Hi, I’m Lazar.
I work in environments where reliability matters. My background is rooted in IT infrastructure and managed services, with over 6 years of experience in Windows and Linux server environments, networking, and security.
Alongside infrastructure, I actively build web applications using React, Next.js, Vue, and Node.js/PostgreSQL, combining system administration with modern software development, Docker containerization, and Infrastructure as Code with Terraform.
Experience
- • Administration and maintenance of Hyper-V-based Windows server infrastructure and Linux systems for business customers.
- • Administration and setup of Linux web and database servers.
- • Writing Bash and PowerShell scripts to automate routine system tasks and deployments.
- • Managing Docker containers for hosting applications and internal services.
- • Management of Windows server environments including file servers, terminal servers, and related systems.
- • Administration of firewall solutions such as Lancom and Sophos, as well as Veeam backup and recovery systems and IP telephony.
- • Administration of Microsoft 365 environments, including Exchange Online, Teams, SharePoint, and OneDrive.
- • Administration of Microsoft Azure and Entra ID, including identity, access, and user management.
- • Daily analysis and resolution of more complex technical incidents in productive customer environments.
- • Direct communication and technical support for business users, primarily in German.
- • Freelance development of full-stack web applications using modern JavaScript/TypeScript frameworks.
- • Design and implementation of responsive frontend interfaces based on React, Vue, and Next.js.
- • Development and integration of RESTful APIs, backend services, and PostgreSQL databases.
- • Deployment and maintenance of Docker-based Linux environments for development and production use.
- • Setting up automated CI/CD pipelines (GitHub Actions) for seamless application deployment.
- • Provisioning and management of hosting infrastructure on Hetzner and AWS.
- • Ongoing expansion of expertise in automation and Infrastructure as Code, with a focus on Terraform.
About me
My name is Lazar Vujović, I am 32 years old, and I live in Serbia. I hold a Bachelor of Applied Sciences degree in Business Informatics from the Business School of Applied Sciences. Earlier in my education, I also spent time in Vienna studying Computer Science at the Technical University of Vienna, which was a valuable experience that helped me master the German language and adapt to Western business culture.
Currently, I work for the German company ITM GmbH as a System & Network Administrator. My core responsibilities include managing Windows (Hyper-V) and Linux server environments, handling Linux web/database servers, automating tasks with Bash and PowerShell, and managing Dockerized services. I also administer firewall systems (Sophos, Lancom), Veeam backups, IP telephony, and Microsoft 365 / Azure / Entra ID ecosystems, alongside providing Tier 2/3 technical support directly in German.
Alongside my primary job, I work as a freelance web application developer. I build applications using modern JavaScript/TypeScript frameworks like React, Vue, and Next.js, backed by PostgreSQL. I deploy and maintain these systems on Docker-based Linux infrastructure across Hetzner and AWS, while actively implementing Infrastructure as Code with Terraform.