Senior System Administrator / SRE

Permanent employee, Full-time · Oficina Plaza España

About this role
About this role
We are looking for an experienced Senior Windows Administrator / SRE who can identify and implement IT infrastructure improvements, including virtualization, network, storage and Linux OS administration. The right candidate will be working within our Operations Team to deliver innovative solutions to real world problems that negatively impact our customers, the Senior Engineer will be responsible not only for the continuous improvement of our customers’ experience but also for the operational optimization of the infrastructure where our cloud platform is running,
You will
  • Windows System Administration: Manage and maintain Windows systems, ensuring optimal performance, security, and reliability.
  • Work to root cause and eliminate infrastructure downtime or performance issues in our cloud production platform.
  • Proficiency with Windows Server environments (2012-2022) and its main services.
  • Document, measure and report metrics over time such as performance, failures and version info.
  • Monitoring and Troubleshooting: Implement monitoring tools and proactively identify and resolve system issues.
  • Backup and Recovery: Develop and maintain backup and disaster recovery procedures.
  • Automation: Automate routine tasks and processes using scripting (e.g., Ansible, Bash) and configuration management tools.
  • Containerization: Create and manage containers for deploying applications and services
  • Log Management: Implement centralized logging and analysis for system and application logs.
  • Security: Implement and maintain security best practices to protect our systems and data.
  • Performance Tuning: Conduct performance analysis and optimization of Linux and Windows systems and applications.
Languages
High level of Spanish and English
What We Are Looking For
  • The ideal candidate will have expert-level skills and background in systems administration and engineering, understanding of the components of a cloud infrastructure including hardware platforms, OS, applications, databases, networks, web and application servers. Prior experience managing large-scale server infrastructure at a cloud computing or MSP setting is highly desirable. Strong Linux expertise is a must.
  • Proficiency with Windows Server environments (2012-2022) and its main services. Microsoft Certifications (MCP, MCSE) would be beneficial a s well.
  • Expert-level skills and experience with service troubleshooting in a production environment covering web front-end, Systems, Networks and
  • StorageConsider Infrastructure mainly as code and good expertise with technologies such as Ansible, Terraform.
  • Solid understanding of the OSI model is required; CCNA Switching certification is a plus.
  • Good Experience with network storage solutions (Ceph, NFS or similar).
What we offer
  • Hybrid remote model (50-50 per year). 2 days at home, 3 in the office. A healthy balance that gives you freedom while helping us build a strong team culture. (July, August and Christmas Holliday full remote)
  • Competitive salary: with a career path designed to help you grow.
  • Holidays. 23 days (workdays) per year + December 24 and 31 + your birthday (we want you to enjoy your day!)
  • Schedule. Flexible starting hour every day. Fridays, as well as July and August, come with reduced working hours so you can enjoy more free time.
  • Training budget. You’ll have €500 per year to invest in your professional development.
  • Private Medical Insurance.
  • Meal Card.
  • Our Space. A beautiful office overlooking Plaza España, right in the heart of Madrid and well connected to the entire city.
About us

Who exactly are we?

Our story is the one of a group of Cloud and technology enthusiasts who always had a clear goal: make things much easier for tech companies. Since no one was really stepping up to fill that gap in Spain’s Cloud sector, we figured—why not build our own product?

We started small, and now we’re over 130 people and still growing. Today, Jotelulu’s products are used in thousands of offices and businesses in retail, construction, industry, hospitality, transportation, and more, across over 8 countries in Europe and the Americas.

Every step we take is driven by the desire to do things better, bring something new, and shake things up—because that’s the only way innovation truly has meaning.


What are we up to these days?

After years of growing and iterating on our platform, we’re at a pivotal moment. Jotelulu powers products like Servers, Remote Desktop, DRaaS, File/Object Storage and our Marketplace—and we are moving fast towards a all-in-one platform for IT companies.

We grow 100% through channel and technical communities (sysadmins/MSPs/integrators). We are present across Spain, Portugal, France, and Mexico—new markets opening soon.


Life at Jotelulu

We’re passionate about technology, but we’re also a bit geeky — we love Star Wars, video games, 90s movies, and pop culture.

We work hard and with passion, but we also have a great time together. At Jotelulu, you’ll find a balance between work and fun, where teammates often become friends, and boredom is rare — there’s always something new, unexpected, and memorable happening.


Videos behind the scenes

Our own version of Nintendo NES.

Our own version of Nintendo NES

Watch video on YouTube


This is how we roll at events!

This is how we roll at events!

Watch video on YouTube


Our own event, the SUMMIT

Our own event, the SUMMIT

Watch video on YouTube


Who will you be working with?

You’ll be part of a team of over 130 people, but you’ll work especially closely with Data/Analytics, Platform/Infra, Product, GTM (Sales & Marketing), and Partner Success — true wizards at simplifying complex problems and making things happen.



What we offer?

An environment free of bureaucracy and corporate constraints; a culture where your opinion is highly valued and appreciated.

Flexibility: a great work-life balance.

An opportunity for personal and professional growth, supported by high functioning teams and the exciting challenges that come with joining a company at the start of its growth trajectory.

An inclusive and upbeat work environment: leave your suit behind... we’re a t-shirt and sneakers kind of place! More importantly, our company culture promotes diversity and inclusion. The personality and opinions of each of our team members are important and valid, and we aim to offer all employees a safe environment where they can be themselves and thrive.

Professional development

Health care: we hope you won't need it, but just in case, we provide you access to the best medical network.

Feedback and transparent culture: feedback is the breakfast of champions, and we take it seriously. We have a real-time and honest feedback culture, with monthly formal 1:1 sessions with your manager, a performance evaluation plan (with semestral evaluations) and monthly all-hands meetings to understand all the business information you need!


Ready? Don’t wait any longer and apply for this opportunity!

If you think you don't tick all the boxes but the project sounds interesting to you, we'd still love to hear from you.

We’re excited to discover what you’ll bring to the team.

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