We’re looking for a Systems Administrator with hands-on, commercial experience in managing production systems. Someone who’s passionate about reliability, automation, and 24/7 operations.This role combines standard Systems Administrator responsibilities with participation in a 1st-line on-call rotation, including night and public-holiday coverage as part of the team’s support schedule. Most of the time, you’ll be working on Systems Administrator responsibilities.You’ll work with AWS-based and (rarely) on-prem environments, take part in incident handling across support lines, and help maintain highly available systems used by clients worldwide.Responsibilities:Systems Administration Managing and maintaining production systems for our clients – primarily in AWS, but also in traditional on-prem environments. Automating daily operations and system administration tasks. Monitoring, analyzing, and improving performance, availability, and scalability. Troubleshooting incidents and problems within support lines, for systems operating 24/7.  Supporting development teams in CI/CD pipelines and secure deployments. Participating in architecture design and building new services from the ground up. Creating and maintaining technical documentation. 1st Line & On-Call Support Processing and handling incoming Service Desk requests from application users across our client-deployed platforms. Reproducing user-reported issues, searching for root causes, and escalating when needed. Cooperating with the 2nd and 3rd line support teams. Monitoring applications and user feedback (e.g., store comments). Participating in shift work and on-call duties, including nights and public holidays. Requirements: Minimum 2 years of commercial experience in system administration (Linux or Windows Server, Windows 365). At least 1 year of practical experience with relational databases (PostgreSQL, MySQL, or MS SQL). Practical experience maintaining high-availability systems running 24/7. Scripting skills (Python or Bash). Comfortable working in English (both written and spoken). Availability to participate in on-call rotations and work during night hours. Strong communication and collaboration skills. Nice to have: Hands-on experience with AWS in production environments. Experience in similar support or Service Desk roles. Familiarity with video streaming/distribution workflows (OTT). Knowledge of containerization (especially Kubernetes). Networking and security background. Experience with Atlassian stack (Jira, Confluence). Knowledge of monitoring/observability tools. Infrastructure as Code (Terraform, Ansible, CloudFormation). Technical degree in computer science or related fields. What you’ll get in return: fully remote work with flexible working hours MyBenefit platform funds (that you can use to buy a MultiSport card or other cool services) a choice to join our group health insurance access the wellbeing platform Mindgram that helps you stay in a good mental shape access to the language learning platform Tutlo company-wide quarterly meetings (which are special, because you don’t have to work on that day) optional (bun fun!) team activities, like joint mountain trekking trips, St. Nicolas Day event for kids, board game nights, and more. a welcoming office in the very heart of Poznań, if you prefer to work on-site. If you’d like to join our team, leave your CV below. We’d be happy to get in touch with you!Recruitment process: Interview with People Operations Specialist - a 30-minute online meeting to get to know each other better, Interview with the Team Leader, DevOps and People Operations Specialist - a more in-depth conversation about the role and mutual expectations, lasting about 1 hour, Final decision. You can count on our feedback after each stage to ensure the process is as transparent and valuable as possible.