About UOB United Overseas Bank Limited (UOB) is a leading bank in Asia with a global network of more than 500 branches and offices in 19 countries and territories in Asia Pacific, Europe and North America. In Asia, we operate through our head office in Singapore and banking subsidiaries in China, Indonesia, Malaysia and Thailand, as well as branches and offices. Our history spans more than 80 years. Over this time, we have been guided by our values - Honorable, Enterprising, United and Committed. This means we always strive to do what is right, build for the future, work as one team and pursue long-term success. It is how we work, consistently, be it towards the company, our colleagues or our customers.
Job Description We are seeking a skilled and motivated Windows Infrastructure Engineer to join our team. The ideal candidate will have at least 10 years of hands-onexperience in managing and supporting Windows-based infrastructure, with astrong focus on Active Directory (AD), Microsoft 365 integration, ADFS, Microsoft Entra ID and Microsoft Tier-0 AD architecture. This role involves maintaining high availability, security, and performance of core infrastructure services in a dynamic enterprise environment.
Key Responsibilities: - Administer and maintain Windows Server environments, includingpatching, performance tuning, and troubleshooting.
- Manage and support Active Directory infrastructure, including Group Policy, DNS, DHCP, and replication.
- Implement and maintain Microsoft Entra ID and Microsoft 365 integration with Active Directory, including hybrid identity solutions.
- Configure and support ADFS and related federation services for secure authentication and SSO.
- Design and maintain Tier-0 AD architecture, ensuring security and segregation of privileged access.
- Administer and maintain the Certificate Authority (CA) server.
- Participate in infrastructure projects, including upgrades, migrations, andautomation initiatives.
- Monitor system performance and availability and respond to incidents and service requests.
- Collaborate with security and compliance teams to ensure adherence to policies and standards.
- Document procedures, configurations, and changes in accordance with ITIL practices.
- Minimum 10 years of experience in Windows Infrastructure administration.
- Strong knowledge of Active Directory, including forest/domain design, Oustructure, and GPOs.
- Experience with Microsoft 365 integration, including Microsoft Entra ID ADConnect and hybrid identity.
- Hands-on experience with ADFS and federation services.
- Familiarity with Tier-0 AD architecture and privileged access management.
- Experience managing Certificate Authority servers and understanding ofPKI concepts.
- Proficiency in PowerShell scripting for automation and administrationtasks.
- Understanding of networking fundamentals (TCP/IP, DNS, DHCP, CertificateAuthority).
- Excellent problem-solving and communication skills.
- Preferred Qualifications:Microsoft certifications
- Experience with identity governance and privileged access tools (e.g.,CyberArk).
- Exposure to cloud platforms such as Azure or AWS.
- Familiarity with ITIL framework and change management processes.
Additional Requirements Be a Part of the UOB Family
UOB is an equal opportunity employer. UOB does not discriminate on the basis of a candidate's age, race, gender, color, religion, sexual orientation, physical or mental disability, or other non-merit factors. All employment decisions at UOB are based on business needs, job requirements and qualifications. If you require any assistance or accommodations to be made for the recruitment process, please inform us when you submit your online application.
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