Junior Mainstream Cloud Engineer

Join Our AI-Powered Cloud Engineering Team

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

As part of our Cloud Engineering team, you will support enterprise infrastructure, monitor mission-critical systems, resolve operational incidents, and develop your technical skills while helping our customers maintain secure, scalable and reliable platforms.

What you'll do

• Monitor infrastructure, system health, performance, security and availability
• Provide L1 operational support by responding to alerts and resolving standard infrastructure incidents
• Escalate complex issues to higher support levels when required
• Perform routine operational tasks, health checks and maintenance activities
• Assist with deployments, patching and basic system administration
• Follow operational procedures, incident management and security best practices
• Maintain operational documentation and runbooks
• Continuously learn and contribute to automation and digital transformation initiatives

• 0–2 years of experience in IT Operations, System Administration, Infrastructure, or a relevant technical education
• Basic understanding of Linux, networking and virtualization concepts
• Analytical thinking and willingness to learn
• Good communication skills and a collaborative mindset
• Endless curiosity
• Fluent English, Fluent Bulgarian

Why join Mainstream?

• Work alongside experienced engineers in enterprise infrastructure and virtualization
• Gain hands-on experience with mission-critical environments and modern technologies
• Learn 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