IP Network Team Lead - São Paulo Based

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 16 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.

Requirements

About You

Must Have

• Experience: 10+ years as an IP/Networking Engineer, with expertise in designing, deploying, and managing high-availability, scalable intercontinental networks (including at least 2+ years in a leadership role).
• Mobile IP Networks & Backhaul: Extensive experience designing and managing IP-based mobile backhaul networks for 4G/5G, ensuring seamless delivery of traffic, data, and voice services.
• SD-WAN & SDN: Proven expertise with SD-WAN and SDN technologies like Cisco ACI or NDFC, enabling network automation and optimization of global IP backbones.
• IPv6 & QoS: Strong experience with IPv6 deployment and QoS configuration to optimize bandwidth and ensure high-performance, reliable connectivity.
• Data Center & Backbone Design: Skilled in designing and managing global IP backbones and interconnected data centers for high-performance, low-latency connections.
• Advanced Network Protocols: Expert-level knowledge in TCP/IP stack, including TCP, UDP, ICMP, SMTP, SNMP, LDAP, DNS, NTP, and other essential protocols. Proficient in dynamic routing protocols like BGP, OSPF, and MPLS.
• Network Security & Compliance: Expertise in IPSec VPNs, security hardening, and compliance frameworks (PCI-DSS, ISO27001, CIS).
• Layer 2 & Layer 3 Management: Hands-on experience managing Layer 2 (STP, MSTP) and Layer 3 multiservice networks with MPLS and traffic engineering.
• Network Automation & IaC: Proficient in Terraform, Ansible, and other tools to automate network provisioning and streamline deployments.
• Network Monitoring & Observability: Expertise in tools like Prometheus, Grafana, SNMP, and Wireshark for network monitoring and performance optimization.
• High-Performance Networking: Proven ability to design and optimize solutions for WAN optimization, traffic engineering, and latency reduction.
• Leadership & Collaboration: Strong leadership skills in mentoring engineers, driving network strategy, and collaborating with cross-functional teams.

Nice to Have

• Knowledge of Python for network automation, data collection, or tooling development.

• Hands-on experience with redundancy validation, chaos testing, or network failover simulation.
• Familiarity with multi-cloud networking and hybrid-connectivity architectures.
• Experience integrating network telemetry into performance and reliability dashboards.
• Experience collaborating with global carriers, IXPs, and data center providers.

Benefits

What we offer?

• CLT contract — enjoy job stability and reliable benefits that value your work
• Quarterly performance bonuses to reward your hard work and achievements
• Meal allowance paid into Caju card — R$100 per working day
• Extended parental leave - 180 days of maternity leave and 20 days of paternity leave.
• Health insurance with SulAmérica — 50% covered by the company
• Daycare allowance provided to mothers with children under 3 years old — R$500 per month per child
  
  

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.
• Work with a Talented Team: From the Board and the Founders to the Senior Management Team, you will collaborate daily with the most capable and renowned external advisors, and constantly being exposed to talented and driven individuals.
• Dynamic Work Environment: Thrive in a collaborative, fast-paced workplace where innovation is encouraged, and every contribution counts.
• Professional Development: Work alongside industry experts to enhance your skills and knowledge in a cutting-edge field.
• International Experience: Gain opportunities to work in different 1GLOBAL offices around the world as you grow within the company.
• Open Communication Culture: Join a team where your ideas are heard, and open dialogue is encouraged, fostering a supportive and transparent work environment.
• Get Things Done Attitude: Be part of a results-driven team that values efficiency, creativity, and the drive to make a tangible impact in the industry.

1GLOBAL is an equal opportunity employer, we value your character as much as your talent. Diversity drives our innovation, and we offer a collaborative, dynamic, and international work environment. We are excited for you to join our mission to revolutionise connectivity globally.