IP Network Team Lead

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 redefine global mobile connectivity through technology, scale, and execution excellence.

About the Team We are looking for a talented and driven IP Networks Team Lead to join our Technology Department. Your mission is to deliver a world-class network foundation supporting global mobile, cloud, and connectivity services. As the IP Networks Team Lead, you will be responsible for designing, operating, and evolving our global IP backbone and data center networks, ensuring they are scalable, secure, and highly available. This role blends technical leadership and hands-on engineering, guiding the team in building and maintaining next-generation network infrastructure across our on-prem and cloud environments. You will act as both a technical authority and people leader, responsible for defining network architecture standards, enforcing best practices, and managing priorities across multiple initiatives. We are open to hiring this role in São Paulo, Brazil. Fluency in English is essential for this role. Please ensure your CV is submitted in English as part of your application.

About the Role • Lead, mentor, and develop a team of network engineers, managing performance, priorities, and technical direction. • Design, implement, and maintain LAN, WAN, data center, and backbone network infrastructure. • Architect and operate high-availability global IP networks interconnecting data centers and cloud regions. • Ensure network redundancy and resilience testing across service, infrastructure, and transport layers. • Plan and oversee SDN and SD-WAN to enable automation and dynamic traffic engineering. • Deploy and manage routers, switches, and firewalls. • Implement and maintain IPv6, QoS, and traffic-engineering policies to guarantee consistent network performance. • Monitor network health, performance, and capacity, ensuring high availability, low latency, and reliability. • Investigate complex network incidents, lead root-cause analysis, and ensure follow-up actions are implemented. • Ensure network security and compliance with internal policies and industry standards (ISO 27001, PCI-DSS, CIS). • Automate network provisioning, configuration, and monitoring using Terraform, Ansible, or similar tools. • Continuously improve observability and visibility using tools such as Prometheus, Grafana, and SNMP-based systems. • Support migrations, upgrades, and expansions while minimizing downtime and risk. • Maintain accurate documentation of configurations, topology diagrams, and operational procedures. • Generate regular network performance and incident reports with actionable recommendations.