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Meet our team

Mainstream is a company made up of experienced, dedicated and talented professionals with a common mission: to help companies, whatever phase of cloud transformation they are in, make the most of cloud technologies to grow their business.

Technology

Veselin Mijušković

Head of Technical Development

Veselin is one of the leading Linux experts in Serbia and a certified Google Cloud engineer. As a pioneer in the regional IT sector, he established the first web server visible on the Internet in Yugoslavia. In Mainstream, he is in charge of projects in the field of cybersecurity, DevOps and cloud. He is the author and lecturer of numerous IT courses in Serbia and Slovenia.

Stefan Raičević

Tech Team Lead

In five years Stefan has worked his way up from MOC Engineer to Tech Team Lead in our company. He is in charge of supporting his FSI clients’ requests fulfillment team, with a focus on Linux systems, automation and virtualization.

Pavle Obradović

Network Architect

With over 10 years of experience in the service provider sector, Pavle has led all phases of the network lifecycle throughout his career. As a Network Architect, he is in charge of needs analysis, design and implementation of high-performance, high-availability and scalable networks, as well as Disaster Recovery solutions for demanding clients, as well as for Mainstream itself.

Bojan Manojlović

System Architect

Bojan is an expert in Internet, cloud and hosting services with more than 15 years of experience. Responsible for project management, technical team coordination, client needs analysis, design of complex hosting infrastructure and capacity management. His specialty are Cisco and VMware technologies.

Bojan Vitnik

System Architect

Bojan is an Open Source and *nix enthusiast with over 10 years of experience. He is an expert in the field of cloud hosting technologies, virtualization platforms, high availability systems and automation with broad knowledge and experience in many other IT areas. He is career-oriented towards the field of automation where he is an active Open Source Contributor (Ansible and other projects).

Marko Uskoković

System Architect

Marko has over 15 years of experience in the administration of Linux systems, virtualization platforms and databases. He has gained an analytical approach to solving problems and a vast experience working in the computing center of the Faculty of Electrical Engineering in Belgrade. In Mainstream, he participated in designing the Managed Web Hosting System and the implementation of more than 1,000 Linux servers.

Rade Perić

Team Leader, Managed Hosting

Rade is a Linux engineer with extensive experience in managing complex managed hosting projects. Together with his team, he works on developing and providing support to demanding enterprise clients to ensure high availability of their mission-critical systems and applications. His technological competencies include RHEL and Debian-based systems, VMware, Citrix XenServer, TCP/IP Protocol Suite, Docker, Kubernetes, Terraform, Ansible and many other tools.

Public Cloud

Boris Vezmar

AWS Team Lead

Boris is a public cloud expert with over 15 years of experience in the IT sector. He has over 25 AWS projects behind him, including migration and system architecture projects for international clients. His primary areas of interest are automation and DevOps practices. Its technological competencies, which he is constantly expanding, include Kubernetes, Terraform, Docker, Ansimble, Linux, Web Server, SCM, CI/CD and other modern tools.

Rastko Vasiljević

Public Cloud Team Lead

Rastko is a certified Linux system engineer with over 15 years of IT experience. With deep knowledge of a wide range of cloud technologies, with a focus on Azure, AWS and GCP platforms, as well as the latest DevOps practices, together with the public cloud team, he solves a wide variety of client challenges, from optimizing cloud costs through improving system security to solving all current problems.

Nemanja Serafimović

Microsoft Cloud inženjer

Nemanja is an IT expert with over 15 years of experience. He has participated in more than 20 Azure projects, including migrations of infrastructure and architecture of Azure-Cloud-based solutions, as well as FinOps and SecOps projects. He is an expert in microservices, DevOps tools and Microsoft technologies such as SCCM, IIS and MS SQL.

Banking

Goran Milošević

Banking Cloud Director

Goran is an expert with over 27 years of IT experience during which he worked his way up from and engineer and presales consultant to manager of large teams. In the past period, he was engaged in the project of transforming the core banking system for one of the leading banks in Serbia, where he provided strategic leadership to the Mainstream Banking team as a Program Manager.

Milan Stanojević

Banking Operations Center Team Lead

Milan is an experienced systems engineer whose specialties include system and network administration, troubleshooting, security and maintenance of Linux and Windows operating systems. With proactivity and deep knowledge of different technologies, Milan ensures smooth and undisturbed functioning of all operations and systems of Mainstream FSI clients.

Ivan Dimitrijević

Application Support Lead

With over 12 years of experience in the IT industry, Ivan has extensive expertise in the field of complex integration of banking applications and services. During his career, he has worked on numerous significant projects, including the upgrade of the core banking system of Societe Generale Bank, the data migration of Alpha and KBC Bank, the integration of SoGe and Vojvođanska Banka and the migration of the core banking system and satellite applications of ERSTE Bank.

Business development

Dejan German

Sales Director Serbia

At Mainstream, Dejan is responsible for defining the sales strategy and organizing the sales team in Serbia. He has over 16 years of experience in finance, information technology and management, which he acquired through work at KPMG and IBM.

Svetlana Šelmić

Chief Commercial Officer

With over 25 years in IT, Svetlana has more than 15 years of experience leading sales teams in Southeast Europe. Her specialties are business development, sales management and organization, conducting complex negotiations, concluding contracts and monitoring their implementation. Prior to Mainstream, she worked at Nokia, Huawei, Ingram Mikro and Optiva.

Management

Ljubiša Radivojević

Chief Executive Officer

Ljubiša is the founder of Mainstream, who, together with his partners, launched a company with the mission of helping businesses open new business opportunities with cloud technologies in the era of digitalization. He started his career as a Linux engineer and has over 25 years of IT experience, as well as several startups running. Under his leadership, Mainstream achieved regional growth and became the leading cloud provider in Southeast Europe.

Nikola Paunović

Chief Operating Officer

Nikola has over 17 years of experience in consulting, optimization and transformation of business processes and delivery management in an international environment. Prior to Mainstream, he worked in the renowned companies HPE, SAS and Microsoft. Nikola's focus is on keeping clients at the center of all activities and continuous team development.

Aleksandar Nedeljković

Chief Business Officer

Aleksandar has over 15 years of experience in finance, business development and negotiation, strategic consulting and operations in the fields of cloud and digital transformation, data and analytics and change management. Prior to Mainstream, he worked as a Business Advisor at Deloitte Adriatic and Foreign Investment Advisor at Serbia Investment and Export Promotion Agency (SIEPA).

Nikola Marković

Public Cloud Director

Nikola is a successful entrepreneur and IT expert with over 20 years of experience. With a focus on clients, he is in charge of developing public cloud portfolios, DevOps and 24x7 managed services tailored to the specific needs of domestic and international companies. As a certified AWS and Google Cloud expert, Nikola is constantly working on discovering new business opportunities for companies of all sizes, from startups to corporations, using cloud technologies.

Nevena Milić

Chief Financial Officer

Nevena has many years of experience in various areas of finance, from planning, budgeting, analysis and forecasting to the implementation of reporting systems and financial reporting standards. Prior to joining Mainstream, she worked for seven years as IFSR Reporting Manager at United Group where she achieved proven results in an international environment.

Zorana Jurić

Mainstream Cloud Director

Zorana is responsible for the complete business and growth of Mainstream cloud in all markets, with a focus on the realization and monitoring of pre-sales and post-sales activities, as well as providing support to technology and business. She has over 16 years of experience in sales, marketing and management that she has gained by working in various positions at renowned companies such as Kaspersky Lab and IDC.

Milica Vesić Petrović

Marketing Director

Milica has over 10 years of experience in the development and implementation of marketing strategies and activities in the FMCG, gaming and IT industry. In Mainstream, she is responsible for creating a marketing strategy, defining approaches in the domestic and regional market, launching new services and brand-building, as well as building relationships with clients through multi-channel communication.

Sanela Stojanović

HR Manager

In Mainstream, Sanela is responsible for the implementation and realization of the human resources strategy, employee-motivation activities and employee development plans, talent and employee performance management. She has 13 years of professional experience and a degree in human resources expert studies in Madrid.

Mainstream is the largest provider of innovative cloud solutions and managed hosting services with a network of 8+ data centers in Southeast Europe.

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