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Virtualization Software Engineer

Country:  United States
State / Province:  North Carolina
City:  Morrisville
Job Type:  Regular
Job ID:  36659

Job Description



In this role, you will evolve the Keysight MobileStack product line to work in a virtualized environment, as our customers implement their 5G core network 3GPP standards. The Keysight Network Visibility products provide the ability for our customers to tap, aggregate, filter, sample, as well as perform many other functions on their network traffic for monitoring and analysis.


Keysight’s network packet broker provides multiple applications, such as:


  • MobileStack – monitoring of customer traffic from a mobile user/session perspective (e.g.GTP, SIP/RTP)
  • AppStack – monitoring of customer traffic from an application perspective (i.e. L4-L7)
  • SecureStack – providing secure encryption/decryption for TLS1.3 (Active SSL)
  • TradeVision – stock trading monitoring and analysis tool
  • PacketStack – standard packet broker features such as aggregation, deduplication, masking, etc.
  • NetStack – port tagging and VLAN stripping


Our MobileStack products track mobile users and sessions, sending the associated control and user plane data to specific network monitoring tools (i.e. probes) for analysis. In addition, they load balance across probes and provide sampling, filtering and VIP whitelisting functionalities. This allows our customers to manage their probe bandwidth by looking at a subset of the overall network traffic, in addition to being able to troubleshoot specific quality of service issues. As network traffic continues to increase each year, our customers need solutions to monitor their network traffic more efficiently and cost effectively.


This position is an opportunity to contribute to our product and team, as we continue to evolve our MobileStack product to meet the demands of 5G core network and network virtualization.  




  • Design, prototype and iterate on creative concepts to meet our user requirements in a 5G virtualized environment (Stand Alone and Non Stand Alone configurations).
  • Move Keysight applications, which run in containers on proprietary equipment to run in COTS.
  • Identify and implement ways to orchestrate the configuration.
  • Scale performance across multiple VMs with a shared database.
  • Profile performance and improve it with the latest technologies (e.g. DPDK, SRIOV, vswitch, etc.).
  • Participate in definition of new software product features.
  • Rapidly solve problems and fix bugs.
  • Participate in design and code reviews.
  • Develop unit tests and perform feature/integration testing.
  • Provide input and help resolve customer escalations for product issues.
  • Use Keysight’s testing equipment (IxNetwork/IxLoad) and potentially other traffic tools for traffic generation and protocol simulation.
  • Collaborate closely with peers, including QA engineers and software developers in a multi-site environment (US, Romania).
  • Contribute new ideas and methods to continuously improve product quality and development efficiency.
Job Qualifications



  • Experience in implementing virtualized applications/architecture.
  • Familiarity with cloud technologies (OpenStack, Kubernetes, etc.)
  • Knowledge of Software Defined Networking and Network Function Virtualization (DPDK, SR-IOV, OVS, etc.)
  • Experience with LTE/5G is a plus.
  • Experience with security protocols (e.g. IPSec, TLS) is a plus.
  • BS in computer science or related discipline.
  • 5+ years of experience developing software in C++ and C.
  • Extremely good English verbal communications skills and a desire for strong team collaboration is a must in this Agile development environment.
  • Over and above, a deep commitment to your own quality work and a strong desire to help the entire team to succeed.
  • Knowledgeable about tools and debug techniques (Wireshark, Perforce, GIT, Jenkins).
Job Function


Careers Privacy Statement 

***Keysight is an Equal Opportunity Employer.***

Keysight Technologies Inc. is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability or any other protected categories under all applicable laws.

Candidates can be considered to work from the following locations:

Americas : United States : North Carolina : Morrisville

Job ID : 36659 

Nearest Major Market: Raleigh

Job Segment: Developer, Virtualization, Engineer, Software Engineer, Computer Science, Technology, Engineering