Senior Signaling Engineer

Who are we?
Telia Carrier, formerly part of Telia Company, is owned by Polhem Infra, a Swedish investment company backed by some of the largest Swedish public pension funds. We started building our network in 1993, when our Autonomous System, AS1299, was allocated. Unlike most of our competitors, we’ve grown organically ever since. Our network now stretches 70,000 kms across Europe, the US and Asia and lets you connect directly to more than 2,300 wholesale customers in more than 125 countries. AS1299 is currently the #1 ranked global IP backbone and with more than 450 local access partners around the world, we are the backbone of your business, wherever you are.
Telia Carrier’s Signaling service uses a common IPX-based connection to combine all your roaming signaling flows into one redundant and diverse solution.
Our Roaming Signaling Exchange enables international LTE/4G roaming as well as traditional SS7 (2G/3G) message signaling based on state-of-the-art Diameter Signaling Controllers (DSCs) and Signaling Transfer Points (STPs). We peer with all major signaling providers for both SS7 and DRX.
The job
As a Senior Signaling Engineer you will be mainly responsible for planning and implementation of the Diameter Signaling Controllers (DSCs) which are currently used for the international LTE/4G Roam Connect product. You will belong to the Voice and Signaling Networks unit with employees in three countries. The position is available in any Telia Carrier office.
Responsibilities
Planning, dimensioning & implementation of Diameter Signaling Controllers (DSCs), both for physical and virtual environments
Facilitate interaction between DSCs and other tools/systems for performance monitoring, network analytics etc.
Understand the technical aspects of 4G Roam Connect and Diameter signaling and help drive development of 5G Roam Connect signaling products and technologies. Provide support to Business Units from an engineering and design point of view
Routing incl. policing functions for 4G Roam Connect signaling
Lab testing / verification for new software versions
Create, update and maintain design documents for DSC
Provide support and training to other units

Requirements
Bachelor's degree in Electrical/Computer Engineering, Computer Science, Physics or similar
At least 5 years of experience in similar roles
Thorough knowledge of Roam Connect Signaling Protocols and technologies, i.e. Diameter and Security Edge Protection Proxy
Ability to work in international environment and have excellent inter-personal and communication skills
Highly skilled in reporting tools like Excel etc.
Fluent in English (written and spoken)

Know-how in following areas would be an advantage:
underlying technology components (IPX)
GPRS roaming exchange (GRX)

Location
Any Telia Carrier office.
Application
Please, submit your application in English, no later than 2021-12-31. If you have any questions, please contact Ioannis Flokos at ioannis.flokos@teliacompany.com.