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Konkurs je istekao.

PS Core/EPC Network Expert

umlaut d.o.o.

Beograd, Bulevar Zorana Đinđića 2a


ugovor puno radno vreme

PS Core/EPC Network Expert

 Ref.Nr: 4247 | Location: Belgrade


◍ Master’s degree in electrical engineering, computer science, information technology or related discipline
◍ At least 5+ years of NW Architecture related working experience
◍ Excellent troubleshooting skills, good overview on operational aspects of mobile communication networks
◍ Technical analysis capabilities of mobile networks (LTE, WCDMA, GSM, 5GC, WIFI or similar) with focus on PS core call flows
◍ Experience in L2 (Spanning tree, M-lag, Eth-trunk, VLAN, etc.) and L3 switching /routing (IPv4/6, OSPF, ISIS, BGP, MPLS), VxLAN, SDN
◍ Excellent knowledge of packet core nodes charging (Gx, Gy, GTPCv1/v2, GTPUv1, RANAP, IUPS, Diameter, S1AP, PFCP)
◍ Good knowledge of 5GC newly nodes like NRF, NEF, NSSF, SEPP, BSF/SCP and features like slicing, CAFIP
◍ Excellent knowledge about DNS flows and features like ECS, eDNS and TCP, QUIC to troubleshoot slow start & low throughput issues
◍ Good knowledge different virtualization layer Openstack, vmware vEPC deployment
◍ Knowledge in analyzing, designing, dimensioning, rollout, auditing and optimization of core network elements
◍ Capable to work independent and in a team, reliable & proactive
◍ High degree of customer and quality orientation
◍ High flexibility and willingness to travel domestic and international
◍ Fluent in written and spoken English

our öffer

◍ Start-up mentality combined with an international work atmosphere in a multi-cultural environment
◍ Provide design, planning and operational consulting services to network operators with different core network implementations and radio access technologies
◍ Perform detailed analysis of designs and concepts of complex communication networks
◍ Analysis and evaluation of measurement data to identify and classify failure patterns of low performing voice (VoLTE and Legacy) and data service KPI’s
◍ Conduct end to end analysis and optimization of packet core network parameters, features and configuration
◍ Support network operators in the migration from conventional to modern telecommunications networks
◍ Create visually compelling presentations of the results, project status, actions and recommendations

top 3 reasöns

1. Innovative projects with big name clients and exposure to future, cutting edge technologies
2. Unlimited individual growth opportunities and the ability to create a personalized career path
3. Access to a global network with opportunities to live and work abroad
4. +X: A team spirit and family-like culture as exciting and colourful as our gradient coloured coffee marshmallows


umlaut is a 4500+ people strong global full service cross industry end-to-end partner that applies its deep-running interdisciplinary, collaborative advisory and fulfilment capabilities to change its clients fortunes for the better and - on top of that - add value, quality and focus to their organisations and produce.


Boban Pavlovic
+ 381 62 72 72 72
WhatsApp & Viber available as well.

Konkurs je istekao.


Why umlaut adds something on töp?umlaut adds something on top - this promises to help our clients all over the world to change the quality of their technological capabilities and organizational culture from regular to special. We add value on top of their services, products and entire organizational fabric, all the way throughout our partnership. Expected amount or quality plus an unexpected extra: 100%. Plus X.umlaut Belgrade story.From the very first project initiative in 2006, the company registration ... Saznajte više

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