IT infrastructure & security engineer

Quantum-Systems GmbH; Berlin; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Company pension scheme

Flexible working hours

Mobile work

Wellness benefits

Bike leasing

Corporate discounts

Lunch card

Job summary

Quantum-Systems GmbH ищет IT-инфраструктурного иSecurity менеджера в Берлине для поддержки и развития IT-ландшафта компании. Ваша роль будет охватывать администрирование серверов, облачных сервисов и устройств, обеспечение безопасности и эффективной работы критически важных систем.

Требуется практический опыт в управлении инфраструктурой, знаний Microsoft 365 и принципов информационной безопасности, а также способность работать в динамичной международной среде.

Qualifications

• Степень в области информатики или сопоставимая квалификация; опыт работы в ИТ-инфраструктуре.

Responsibilities

• Управлять и поддерживать IT-инфраструктуру, включая Windows и Linux серверы, облачные сервисы и конечные устройства.
• Обеспечивать доступность, производительность и безопасность критически важных систем.
• Администрировать и оптимизировать Microsoft 365: Entra ID, Intune, Exchange Online; мониторинг и улучшение мер безопасности.
• Управлять MDM и платформами безопасности для Windows, macOS и мобильных устройств.
• Поддерживать виртуализационные окружения и инфраструктурные сервисы.
• Контролировать сетевую производительность и безопасность, решать проблемы и внедрять улучшения.
• Работать с конфигурациями Firewall (Fortigate, Sophos) и оказывать вторичную поддержку.
• Внести вклад в IT‑проекты и улучшения процессов (BSI-Grundschutz, ISO/IEC 27001).

Skills

Microsoft 365 administration

Intune

Entra ID

Exchange Online

Networking basics (TCP/IP, DNS, DHCP,

Security concepts

IT infrastructure monitoring

Analytical troubleshooting

English communication

Education

Степень в области информатики / IT

Tools

Fortigate

Sophos

Veeam Backup

Windows Server

Linux/macOS

Job description

Описание:

As an IT Infrastructure & Security Manager (m/f/d), you will play a vital role in maintaining, securing, and continuously improving our IT landscape across multiple locations. Working closely with internal stakeholders and technical teams, you will help ensure the reliability, performance, and security of our infrastructure while supporting the company's growth and innovation. We are looking for a hands‑on professional who combines strong infrastructure expertise with a security‑first mindset and enjoys working in a dynamic, international environment.

Задачи:

• Manage and maintain our IT infrastructure, including Windows and Linux servers, cloud services, and endpoint devices.
• Ensure the availability, performance, and security of business‑critical systems and services.
• In regard to security administer and optimize Microsoft 365 services, including Entra ID, Intune, Exchange Online Implement, monitor, and continuously improve security controls, policies, and best practices across the organization.
• Manage Mobile Device Management (MDM) solutions and endpoint security platforms for Windows, macOS, and mobile devices.
• Support and maintain virtualization environments and infrastructure services.
• Monitor network performance and security, troubleshoot connectivity issues, and collaborate on infrastructure improvements.
• Review and maintain Firewall configurations (Fortigate Infrastructure, Sophos) Provide second‑level support for complex infrastructure and security‑related incidents.
• Contribute to IT projects, process improvements (BSI‑Grundschutz, ISO /IEC 27001).

Требования:

• A degree in Computer Science, Information Technology, or a comparable qualification and professional experience (CCNA, CompTIA+).
• Hands‑on experience in IT infrastructure administration, system management, or IT operations.
• Good knowledge of Microsoft 365 administration, including Intune, Entra ID, and related cloud services.
• Experience working with Windows environments; familiarity with Linux and macOS is highly desirable.
• Solid understanding of IT security principles, endpoint protection, identity management, and system hardening.
• Solid knowledge of networking concepts, including TCP/IP, DNS, DHCP, VPNs, and firewalls.
• Knowledge in backup procedures (Veeam Backup)
• Strong analytical and troubleshooting skills with a structured and solution‑oriented approach.
• The ability to communicate technical concepts clearly to both technical and non‑technical stakeholders.
• A proactive mindset, willingness to take ownership, and enthusiasm for learning new technologies and security trends.
• Fluency in English; Будет плюсом: German language skills are considered a plus

Условия:

• Company pension scheme: We support you so that you can already make provisions for later.
• Flexible Working Hours With trust‑based working hours, you are not only responsible for your working hours, but also for your work‑life balance.
• Mobile Work If things get a little busy in the office, you have the option to work remotely one flexible day per week to create the right balance.
• Stay Active With EGYM Wellpass, you get access to thousands of fitness and sports facilities — and of course, we subsidize the membership.
• Bike‑Leasing We support you in staying environmentally mobile and healthy.
• Corporate Benefits Your opportunity for attractive offers and discounts from well‑known suppliers and brands, e.g. Adidas, Apple, Expedia.
• Employee Events We not only want to grow together, but also celebrate our successes together.
• Lunch‑Card Be powerful with delicious energy, daily lunch budget is sponsored.
• Company Shuttle Enjoy our convenient shuttle service that picks you up from Pasing in Munich and brings you to our location, with return trips at the end of the workday.