ACS Systems Engineer: Design, Deployment & Expert Support

CALSIUS SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

CALSIUS SOLUTIONS PTE. LTD. in Singapore seeks an experienced ACS engineer to lead deployment, design, and troubleshooting across Gallagher, LenelS2 OnGuard, HID and Genetec platforms. You will drive integration strategies, ensure security compliance, and mentor junior engineers.

You will also lead commissioning, FAT/SAT testing, and ongoing maintenance plans while engaging with clients to optimize system performance and cybersecurity posture.

Responsibilities

• Front the technical design, architecture planning, and integration strategy for ACS implementations.
• Provide technical guidance, mentorship, and training to junior and mid-level engineers.
• Ensure solutions deployed comply with security, compliance, and enterprise IT standards.
• Act as the L3 escalation point for all complex ACS-related issues across multiple client environments.
• Lead root-cause analysis (RCA), incident resolution, and long-term corrective action planning.
• Diagnose advanced issues involving controllers, credentialing workflows, hardware faults, network routing, and subsystem integrations.
• Engage vendor support teams for deep-dive troubleshooting, bug escalations, and patch management.
• Hands-on expertise in multiple Access Control Systems such as Gallagher, LenelS2 OnGuard, HID / Mercury-based systems, Genetec, Bosch, Suprema / ZKTeco / Axis.
• Ability to configure, integrate, and optimize controllers, readers, credential formats, PIN/biometric workflows, and enterprise permissions across platforms is essential.
• Lead the deployment, configuration, and commissioning of ACS solutions.
• Oversee FAT/SAT, subsystem integration testing, and system handover documentation.
• Validate IT and security architecture during onsite and remote deployment activities.
• Develop preventive maintenance plans, system health checks, and upgrade strategies.
• Ensure proper documentation: design diagrams, wiring schematics, test reports, and change logs.
• Recommend and implement improvements to enhance system performance, reliability, and cybersecurity posture.
• Work directly with enterprise customers to understand operational needs and propose enhancements.
• Support technical workshops, user acceptance tests (UAT), and operator training sessions.
• Communicate clearly during escalations, providing structured updates and solution paths.

Job description

CALSIUS SOLUTIONS PTE. LTD. in Singapore seeks an experienced ACS engineer to lead deployment, design, and troubleshooting across Gallagher, LenelS2 OnGuard, HID and Genetec platforms. You will drive integration strategies, ensure security compliance, and mentor junior engineers.

You will also lead commissioning, FAT/SAT testing, and ongoing maintenance plans while engaging with clients to optimize system performance and cybersecurity posture.