Senior System Engineer – Microsoft, Modern Workplace

Proact Deutschland

Senior System Engineer providing 2nd and 3rd level support for Microsoft based infrastructures. Collaborating with Service Desk and managing incidents in modern workplace environments.

Posted 7/1/2026full-timeKöln • 🇩🇪 GermanySeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in 2nd and 3rd level support for Microsoft-based infrastructures, with strong knowledge of Windows Server, Active Directory, and Microsoft cloud technologies. Capable of handling incidents effectively while maintaining a service-oriented approach and clear documentation.

Highest-signal resume keywords

2nd/3rd Level SupportWindows Server ManagementActive Directory AdministrationMicrosoft Cloud TechnologiesIncident Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Incident HandlingRoot-Cause AssessmentPatch ManagementMaintenance TasksDocumentation of Technical Issues

Soft Skills

Service-OrientedStrong Communication SkillsTeam PlayerSelf-ReliantStructured Approach

Tools & Technologies

Microsoft 365AzureAVDExchangeSQL

Certifications & Qualifications

Vocational Training in ITDegree in IT

Industry Keywords

Microsoft InfrastructuresOperational ITService DeskService Delivery ManagementOn-Call Duty

Tech Stack

Tools & technologies

AzureCloudSQL

About the role

Key responsibilities & impact

2nd and 3rd level support for Microsoft-based infrastructures
Handle incidents in a structured and sustainable way — from analysis and resolution to root-cause assessment
Maintain and further develop the Modern Workplace infrastructure
Work closely with the Service Desk and take over incidents
Plan and execute standard changes, e.g. patch, maintenance and operational changes
Operate and maintain Windows Server environments, Active Directory and related Microsoft services
Perform regular updates and maintenance tasks
Document incidents, solutions and workarounds in a clear and traceable manner
Collaborate closely with colleagues from Operations and Service Delivery Management
Participate in on-call duty and assist with critical incidents

Requirements

What you’ll need

Completed vocational training or a degree in IT and professional experience in operational IT
Practical experience handling incidents in a 2nd/3rd level support environment
Strong knowledge of Microsoft infrastructures such as Windows Server and Active Directory; ideally experience with Exchange and/or SQL
Initial experience with Microsoft cloud technologies (M365, Azure, AVD, etc.)
Understand the difference between Incident, Problem and Change
Self-reliant, structured and calm in incident situations
Able to document technical issues clearly and understandably
Service-oriented, strong communication skills and a team player
Fluent in German and English

Benefits

Comp & perks

Provision of new, high-performance IT equipment including home office setup; company merchandise such as backpacks/laptop bags, polo shirt and softshell jacket
Company pension scheme (BAV), occupational disability insurance, group accident insurance
30 days of vacation plus several special leave days (e.g. wedding, birth)
‘berufundfamilie’ certified (work–family balance), childcare allowance
Christmas party, summer BBQ, autumn festival and other team events
Corporate Benefits