Identity & Access Management Engineer (IAM Platform Engineer)

Optimum Solutions (Singapore) Pte Ltd.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Optimum Solutions Singapore Pte Ltd. seeks a Platform Operations Engineer to design, implement and operate IAM capabilities across the organisation.

You'll configure identity brokering (AD FS, Entra ID), implement protocols (SAML, OAuth, OIDC) and automate with PowerShell/Python, supporting incident response and security governance. Ideal candidates have 4+ years in IAM or platform engineering, hands-on AD/LDAP, Graph API experience, and a degree in CS/CE/IT.

Qualifications

• 4 or more years of IAM, platform engineering, automation or related field.
• Hands-on with Active Directory, LDAP, AD FS and Microsoft Entra ID.
• Strong understanding of SAML, OAuth and OpenID Connect; Kerberos a plus.
• Experience using Graph API for identity management, integration or automation.
• Proficiency in PowerShell, Python or similar scripting languages.
• Knowledge of identity governance, access management and compliance.
• Certifications in identity/security or DevOps are a plus.
• Degree in Computer Science, Computer Engineering, Information Technology or related discipline.

Responsibilities

• Design, implement, configure and maintain IAM solutions across the organisation.
• Configure and manage identity brokering and federation technologies (AD FS, Entra ID).
• Implement and manage authentication/authorisation protocols (SAML, OAuth, OIDC).
• Use Graph API to support identity administration, integration and automation.
• Develop and maintain tools and automation using PowerShell or Python.
• Build and maintain platform and deployment automation with CI/CD practices.
• Apply DevSecOps principles to platform, identity and security automation.
• Support day-to-day platform operations, troubleshoot incidents and IAM issues.
• Ensure identity platforms are secure, resilient, governed and compliant.
• Contribute to monitoring, documentation, testing, change management and readiness.
• Collaborate with internal teams, vendors and partners to deliver initiatives.
• Communicate technical matters clearly to technical and non-technical stakeholders.
• Share knowledge and contribute to a collaborative team environment.
• Participate in on-call, incident response and operational support as required.

Skills

IAM

Platform engineering

Automation

Troubleshooting

DevSecOps

Communication

Education

Degree in CS/CE/IT

Tools

Active Directory

AD FS

Microsoft Entra ID

LDAP

PowerShell

Python

CI/CD

Job description

Role overview:

We are looking for a Platform Operations Engineer to design, implement, operate and continuously improve Identity and Access Management (IAM) capabilities.

Responsibilities

• Design, implement, configure and maintain IAM solutions across the organisation.
• Configure and manage identity brokering and federation technologies, including Active Directory, AD FS, PKI and Microsoft Entra ID.
• Implement and manage authentication and authorisation protocols including Kerberos, SAML, OAuth and OpenID Connect.
• Use Microsoft Graph API to support identity administration, integration and automation.
• Develop and maintain s, tools and automation using PowerShell, Python or similar technologies to reduce manual effort and operational workload.
• Build and maintain platform and deployment automation using ing, configuration management and CI/CD practices.
• Apply DevSecOps principles to platform, identity and security automation.
• Support day-to-day platform operations, troubleshoot incidents and resolve IAM and platform-related issues.
• Ensure identity platforms are secure, resilient, governed and compliant.
• Contribute to monitoring, documentation, testing, change management and operational readiness activities.
• Work closely with internal teams, vendors and technology partners to deliver identity and automation initiatives and resolve technical issues.
• Communicate technical matters clearly to both technical and non-technical stakeholders.
• Share knowledge and contribute to a collaborative team environment.
• Participate in on-call, incident response and operational support when required.

Requirements

• 4 or more years of experience in IAM, platform engineering, automation or a related field.
• Hands-on experience with Active Directory, LDAP, AD FS and Microsoft Entra ID.
• Strong understanding of SAML, OAuth and OpenID Connect; knowledge of Kerberos is an advantage.
• Experience using Microsoft Graph API for identity management, integration or automation.
• Proficiency in PowerShell, Python or similar ing languages.
• Knowledge of identity governance, access management and compliance.
• Strong troubleshooting, analytical and problem-solving skills.
• Certifications such as the Microsoft Certified: Identity and Access Administrator Associate, Microsoft Certified: Azure Security Engineer Associate or any relevant AWS or DevOps certifications will be a plus.
• Degree in Computer Science, Computer Engineering, Information Technology, Engineering or a related discipline, or equivalent relevant experience.