Sanja Kosjer
Principal IT Roaming and Interconnect Expert at A1 Srbija d.o.o. | Serbia
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Call Centre Agent (1st level support) in CMO Customer Service department at Vip mobile d.o.o. in October 2026 to Present
Back Office Agent (2nd level support) in CMO Customer Service department at Vip mobile d.o.o. in October 2026 to Present
Help Desk Expert in CTO IT&BSS department at Vip mobile d.o.o. in October 2026 to Present
Roaming & Interconnection Expert in CTO IT&BSS department at Vip mobile d.o.o. in October 2026 to Present
Principal IT Roaming and Interconnect Expert at A1 Srbija d.o.o. in October 2026 to Present
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Faculty of Organizational Sciences, Master
Faculty of Organizational Sciences, Bachelor
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Roaming
Billing Systems
Interconnection
Customer Service
GSM
Mobile Devices
VAS
SS7
Telecommunications
Management
Access
SMS
Core Network
Mobile Communications
HLR
Call Centers
Call Center
BSS
Testing
Wireless
Integration
2G
UMTS
Mobile Telephony
Account Management
Provisioning
3G
Telecommunications Billing
IP
Interconnect
SIGTRAN
Telco
GPRS
SMPP
Business Support System (BSS)
CDMA
Computer Network Operations
General Packet Radio Service (GPRS)
Home Location Register (HLR)
HSPA
Internet Protocol (IP)
LTE
MSS
NSN
Open Source Software
PDH
QoS
RAN
RNC
SDH
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Discover more about A1 Srbija d.o.o.What is Sanja Kosjer email address?
Email Sanja Kosjer at [email protected] and [email protected]. This email is the most updated Sanja Kosjer's email found in 2026.
How to contact Sanja Kosjer?
To contact Sanja Kosjer send an email to [email protected] or [email protected].
What company does Sanja Kosjer work for?
Sanja Kosjer works for A1 Srbija d.o.o.
What is Sanja Kosjer's role at A1 Srbija d.o.o.?
Sanja Kosjer is Principal IT Roaming and Interconnect Expert
What is Sanja Kosjer's Phone Number?
Sanja Kosjer's phone (**) *** *** 344
What industry does Sanja Kosjer work in?
Sanja Kosjer works in the Telecommunications industry.
Sanja Kosjer Email Addresses
Sanja Kosjer Phone Numbers
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