DevOps Engineer - Foundations (ROOT)

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 DevOps department Our DevOps department has three teams. Each owns one layer of the platform: Foundations (ROOT): machines, operating systems, virtualisation, VPNs and databases. Cloud-Native Infra (CLOUD): cloud accounts, Kubernetes clusters, networking, identity and shared platform services. Developer Experience (DEVX): pipelines, GitOps, internal tooling, observability and APIs used by engineering teams every day.

About the Team ROOT runs the layer everything else sits on: on-prem machines, virtualisation, operating systems, VPNs and databases, including Oracle. We own: on-prem machines and the services on them, such as Nexus · VPNs · virtual machines and operating systems for core business systems · operating OpenStack, together with our infrastructure operations team · GitLab upgrades and maintenance · database administration: self-managed databases and clusters such as MySQL, and the Oracle database. We don't own: Kubernetes clusters, cloud networking, platform services and managed database services such as RDS (CLOUD) · pipelines and developer tooling (DEVX).

Your first 6 months Tune and optimise the performance of our MySQL databases. Upgrade systems to the latest supported version. Automated regular patching for VM’s & EC2 instances.

About the Role Administer our self-managed databases and the cloud-hosted Oracle database for BRM: backups, replication, upgrades and performance. Run and patch Linux VMs and on-prem machines. Build VM images with Packer and manage configuration with Ansible. Operate site-to-site and client VPNs. Operate OpenStack together with our infrastructure operations team. Upgrade and maintain our self-hosted GitLab.