Medior Mainstream Cloud Engineer

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

• 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, Fluent Bulgarian

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