Senior Sysadmin

Publishing, media, mobile, advertisement, technology, Barcelona, start-up: all-in-one!

Job details

  • Full-time
  • map markerBarcelona, ES
  • globeRelocation paid
  • cardRequires Work Permit
    Requires that you're a citizen or have a valid work permit / visa sponsorship to work in the country in which this position is based.
  • routeSenior
  • routeRequired language: English

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We are Marfeel, one of the hottest European start-up companies, and we are looking for a highly energetic and passionate Senior Sysadmin to be part of the Marfeel Revolution. Our headquarters are based in sunny Barcelona and our office has a huge terrace to enjoy!

This is you:

  • You are a methodical type of person and "Doer" is your middle name
  • Your friends tell you that you can't leave anything undone and quality is your priority
  • You feel like you have a mission, not just a series of tasks task
  • You love new things and you can take or come up with a high-level idea and run with it
  • You're always curious about what’s out there in the open-source world
  • You know the importance of being part of a universe where all the departments need each other and work together for a mutual goal
  • You can communicate with technical and non-technical people alike to show both technical and functional command of what you are doing
  • You are motivated and excited by solving tech challenges and contributing to a team in a truly cutting-edge environment
  • You care about online news and user experience
  • You are definitely a technology enthusiast
  • You are an international team player
  • You're eternally curious and hungry for knowledge
  • You have lots of stamina and you get bored if you don't have anything to do
  • You are hands-on and proactive

If this sounds like you and you are up for the challenge, sit down and let us introduce Marfeel to you: 

As a Senior Sysadmin you will be responsible for giving solutions to the internal day-to-day tasks by being an active actor within the Operations team. You will manage our cloud infrastructure, build-server farms, provide environment updates, monitor alerts and give support to occasional help-desk tasks.

More specifically, you will be responsible for our infrastructure that supports more than 80 deployments every day including:

  • Elasticsearch cluster with ingest rate of 1 TB/day
  • Jenkins Dockerized Pipelines with 7 nodes with Master/Slave architecture
  • CDN using Varnish with an Origin/Shield architecture completely managed through Ansible
  • AWS & GCP cloud infrastructure supporting 600 million visits/month
  • Mongo replicaset with 30K reqs/s

We have 600 million visits, over 2 billion page views and we are scaling with the minimum number of servers possible. Challenge accepted? 

Main requirements

  • At least 5 years of experience managing high traffic web infrastructures
  • Complete understanding of container technologies and how to apply to reduce DevEx complexity following the DevOps practices (Kubernetes) 
  • Understand the challenges of deploying large applications in the cloud and having experience in various cloud providers
  • Experience in applying software engineering to Infrastructure-As-Code projects
  • The ability to write scripts to speed up and simplify system maintenance processes (BASH, Python, Perl, etc.)
  • A feeling of being at home with web, proxy and application servers (Apache, Nginx, Varnish, HAProxy, Jetty, Tomcat, etc.)
  • Used to managing services with orchestration tools (Ansible, Saltstack, Chef, Puppet, Terraform, etc.)
  • Hands-on experience on NoSQL solutions (ElasticSearch, MongoDB, Prometheus, etc.)
  • Experience managing deployment technologies (Jenkins-ci, Travis-ci, GitLab, etc.)
  • Agile methodologies and Continuous Integration workflows 


  • Talented, international and multicultural team (more than 27 nationalities and more than 8 languages). You will not get lost in translation
  • Flexible working hours
  • Free coffee, tea, juices and soft drinks
  • Sunny office terrace
  • Ping-pong, Mario Kart and foosball tournaments
  • Free language and yoga classes
  • Team building events
  • Training, books and all you need to feel the empowerment
  • Beach: 30 minutes walking
  • Transport, restaurant and kindergarten tickets
  • And, Referral Bonus if you bring other talented people like you 

Apply now

Sign up to apply

Or sign up to refer and earn a reward of €300