PROTEI is a group of full-cycle Russian IT companies. Since 2002, we have been developing and producing products for mobile and fixed-line operators in Russia and abroad, government customers, and corporations.
We are expanding the IMS implementation and support team.
IMS is digital wired telephony. The product line for IMS networks includes P-CSCF, S-CSCF, C-CSCF, HSS, AS, MGW and meets the requirements of 3GPP standards. IMS solutions can be easily deployed on any hardware and provide the full range of voice services.
Your tasks:
- Implementation and support of eMSC/IMS projects.
- Diagnosis and analysis of various scenarios using SIP/DIAMETER/CAP/MAP/BSSAP/RANAP protocols.
- Diagnosis and resolution of issues related to the operation of our solutions and interaction with equipment from other vendors.
- Implementation of new projects on the customer's network, conducting updates.
- Interaction with the development team/project managers.
- Conducting training for customers.
- Participation in weekly paid on-call duties.
- Participation in business trips.
Our expectations:
- Linux skills, knowledge of basic commands.
- Knowledge of network technologies (TCP/IP stack, routing and switching).
- Knowledge of SIP, DIAMETER, CAMEL protocols.
- Knowledge of the architecture and principles of operation of 2G/3G/4G mobile networks.
- Understanding, knowledge of the architecture and principles of operation of IMS systems.
- Understanding the principles of call routing in mobile networks of various generations.
- Wireshark software skills for analyzing signaling traffic.
- Ability to work with RFC and 3GPP standards and specifications.
- English language proficiency sufficient for reading and understanding technical documentation.
Will be a plus:
- Experience working with MSC and knowledge of BSSAP/RANAP protocols.
- Experience in operating IMS solutions.
- Ability to work with databases (MySQL, PostgreSQL).
- Experience in writing scripts in Bash or Python.
- Spoken English.
We offer:
- Employment according to the Labor Code of the Russian Federation, official salary.
- Work format: office, flexible start and end of the working day (40 hours per week).
- Office: within walking distance of Vyborgskaya metro station.
- Health: extended voluntary medical insurance with dental care.
- Meal subsidy in the office.
- Sport: 50% fitness compensation.
- Training: participation in conferences, specialized courses, internal trainings.
- Vibrant corporate events.
