Maintenance Engineer

About the role

This role requires comprehensive knowledge of multiple Access Control Systems and deep diagnostic capabilities. You will work closely with technical managers to deliver secure, stable, and scalable maintenance works across mission-critical environments.

• Act as the L1 and L2 escalation point for all technical issues across multiple client environments
• Investigate root-cause analysis (RCA), incident resolution, and long-term corrective action planning
• Diagnose advanced issues, credentialing workflows, hardware faults, network routing, and subsystem integrations
• Engage vendor support teams for deep-dive troubleshooting, bug escalations, and patch management
• Replacement of hardware or upgrade of firmware or patching
• Configure, integrate, and optimize controllers, readers, credential formats, PIN/biometric workflows, and enterprise permissions across platforms
• Develop and implement preventive maintenance plans, system health checks, and upgrade strategies
• Ensure proper documentation: Service reports, update of any design document if any change or upgrade of hardware or firmware

• Diploma / Nitec in IT, Computer Engineering, Electrical/Electronics Engineering, or related field
• Technical certifications in CCTV and Access Control systems are highly recommended
• 3 – 5 years of hands-on experience
• Strong understanding of SQL databases, Windows Server, virtualized environments
• Strong understanding of Door Access Control (maglocks, strikes, sensors, interlocks)
• Strong understanding of identity and access management principles
• Strong understanding of Video Management Software
• Exceptional analytical and problem-solving skills, with the ability to diagnose both software and hardware issues
• Willingness to perform hands-on field work
• Able to perform standby or after-hours support upon fault call activated on rotation basis
• Class 3 license is a must. Company Van will be provided

About us

At Calsius Solutions Pte Ltd, we transcend conventional boundaries, providing a spectrum of world-class services. Our offerings encompass advisory and turnkey solutions, incorporating cutting edge technologies such as electro-optical sensors, facial recognition, access control and integrated command and control platforms.