Senior Linux Engineer – Global Infrastructure

At i3D.net, we provide world-class global coverage with one of the most interconnected networks in the world. Our solutions focus on low latency, zero packet loss, and unmatched scalability, enabling seamless experiences for millions of users worldwide. With dedicated support, bespoke solutions, and cutting-edge technology, we deliver reliable, cost-efficient infrastructure that empowers game developers and businesses to scale effortlessly. Partnering with major names like Nvidia, DuckDuckGo, Discord, and Ubisoft, we are shaping the future of gaming and network technology.

Why your role matters

As a Senior Linux Systems Engineer at i3D.net, you’ll play a key role in running and evolving the Linux infrastructure that powers both our global hosting platform and our internal services. We’re a bare-metal-first company, but we also run virtual machines, containerized workloads, and Kubernetes clusters.

You’ll work across legacy and modern systems: tuning performance, managing storage, building automation, and gradually replacing older infrastructure with maintainable, scalable solutions. Whether it’s internal build systems, customer-facing compute, or distributed storage: your expertise keeps it all running smoothly.

Key Responsibilities

• Run Linux at Scale: Design, deploy, and maintain Linux systems across bare-metal, virtualized, and containerized environments.

• Engineer Storage Solutions: Build and support fast, resilient storage using Ceph, VAST or other technologies, supporting both internal tools and global workloads.

• Support Mixed Workloads: Operate a diverse estate that includes high performance bare-metal servers, traditional VMs, modern Kubernetes clusters, and container-optimized platforms.

• Modernize Infrastructure: Identify legacy bottlenecks and refactor them into automated, secure, and observable systems using Infrastructure as Code methodologies and tools like Ansible and Terraform.

• Debug Deep Issues: Solve complex performance and stability problems across OS, hardware, and platform layers.

• Improve Observability & Security: Strengthen monitoring with Prometheus/Grafana and apply hardened configurations, secrets management, and access control.

• Support Internal Stakeholders: Provide reliable infrastructure for internal product teams, CI pipelines, and platform tooling.

• Mentor & Document: Guide peers, contribute to documentation, and foster a culture of continuous development, best practices evolution and personal growth across the team.

Tech stack

At i3D.net, you’ll work with:

• Languages: Golang (primary), PHP (legacy)

• Infrastructure: Debian, Docker, Kubernetes, Ansible, AWX, Terraform, Github pipelines and runners, ArgoCD

• Storage: Ceph, VAST

• Observability: Nagios, Prometheus, LibreNMS,

• Hardware: Juniper, Dell, Supermicro, HPe, Redfish protocol, OpenManage

• Data & Databases: MariaDB, Postgres, Redis/Keydb, Opensearch, Graylog

• Practices: CI/CD pipelines, Agile methodologies, SRE mindset and resilience-based engineering - we follow a "you build it, you deploy it, you maintain it" philosophy

What success looks like in the first year

• You've stabilized and improved core Linux systems across bare metal, VMs, and Kubernetes systems sustainably as part of a product team

• Legacy infrastructure has been either sustainably modernized or safely decommissioned

• Internal services run more reliably, with fewer manual interventions and clearer ownership.

• You’ve made storage setups more scalable and resilient.

• The team benefits from your documentation, mentorship, and deep technical expertise

About you

• Linux Pro: 4+ years managing Linux systems in bare-metal and hybrid environments. You understand performance tuning, system internals, and hardware-level interactions.

• Storage & Compute: Hands-on experience with storage technologies like Ceph, VAST, S3-like object storage, Block storage (NFS / NVMe over TCP) and virtualization platforms like VMware and Proxmox.

• Modernization Mindset: Comfortable modernizing in legacy environments - and improving them through sustainable automation, structure, and observability.

• Automation-First: Fluent in Ansible and Terraform. You build reproducible, clean configurations that scale.

• VMs and Containers: Confident managing virtual machines, containers, and Kubernetes clusters necessary for a system or application

• Troubleshooting Expert: Skilled at diagnosing tough issues across hardware, network, OS, and middleware. You understand how systems interact with each other using APIs

• Security & Monitoring: You’ve implemented secure configurations and built resilience into pipelines for large distributed systems.

• Collaborative: You mentor others, share knowledge openly, and enjoy working in a high-trust team environment.

• Hybrid set-up & Location: This is a hybrid role based in Rotterdam. We're in the office two days a week, so we're looking for someone already living in the Netherlands.

Why join i3D?

• Global Impact: Help build and operate our internal platform on our own hardware, deployed across multiple data centers worldwide, with a focus on performance, scalability, and reliability.

• Innovation at Scale: Drive the orchestration and automation of our bare-metal platform, ensuring full control, scalability, and high performance across global deployments.

• Hybrid Work Setup: Enjoy the flexibility of a hybrid role with a work-from-home budget and top-tier tools.

• Career Growth: Access to education reimbursement, career guidance, and opportunities to upskill.

• Competitive Perks: Annual bonus, 25 vacation days (excluding national holidays), travel allowance, and a solid pension plan.

• Stay Active: Free access to our in-house gym in Rotterdam.

• Free Games: Enjoy lifetime access to Ubisoft’s game library