Senior 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 Senior 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:

• Design, implement and optimize cloud infrastructure and platform architecture
• Lead complex infrastructure projects and technical improvements
• Provide L3 support by troubleshooting complex infrastructure incidents and performing root cause analysis
• Drive automation using Infrastructure as Code and configuration management tools
• Collaborate with engineering teams to improve reliability, scalability and operational efficiency
• Define and promote DevOps, incident management and security best practices
• Create and maintain technical architecture documentation, operational procedures and runbooks
• Lead knowledge transfer sessions, mentor engineers and support technical growth across the team
• Continuously drive cloud, automation and digital transformation initiatives

Job requirements:

• 7+ years of experience in Cloud, Linux System Administration, Infrastructure or DevOps roles
• Experience designing, implementing and supporting enterprise production environments
• Experience leading technical initiatives and mentoring engineers
• 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 AI, 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