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Medior Mainstream Cloud Engineer

  • Hybrid
    • Sofia, Sofia, Bulgaria
  • Operations

Job description

Join Our AI-Powered Cloud Engineering Team

At Mainstream, we're building the next generation of cloud operations by combining deep cloud expertise with AI-powered automation and intelligent operations. We're looking for motivated Medior Cloud Engineers who are eager to thrive in an AI-powered cloud environment while working with modern cloud technologies and enterprise infrastructure.

As part of our Cloud Engineering team, you will support enterprise environments, monitor mission-critical systems, resolve operational incidents, and learn modern cloud technologies while helping our customers maintain secure, scalable and reliable cloud platforms.


What you'll do

  • Deploy, maintain and optimize cloud infrastructure

  • Monitor system health, performance, security and availability

  • Provide L2 support by troubleshooting and resolving infrastructure incidents

  • Automate infrastructure using IaC and configuration management tools

  • Work with Linux, virtualization, containers and cloud-native technologies

  • Collaborate with engineering teams to improve reliability, scalability and operational efficiency

  • Follow DevOps, incident management and security best practices

  • Continuously learn and contribute to cloud, automation and digital transformation initiatives

Job requirements

  • 3–5 years of experience in Cloud, Linux System Administration, Infrastructure or DevOps roles

  • Experience supporting production environments and resolving infrastructure incidents

  • Strong analytical thinking and structured troubleshooting approach

  • Strong communication skills and a collaborative mindset

  • Fluent English

Experience with some, not all, of the following technologies is expected:

  • Operating Systems: Linux administration (RHEL, Ubuntu and similar), including network, system and application services

  • Networking: TCP/IP, DNS, troubleshooting

  • Infrastructure & Virtualization: VMware and/or Citrix XenServer, Infrastructure as Code (Terraform preferred), Configuration Management (Ansible)

  • Automation & Scripting: Bash and/or Python scripting, CI/CD fundamentals, Jenkins (nice to have)

  • Containers & Cloud Native: Docker, Kubernetes

  • Databases & Web Technologies: Apache, Nginx, PHP-FPM, MySQL / MariaDB / Percona, PostgreSQL, MongoDB, Redis, Memcached

  • High Availability & Monitoring: HAProxy, Keepalived, Nagios, Zabbix, Grafana, Prometheus

What we value

  • Technical leadership and ownership

  • Knowledge sharing and mentoring

  • Curiosity and continuous learning

  • Customer-focused approach

  • Passion for automation and modern cloud technologies

Why join Mainstream?

  • Work alongside experienced engineers in enterprise infrastructure and virtualization

  • Gain hands-on experience with mission-critical environments and modern technologies

  • Grow in an AI-powered engineering organization where automation is part of everyday work

  • Access continuous learning, mentoring and professional development opportunities

  • Be part of a collaborative team that values curiosity, ownership and innovation

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