Infrastructure Engineer, Shared Infrastructure

About the Job

The individual will provide technical leadership within the Infrastructure Delivery function at Great Eastern. The Engineer is responsible for the design, implementation, administration, and support of core enterprise services that underpin the organization's IT environment. This includes DNS, DHCP, NTP, internal Certificate Authority, Active Directory, and Syslog services. The role ensures these services are secure, highly available, compliant, and resilient, supporting critical business operations while safeguarding the organization against outages, cyber threats, and operational risks.

The role also plays a key part in disaster recovery, continuity planning, and resilience assurance, supporting governance, regulatory compliance, and organizational readiness to respond effectively to incidents and disruptions.

The Job

• Administer and maintain DNS, DHCP, NTP, internal CA/PKI, AD, and Syslog systems.
• Monitor availability, capacity, and performance of shared infrastructure services, ensuring adherence to SLAs.
• Troubleshoot and resolve incidents, service requests, and escalations.
• Design and implement upgrades, patches, and enhancements to shared infrastructure services.
• Contribute to service automation, standardization, and process improvement initiatives.
• Integrate shared infrastructure services with cloud, hybrid, and security platforms, ensuring secure and resilient end-to-end service delivery.
• Ensure compliance with security policies, audit requirements, and regulatory standards.
• Manage configurations of shared infrastructure services securely to prevent vulnerabilities.
• Support certificate lifecycle management and security practices.
• Work closely with technology tower leads (e.g., Compute, Network, Backup, Storage) to recommend design improvements and resilience enhancements.
• Support infrastructure projects that depend on infrastructure core services availability and reliability.
• Document architectures, procedures, and operational runbooks.

We are looking for people who

• A bachelor's degree in computer science / IT, or diploma in a relevant field.
• Strong expertise in IT infrastructure domains (compute, storage, backup, network, middleware, cloud).
• More than 8 years of IT experience, with at least 5 years in resilience, architecture, operations, or infrastructure assurance roles.
• Solid understanding of resilience principles such as redundancy, high availability, failover, disaster recovery, and backup strategies.
• Ability to assess complex architectures and recommend resilience improvements.
• Excellent analytical and problem-solving skills with attention to detail.
• Strong communication and stakeholder management skills to influence technology teams and project managers.
• Proven track record of leading resilience or high-availability improvement initiatives.
• Experience collaborating across multiple technology towers and project delivery teams.
• Strong technical expertise in: Microsoft Active Directory (user/group management, GPO, domain controllers).
• DNS & DHCP administration (Microsoft DNS, Infoblox, or equivalent).
• NTP configuration and synchronization best practices.
• PKI/Internal Certificate Authority (certificate lifecycle, CRL, OCSP, key management).
• Networking fundamentals (TCP/IP, firewalls, routing).
• Security principles (authentication, encryption, TLS, certificate validation).
• Knowledge of scripting and automation (PowerShell, Python, or Ansible) will be an advantage.
• Strong analytical and troubleshooting skills.
• Core Infrastructure & Microsoft Windows related certifications are preferred.

How you succeed

• Champion and embody our Core Values in everyday tasks and interactions.
• Demonstrate high level of integrity and accountability.
• Take initiative to drive improvements and embrace change.
• Take accountability of business and regulatory compliance risks, implementing measures to mitigate them effectively.
• Keep abreast with industry trends, regulatory compliance, and emerging threats and technologies to understand and highlight potential concerns/ risks to safeguard our company proactively.

Who we are

Founded in 1908, Great Eastern is a well-established market leader and trusted brand in Singapore and Malaysia. With over S$100 billion in assets and more than 16 million policyholders, including 12.5 million from government schemes, it provides insurance solutions to customers through three successful distribution channels – a tied agency force, bancassurance, and financial advisory firm Great Eastern Financial Advisers. The Group also operates in Indonesia and Brunei.

The Great Eastern Life Assurance Company Limited and Great Eastern General Insurance Limited have been assigned the financial strength and counterparty credit ratings of AA- by S&P Global Ratings since 2010, one of the highest among Asian life insurance companies. Great Eastern's asset management subsidiary, Lion Global Investors Limited, is one of the leading asset management companies in Southeast Asia.

Great Eastern is a subsidiary of OCBC, the longest established Singapore bank, formed in 1932. It is the second largest financial services group in Southeast Asia by assets and one of the world's most highly-rated banks, with an Aa1 rating from Moody's and AA- by both Fitch and S&P. Recognised for its financial strength and stability, OCBC is consistently ranked among the World's Top 50 Safest Banks by Global Finance and has been named Best Managed Bank in Singapore by The Asian Banker.

To all recruitment agencies: Great Eastern does not accept unsolicited agency resumes. Please do not forward resumes to our email or our employees. We will not be responsible for any fees related to unsolicited resumes.