity


  • contribute to the constitution of an integrated offer of telecom infrastructure based exclusively on free hardware and free software (except the Amarisoft stack)
  • improve our open source software stack (https://stack.nexedi.com/)
  • automate all aspects of network deployment, configuration and management


  • fullstack and devops development (Python, buildout)
  • experience in 4G/5G telecommunications (network, routing, base stations, configuration)
  • learn latency minimization routing with babel
  • contribute to complex open source solutions
  • learn the multiple facets of software testing
  • learn the Amarisoft vRAN stack
  • design radio hardware



About Nexedi

Nexedi is one of  the leading European open source and free software publishers in Europe with a portfolio of open source solutions of more than 15 million lines of code. Our customized software solutions run at Airbus, Stellantis, Sanef and other enterprises around the world. We participate in industry-leading research projects, try to build Rapid.Space, a fully open cloud provider and lobby for Europe's independence with regards to cloud and communication technologies as well as the use of Free Software. 


We would be happy to hear from you, so drop us a line (along with your CV) at jobs(at)nexedi.com and we will get in touch with you.

Nexedi SA
147 Rue de Ballon
59110 La Madeleine

Phone+33 629 02 44 25