Linux SysAdmin

Porto, Portugal
Senior (4-6 Years)
Hybrid
English Required

What is this challenge about:

  • Build, deploy, and maintain infrastructure services and applications running on enterprise Linux platforms.
  • Automate infrastructure provisioning, configuration, and operational tasks using scripting and Infrastructure as Code (IaC) tools.
  • Monitor system performance, troubleshoot incidents, perform root cause analysis, and implement corrective and preventive actions.
  • Collaborate with architects, project managers, and cross-functional technical teams to deliver reliable and scalable infrastructure solutions.
  • Manage infrastructure configurations and automation code using version control systems such as Git.
  • Drive continuous improvement initiatives with a strong focus on automation, operational efficiency, and platform reliability.
  • Participate in an on-call rotation to support production environments and ensure service availability.

What we are looking for:

  • 5+ years of experience in Linux system administration, particularly with enterprise distributions such as RHEL, Oracle Linux, or Rocky Linux.
  • Working knowledge of Windows Server administration as a complementary skill.
  • Solid understanding of operating system fundamentals, including command-line administration, process management, file systems, permissions, and OS-level troubleshooting.
  • Experience with scripting and automation tools such as Bash/Shell, Terraform, Ansible, PowerShell, or similar.
  • Experience using version control systems such as Git (GitHub, GitLab, or equivalent) following modern collaboration and code management practices.
  • Good understanding of infrastructure technologies, including storage, virtualization, networking (TCP/IP, DNS, HTTP/HTTPS, firewalls), and Active Directory.
  • Familiarity with cloud computing concepts (IaaS, PaaS, SaaS) and practical experience with at least one major cloud platform (AWS, Azure, or Google Cloud Platform).
  • Strong troubleshooting and analytical skills, including incident investigation, root cause analysis, and problem resolution.
  • Ability to work effectively in cross-functional teams and communicate with technical and non-technical stakeholders.
  • Proactive mindset with a strong focus on automation, continuous improvement, and operational excellence.
  • Living in Porto (hybrid role).
  • Fluent level of English.

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What we offer:

  • A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
  • A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
  • An empowering and respectful work culture enriched with social and learning events.
  • A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.
At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.
Luis Caldeira, DevOps @ KWAN
At KWAN, I’m given the space to be myself and do what I love. I have control over the projects I work on, as well as the direction of my career.
Pedro Fonseca, Front End Developer @ KWAN
I see my People Experience Partner as someone who is always available to provide me with motivation and constant feedback, which helps me be sure that I am in the right place.
Josimar dos Reis, Software Developer @ KWAN
I know that I’ve contributed to the growth of a company that truly values a “people first culture”, because my ideas, experiences, and individuality were always appreciated.
João Nascimento, Software Developer (KWAN Alumni)
My two years at KWAN were an incredible experience! From the start, I was welcomed into a warm and collaborative environment where I felt truly supported.
Laís Ortiz, Software Developer @ (KWAN Alumni)
Grab this opportunity, apply now!

What You Can Expect as a KWANer

Respect isn’t optional here

You’re trusted to deliver and supported to speak up.

Dedicated People Experience Partner

Someone accountable for your growth, not your allocation.

Continuous learning, built in

Learning that keeps pace with the systems you build.

Recognition that’s visible

Your impact doesn’t go unnoticed. Through our Rocket Points System, we constantly recognize your contributions.

A culture you can feel

From movie and quiz nights to dinners and our annual summer gathering, we don’t just work together - we build real connections.

Flexible spaces to work your way

Remote-first, with physical hubs when you want connection.

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Tell Us About You

We review every application. If there’s alignment, we won’t let it get lost in a database.