Telecommunications Network Operations Intern

Location: Lisbon, Lisbon, Portugal Department: Operations

About Us

1GLOBAL is a technology-driven global mobile communications provider helping enterprises and consumer brands deliver seamless connectivity worldwide. Powered by a best-in-class telecom platform, proprietary eSIM technology, and its own mobile core network across 15 countries, 1GLOBAL operates as a fully regulated telecommunications provider in 43 countries.

Founded in 2022, 1GLOBAL has rapidly become one of Europe's fastest-growing telecom technology companies, connecting more than 80 million people and devices globally. Our customers include leading banks, multinational enterprises, global retailers, travel companies, payment service providers, and digital-first businesses.

Headquartered in the Netherlands, with R&D hubs in Lisbon, Berlin, and São Paulo, 1GLOBAL employs over 550 professionals across 16 countries. With annual revenues exceeding US$200 million and a strong track record of profitability, we continue to invest in innovation, infrastructure, and international expansion as we redefine the future of global mobile connectivity.

About the Team

We are looking for a Telecommunications Network Operations Intern to join our Networks Operations team, part of the wider Service Assurance function. This team acts as a 2nd line technical support team, working closely with Customer Services, Customer Success, Engineering, Product, vendors, and NOC teams to troubleshoot and resolve customer-impacting network issues.

You will support the investigation of customer complaints and operational incidents across services such as registration, voice, data, and SMS. This is a hands-on learning role for someone who wants to build practical experience in telecom operations, incident handling, network troubleshooting, and service assurance.

The ideal candidate is organised, analytical, curious, and calm under pressure. You should be comfortable following guidance from experienced engineers and remote teams, while also being proactive in learning, documenting, and communicating clearly.

About the Role

Support the investigation and troubleshooting of customer complaints related to registration, voice, data, SMS, and connectivity services.

Assist the Networks Operations team with daily case handling, monitoring, and incident follow-up.

Help analyse network faults using diagnostic tools, monitoring platforms, logs, and protocol traces.

Learn and support troubleshooting across telecom signalling flows such as SS7, MAP, ISUP, SIP, CAP, DIAMETER, and related network procedures.

Escalate complex or high-impact issues to senior engineers, Engineering teams, vendors, or NOC teams with clear and accurate context.

Maintain accurate records of incidents, troubleshooting steps, resolutions, and follow-up actions.

Support incident response activities, including impact assessment, updates, and post-incident documentation.

Contribute to root cause analysis by collecting evidence, timelines, logs, traces, and operational observations.

Help ensure service issues are handled in line with SLAs, operational KPIs, and customer-impact priorities.

Collaborate with Customer Services, Customer Success Managers, Engineering, Product, and other operational teams to support smooth service delivery.

Create and maintain internal documentation, troubleshooting guides, procedures, and knowledge articles.

Share learnings and best practices with the team to improve operational efficiency and consistency.

Requirements

About You

Must-haves

Degree in progress or recently completed in Telecommunications Engineering, Computer Science, Network Engineering, or a related technical field.

Basic understanding of mobile networks, IP networking, telecom services, or distributed systems.

Interest in troubleshooting telecom services such as voice, data, SMS, and network registration/attach flows.

Familiarity with network protocols, signalling concepts, or tools such as Wireshark is a strong advantage.

Interest in learning telecom signalling protocols such as SS7, MAP, ISUP, SIP, DIAMETER, and CAP.

Good analytical and problem-solving skills, with attention to detail.

Ability to organise work, follow priorities, and ask for clarification when needed.

Strong written and verbal English communication skills.

Comfortable working with remote teams and cross-functional stakeholders.

Proactive, motivated, and willing to learn in a fast-moving operational environment.

Calm and structured approach when dealing with urgent or unexpected situations.

Team-oriented mindset with a commitment to doing things properly and improving continuously.

Nice-to-haves

Previous internship, academic project, or hands-on exposure involving telecom, networking, monitoring, support, or systems operations.

Basic knowledge of mobile core, RAN, IoT, M2M, eSIM, or roaming environments.

Experience using ticketing systems such as Jira, Salesforce, or similar tools.

Exposure to incident management, customer support, or operational reporting.

Understanding of service KPIs, SLAs, alarms, monitoring, or customer-impact assessment.

What You Will Learn

How a 2nd line Networks Operations team supports customer-facing services.

Practical telecom troubleshooting across registration, voice, data, and SMS services.

How incidents are detected, investigated, escalated, and resolved.

How to analyse traces, logs, monitoring events, and customer-impact symptoms.

How Service Assurance teams work with Customer Services, NOC, Engineering, Product, and vendors.

How to document technical findings clearly and contribute to operational improvement.

Benefits

Why 1GLOBAL?

Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 100% year-on-year under the leadership of successful tech entrepreneurs.

Major Transaction Exposure: Be in the driver’s seat for transactions that will have an impact on the future telco industry.

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