You will become part of our internationally operating Core-Backbone team and take responsibility for the operation and design of the company's internal Microsoft server and client environment, ensuring the security and availability of our internal systems. Core-Backbone is an internationally successful carrier headquartered in Nuremberg. Our company was founded in 2006 and has developed into a global network operator. Our competent team of more than 25 employees and our over 46 PoPs across three continents guarantee our customers permanent, secure, highly available, and high-performance connectivity to the internet. As one of the fastest-growing carriers in Europe, we operate globally for our customers. We are seeking skilled junior staff for our location in Nuremberg. What awaits you A future-oriented and rapidly growing company with long-standing expertise An attractive and performance-based salary with additional benefits (e.g. childcare allowance, company pension scheme) Thorough onboarding by our experienced team as well as regular further training to specifically support your professional and personal development (internal/external training) Team-oriented work with close, expert exchange among friendly colleagues in a pleasant atmosphere A professional and collegial working environment, modern offices near the charming historic city center, and additional amenities such as beverages (coffee, soft drinks) and company events Excellent accessibility due to favorable transportation links Additional benefits: Company mobile phone, further training, free drinks, flexible working hours Your responsibilities Administration, support, documentation, maintenance, and monitoring of Windows server and client systems Active Directory, Hyper-V virtualized host systems, and failover clusters Design, setup, and support of Windows infrastructures, including documentation of environments for audits Further development of the Windows infrastructure Supporting employees with issues and troubleshooting when problems arise Your profile Preferably several years of professional experience with Microsoft Windows Server and client systems Knowledge of Microsoft 365 cloud services and Azure directory Active Directory expertise Experience in system operations In-depth knowledge of the Microsoft ecosystem Willingness to continue professional development Current certifications in the aforementioned technologies are advantageous Degree in computer science, engineering, or natural sciences, or certified IT specialist (m/w/d) in system integration or application development Fluent German and English language skills at negotiation level (C2) Willingness to contribute to problem resolution outside regular working hours when necessary Personality-wise, you convince us with a creative, structured, and results-oriented work style as well as a high degree of independence. If you also have strong interpersonal and communication skills and enjoy working in a team, you are exactly the right fit for us!