Senior Service Engineer (Security Systems)

Job Summary As a Senior Service Engineer at Trinet Technologies, you will lead technical service operations, advanced Level-2/Level-3 troubleshooting for integrated security systems. You will act as the technical escalation point for site issues, mentor junior technicians, and partner directly with commercial, industrial, and government clients to ensure system reliability and uptime. What You'll Do Technical Execution • Lead daily field service operations, rapid fault rectifications, and testing/commissioning across integrated security solutions (CCTV, AI video analytics, biometric access control, VMS networks, visitor management, and alarm systems). • Perform advanced L2/L3 diagnostic, root-cause analysis (RCA), and complex troubleshooting on hardware components, network infrastructure, and software integrations. • Execute system upgrades, firmware patches, and network reconfigurations in line with client operational protocols and manufacturer specifications. • Provide technical guidance, on-site escalation support, and hands-on coaching to Field Service Technicians. • Oversee site execution schedules, work quality, and safety compliance for field teams. • Prepare accurate digital service reports for client debriefs • Serve as the primary technical interface for enterprise clients, addressing escalations calmly, methodically, and with high professional integrity. • What We're Looking For • Minimum 3–5 years of hands-on field experience servicing enterprise-level physical security systems • Solid understanding of TCP/IP networking, VLANs, PoE routing, ONVIF/RTSP streaming, firewall configurations, and Windows/Linux server environments. • Strong troubleshooting and problem-solving skills • Leadership and team supervision experience • Good communication and customer service skills • Ability to work independently and manage multiple tasks • Valid Singapore Class 3 / 3A Driving Licence is highly preferred; Class 2B/2A/2 with own motorcycle is an advantage. Why Join Us? Competitive salary package Career growth opportunities Training and professional development Supportive and dynamic work environment Exposure to advanced security technologies and projects Apply Now If you are passionate about security technology and enjoy leading technical teams, we'd love to hear from you. Join Trinet Technologies and be part of a company trusted for over 25 years in delivering reliable security solutions.