Senior / Security Engineer / IAM Engineer / Enterprise Tools & Observability Engineer (Ref 26505)

JOBLINE RESOURCES PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

JOBLINE RESOURCES PTE. LTD. is seeking a senior cybersecurity professional to design and govern enterprise IAM architectures, manage ADFS/Entra ID, and lead security operations in a Singapore-based environment.

Your role involves implementing zero-trust controls, monitoring Azure AD security services, and guiding remediation for security incidents with executive reporting responsibilities. This position emphasizes collaboration with cross-functional teams and compliance duties.

Qualifications

• Experience in enterprise cybersecurity with IAM, cloud security, PAM, and governance.
• Hands-on administration of AD/ADFS/Entra ID and federated identities.
• Strong knowledge of Azure and Microsoft 365 security technologies.
• Experience in security incident investigation and remediation.
• Excellent stakeholder communication and executive reporting.

Responsibilities

• Design and govern enterprise identity security architecture.
• Administer AD, ADFS, Entra ID, and SSO configurations.
• Monitor security posture dashboards and encryption solutions.
• Investigate security incidents and provide remediation guidance.
• Provide audit evidence and compliance reporting support.

Skills

IAM expertise

Cloud security

Governance frameworks

Incident response

Stakeholder management

Education

Bachelor's degree in Computer Science or related field

Tools

Active Directory

ADFS

Entra ID

Azure AD Connect

SSO

Conditional Access

MFA

CyberArk PAM/EPM

PKI / certificate lifecycle

Azure Firewall

ExpressRoute

Private Link

Zero Trust

Microsoft 365 security technologies

Job description

Responsibilities

• Design and govern enterprise identity security architecture
• Administer Active Directory and ADFS operations
• Maintain Entra ID configurations and policies
• Monitor Azure AD Connect synchronization health
• Support SSO integrations (SAML, OAuth, OIDC)
• Enforce and troubleshoot Conditional Access policies
• Manage MFA enrollment and troubleshooting
• Monitor Azure Firewall logs and alerts
• Validate ExpressRoute security posture
• Review Private Endpoint and Private Link configurations
• Monitor Microsoft 365 security dashboards
• Manage and administer CyberArk EPM & PAM
• Administer Trend Micro email and endpoint security alerts
• Manage PKI certificate renewals and deployments
• Troubleshoot SSL and encryption issues
• Investigate medium-level security incidents
• Provide audit evidence and compliance reporting support
• Maintain updated security SOPs and documentation
• Participate in DR and security validation testing
• Escalate complex threats to L3 Security Engineer

Requirements

• Diploma/Degree in Computer Science, Information Technology, Engineering, or related disciplines.
• Proven experience in enterprise cybersecurity, with strong expertise in identity and access management (IAM), cloud security, privileged access management (PAM), and security governance.
• Hands‑on experience administering and securing Active Directory, ADFS, Entra ID, Azure AD Connect, Single Sign-On (SSO), Conditional Access, Multi‑Factor Authentication (MFA), and federated identity services.
• Strong knowledge of Microsoft Azure and Microsoft 365 security technologies, including Azure Firewall, ExpressRoute, Private Link, Zero Trust architectures, and cloud security best practices.
• Experience managing privileged access and endpoint security platforms, including CyberArk PAM/EPM, email security, endpoint protection, PKI, certificate lifecycle management, and encryption technologies.
• Proven ability to investigate and respond to security incidents, conduct root cause analysis, perform security posture assessments, and implement remediation strategies.
• Experience developing and enforcing security standards, hardening baselines, governance frameworks, compliance controls, and audit requirements within enterprise environments.
• Strong understanding of security frameworks, risk management, ISMS, regulatory compliance, and security architecture principles.
• Excellent stakeholder management, documentation, and communication skills, with experience providing executive‑level reporting, leading security initiatives, and mentoring junior security team members.