Senior Systems Engineer - Linux/OS

Verisure is a leading global provider of professionally monitored security solutions. We are an international company with a start-up mindset: fast, agile, lean, high-performing, and value-driven.

We are currently looking for an experienced Linux/OS Senior Systems Engineer to join our technical team in Madrid. This is an exciting opportunity to work in a highly technical environment where reliability, security, automation, and continuous improvement are at the heart of what we do.

In this role, you will help ensure the availability, security, and efficiency of our services through the administration, optimization, and automation of Linux systems. You will also play an important part in maintaining the high reliability and performance of our applications by:

• Ensuring compliance with defined quality criteria.
• Ensuring the effective use of automated deployment tools and maintaining up-to-date knowledge of related processes, documentation, and quality standards.
• Monitoring SLA compliance based on defined KPIs.

Responsibilities

As a Linux/OS Senior Systems Engineer, you will be a key part of the team responsible for maintaining and evolving our infrastructure. You will work across Linux, physical infrastructure, virtualization, automation, storage, and cloud technologies in an environment where technical expertise and new ideas are highly valued.

Your responsibilities will include:

• Administering physical servers end-to-end, including rack-mounted and blade servers, firmware and BIOS updates, component-level troubleshooting (RAID controllers, NICs, power supplies, memory), and coordination with hardware vendors regarding warranty and support cases.
• Administering and supporting Linux servers, with a focus on Red Hat Enterprise Linux (RHEL), including software installation, configuration, patching, performance tuning, and capacity management.
• Managing and monitoring enterprise storage solutions, including Pure Storage, NetApp, and Dell.
• Implementing and administering virtualization environments (VMware), including hypervisor management, resource allocation, and VM migrations with minimal impact.
• Developing automation scripts using Ansible, Python, and Shell to simplify and improve operational tasks, from OS provisioning to hardware inventory and health checks.
• Supporting and managing cloud services within the AWS ecosystem.
• Applying security best practices and implementing robust security measures across Linux systems.
• Systematically capturing and maintaining clear, comprehensive documentation of processes, procedures, and best practices to support consistency, knowledge sharing, and continuous improvement.
• Contributing to continuous improvement initiatives focused on resource optimization and infrastructure scalability.
• Responding to incidents and ensuring timely resolution.
• Participating in project deployments and helping ensure smooth execution.
• Monitoring system performance and service availability.
• Providing technical support and expertise to development teams.
• Participating in 24/7 support shifts as part of the team’s operational coverage.

Requirements

We are looking for someone with strong hands-on Linux and infrastructure experience who enjoys solving complex technical challenges and continuously improving the way things are done.

• Bachelor’s degree in Computer Engineering, Telecommunications, or equivalent proven professional experience.
• Fluency in English and Spanish.
• A minimum of 5 years of experience in Linux administration (RHEL), including:
  • Core server administration: installations, configuration, patching, performance monitoring, tuning, and capacity management.
  • Hands-on experience with physical server hardware, including installation, firmware/BIOS management, component diagnostics, and vendor coordination.
  • Experience migrating operating system and hardware versions with minimal impact.
• A minimum of 5 years of experience in virtualization and scripting. Experience migrating to VCF 9 is considered a plus.
• Experience with cloud environments, preferably AWS.
• Programming knowledge in Python.
• Knowledge of Terraform.
• Experience using version control tools such as GitHub.

Desirable requirements

It would be great if you also have:

• Experience working with Agile methodologies.
• Proficiency in Ansible.
• Knowledge of storage systems.
• Familiarity with Jira and Confluence.

Key competencies

Beyond the technical skills, we are looking for someone who enjoys working collaboratively, takes ownership, and is motivated by building reliable and scalable solutions.

You should demonstrate:

• Strong analytical skills and the ability to diagnose and resolve technical issues effectively.
• A collaborative mindset and the ability to work effectively within cross-functional teams.
• A critical eye for service quality, with a drive to identify and implement improvements.
• A high level of autonomy and proactivity in day-to-day tasks.
• Curiosity and enthusiasm for emerging technologies and continuous learning.
• A genuine interest in technical subjects and infrastructure innovation.
• Excellent problem-solving capabilities, combined with a strong focus on teamwork and a results-oriented mindset.
• Clear and effective communication skills, with a strong sense of collaboration.

Location

The role is based in Madrid.

What Verisure will offer you

At Verisure, you will join an international environment where you can work with experienced colleagues, contribute to meaningful technical projects, and continue developing your skills.

• Hybrid working model - Enjoy the flexibility of working from home while also collaborating with colleagues at our Madrid offices in Pozuelo de Alarcón (El Barrial - Centro Comercial).
• Lunch included at our canteen - Your daily meal is covered whenever you are working from the office.
• Dynamic and vibrant environment - Our open-plan office gives you plenty of opportunities to connect, collaborate, and exchange ideas with talented professionals across different teams and levels.
• International stakeholder projects - Work in a truly international environment and collaborate with colleagues and stakeholders across markets.
• Regular team-building activities - Because great teamwork should also be fun.
• Learning and training programs to support your continued development.
• Career development opportunities in a growing international organization.

Strong fit with our Company DNA

• Passionate in Everything We Do: Our people have a sense of energy that is unmistakable, one that drives us to delight our customers and focus on creating impact quickly.
• Committed to Making a Difference: When we say we will do something; we deliver with excellence. We are accountable, focused and operate with discipline.
• Always Innovating: We believe that Innovation can be big or small; it’s a continuous state of mind that inspires us to think differently and always make things better.
• Winning as a Team: Our people know that by leveraging one another’s strengths, investing in and developing our team’s capability and by collaborating well, we will win.
• With Trust & Responsibility: Operating with integrity is core to our success. We are humble, honest and value deep mastery and expertise. We do the right thing, always.

Apply today!

Verisure Innovation is an equal-opportunity employer and welcomes applicants from diverse backgrounds. We are an international company with offices and colleagues in multiple countries.

If you have questions regarding this position, please reach out to our Group TA Specialist, Lucas Stenberg, at [email protected]

About Verisure

Verisure is the leading provider of professionally monitored security services in Europe and Latin America. As of 31 December 2025, Verisure provides premium monitored alarm services to a portfolio of 6.2 million families and small businesses across 18 countries, with a team of more than 30,000 colleagues.

For the year ended 31 December 2025, Verisure delivered a strong financial performance: Total Revenue of €3,745 million, Adjusted EBITDA of €1,708 million (46% margin) and Adjusted EBIT of €953 million (25% margin). This performance builds on the Company’s track record of resilient, uninterrupted growth over the long-term and highlights the strength of its recurring revenue model.

Verisure is majority owned by Hellman & Friedman LLC, a leading private equity investment firm.

Beginning October 8th 2025, Verisure is listed in the Nasdaq Stockholm Stock Exchange. With €3.1 billion raised in primary proceeds, this was the largest IPO in Europe since 2022 and the largest in Sweden in over 25 years.