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