Core Engineer (Telco)

Location: Riga, Latvia

Company

hirify.global is a global data MVNO providing enterprise-grade connectivity and IoT services across 200+ countries and 600+ mobile carriers.

What you will do

• Troubleshoot real network issues across 3G, 4G, and 5G Standalone (SA) infrastructure.
• Own technical tickets end-to-end and lead integrations on a live production network.
• Design, scale, and integrate network elements into the existing core environment.
• Manage GTP Proxy, PGW, PCRF, and signaling routing (Diameter/Radius).
• Perform 24/7 on-call duties to resolve critical network incidents.

Requirements

• At least 3 years of practical experience as a core network engineer.
• Deep understanding of MNO/MVNO architecture and end-to-end GTP flow design.
• Complete familiarity with 3GPP standards (GTP-C/U, CUPS, Diameter, Radius, AAA flows).
• Hands-on experience with 5G-SA architecture (AMF, SMF, UPF, NRF, PCF).
• Strong understanding of GRX routing and IPX interconnect operations.
• Basic scripting skills using Python or similar languages.

Culture & Benefits

• Monthly 200 EUR Wolt food allowance.
• Medical insurance and free mobile services with Tele2.
• Professional development opportunities within an international, innovative environment.
• Car parking spot and regular team events.
• Social benefits and a challenging workplace with high growth potential.