Network Solutions Architect — Data & Voice

1global; Lisboa; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

1GLOBAL is seeking a Network Solution Architect to lead the design of data and voice telecom solutions across Lisbon and Madrid. You will interface with internal and external stakeholders, define technical requirements, and drive end-to-end architecture efforts for complex, multi-country deployments.

The role requires strong expertise in mobile networks, 5G core, SIP/DIAMETER protocols, and cloud-based technologies, with excellent communication skills and English proficiency.

Qualifications

• Excellent understanding of Mobile Networks and architectures.
• Experience with MVNO architecture and roaming, including technical, commercial, and regulatory aspects.
• Solid knowledge of networking principles and security.
• Experience with MAP, CAMEL, SIGTRAN, DIAMETER, SIP protocols.
• Knowledge of OCS and Gy/Sy interfaces.
• Experience with VoLTE and VoWiFi.
• Experience with LTE, 5G, IMS, IP technologies and protocols.
• Familiar with cloud-based solutions and virtualization technologies.
• Ability to create and present High/Low Level Designs and documentation.
• Experience with 5G Core Mobile Networks and monitoring tools.
• Excellent communication and presentation skills; English required.

Responsibilities

• Lead requirements analysis with stakeholders to refine scope for implementation.
• Design new consumer and corporate telecom solutions.
• Collaborate with technical teams to define reliable, scalable solutions.
• Document and present solutions, including impacts and resources.
• Market prospect new solutions and engage suppliers in RFx processes.
• Monitor technology trends and define roadmaps for the portfolio.
• Ensure quality of documentation (HLD/LLD/WO) and implementation testing.
• Ensure compliance with industry standards and regulations.
• Work on complex solutions affecting current and future products.

Skills

Mobile networks

MVNO architecture

Roaming environment

Networking principles

SIP/DIAMETER/SIGTRAN

5G Core Networks

VoLTE/VoWiFi

Cloud & virtualization

High/Low Level Design

Stakeholder communication

Project planning

Cross-cultural collaboration

Education

Degree in Telecom Engineering or Computer Science or equivalent experience

Job description

1GLOBAL is seeking a Network Solution Architect to lead the design of data and voice telecom solutions across Lisbon and Madrid. You will interface with internal and external stakeholders, define technical requirements, and drive end-to-end architecture efforts for complex, multi-country deployments.

The role requires strong expertise in mobile networks, 5G core, SIP/DIAMETER protocols, and cloud-based technologies, with excellent communication skills and English proficiency.