Mainstream is the leading cloud provider in the region, with a network of over 8 data centers across Southeast Europe. With the largest team of cloud experts in the Balkans, Mainstream provides support to clients in all stages of cloud transformation, from assessment of readiness to move to the cloud and development of a cloud strategy to migration, management and optimization of public, hybrid and multi-cloud environments.
Partnerships with global cloud leaders such as Amazon Web Services and Microsoft Azure, as well as the regional Mainstream Cloud platform, provide a wide choice of cloud solutions that, combined with the certifications and collective experience of the Mainstream teams, strengthen the business of regional and foreign companies. Over the years, Mainstream has built a reputation as a cloud partner that "unlocks new business opportunities through technology" and has earned the trust of over 300 clients.
Now, we are looking for a System Engineer to strengthen our Managed Environment team.
Monitor the health, availability, and performance of infrastructure and cloud services (servers, virtual machines, databases, and networking components).
Respond to alerts, tickets, and incidents; troubleshoot issues and take corrective actions to restore services within defined SLAs.
Analyze monitoring alarms (including outside working hours when required) and escalate complex issues according to established procedures.
Perform server and service administration tasks across cloud environments.
Support implementation, configuration, and verification of infrastructure and cloud setups following approved designs and procedures.
Assist in coordinating and executing infrastructure and cloud changes in line with change management processes.
Utilize monitoring and logging tools to proactively identify potential issues and implement preventive measures.
Perform testing and validation of security mechanisms, backups, and recovery procedures.
Support incident resolution activities, including contributing to root cause analysis and preventive actions.
Assist with cloud migrations and integrations under guidance from senior engineers.
Apply security best practices and support compliance with internal and external standards.
Maintain and update technical documentation, runbooks, work procedures, and troubleshooting guides.
Proactively communicate with clients and internal stakeholders regarding incidents, changes, and service status.
Communicates with the customers on the status of the requests, collaborates with customers on resolutions when needed
Share knowledge with junior team members and support onboarding activities.
Track and record all work activities accurately in ticketing, monitoring, and time-tracking systems.
Stay informed about relevant infrastructure and cloud technologies and suggest operational improvements.
2-3 Years of relevant experience
Bachelor's Degree in relevant filed preferred
Strong knowledge in: VMware (vSphere/ESXi, vCenter), NSX, Veeam
Proven experience in virtualization, backup, and storage domains
Production troubleshooting + working with incidents/tickets
Knowledge of enterprise storage platforms / backup strategies
Learning agility with exceptional drive for development
Strong customer-facing communication (clear written updates, escalations)
Proactive problem solver
Team player
Continuous drive for innovation, automation and AI integration

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.