Systems & Automation Engineer

You will join our System Administration team and work directly with the infrastructure behind Mixvoip’s services. Your foundation should be System Administration. You should be comfortable working with Linux systems, understanding networks, troubleshooting problems, deploying services, and taking responsibility for production infrastructure. What makes this role different from a traditional System Administrator position is how we want you to approach the work. We believe AI-assisted development is changing what System Administrators can build and automate themselves. You do not need to be an experienced software developer, but you should be interested in using AI, scripting, APIs, and automation to solve operational problems. If you repeatedly perform the same task manually, we want you to think about whether it could be automated. If information has to be copied between two systems, we want you to consider whether an API integration could do it. If troubleshooting requires collecting information from five different places, we want you to think about whether a small internal tool could make that easier. You might spend part of your day troubleshooting Linux, virtualization, storage, or networking issues and another part building a Python script with the help of AI, improving our SaltStack configuration, integrating an API, or automating an operational workflow. You don’t need to arrive as a developer. You should, however, be willing to become increasingly comfortable building tools that make you and the rest of the team more efficient. A rotating on-call responsibility is part of the role., * Operate and maintain Linux-based production infrastructure

• Troubleshoot Linux, virtualization, storage, networking, and application-related issues
• Work with technologies such as Proxmox, Ceph, SaltStack, monitoring systems, and internal infrastructure services
• Participate in infrastructure changes, upgrades, migrations, and incident handling
• Automate repetitive System Administration tasks
• Use AI-assisted development tools to create scripts and small internal tools
• Work with APIs to integrate systems and automate operational workflows
• Improve existing configuration management and automation
• Identify manual processes that can be simplified or eliminated
• Improve monitoring, alerting, diagnostics, and operational visibility
• Document systems, procedures, and automation
• Participate in the team’s rotating on-call responsibilities

• Basic to intermediate Linux System Administration knowledge
• Basic to intermediate networking knowledge
• Understanding of concepts such as DNS, TCP/IP, routing, firewalls, VLANs, and HTTP
• Comfortable troubleshooting technical problems instead of only following procedures
• Interest in scripting, automation, and building small technical solutions
• Interest in using AI tools to help you write, understand, debug, and improve code
• Willingness to work with APIs and structured data such as JSON
• Basic understanding of Git or willingness to learn it
• Ability to understand how different systems interact with each other
• Curiosity and willingness to learn unfamiliar technologies
• Ability to take ownership of operational problems, * Experience with Python or another programming language
• Understanding of basic software development principles
• Experience using AI coding assistants to build scripts, tools, or integrations
• Experience with Proxmox or other virtualization platforms
• Experience with Ceph or other distributed storage systems
• Experience with SaltStack, Ansible, Terraform, or similar automation tools
• Experience working with REST APIs
• Experience with Git, CI/CD, or automated testing
• Experience with Prometheus, Grafana, or other monitoring platforms
• Experience with Docker and containerized workloads
• Experience with Kubernetes or other container orchestration platforms
• Homelab, open-source, automation, or personal development projects

Why Mixvoip? Mixvoip offers a unique environment where engineers can truly shape technology - from architecture and automation to security and performance. Here, your ideas matter. We encourage experimentation, support personal growth, and invest in helping every team member become an expert in their craft.

A new way to apply: Join Mixvoip’s success story Join Mixvoip and you won’t just be connecting businesses to high-speed internet, fiber, satellite, phone, or mobile networks - you’ll be connecting people, forging relationships, and making a real difference in our story. So, if you’re prepared to embark on an engaging journey and play a pivotal role in Mixvoip’s saga, here’s an unconventional route to apply We invite you to record a brief video with your smartphone. Share why you’re drawn to this role or pose any questions or doubts you might have. It’s about keeping the conversation open and engaging! Please remember to attach your CV in PDF format too. Instead of a conventional motivational letter, we’d like you to employ an AI of your choice. This not only mirrors our technology-focused approach, but it also allows you to showcase your adaptability to new tools. It’s less about the letter, more about your interaction with AI that we’re keen on.

PS: Want to know who you’ll be journeying with? Meet me, Marcin Rzeczkowski I’ve been with Mixvoip for 14 years, and I still like being close to the technical reality of the company. I do not just want to discuss systems. I want to understand how they behave in production and why. Over the years, I’ve learned that reliability is rarely about one big change. It is usually the result of many small, correct decisions, plus clear thinking during incidents, clean execution, and teamwork that does not fall apart under pressure. I care a lot about collaboration and team spirit, and I also value autonomy. I like people who can take a problem, structure it, and move it forward without waiting to be pushed. Outside of work, I apply the same mindset to fitness and nutrition: discipline, consistency, and measurable progress.