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.

Requirements

About You

Must Have

• 5+ years in DevOps, infrastructure or platform engineering, including ownership of production systems and on-call.
• Solid fundamentals in compute, networking and storage, and you're at home on Linux.
• You write design docs, reason about trade-offs, and mentor other engineers.
• Fluent English, written and spoken. Please send your CV in English.
• Linux administration in depth (RHEL or similar): troubleshooting, performance tuning, patching, hardening.
• Administration of self-managed databases such as MySQL or PostgreSQL: backup and restore, replication, upgrades, performance tuning.
• Networking and storage in depth: TCP/IP, routing, firewalls, block and file storage, LVM/RAID.
• Ansible at scale.
• VMware or OpenStack in production.
• VPNs: site-to-site IPsec and client VPN.
• Bash and Python.

Nice to Have

• Packer, and Terraform as a provisioner
• Self-hosted GitLab administration
• Nexus or other artifact repositories
• Ceph or other distributed storage
• SDN
• Docker and container runtimes

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
• Health insurance with SulAmérica — 50% covered by the company
• Extended parental leave — 180 days of maternity leave and 20 days of paternity leave.
• 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 50% 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.