Public Sector Cybersecurity Engineer - Protect Systems

Optimum Solutions (Singapore) Pte Ltd.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Optimum Solutions (Singapore) Pte Ltd. is seeking an IT Security Officer/Cybersecurity Engineer with 4+ years of cybersecurity experience to support security operations, engineering, and defence of government systems.

You will review VAPT findings, participate in threat modelling, IAM reviews, and incident response across SIEM, EDR, and cloud platforms. Collaborate with security, engineering, and product teams to strengthen overall security posture.

Qualifications

• At least 4 years of cybersecurity experience.
• Degree in Cybersecurity, Computer Science, or related discipline.
• Strong knowledge of security architecture, threat modelling, and vulnerability management.
• Experience with CI/CD security, Kubernetes, cloud security, IAM, and Zero Trust.
• Familiarity with SIEM, EDR, cloud-native security monitoring, incident response, and threat hunting.
• Scripting in Python or Bash.
• Excellent communication and collaboration skills.
• Certifications such as OSCP, CISSP, or related will be a plus.

Responsibilities

• Perform cybersecurity operational activities including security reporting, dashboarding, compliance documentation, and security control implementation.
• Review and validate VAPT findings, support remediation planning, and track vulnerabilities.
• Participate in threat modelling and security reviews to identify requirements and controls.
• Conduct periodic IAM reviews to ensure least-privilege access.
• Support security incident response, alert triage, investigation, and escalation across SIEM, EDR, and cloud platforms.
• Assist with threat hunting and improve detection rules, incident playbooks, and response runbooks.
• Apply security controls across CI/CD pipelines, Kubernetes, cloud environments, and other platforms.
• Develop POCs and evaluate new cybersecurity tools in labs; automate processes using Python or Bash.

Job description

Optimum Solutions (Singapore) Pte Ltd. is seeking an IT Security Officer/Cybersecurity Engineer with 4+ years of cybersecurity experience to support security operations, engineering, and defence of government systems.

You will review VAPT findings, participate in threat modelling, IAM reviews, and incident response across SIEM, EDR, and cloud platforms. Collaborate with security, engineering, and product teams to strengthen overall security posture.