Senior DevOps Engineer

Simply more booking - that’s our mission! Halcyon Labs is a global hospitality software technology company which originated from Poznan, Poland (and that’s where our HQ is) in 2008 and keeps on growing ever since - spans across 5 continents, with over 3500 customers constantly improving their revenue streams thanks to our products. We deliver leading SaaS technology and marketing services to give hoteliers the tools to increase revenue performance, bookings and efficiency, and provide their consumers the best services and experiences. Now, we are looking for a DevOps/SysOps Engineer to join our Engineering team. Join a small, specialised team that’s responsible for the backbone of our products. Operating in a pretty complex environment (cloud + more than 200 VMs) you will develop, deploy and maintain the infrastructure, solutions, and processes that enable the delivery and support of our software. What comes with the job Remote-first collaboration model International technology and product projects Flexible project collaboration setup Planned service breaks aligned with contract terms Opportunity to collaborate with experienced product and technology teams Opportunity to access selected knowledge-sharing initiatives Contract terms: B2B , Monthly compensation range up to 26 400 ​PLN net per month depending on experience and scope of responsibilities. → Recruitment process Interview with Recruiter (30-40 minutes) Technical interview with Hiring Manager and teammate (90 minutes) Final conversation with the Engineering Director and Engineering Manager During the process we'll explore how you actually use AI in your daily work, how you approach ownership, product thinking and technical decisions. We're much more interested in your judgment than in perfect prompts.
Requirements:
What we're looking for in a collaborating partner Experience - At least 5 years of experience in a similar role (DevOps, SysOps, or Linux Administrator) within complex, distributed infrastructures. Linux & Containers - Proficiency in Linux, particularly Rocky Linux, alongside being comfortable working with Docker. Orchestration & GitOps - Fluent in Kubernetes and Helm, with practical experience working with FluxCD. Monitoring & Observability - Experience with infrastructure monitoring tools such as Zabbix, Grafana, QuestDB, and Prometheus. Automation & CI/CD - Proficient in using configuration management and automation tools like Ansible and Terraform, and experienced in creating automated deployments using GitLab CI. Web & Databases - Familiar with MariaDB administration and NGINX, plus proven ability to support infrastructure for applications written in PHP, Node.js, and/or Python. Scripting - Knowledge of at least one scripting language (e.g., Bash, Perl, Python, or Go). Cloud Platforms - 2+ years of experience working with cloud platforms such as DigitalOcean and AWS and/or GCP. Languages - Polish at a C1 level (fluent in both written and verbal communication) and English at a B2 level (good written and verbal communication skills). → Nice to have Data & Operations - Experience working with Rundeck, n8n, Clickhouse, ELK stack, Databricks, Dagster, Airflow, Airbyte, DataHub, and BigQuery. Security & Compliance - Familiarity with PCI-compliant infrastructures and security standards/tools related to system, application, and infrastructure protection. Tech stack Linux (Rocky Linux), Kubernetes, Helm, Docker, FluxCD, Ansible, Terraform, GitLab CI, Zabbix, Grafana, QuestDB, Prometheus, MariaDB, NGINX, DigitalOcean, AWS, GCP, Bash, Perl, Python, Node.js, PHP.
Must have: DevOps, kubernetes, Linux, Helm, CentOS, Docker, Zabbix, Grafana, Prometheus, Ansible, Terraform, GitLab, MariaDB, Nginx, Scripting language, Perl, Python, DigitalOcean, AWS Cloud, PHP
Nice to have: Node.js, rundeck, n8n, clickhouse, databricks
Daily tasks: - Collaborate with software development teams and support their releases, develop, and maintain CI/CD pipelines.
– Design and implement automated infrastructure.
– Maintain existing cloud infrastructure/VMs.
– Monitor the environment, analyse and solve problems if required.
– Utilise your understanding of the Software Development Life Cycle to proactively optimise and automate infrastructure and processes.