Data Core 3rd Level Operation Expert

Date: Jul 23, 2026

Location: Istanbul, TR

Company: Vodafone

Join Us

At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to grow your career whilst finding the perfect balance between work and life, Vodafone offers the opportunities to help you belong and make a real impact.

What you’ll do

Operations, KPI Monitoring, Performance and Optimization of Packet Core Network to ensure 7 * 24 service availability and best customer experience.

  • Member of EPC project for new generation networks.
  • Managing new KPIs and existing ones to improve service and system quality
  • Developing proactive operation to reach main targets 
  • High level problem troubleshooting. Working with case related team/vendor members.
  • Vendor management team member for PS Core Vendors. 
  • Develop operation plan and strategy to increase performance.
  • Managing GW-U, UPF, AMF, SMF, GW-C, NRF, NSSF, SCEF, NEF, PCC (IoT), SMF,    Corporate AMF, SMF, GW-C, Corporate GW-U, UPF, EPG, SGSN-MME, ePDG and PCRFs operational work plans.
  • Giving guidance in developing Operation & Maintenance instructions.
  • Keep in scope systems and services 7*24 up and running. 
  • Making all requested works suitable to change management work flow and maximo regarding minimum customer effect.
  • Provide necessary support to other teams.
  • To hit the targets defined by company/boards.
  • Managing internal knowledge transfer to team members. 
  • Sharing MoPs and guides for fresh team members to increase their competence. 
  • Make troubleshooting in case of faults or service outages and solve problems.

Who you are

  • Degree qualified in a Science or an Engineering discipline
  • Min 5 years of work experience telecom industry with hands-on in Packet Core Network
  • Significant experience of GW-U, UPF, AMF, SMF, GW-C, NRF, NSSF, SCEF, NEF, PCC (IoT), SMSF,    Corporate AMF, SMF, GW-C, Corporate GW-U, UPF, EPG, SGSN-MME, ePDG and PCRFs
  • Significant experience of PCRF Systems
  • Deep understanding of Packet Core call flows, Data Roaming, Charging
  • Significant experience on scripting
  • Deep understanding of security systems
  • Strong prioritisation skills
  • Fluent English
  • Strong Communication and Interpersonal skills
  • Strong analytical thinking and excellent problem solving skills

Not a perfect fit?

Worried that you don’t meet all the desired criteria exactly? At Vodafone we are passionate about empowering people and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to still apply as you may be the right candidate for this role or another opportunity.

What's in it for you

We like to keep them flexible:•    Vflexy: Flexible Benefits Program 
•    Hybrid working kit
•    Ergonomic kit allowance 
•    Digital meal voucher
•    Flexible transportation allowance.
•    Employee assistance hotline & counselling
•    Comprehensive and flexible private health insurance
•    Discounted price deals for wide range of products & services Plus, plenty more to enjoy! If you want to know more about us and what we do, then visit our website: www.vodafone.com.trVodafone Türkiye İnsan Kaynakları | Kariyer & İş BaşvurusuInstagram: https://www.instagram.com/vodafonekariyer/Youtube: https://www.youtube.com/user/VFTurkiyeData Privacy
By applying for this job, you accept the Vodafone Privacy Policy. Please visit Privacy Policy web page at https://careers.vodafone.com/privacy-policy/turkey/  for further details.

Who we are

We are a leading international Telco, serving millions of customers. At Vodafone, we believe that connectivity is a force for good. If we use it for the things that really matter, it can improve people's lives and the world around us. Through our technology we empower people, connecting everyone regardless of who they are or where they live and we protect the planet, whilst helping our customers do the same.

Belonging at Vodafone isn't a concept; it's lived, breathed, and cultivated through everything we do. You'll be part of a global and diverse community, with many different minds, abilities, backgrounds and cultures. ;We're committed to increase diversity, ensure equal representation, and make Vodafone a place everyone feels safe, valued and included.

If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, please refer to https://careers.vodafone.com/application-adjustments/ for guidance.

Together we can.