Signalling & HSS Engineer — Global Telecom Innovator

1global; Lisboa; Híbrido; EUR 70 000 - 100 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Growth opportunities

International exposure

Open communication culture

Resumo da oferta

1GLOBAL is seeking an HSS and Signalling Engineer based in Lisbon. You will define requirements for signalling routing, subscriber data management, and evolve the technology roadmap within a regulated MVNO/MVNA environment. You will collaborate across networks teams on project delivery and technical documentation.

The role emphasizes live implementations, end-to-end testing, and cross-functional collaboration with carriers and service providers to meet network needs.

Qualificações

• Proven experience in live mobile telecom solutions (GSM, UMTS, LTE, IMS) and network design.
• Knowledge of 3GPP, GSMA, ITU standards and specifications.
• Experience in designing, testing and operating signalling network functions (HLR/HSS).
• Experience with signalling interconnects (SIGTRAN, DIAMETER) using SCTP.
• Experience with HLR/HSS, subscriber profiles and interfaces.
• Knowledge of IMS Architecture and roaming interfaces.
• Experience in mobile services charging (online) and Ro, Gy, Gx.
• Knowledge of protocol suites including M3UA, M2PA, DIAMETER, MAP, CAMEL, Sh, Cx.
• Knowledge of 5G SA signalling (SCP/SEPP) and AUSF/UDM/UDR.
• Experience with protocol analyzers like Wireshark and Astelia.
• Familiar with ETSI NFV architecture and MVNO/MVNE/MVNA.
• English proficiency mandatory.
• Degree in Telecom Engineering or CS or equivalent.

Responsabilidades

• Collaborate with Networks teams to deliver new solutions.
• Design, implement and migrate network projects end-to-end.
• Create technical documentation (HLD/LLD/WO) and maintain lifecycle.
• Perform live environment implementations and end-to-end testing.
• Define QoS, performance indicators and capacity plans.
• Coordinate with carriers and partners for interconnects and changes.

Conhecimentos

Signalling networks design

GSM/UMTS/LTE/IMS

DIAMETER/SIGTRAN

HLR/HSS knowledge

5G SA signalling

English proficiency

Formação académica

Degree in Telecom Engineering or Computer Science

Ferramentas

Wireshark

Astelia

Descrição da oferta de emprego

1GLOBAL is seeking an HSS and Signalling Engineer based in Lisbon. You will define requirements for signalling routing, subscriber data management, and evolve the technology roadmap within a regulated MVNO/MVNA environment. You will collaborate across networks teams on project delivery and technical documentation.

The role emphasizes live implementations, end-to-end testing, and cross-functional collaboration with carriers and service providers to meet network needs.