System&Application Operations Expert

Date: Oct 27, 2025

Location: Istanbul, TR

Company: Vodafone

Join Us

At Vodafone, we’re not just shaping the future of connectivity for our customers – we’re shaping the future for everyone who joins our team. When you work with us, you’re part of a global mission to connect people, solve complex challenges, and create a sustainable and more inclusive world. If you want to grow your career whilst finding the perfect balance between work and life, Vodafone offers the opportunities to help you belong and make a real impact.

What you’ll do

We are seeking a skilled Microsoft Senior Expert to manage and maintain our Microsoft system and server network. In this role, you will be responsible for installing or upgrading Microsoft systems and servers, managing user access to servers, and automating processes to ensure operation security and stability.

•  Responsibilities: Microsoft server installation and upgrades; securely managing user access; ensuring network security and operational stability; implementing automation processes; crisis management and managing all operational processes. Improving Microsoft operational processes and enhancing service quality. Improving processes and existing work with new technologies and developing infrastructure.

• Requirements: High-level experience, ability to develop proactive solutions for clients, operation leadership, and communication skills.

• Objective: To work with a professional who can lead the project and effectively lead the team.

• Documentation: Creating, updating and disseminating procedure, activity and service documents, and preparing documents to eliminate the root of crises with the knowledge and experience gained regarding incidents, crises and studies in customer operations.

• Security and Compliance: Implements necessary security measures and ensures compliance with industry standards and regulations.

  • Lead the architectural design and implementation of Windows OS-based infrastructure solutions across hybrid and cloud environments.
  • Define and execute modernization strategies by simplifying legacy platforms and designing scalable, secure, and resilient systems.
  • Collaborate with vendors and technology partners to evaluate, integrate, and deploy new service platforms aligned with business goals.
  • Architect and oversee data center and application migration projects, ensuring minimal disruption and alignment with enterprise standards.
  • Maintain comprehensive inventory and lifecycle management of all infrastructure components, including hardware and software assets.
  • Provide expert-level troubleshooting and root cause analysis for complex system incidents and performance issues.
  • Design and implement change management, patching, and upgrade strategies in accordance with security and compliance requirements.
  • Establish and enforce security policies and best practices across Windows servers and services.
  • Conduct capacity planning, performance tuning, and trend analysis to ensure optimal system health and scalability.
  • Lead disaster recovery planning and testing, ensuring full operational readiness and documentation updates.
  • Act as a technical advisor to internal teams and customers, providing guidance on infrastructure improvements and technology adoption.
  • Drive continuous improvement initiatives and mentor junior engineers in best practices and architectural principles.
  • Analyse customer requirements and translate them into robust, future-proof infrastructure solutions.
  • Participate in strategic planning and roadmap development for infrastructure services and cloud adoption.
  • Stay current with emerging technologies and lead proof-of-concept initiatives to evaluate their applicability.
  • Planning training to contribute to team development and increase competencies. Expanding operational competencies and integrating them into general operational processes.

Who you are

  • Bachelor’s or Master’s degree in Computer Science, Information Technologies or a related engineering field.
  • Minimum 8+ years of professional experience in enterprise Windows and Microsoft Cloud infrastructure roles, with proven involvement in architecture, migration, and modernization projects.
  • Extensive hands-on experience with Windows Server OS family, including advanced administration, performance tuning, and troubleshooting.
  • Deep expertise in Microsoft Active Directory, Group Policy Objects (GPO), DNS, DHCP, and related domain services.
  • Strong working knowledge of Microsoft Azure Core Services, including Azure VM, Azure ARC, and PowerShell scripting for automation and infrastructure management.
  • Experience in managing Hybrid Azure Active Directory (Microsoft Entra ID) environments and integrating on-premises identity with cloud services.
  • Solid understanding of Microsoft 365 Online Services, including Exchange Online, SharePoint Online, Microsoft Teams, OneDrive for Business, Microsoft Defender for Office 365, Intune, Endpoint Manager, Microsoft Purview Compliance Portal, Microsoft 365 Security Center and Microsoft Entra ID (Hybrid Azure AD).
  • Hands-on experience with Microsoft SCCM (System Center Configuration Manager) for endpoint and server management.
  • Proficiency in log management and analysis, including Windows Event Logs, centralized logging solutions, and proactive monitoring for security and performance.
  • Strong experience in patch and update management, including evaluation, scheduling, deployment, rollback planning, and compliance reporting across Windows and Microsoft 365 environments.
  • Proven ability to analyze, troubleshoot, and resolve complex infrastructure issues across hybrid environments.
  • Strong communication skills in English, both written and verbal, with the ability to interact effectively with stakeholders and customers.
  • Demonstrated ability to work under pressure, manage multiple priorities, and collaborate within cross-functional teams.
  • Experience in Windows Server and/or Microsoft 365 migration and deployment projects, including planning, execution, and post-migration support.
  • Preferred certifications: Microsoft Certified Solutions Expert (MCSE), Microsoft Certified Solutions Associate (MCSA), or equivalent.
  • Nice to have: Microsoft Cloud Sertifications such as AZ-104, AZ-305, AZ-800/801, MS-100, MS-102, or higher-level certifications.
  • Strong desire and ability to continuously learn and adapt to emerging technologies and architectural best practices.

Not a perfect fit?

Worried that you don’t meet all the desired criteria exactly? At Vodafone we are passionate about empowering people and creating a workplace where everyone can thrive, whatever their personal or professional background. If you’re excited about this role but your experience doesn’t align exactly with every part of the job description, we encourage you to still apply as you may be the right candidate for this role or another opportunity.

What's in it for you

We like to keep them flexible:

•    Vflexy: Flexible Benefits Program 
•    Hybrid working kit
•    Ergonomic kit allowance 
•    Digital meal voucher
•    Flexible transportation allowance.
•    Employee assistance hotline & counselling
•    Comprehensive and flexible private health insurance
•    Discounted price deals for wide range of products & services 


Plus, plenty more to enjoy!If you want to know more about us and what we do, then visit our website: www.vodafone.com.tr

https://www.vodafone.com.tr/insan-kaynaklari

Instagram: https://www.instagram.com/vodafonekariyer/

Youtube: https://www.youtube.com/user/VFTurkiye


Data Privacy
By applying for this job, you accept the Vodafone Privacy Policy. Please visit Privacy Policy web page at https://careers.vodafone.com/privacy-policy/turkey/  for further details.

Who we are

We are a leading international Telco, serving millions of customers. At Vodafone, we believe that connectivity is a force for good. If we use it for the things that really matter, it can improve people's lives and the world around us. Through our technology we empower people, connecting everyone regardless of who they are or where they live and we protect the planet, whilst helping our customers do the same.

Belonging at Vodafone isn't a concept; it's lived, breathed, and cultivated through everything we do. You'll be part of a global and diverse community, with many different minds, abilities, backgrounds and cultures. ;We're committed to increase diversity, ensure equal representation, and make Vodafone a place everyone feels safe, valued and included.

If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, please refer to https://careers.vodafone.com/application-adjustments/ for guidance.

Together we can.