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Core Engineer (Core Network Engineering team)
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Offer summary

(Summary generated by AI based on the full job description)

The project involves a vehicle connectivity platform in the automotive industry. Key technologies include 3G, 4G, 5G Standalone, GTP-C, GTP-U, Diameter, Radius, 5G-SA and 3GPP standards. Responsibilities cover end-to-end network troubleshooting, leading integrations and production projects. Practical knowledge of network protocols and Python scripting is required. The salary ranges from 3000-4000 EUR per month with medical care, food allowance, and insurance benefits.

new

Core Engineer (Core Network Engineering team)

Company: TeamQuest Sp. z o.o.

from: 4 August 2026
to: 3 September 2026
salary not specifiedcontract of employment (full-time)
Salary details

Salary: 3000 - 4000 EUR

Offer parameters
level:mid
working mode:hybrid
location:Riga, abroad (Latvia)
Riga, abroad (Latvia)

Requirements

Expected technologies

3GPP standards
5G-SA architecture
MNO/MVNO architecture

Our requirements

  • Deep understanding of MNO/MVNO architecture and end-to-end GTP flow design
  • Complete familiarity with 3GPP standards across 2G/3G/4G and 5G, including:
  • GTP-C / GTP-U, CUPS - bearer lifecycle, session management, data plane flows
  • Diameter & Radius - routing, realms, application IDs (Gx, Gy, S6a), AAA flows
  • 5G-SA architecture - AMF, SMF, UPF, NRF, PCF - hands-on or advanced lab experience
  • Strong understanding of GRX routing and IPX interconnect operations
  • Understanding of roaming processes and procedures: IR.21,IPX, and GRX operations
  • Hands-on experience
  • PGW - configuration, troubleshooting, session management
  • PCRF- Gx interface, policy management
  • GTP Proxy - GTP-C interception, roaming traffic steering
  • Diameter - routing configuration, signaling troubleshooting, experience analyzing Diameter flows
  • Radius - AAA flows, authentication, and accounting troubleshooting, experience analyzing Radius
  • Understanding of roaming processes and procedures (IR.21, familiarity with IPX and GRX operations)
  • Working with monitoring tools
  • Our engineer should have the following skills:
  • Ability to design, scale, and integrate a network element into a live network
  • Hands-on experience in integration between network elements
  • Comfortable working under pressure during live network incidents
  • At least 3 years of practical experience as a core engineer
  • Familiar with APIs and basic scripting (Python or similar)
  • 24x7 On-call duty
  • Team player

Your responsibilities

  • The role is technical and operational
  • You will troubleshoot real network issues across 3G, 4G, and 5G Standalone, own tickets end-to-end, and lead integrations and projects on a live production network
  • We are a focused team that moves fast and takes full ownership of activities end to end
  • You will grow quickly into independent contributors

About the project

Our client is an innovative technology company that has been revolutionizing the automotive industry since 2025 by providing advanced connectivity solutions. They specialize in creating a vehicle connectivity platform that enables data transmission from vehicles and their surroundings, supporting the monitoring of vehicle performance and driver behavior analysis. With a global reach, including locations in the USA, UK, Latvia, Portugal, Hong Kong, and Israel, the company offers an international work environment and the opportunity to work on globally significant projects. We are currently looking for talents for various positions who want to join our team and contribute to the further development of innovative technologies in the automotive industry. If you are ready for challenges in a dynamically developing company, check our current job offers.

This is how we organize our work

This is how we work

at the client's siteyou have influence on the technological solutions appliedyou have influence on the product
Company

What we offer

  • An exciting and challenging workplace with great skill and knowledge development opportunities
  • The opportunity to join a team of highly professional specialists in an international environment
  • The opportunity for professional development within a reputable international innovative and growing company
  • Salary level: 3000 - 4000 EUR gross per month
  • Social benefits
  • 200 EURO monthly Wolt food allowance
  • Medical insurance
  • Free mobile services with Tele2
  • Car parking spot

Recruitment stages

  • 1.
    Recruitment Interview

TeamQuest Sp. z o.o.

W Teamquest zajmujemy się rekrutacją do branży IT od ponad 18 lat. W naszej bazie mamy bezpośrednie kontakty do 63 240 kandydatów IT (stan na 16.07.2026) aktywnych na rynku pracy. Docieramy do tych kandydatów, których nie ma LinkedIn-ie i którzy nie wysyłają swoich aplikacji na ogłoszenia. Spośród nich znajdziemy dla Ciebie tych, którzy najlepiej wpisują się w profil stanowiska, na które chcesz zatrudnić.
Tylko w 2024 roku zatrudnienie u naszych Klientów znalazło prawie 200 pracowników IT – programistów, administratorów sieci, testerów a nawet CTO.
Core Engineer (Core Network Engineering team)
I apply to:
TeamQuest Sp. z o.o.
Riga, abroad (Latvia)
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