System Administrator (Unix/Linux)

This position has been filled.

TenTwentyFour1024 is looking for a system administrator – juniors welcome! – to expand, maintain, and keep a watchful eye on our growing GNU/Linux based infrastructure.

Your role – Operations!
A selection of our books

Working in a team of developers and assisted by a fellow system administrator, you will be – or become – responsible for operations part of TenTwentyFour1024. Based at our offices in Esch-sur-Alzette/Luxembourg, you will assure the steady growth, health and well-being of our distributed GNU/Linux-based server infrastructure.

Working with configuration management and provisioning tools – think Puppet, Ansible, Consul – new systems will spin into place and be provisioned from your carefully crafted and tested manifests. You will be setting up Icinga2, collectd and graylog instances to monitor the systems' vitals and to make sure all systems are running smoothly.

As someone familiar with the DevOps approach, you will be assisting our development team in setting up continuous deployment pipelines and you will very likely be actively contributing new code and functionality to the FLOSS-tools you'll be working with.

As always, we're looking for team members dedicated to their work, even if they don't have an academic degree or countless years of experience. We believe that great talents have the ability to learn quickly and take advantage of new technologies. While experience can be acquired, passion, persistence and the will to learn and to succeed should be some of your strongest personality traits.

Although this is conceived as a full-time position, we're open to applicants preferring to work on a half-time schedule.

Your responsibilities

  • Manual and automated installation, provisioning and management of Unix systems in physical and virtualized environments
  • Configuration and optimization of high-availability set-ups in the cloud or on bare metal, dedicated hardware
  • Extending and improving on existing puppet modules and manifests
  • Controlling access and securing environments using iptables and squid
  • Monitoring vitals of our and our customers' systems using tools like icinga2, collectd, grafana and graylog
  • Setting up VPN tunnels using SSL-secured OpenVPN technology
  • Authoring and maintaining procedure and process documentation

Your strengths

You're a good fit for this job, if you…

  • …are able to learn quickly and not afraid to take initiative
  • …possess an ability to understand complex technical situations and enjoy to constantly discover new technologies and possibilities
  • …enjoy technical challenges and are not easily frustrated by the occasional failure
  • …have experience with – or a strong interest in – Free Software and Open Source technologies
  • …have a thorough understanding of Unix-based operating systems (GNU/Linux, *BSD) their set-up and configuration
  • …understand routing, natting and port-forwarding and are able to implement these using Unix utilities
  • …have some experience – or are looking forward to learning about – using monitoring solutions such as Icinga2 and time-series based databases
  • …prefer to sometimes shave a yak and automate repetitive tasks, rather than laboriously repeating the same steps over and over again
  • …have perfect written and spoken skills in English. Luxembourgish, French or German are considered an asset
  • …have a degree in a Computer-Science related field or not. Honestly, we don't actually care, just show us that you're awesome at what you do!

About TenTwentyFour1024

Founded in June 2013, TenTwentyFour1024 is a young technology company determined to deliver high-quality, user-friendly and thoroughly tested web applications. We strive to bring test-driven software development and *nix-based free/libre software solutions to our customers in and around Luxembourg. TenTwentyFour1024 is Information Technology Craftsmanship, nothing more, nothing less!

What we offer

Life at TenTwentyFour1024 is not all cakes and ale, we won't lie to you. But we're actively doing our best to make it a fun place to work at.

  • No dress code and flexible working hours
  • Attractive and varied opportunities for personal development and career advancement (On-the-job reading, paid conferences and trainings)
  • Opportunities for creativity and pet-projects
  • A free selection of more or less heavily caffeinated beverages – and the occasional after-work refreshment
  • A flat hierarchy as well as a lively and creative working environment
  • An equal vote in decision taking and the opportunity to shape the company's future
  • Professional development process (Agile methodologies, code review, version control, continuous integration, DevOps approach)

We'd love to get to know you, your skills and experiences and to learn about any projects in which you have collaborated. Please send your resume, as well as a cover letter to or post them by snail mail to:

TenTwentyFour S.à r.l.
1, place de l'Hôtel de Ville
L-4138 Esch-sur-Alzette