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Infrastructure Engineer Workplace Service Job Opening In Singapore, Singapore – Now Hiring Singtel


Job description

An empowering career at Singtel begins with a Hello.

Our purpose, to Empower Every Generation, connects people to the possibilities they need to excel.

Every hello at Singtel opens doors to new initiatives, growth, and BIG possibilities that takes your career to new heights.

So, when you say hello to us, you are really empowered to say…“Hello BIG Possibilities”.


Be a Part of Something BIG! 


As an Infrastructure Engineer Workplace Services, you will play a pivotal role in the modernization, optimization, and automation of our Active Directory Services ecosystem, encompassing technologies such as but not limited to:

  • Microsoft Entra

  • Microsoft Entra Connect

  • Active Directory Federation Services (AD FS)

  • Active Directory Certificate Services (AD CS)

  • Domain Name System (DNS)

  • Lightweight Directory Access Protocol (LDAP)

  • Microsoft Defender for Identity

  • SilverFort MFA
  • We are looking for a technically strong and reliable Active Directory Engineer to join us.

    This mid-level role is focused on both operational support and project-based delivery, with primary focus on the safe and controlled rollout of Microsoft Defender for Identity and implementation of Silverfort ring fencing without introducing risk to business services.


    Make An Impact By

    Microsoft Defender for Identity (MDI) Deployment

  • Lead the technical implementation of MDI sensors across all designated Domain Controllers, prioritizing critical assets as identified shared KPI between ADS team and InfoSec.

  • Work closely with InfoSec stakeholders to align sensor deployment with threat detection priorities and mitigation use cases (e.g., lateral movement, domain dominance).

  • Work collaboratively with InfoSec for any issues that they monitor and report on sensor health, telemetry integrity, and coverage metrics to both infrastructure and security teams.

  • Perform necessary corrective actions for each anomalies detected and reported

  • Maintain zero-downtime, zero incidents in change and operation execution through testing, rollback planning, and phased rollout approaches.
  • Silverfort Ring Fencing Implementation

  • Collaborate with InfoSec engineers to analyse and define ring fencing policies that isolate high-risk authentication flows (e.g., service accounts, legacy protocols).

  • Perform pre-deployment impact analysis on authentication workflows across apps, services, and AD-integrated systems to avoid outages or false positives.

  • Serve as a technical liaison between infrastructure, InfoSec, and application teams to align policy scope, ensure testing coverage, and confirm production readiness.

  • Support post-deployment monitoring, false-positive tuning, and exception handling processes.

  • Maintain zero-downtime, zero incidents in change and operation execution through testing, rollback planning, and phased rollout approaches
  • Security-Focused AD Operations and Integration

  • Participate in the continuous security hardening of AD-related services, including AD CS, AD FS, LDAP, and Azure AD Connect, strictly following InfoSec policy.

  • Assist in the implementation and enforcement of privileged access controls, PKI hygiene, federated auth protections, and LDAP channel binding/LDAP-S configurations.

  • Provide technical inputs during security assessments, audits, and risk remediation activities related to identity infrastructure.
  • Incident Response and Threat Support

  • Partner with InfoSec teams to investigate identity-related threats surfaced by MDI or Silverfort, including providing logs, context, and validation.

  • Assist in the triage and containment of suspicious authentication activity, domain controller compromise indicators, or anomalous service behaviour.

  • Develop and maintain structured runbooks for incident response procedures involving AD authentication systems.
  • Governance, Documentation, and Reporting

  • Produce and maintain detailed as-built documentation, change records, and deployment logs to support security audit trails and compliance reviews.

  • Participate in regular status meetings with InfoSec to report on project milestones, sensor health, authentication protection coverage, and risk issues.

  • Contribute to security metrics and dashboards that demonstrate identity protection maturity and control coverage (e.g., MDI sensor deployment %, ring fencing adoption rate, etc.).
  • Skills for Success: 

  • Bachelor’s degree in IT, Computer Science, Software Engineering or equivalent

  • 3–5 years of experience in a mid-level infrastructure/AD engineering or security support role.

  • Experience deploying or supporting security tools in enterprise environments.

  • Strong knowledge of Active Directory and Windows Server administration.

  • Hands-on experience with Microsoft Defender for Identity (formerly Azure ATP).

  • Exposure to Silverfort or other identity protection platforms a plus.

  • Familiarity with network protocols (Kerberos, NTLM, LDAP, RDP).

  • Scripting and automation knowledge (e.g., PowerShell) is desirable.

  • Excellent problem-solving skills and attention to detail.

  • Strong communication skills and the ability to coordinate across teams.

  • Highly responsible with a focus on change safety and business continuity.
  • Are you ready to say hello to BIG Possibilities?


    Take the leap with Singtel to unlock new opportunities and accelerate your growth.

    Apply now and start your empowering career!

    Required Skill Profession

    Computer Occupations


    • Job Details

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    Unlock Your Infrastructure Engineer Potential: Insight & Career Growth Guide


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    Are You Looking for Infrastructure Engineer Workplace Service Job?

    Great news! is currently hiring and seeking a Infrastructure Engineer Workplace Service to join their team. Feel free to download the job details.

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    The Work Culture

    An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Singtel adheres to the cultural norms as outlined by Expertini.

    The fundamental ethical values are:

    1. Independence

    2. Loyalty

    3. Impartiapty

    4. Integrity

    5. Accountabipty

    6. Respect for human rights

    7. Obeying Singapore laws and regulations

    What Is the Average Salary Range for Infrastructure Engineer Workplace Service Positions?

    The average salary range for a varies, but the pay scale is rated "Standard" in Singapore. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

    What Are the Key Qualifications for Infrastructure Engineer Workplace Service?

    Key qualifications for Infrastructure Engineer Workplace Service typically include Computer Occupations and a list of qualifications and expertise as mentioned in the job specification. The generic skills are mostly outlined by the . Be sure to check the specific job listing for detailed requirements and qualifications.

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    Interview Tips for Infrastructure Engineer Workplace Service Job Success

    Singtel interview tips for Infrastructure Engineer Workplace Service

    Here are some tips to help you prepare for and ace your Infrastructure Engineer Workplace Service job interview:

    Before the Interview:

    Research: Learn about the Singtel's mission, values, products, and the specific job requirements and get further information about

    Other Openings

    Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

    Dress Professionally: Choose attire appropriate for the company culture.

    Prepare Questions: Show your interest by having thoughtful questions for the interviewer.

    Plan Your Commute: Allow ample time to arrive on time and avoid feeling rushed.

    During the Interview:

    Be Punctual: Arrive on time to demonstrate professionalism and respect.

    Make a Great First Impression: Greet the interviewer with a handshake, smile, and eye contact.

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    Body Language: Maintain good posture, avoid fidgeting, and make eye contact.

    Turn Off Phone: Avoid distractions during the interview.

    Final Thought:

    To prepare for your Infrastructure Engineer Workplace Service interview at Singtel, research the company, understand the job requirements, and practice common interview questions.

    Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Singtel's products or services and be prepared to discuss how you can contribute to their success.

    By following these tips, you can increase your chances of making a positive impression and landing the job!

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