Arsys is a leading Spanish provider of cloud computing and web hosting services, managing over 1.5 million services for more than 260,000 clients. Founded in 1996, the company has established itself as a key player in the European digital infrastructure market, offering solutions ranging from domain registration to complex managed cloud environments. Headquartered in Logroño, Arsys maintains a strong presence across Spain with additional offices in Madrid and Barcelona. Since its acquisition by the United Internet Group (IONOS) in 2013, the company has integrated into a global network, making it an attractive destination for international tech talent seeking roles in system administration, software engineering, and cloud operations within a stable, established corporate environment.

Founded in 1996 in Logroño, Arsys became a pioneer in the Spanish internet market. In 2013, it was acquired by United Internet (IONOS), further expanding its reach and resources across Europe.

Senior Linux Systems Engineer

Arsys

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We offer you the opportunity to join the leading Spanish company in the IT sector, with more than 25 years of experience and one of the most solid track records as a provider of technological solutions for companies.

We are a growing company with more than 400 employees and offices in Logroño, Madrid, Barcelona, Seville, Bilbao and Valencia.

Since August 2013, we have been part of the IONOS Group, Europe's leading digitalisation partner for small and medium-sized companies.

In short, we are a multicultural team that's passionate about technology, bringing our professional experience from over a dozen countries: Germany, Argentina, Spain, the United States, France, the Philippines, Italy, Poland, Portugal, the United Kingdom, Romania...

About the role

We are looking for a Senior Linux Systems Engineer to join the infrastructure team supporting Cronon within the IONOS Group.

This role focuses on operating and improving Linux-based infrastructure environments used by enterprise customers. You will work closely with the systems engineering team responsible for maintaining and evolving the platform infrastructure.

The position is hands-on and operational, involving infrastructure management, troubleshooting and continuous improvement of existing environments. The team works in an international context where English is the main working language.

Responsibilities:

Operate and maintain Linux-based infrastructure environments
Troubleshoot and resolve complex system issues in production
Support and diagnose database-related issues involving MySQL, MariaDB and PostgreSQL
Manage and maintain virtualized environments based on VMware
Use configuration management and automation tools, mainly Ansible
Handle infrastructure support tickets and operational tasks
Contribute to system upgrades, maintenance activities and lifecycle management of platforms
Participate in infrastructure-related projects when required
Join daily team stand-ups and collaborate with international colleagues
Participate in a shared on-call rotation (approximately one week per month) together with a team of six engineers

What we are looking for:

We are looking for an experienced Linux engineer who is comfortable working in production environments and solving infrastructure issues independently.

Several years of experience administering Linux systems in production
Solid understanding of Linux system administration and troubleshooting
Experience working with Ansible or similar configuration management tools
Experience managing virtualized environments such as VMware
Experience troubleshooting databases such as MySQL, MariaDB or PostgreSQL
Comfortable working in English within an international engineering team

Nice to have:

Experience in hosting, managed services or infrastructure environments
Experience working with medium-sized infrastructures (tens or hundreds of servers)
Experience mentoring junior engineers or leading technical initiatives
German language skills

Why join us:

Work within the IONOS Group, one of Europe's leading cloud and hosting providers in an international and multicultural enviroment
Hands-on role with ownership of infrastructure platforms
Stable environment with technically interesting infrastructure challenges
Hybrid work in any of our offices located in Spain (Valencia, Alcobendas, Logroño, Barcelona or Sevilla)
Flexible compensation packages
Flexible working hours
Personalized training and development
Discounts on Arsys products
Discounts in tecnology, health and other well-known brands of products
Biannual team events