Network & Systems Support Engineer

Posted date:  Nov 26, 2021

Barcelona, B, ES

Our Exciting Opportunity!

We are looking for a Senior Networking and Linux Systems Engineer with at least 4 years’ experience in troubleshooting IP Network nodes and Systems, mainly with relation to IP telephony and related protocols such as SIP & RTP.

The candidate we’re looking for should have large experience in understanding the nodes and elements involved in IP Networking and in using the tools to collect traces and logs and analyze them.

The position is meant to be part of a Test & Support team involved in the deployment of a new generation of Mission Critical Applications to some of Ericsson’s most advanced and demanding customers, shaping together the future critical communications to be able to better protect and care for the society.



You will

  • Have test infrastructure responsibility, and as such you will be installing and maintaining several test environments, especially for the server and backend elements.
  • Run troubleshooting sessions with the customer to collect server/node logs and network traces and help identify networking issues or platform misconfigurations. The capability to analyze the SIP logs would be very valued.
  • Actively participate in the execution of manual and automation tests
  • Automate the deployment of the test environments and implement automated tests for validating them
  • Spread the networking (and SIP/RTP) troubleshooting knowledge to others in the Design Test & Support team.
  • Give support to other units in Ericsson and to the customer to resolve issues in production or in staging environments. This may require periods of on-call duty which are compensated.



To be successful in the role you must have

  • Solid experience in IP networking and detailed knowledge in TCP, UDP protocols.
  • Ideally, you have experience solving problems about VoIP, streaming or real-time applications. Knowledge of SIP and RTP would be very valued.
  • Experience in deploying and configuring operating systems/hypervisors for virtualization such as VMware and OpenStack.
  • Good experience in scripting in Ansible. Bash and Python would be a bonus.
  • Very familiar with Wireshark and the usage of filters to obtain the relevant information.
  • Knowledge on how to decrypt TLS and SRTP traces
  • General understanding of Firewall, Switch, and Session Border Controllers and their main configuration parameters
  • Experience in High Availability and Redundancy set-ups. Knowledge in HA SIP & RTP configuration would be a bonus.
  • Motivation to incorporate Test Automation procedures for validating the installation.
  • Ability to work in a collaborative environment
  • Proactive and creative problem solver with the ability to multitask
  • Comfortable balancing trade-offs between technical, analytical and product needs
  • Capability to manage many and conflicting requests from multiple stakeholders
  • A can-do attitude and result orientation
  • Good English language skills in both writing and conversation
  • Security and hardening experience is a bonus.
  • Education: Bachelor's degree in Software Engineer or similar.


This position is open for location in Spain and Sweden 


What´s in it for you? 

Here at Ericsson, our culture is built on over a century of courageous decisions. With us, you will no longer be dreaming of what the future holds – you will be redefining it. You won’t develop for the status quo but will build what replaces it. Joining us is a way to move your career in any direction you want; with hundreds of career opportunities in locations all over the world, in a place where co-creation and collaboration are embedded into the walls. You will find yourself in a speak-up environment where empathy and humanness serve as cornerstones for how we work, and where work-life balance is a priority. Welcome to an inclusive, global company where your opportunity to make an impact is endless. 


What happens once you apply? 

To prepare yourself for next steps, please explore here:


Be where it begins

Our Culture

Welcome to an inclusive, global company where your opportunity to make an impact is endless. Share your most innovative ideas, bring your unique perspective and bring your unique perspective in a speak up environment. With us, you will no longer be dreaming of what the future holds – you will be redefining it at a company where you’re empowered to lead and perform at your very best.

Learning and Development

Being a part of our team means having the flexibility to take your career in many different directions, but it also means leveraging the supportive structure of a big organization, with clear personal and professional development opportunities. 

Benefits and Rewards

We believe that great accomplishments deserve great benefits and transparent rewards. We strive to offer competitive, unbiased, and fair rewards for all our people. We empower you to manage your own time and promote flexible working opportunities, along with family-friendly policies.

Click here to find out more about our benefits.

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