Senior IP Network Engineer

Senior IP Network Engineer - Telecommunications

Technology

Lisbon, Portugal

Berlin, Germany

Full-time

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 KoçandPyrros 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 Senior IP Network Engineer to join our IP Networks Team and help us design, build, and manage the future of our global IP infrastructure. This is an exciting opportunity for someone passionate about working with cutting‑edge networking technologies, including SDN, and creating scalable, secure, and high-performance network solutions.

As a Senior IP Engineer / Architect, you will be at the forefront of shaping and evolving our global IP backbone, ensuring it supports interconnections with Mobile Network Operators (MNOs) and spans cross‑continental data centers. You’ll leverage SDN technologies to design and optimise network architectures that ensure seamless scalability, security, and performance. Your expertise will be crucial in building a future‑proof network infrastructure that meets the growing demands of global connectivity and provides world‑class solutions across multiple regions.

About the Role

• SD-WAN Implementation & Optimisation: Lead the deployment and optimisation of SD-WAN solutions to enhance wide area network performance, simplify network management, and reduce costs across our global infrastructure.
• SDN Architecture & Integration: Architect and implement SDN solutions to drive network automation, flexibility, and scalability, enabling centralised control and streamlined management of network resources.
• Global Network Design: Design, deploy, and manage a high-performance, global IP backbone, ensuring reliable interconnections with Mobile Network Operators (MNOs) and seamless cross-continental data center connectivity.
• Traffic Optimisation: Use SD-WAN to optimise network traffic, ensuring intelligent routing and minimising latency, while leveraging SDN to improve overall network efficiency and performance across regions.
• Cloud Integration: Seamlessly integrate modern solutions with cloud environments to ensure high availability, low-latency, and scalable connectivity across multiple cloud platforms (e.g., AWS, OCI).
• Network Security & Compliance: Implement robust security policies for SD-WAN, Zero Trust models, VPNs, and firewalls, ensuring compliance with industry standards and securing cross-border data flows.
• Collaboration & Cross-Functional Engagement: Work closely with business units and cross-functional teams to deliver network solutions that meet evolving needs and ensure seamless service delivery.
• Automation & Orchestration: Leverage automation tools like Terraform, Ansible, and SD-WAN controllers to streamline deployment and optimize network configurations for operational efficiency.
• Performance Monitoring & Optimisation: Continuously monitor, analyze, and improve network performance using SD-WAN analytics and SDN monitoring tools, ensuring reliability and operational excellence.
• Documentation & Reporting: Ensure thorough and up-to-date network documentation, while delivering clear reports on network performance, scalability, and security to stakeholders.

Requirements

About You

• Experience: 10+ years as an IP/Networking Engineer, with expertise in designing, deploying, and managing high-availability, scalable intercontinental networks.
• Mobile IP Networks & Backhaul: Extensive experience designing and managing IP-based mobile backhaul networks for 4