System Engineer (Day 2, Site Location: Changi)

About Certis

Certis is a leading outsourced services partner that designs, builds, and operates smart, integrated solutions across security, facilities management, and customer experience. Headquartered in Singapore with a growing presence in Australia and Qatar, we harness the power of technology—from AI to Robotics—to deliver critical services that protect lives and enable communities to thrive.
 
At Certis, your work has purpose. You’ll be part of a mission that goes beyond operations—shaping safer, smarter, and better outcomes for people and businesses. We offer diverse career pathways, invest in your growth, and empower you to make a meaningful difference.
 
If you're ready to build the future, your journey starts here—with us.

Life at Certis

Power a Smarter, Safer World with Tech: We build purposeful solutions that serve, protect, and empower—driven by trust, powered by people.

Shape the Future: Take charge of your development and offering diverse opportunities across roles, borders, and technologies. Work alongside leaders who invest in your potential, and a culture that will take you further.

Where Purpose Meets Possibility: From safeguarding communities to shaping smarter, more sustainable futures, we’re committed to creating long-term value, not just for our customers, but for society and the environment.

Duties & Responsibilities

• Involve in the project or managed services related with IT infrastructure and data centre whenever required.
• Perform Installation, Implementation, Configuration and testing of system/storage equipment & setup
• Perform system health check, performance tuning, OS hardening, patching and updating on servers/VM
• Plan for migration, document and execute the migration plan
• Support vulnerability assessment and penetration testing (VAPT) remediation.
• Provide Level 2 / Level 3 support for system incidents, problems, and service requests.
• Ensure system availability, reliability, and compliance with SLA requirements.
• Develop implementation plan, migration plan and acceptance test plan for the project.
• Conduct acceptance test with users and address the testing findings/issues
• Provide system architecture design and planning for new IT infrastructure deployments in both hosted and cloud environments
• Work closely with Project Managers in planning the implementation tasks
• Develop As-built documentation for handover

Skills & Experience

• Qualification & experience: Diploma in IT/Computer Science with ~3 years in IT, including at least 2 years in systems and security.
• Core technical skills: Hands‑on with Windows Server and/or Linux, virtualization (VMware/Hyper‑V), system monitoring tools, and basic networking (IP/TCP).
• Security exposure: Knowledge of systems security, with hands‑on experience in OS hardening, patching, updates, and antivirus preferred.
• Work environment & mindset: Comfortable working independently and in teams, detail‑oriented, good documentation habits, and willing to support on‑call/after‑hours when needed.
• Nice‑to‑haves: Certifications (Microsoft, VMware, ITIL, cloud), experience with regulated/audit environments, security systems/OT, or 24×7 mission‑critical operations.

Recognition & Reward

Be part of a purpose-driven, values-led workplace that fosters collaboration, respect, and a culture of continuous growth.

Enjoy a competitive remuneration package with performance-based incentives and eligibility for annual bonuses.

Benefit from comprehensive medical and dental coverage, along with holistic wellness initiatives and dedicated mental health support.