Mainstream

Medior Mainstream Cloud Engineer

Mainstream  •  Sofia, BG (Onsite)  •  1 day ago
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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

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

Mainstream

About Mainstream

Mainstream is a forward-thinking technology company with its focus 100% on the cloud. We embraced the cloud back in 2005 and never looked back. Since then, we have grown in multiple directions, in many ways – building the largest team of cloud experts in the SEE region and a data centre ecosystem that spans six countries in Europe. Most importantly, we have built long-lasting relationships with 200+ customers region-wide.

Combined with our multi-cloud knowledge, our state-of-the-art HA infrastructure provides our enterprise clients with a turnkey solution for their digital projects. Whether that be Cloud Hosting, Infrastructure as a Service (IaaS), Application Development and Migration, Backup, and Disaster Recovery, Mainstream can help you eliminate complexity to make the most from your cloud investment.

We support all major public cloud platforms (Microsoft Azure, Amazon Web Services, Google Cloud) and deliver the highest level of performance with our Mainstream Enterprise and Managed Hosting platforms. What truly makes us different, though, is our value-first approach to cloud computing. We design and implement client-specific solutions to ensure you get maximum value from the cloud. Rather than purely implement, we strategize. Our experts dig deep into our clients' IT environments, identifying the weak spots, as well as opportunities, and designing custom solutions to address them.

From IT infrastructure optimization to cloud management, our enterprise infrastructure, cloud expertise and solutions ensure growth – now and in the future.

Industry
IT & Software
Company Size
51-200 employees
Headquarters
Belgrade, RS
Year Founded
2005
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