Ericsson

Senior SW Developer

Ericsson  •  Madrid, ES (Onsite)  •  2 hours ago
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Job Description

Grow with us

About this opportunity

We are looking for Senior Software developers in the area of 5G Core Network, with passion for building new functionalities related with 5G mobile data processing (especially, in the programming of open platform, real time and high-availability systems).

If you are a curious professional, willing to learn and share knowledge, and an excellent team-player, continue reading!

What you will do

You will work in a cross-functional team in the development of new functionalities for 5G User Plane,

Participate the full life-span of the software feature: from early phases (analyzing the solution and setting requirements), development phase (coding and testing), and final deployment on live network (supporting customer teams).

Be part of a multinational organization, with teams distributed in Spain, Sweden, and China.

You will bring

  • A bachelor’s, master’s, or doctorate degree in computer science, telecommunication engineering or related field
  • Willing to or being already proficient in programming of open-platform, real-time and high-available systems, as well as scripting.
  • Programming in C, and at least one scripting language (i.e. python, shell/bash) on UNIX/Linux is required.
  • Knowledge in TCP/IP Networking, and evolution transport protocols (like QUIC), data networks and IP-based applications (HTTP, HTTPS, ...), Routing and Signaling.
  • Capacity to investigate and debug complex issues. Including performance tuning experience, troubleshooting, core dump analysis, etc.
  • Cloud native software stacks and execution environments. Containers (i.e. Dockers).
  • Knowledge in operating system architectures and capacity to model scalable designs and solutions.
  • Good written and spoken English, confident working in international environments.

Competences of extra value:

  • Advanced Linux user and network administrator
  • Experience in configuration of network equipment
  • Knowledge in Mobile network architecture 4G/5G. Interfaces, protocols, functions
  • C++ and/or Golang
  • Knowledge in Link-layer protocols: ARP, ND, BFD (Routing and L2-L4 protocols)
Ericsson

About Ericsson

The future of mobile isn’t on the horizon, it’s happening now. At Ericsson, we’re building the foundation for an open network ecosystem where industries, developers, and enterprises thrive.

The convergence of 5G, AI, cloud, and network APIs isn’t just a technological shift; it’s a transformation that is redefining industries and enhancing everyday life. Open, programmable networks are enabling real-time innovation and unlocking new business models across the globe.

Imagine a world where developers can dynamically access network capabilities on demand, where enterprises don’t just use connectivity but shape it. This isn’t a distant vision, it’s the ecosystem we’re creating today.

Collaboration fuels everything we do. By working across industries, we’re designing a future where connectivity isn’t just seamless. It’s intelligent, programmable, and transformative.

The shift is happening. Are you part of it?

Industry
Telecommunications
Company Size
10,000+ employees
Headquarters
Kista, SE
Year Founded
1876
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