In-House Network Technician, global datacenter.

Xiris Group AB; Stockholms kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Xiris Group AB i Stockholm söker en driven nätverks- och systemsingenjör som kan designa och driva den infrastruktur som GPU-flottan bygger på. Du ansvarar för nätverk, operativsystem och hårdvara i flera datacenter, och du får äga end-to-end-lösningar.

Du har erfarenhet av stora nätverksmiljöer, Linux i produktion och distribuera system över flera datacenter. Rollen kräver byggarsinne och förmåga att leda projekt från grunden samt kontinuerligt lära dig i en snabbt utvecklande miljö.

Qualifications

• Designa och drift av nätverksmiljöer i flera datacenters och stora distribuerade system.
• Kunnig i Linux-servrar i stor skala samt OS-livscykel och konfiguration.
• Förståelse för lagring, IO och genomströmning samt serverhårdvara (GPU, RAM).

Responsibilities

• Designa och underhålla nätverksmiljö: topologi, VLAN, BGP, DNS/DHCP, ACLs.
• Driva driftsmiljö: övervakning, prestandaoptimering, incidenthantering.
• Driva säkerhet i linje med ISO 27001: åtkomstkontroller, ändringshantering, tillgångshantering.
• Utöka och hårdvara infrastrukturen när fleeten växer över datacenter.
• Automatisera provisionering och repetitiva operationer.
• Underhålla runbooks och nätverksdiagram för teamet.

Skills

Networking

Linux

Distributed systems

Storage

Security

Job description

Xiris Group AB

Kommun: Stockholm

We build and run the GPU infrastructure behind MIRS™: our own proprietary, ultra-low latency data transfer technology that runs the heavy compute on our GPUs and delivers any app to any device. Unlike ordinary one-way data transfer, MIRS is two-way and interactive: anything you see or hear, you can act on in real time. One GPU serves many devices, and the experience feels local even though it runs in our data centers.

This role builds and operates the GPU backbone all of that depends on. This is an opportunity to own and shape the network and systems layer as we scale across regions, keeping the fleet fast, connected, and growing smoothly. The work is mostly office-based, with occasional trips to our data centers. You will have real ownership, room to shape how it is built, and a small, capable team around you to build it with. If you like greenfield work at real scale, this is a rare chance to help write how a platform like this runs.

2. Mission

Own and run the networking, systems, and infrastructure backbone of the entire GPU fleet across our data centers. You keep it fast, connected, secure, and always scaling, end to end.

3. Responsibilities

1. Design and maintain the network environment: network topology and protocols, switch configuration, VLANs, IP schemes, dynamic routing (BGP), DNS/DHCP, and ACLs.

2. Operate the fleet's network-booted, diskless environment: PXE/iPXE/UEFI HTTP boot, network-root images, and overlay filesystems.

3. Build and maintain the OS images the fleet boots from: kernel and configuration, patching, and full image lifecycle.

4. Run daily operations: monitoring, performance and capacity tuning, incident response, and root-cause troubleshooting across network, OS, and hardware.

5. Apply security controls in line with ISO 27001: access control, change management, asset management, and hardening.

Build (projects)

6. Extend and harden the infrastructure as the fleet scales across data centers (high availability, capacity, performance).

7. Automate provisioning and repetitive operations.

8. Keep runbooks and network diagrams current so the whole team can operate the system.

4. Required Experience

You have designed and operated real network environments and large, distributed infrastructure across multiple data centers, and you are ready for a bigger canvas. Core areas:

Areas and Requirements

Networking

Data center networking experience: design and operation of network environments, switch configuration, VLANs, dynamic routing (BGP), DNS/DHCP, ACLs, bonding, and packet-level troubleshooting.

Operating systems

Proven experience maintaining and operating Linux servers at scale: OS lifecycle, patching, configuration, and troubleshooting.

Distributed systems

Hands-on with large distributed systems across multiple data centers, ideally multi-continental.

Storage

Deep storage knowledge: filesystems, IO and throughput tuning, capacity and reliability.

Solid understanding of server hardware: GPUs, memory/RAM, and bare-metal components.

Security

Security practices in line with ISO 27001 and their operational implementation.

It will be beneficial in this role if you also know:

GPU clusters, HPC, or large bare-metal farms.

Colocation and data-center operations.

6. Profile and Working Style

This is a broad, hands-on role with real ownership. The person who thrives here:

Sees the whole stack: network layers and how the systems inside a single server type work together.

Has a builder's mindset and is comfortable standing up new projects from the ground up.

Keeps learning fast as the platform and environment evolve.

Ranges across networking, operating systems, storage, and hardware, never boxed into a single track.

Takes problems end to end and owns the outcome.

Krav

• Nätverkstekniker - erfarenhet efterfrågas

Krav

• B