Senior Field Engineer (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

• Provide Level 2 technical support for IMACS systems, including CCTV, Access Control, Alarm Systems, and backend IT infrastructure (servers, storage, network).
• Support installation, testing, commissioning & configure network devices such as workstations, routers, and switches. Maintain system components in accordance with project and operational requirements
• Troubleshoot and diagnose basic hardware, software, and local area network (LAN) incidents and system faults, including root cause analysis and escalation to Level 3 or vendors when required.
• Respond efficiently to automated alerts and fault calls, performing initial troubleshooting and escalation within defined operational timelines.
• Support corrective, preventive, and request maintenance activities in line with ITSM processes and SLA commitments
• Perform server/VM administration health monitoring (production and DR environments) PTRG, Server disk space etc.
• Support implementation, migration, and system upgrades, including preparation of implementation plans, migration plans, and rollback procedures
• Support in conducting testing and commissioning activities, including FAT/SAT, and ensure defects are rectified prior to acceptance.
• Liaise with Project Managers, Maintenance Managers, and stakeholders to coordinate site activities, schedules, and issue resolution
• Participate in incident, problem, change management processes and change request.
• Ensure accurate documentation and audit compliance, including: Work instructions / SOPs, As-built documentation & Service reports and incident logs.
• Support high availability operations by ensuring systems meet uptime, resilience, and disaster recovery (DR) requirements

Skills & Experience

• Minimum Nitec/Diploma in Engineering (Electrical/Electronic/IT) or related field preferred
• At least 2 years’ experience in OT/IT environment preferred
• Knowledge of networking (IP/TCP)
• Experience in CCTV, Access Control, and system servers
• Exposure to system security (OS hardening, patching, AV) 
• Relevant IT certifications will be an advantage
• Good communication and positive attitude
• Comfortable with shift work

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.