The Windows Systems Administrator is responsible for the design, implementation, security, and ongoing support of enterprise Windows infrastructure across regional and selected global environments. This role supports on-premises, hybrid, and cloud-based systems, ensuring availability, security, performance, and compliance of Windows servers and endpoint platforms.
Essential Duties and Responsibilities- Administer and support Windows Server 2016/2019/2022 environments including Active Directory, DNS, DHCP, Group Policy, and file services.
- Manage hybrid identity services using Microsoft Entra ID (Azure AD).
- Support virtualization platforms such as VMware or Hyper-V.
- Implement endpoint and server security controls and participate in incident response.
- Design and maintain backup and disaster recovery solutions.
- Develop PowerShell scripts for automation and reporting.
- Provide escalation-level Help Desk and regional support.
- Maintain documentation and drive continuous improvement.
- Support Desktops Windows 10/11 in various locations remotely and on premise
- Support IT functions such as printing, desktop imaging and rebuilding and other desktop duties as required.
- Bachelor’s degree preferred.
- 3–5+ years enterprise Windows administration experience and desktop experience.
- Strong knowledge of Windows Server and desktop, Active Directory, Entra ID, and scripting.
- Fluency in English.
- Russian speaking proficiency required or strongly preferred.
Core Laboratories, including all of its affiliated and related entities, is an equal opportunity employer and is committed to creating an inclusive environment for everyone. Employment decisions are made regardless of characteristics including, but not limited to, race, color, sex, sexual orientation, gender identity, national origin, age, disability, religion, genetic information, protected veteran or uniformed service member status, and any other characteristic protected under applicable law.
Skills Required
- 3-5+ years of enterprise Windows administration experience
- Strong knowledge of Windows Server and desktop
- Knowledge of Active Directory and Entra ID
- Proficiency in scripting with PowerShell
- Fluency in English
- Russian speaking proficiency
What We Do
Core Laboratories is a leading provider of proprietary and patented Reservoir Description and Production Enhancement services. Core Laboratories remains dedicated to providing the technology you need to enhance your production. We continue to develop and acquire technologies that complement our existing products and services, and we disseminate these technologies throughout our global network. With over 70 offices in more than 50 countries located in major oil-producing provinces, Core Laboratories provides services to the world's major, national, and independent oil companies. We can help you solve your reservoir problems. Core Laboratories' reservoir optimization technologies are used to increase total recovery from existing fields. Our services enable our clients to optimize reservoir performance and maximize hydrocarbon recovery from their producing fields. Core Laboratories has taken extensive measures to ensure the services and data provided by all of our worldwide companies are of the highest quality and integrity. Our commitment to applying and developing new technologies to optimize reservoir performance is unsurpassed in the oilfield service industry. This commitment to technology and to your bottom line makes Core Laboratories, The Reservoir Optimization Company™.
