C++ Reusable Component Developer Intern

Job Description

Date: Sep 20, 2019

Being a student at Ericsson is special. We give you the knowledge to learn, challenging tasks to grow yourself, and the opportunity to work on projects that change the future of technology in telecommunication.


You’ll only get to start your career once. Let’s make it a good one.


Ericsson Hungary is looking for C++ Reusable Component Developer Intern.


Our team is part of the "Middleware IP and OS" (MIPOS) development center in the Component Development Unit (CDU). We are responsible for the following CBA components: eVIP, Database Services (DBS; holding DBN and DAS), vDICOS and C-Diameter. All components are written in C\C++ (DAS and C-Diameter is written in C++ 11).


  • DBN: DBS is an in-memory, fault-tolerant, object-oriented, distributed database management system with geographic redundancy. It is used in IP-based telecom solutions for storing session, policy, and subscriber data. DBS is developed in C++ under Linux using git and Jenkins, and is deployed on virtualized clusters.
  • DAS: DAS provides a database-agnostic data access service for other CBA components and for CBA applications
  • vDICOS: Eco-system supporting development and runtime execution of telecom grade application business logic written in C++ targeting CBA based deployments (user applications: HSS, MTAS, CSCF, CSCF). It is the next generation evolution of the Ericsson Telecom Server Platform (TSP).
  • C-Diameter: Common implementation for the Diameter Base protocol (RFC 6733). It is a Common-ID component with adaptations towards CBA and ADP (micro services). It is implemented using C++ 11.
  • eVIP: The eVIP (Evolved Virtual IP) component is part of CBA (Component Based Architecture) that supports load balancing of IP traffic and software defined routing to enable redundant and scalable IP routing for various applications and solutions. eVIP is written in C programming language in Linux environment, connecting to a TCL-based function test environment (this is maintained by designers), and the system test environment which is Python-based (partly JCAT, partly RobotLogger based on RobotFramework).


The teams are split between Stockholm and Budapest (2 design teams and 1 test team, half of each one in Budapest, the other half in Stockholm).


What you will do:

Our I&V (test) team is responsible for verification of the components against functional and non-functional requirements (e.g. characteristics, robustness, stability, upgrade, maintainability, redundancy, overload):

  • Develop and maintain test automation framework and the test cases in Java. (JCAT)
  • Running and analyzing automated TCs including trouble-shooting. (Continuous Integration)
  • Network infrastructure configuration / adaptation to new requirements
  • Verification of system requirements


Apply if you have/are:

  • Ongoing studies at a Hungarian university
  • Strong programming and troubleshooting experience in C++ preferably
  • Experience with using virtualization technologies is an advantage (KVM, VirtualBox, VMware)
  • Solid Linux knowledge
  • Scripting knowledge (e.g. Python, bash)
  • Basic understanding of IP-based protocols (TCP/IP, UDP, SIP, SCTP), VLAN, routing
  • Feeling convenient in agile way of working
  • A clear customer focus
  • Open to learn and a good team-player
  • Good knowledge in English, both written and spoken


It’s nice if you have:

  • experience in virtualization technologies (Openstack, VMware, KVM)
  • experience in BSP-8100 configuration
  • IMS experience
  • openness for leadership roles


What we offer

  • Professional training courses
  • Flexible working hours
  • High standard working environment (bicycle storage)
  • Right next to the BME and ELTE campus, in a brand new building
  • International career opportunities
  • Great team spirit, fun events



Budapest, Hungary


What you need to know about Recruitment at Ericsson?

As a first step within our selection process, you will be asked to fill out our technical tests based on your experience and preference to work in.

The candidates who best match the criteria for the position, will move on to the next step in the process – the interview.


About Ericsson

Ericsson is one of the leading providers of Information and Communication Technology (ICT) to service providers, with about 40% of the world’s mobile traffic carried through our networks. We enable the full value of connectivity by creating game-changing technology and services that are easy to use, adopt and scale, making our customers successful in a fully connected world.


Ericsson provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, marital status, pregnancy, parental status, national origin, ethnic background, age, disability, political opinion, social status, veteran status, union membership or genetics.

Ericsson complies with applicable country, state and all local laws governing nondiscrimination in employment in every location across the world in which the company has facilities. In addition, Ericsson supports the UN Guiding Principles for Business and Human Rights and the United Nations Global Compact.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, training and development.

Ericsson expressly prohibits any form of workplace harassment based on race, color, religion, sex, sexual orientation, marital status, pregnancy, parental status, national origin, ethnic background, age, disability, political opinion, social status, veteran status, union membership or genetic information.


Primary country and city: Hungary (HU) || || Budapest || R&D

Req ID: 297335