Java/C++ Developer

  • Pełny etat
  • Warszawa


Our Team deploys and maintains IMS services on smartphones for mobile operators throughout the world. We are looking for Software Developers and Telecommunication Engineers, both Junior and Senior.

Role and Responsibilities

  • Development and maintenance of Android system-level service
  • Support of IMS services (VoLTE, VoNR, ViLTE, Wi-Fi Calling, SMSoIP and RCS)
  • Analysis and implementation of latest GSMA/3GPP requirements
  • Issue analysis and resolution as main activity
  • Network protocols analysis
  • Preparation and review of technical documentation
  • Innovation research
  • Development of internal automation tools

Skills and Qualifications

  • Degree in Computer Science or related field
  • Experience with Java and/or C++
  • Spoken and written English at conversational level (B2)
  • Team-oriented approach Nice to have
  • Experience with IMS and/or VoIP technology
  • Experience using version control systems (Perforce, GitHub, Gerrit etc.)
  • Knowledge of communication protocols such as SIP, SDP, IKE/IPSec, MSRP, HTTP, TCP/IP, UDP, RTP
  • Understanding of mobile network technologies such as 2G, 3G, 4G/LTE and 5G
  • Hands-on experience with Wireshark, Swarm, Confluence

We offer


  • Friendly working atmosphere
  • Opportunity to work in multiple projects
  • Working with latest technologies on the market
  • Regular participation in external/internal training courses
  • Monthly integration budget
  • Start of work between 7 a.m. and 10 a.m.
  • Hybrid work model (2/3 days per week in Warsaw office)


  • Private medical care (possibility to add family members for free)
  • Multisport card
  • Life insurance
  • Lunch card
  • Partial reimbursement of the cost of an English language course
  • Possibility to learn another language for free
  • Variety of discounts (firm products, theaters, restaurants)
  • Free access to Copernicus Science Center
  • Possibility to test new firm products


  • Office in Warsaw near metro station
  • Attractive relocation package

Aby ubiegać się o tę pracę, wyślij swoje dane e-mailem na

Skip to content