1GLOBAL

Telecommunications

NetworksSupportEngineer

€35–55k ~AI est. Lisbon, Lisbon, Portugal FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Mid+ candidates.

The Brief

“Networks Support Engineer at 1GLOBAL. Skills: CORE networks, RAN networks, Telecom signaling. Monitor CORE networks. Support CORE networks”

Industry & Context.

Telecommunications
Problems you'll solve

Troubleshooting; Root cause analysis

Eligibility Requirements

On-call rotations

What They're Looking For.

Must Have

Degree in Telecommunications Engineering, Computer Science degree, Solid experience troubleshooting CORE networks, Solid experience troubleshooting RAN networks, Experience diagnosing Voice issues, Experience diagnosing Data issues, Experience diagnosing SMS issues, Experience diagnosing network attach flows, Experience diagnosing registration flows, Excellent English communication skills

Nice to Have

Knowledge of IoT ecosystem, Knowledge of M2M services

What You'll Do.

Monitor CORE networks

Support CORE networks

Troubleshoot service-impacting issues

Analyze network faults

Resolve network faults

Coordinate with vendor

Coordinate with engineering teams

Participate in root cause analysis

Implement corrective actions

Support daily operations

Support incident management

Maintain documentation

Collaborate with cross-functional teams

Stay updated on network evolutions

How You'll Work.

Team & Collaboration

Cross-functional teams; Radio Planning; Core Engineering; Customer Support

Communication Scope

Written communication; Verbal communication

Full Job Description

**About Us** **1GLOBAL** is a technology-driven global mobile communications provider, delivering global connectivity solutions to enterprises and consumers. Powered by a best-in-class telecom platform – including its own owned and operated global mobile core network, fully fledged in-house developed eSIM technology, and an extensive portfolio of telecom licenses – 1GLOBAL operates as a fully regulated telecommunications provider across 40 countries worldwide. We serve many of the world’s leading banks, enterprises, and digital-first businesses, including neo-banks, global fast moving consumer goods companies, travel leaders, and payment service providers. Today, 1GLOBAL connects more than **70 million people and devices globally** , enabling our customers to launch, scale, and innovate with confidence in the mobile ecosystem. 1GLOBAL is a profitable, fast-growing business. With full-year revenues in 2025 exceeding **US$200 million** and profits of over **US$25 million** , we generate strong cash flows to fund our growth allowing us to continuously invest in infrastructure, platform innovation, and global expansion. Recent years have marked a defining phase in our journey, with major enterprise and mass-consumer client wins accelerating our evolution into a global mobile connectivity powerhouse, purpose-built to enable consumer brands to enter and succeed with their own aspirations to offer telecommunications services to their clients. Founded in 2022 by experienced technology entrepreneurs, Hakan Koç and Pyrros Koussios, 1GLOBAL has rapidly emerged as a European technology leader **shaping the future of global telecommunications**. We operate as a fully regulated Mobile Virtual Network Operator (MVNO) in 12 countries and as a regulated telecom operator in an additional 28 markets. Headquartered in the Netherlands, with world-class R&D hubs in Lisbon, Berlin, and São Paulo, our team of close to **500 experts across 15 countries** is united by a single ambition: to r

Free ATS check

Applying for this Networks Support Engineer role?

Most applicants get filtered before a human reads their resume. See if yours makes the cut.

ANONYMOUS · UNFILTERED

What do employees actually say about 1GLOBAL?

Real rants from real employees. Read before you apply.

Read Company Rants →