Job Description for Windows L3 Administrator: Active Directory Responsible for the design, implementation, and maintenance of the Microsoft Active Directory domains for development infrastructure. Windows Server 2016 to 2022. Support and configure DNS for existing and new domains. Access management, Role Based Access Control. Computer objects and Strong working knowledge on Service accounts, GPO, KMS and LDAPs PKI certificates install and troubleshoot. Install and support third party software utilities for hardware systems within company operational guidelines. You shall be the primary responsible for Windows domains for development infrastructure. Technical knowledge sharing with colleagues. You will Provide design and do architecture suggestions for improvements and coming infrastructure. You will take care of security compliance under relevant security policies. You will Proactively manage the environment to prevent incidents from occurring. You will Proactively identify inefficiencies in operations with the objective of improving the quality of the working environment. You will build, promote, and demote domain controllers. Create and maintain system documentation for domain technologies, including installation&configuration. L3 Level knowledge Microsoft Active Directory Worked on AD migration. Strong Working (L3/L4) level knowledge on various windows components like DNS, DHCP, GPO and troubleshooting. Strong knowledge on various security aspects in AD, hardening and compliance. Knowledge of DNSSEC and secure zone transfers. Knowledge of IP address management, including management of IP address blocks and DHCP. Knowledge on incident and change management. Power shell scripting and Automation. Technical proposal recommendation to management Technical POC for escalations Handling ticket incidents and requests