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Work Background
FISSenior DevOps
Nov. 2024Belgrade, Serbia
Wireless Media GroupDevOps Manager
Oct. 2021 - Nov. 2024Belgrade, Serbia➡️ Expanded the DevOps unit from five to eight professionals, nurturing an environment rich in continuous improvement and creativity, which boosted project completion rates by 25%.
➡️ Entrusted with the oversight of over 50 web portals, including several of Serbia's most trafficked websites, ensuring their optimal operation, enhanced security, and efficiency.
➡️ Engineered and deployed advanced IT frameworks using state-of-the-art technology like Linux, Docker, Ansible, IIS, and cloud platforms (AWS, Azure), achieving a 30% enhancement in portal performance through the development of a new server infrastructure.
➡️ Led the forefront in developing sophisticated IT infrastructure and strategically acquiring the necessary equipment, promoting technological progress while maintaining cost-effectiveness.
➡️ Managed the creation and implementation of CI/CD pipelines with Jenkins, TeamCity, and GitLab, streamlining the development process.
➡️ Worked closely with multidisciplinary teams to facilitate the flawless deployment and maintenance of web applications.
➡️ Upgraded system monitoring and alert mechanisms, significantly minimizing downtime and bolstering response efficiency.
Wireless Media GroupSenior System Administrator - People manager
Jul. 2019 - Oct. 2021Belgrade, SerbiaEarned promotion to Senior System Administrator / People manager role within just 18 months, due to outstanding performance and leadership.
➡️ Oversaw and ensured the reliability of critical server infrastructure (Windows, Linux) and web servers (Nginx, Apache, IIS), managing MSSQL databases effectively.
➡️ Led and developed a team of 5 system administrators, prioritizing both team and individual growth, and fostering a high-performance culture.
➡️ Collaborated closely with the DevOps team, streamlining deployment processes to significantly enhance the efficiency of our development-to-production pipeline.
➡️ Leveraged Docker and Ansible for the automation of deployment and configuration, markedly reducing manual tasks and increasing operational efficiency.
➡️ Enhanced system security through the implementation of sophisticated security protocols, markedly bolstering our security framework and minimizing risks.
➡️ Directed successful IT infrastructure projects, utilizing VMware, Proxmox, and advanced storage solutions to ensure system robustness and continuity.
➡️ Improved local network infrastructure using DNS, DHCP, Varnish, and HAProxy, significantly boosting connectivity and network performance.
Wireless Media GroupMedior System Administrator
Jul. 2017 - Sep. 2019Belgrade, Serbia➡️ Expertly maintained a broad spectrum of technologies, from Windows and Linux Servers to web servers (Nginx, Apache, IIS) and database platforms (MSSQL, MySQL), guaranteeing high system reliability and performance.
➡️ Oversaw server setups and optimized local network infrastructure using tools like DNS, DHCP, VMware, and Proxmox to ensure seamless operations.
➡️ Implemented best practices in data storage management to uphold data integrity and enhance system efficiency.
➡️ Leveraged Docker for efficient containerization and managed virtual environments using VMware and Proxmox, enhancing operational agility.
➡️ Boosted web application performance through strategic use of Varnish and HAProxy, optimizing network throughput and response times.
Generali Osiguranje SrbijaSistem Administrator
Jul. 2015 - Jun. 2017Serbia➡️ Managed Windows and Linux server environments, ensuring high availability and performance.
➡️ Administered network infrastructure, including Cisco and HP equipment, firewalls, and security systems.
Supported a team of programmers by providing essential infrastructure and troubleshooting services.
➡️ Participated in many company’s projects such as creating of DR site, administration of Avaya centrale, changes in network infrastructure and the transition to the network with optical cables, installation and commissioning of new HOST servers on VMware
➡️ Enhanced security protocols, reducing system vulnerabilities by 35% and ensuring compliance with industry standards.
➡️ Upgraded network infrastructure to optical cables, improving data transfer speeds by over 50% and reducing network downtime.
Generali Osiguranje SrbijaInformation Technology Help Desk Technician
Jan. 2009 - Jun. 2015Belgrade, Serbia➡️ Successfully maintained and optimized the performance of computers, operating systems, and network infrastructure, significantly reducing system downtimes.
➡️ Enhanced system security by implementing robust antivirus measures, resulting in a reduction in vulnerability incidents.
➡️ Streamlined the active directory and Linux environment operations, improving system efficiency by 30%.
➡️ Oversaw the procurement of computers and related equipment, optimizing the technology budget and resources.
➡️ Played a key role in the organization and improvement of the technical support service, boosting service efficiency and customer satisfaction.
➡️ Led the technical side of the implementation of a new application for vehicle insurance, contributing to a 20% increase in sales efficiency.
Ric CommerceIT Technician
Jan. 2007 - Jan. 2009Belgrade, Serbia➡️ Conducted comprehensive maintenance and upgrades of computer systems, enhancing system reliability and user satisfaction.
➡️ Successfully installed and configured hundreds of computer units, ensuring optimal performance and user support.
➡️ Provided critical technical support to users, resolving over 95% of issues on the first call, and significantly improving user experience.
➡️ Managed the acquisition process for computers and related technology equipment, ensuring a 25% improvement in budget efficiency and resource allocation.
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