Total 5 job vacancies by 3si Pte. Ltd.

The engineer is responsible for the installation, configuration, maintenance and troubleshooting of CCTV surveillance systems, access control systems, fence intrusion detection systems(FIDS) and end-user IT equipment such as laptops and desktop computers.

Key Responsibilities

• Assist in design, install, and maintain CCTV, access control and perimeter intrusion detection (FIDS) systems
• Configure and support IP cameras, NVRs & DVRs and video management systems (VMS)
• Manage card access systems (controllers, readers, biometric devices, credentials)
• Assist in deploy and maintain FIDS technologies (sensor cables, IR beams, electric fence systems)
• Integrate CCTV with access control and FIDS for centralized monitoring and alarm handling (iSMS)
• Perform laptop and desktop troubleshooting including:
• OS installation and configuration (Windows/Linux)
• Hardware diagnostics (RAM, HDD & SSD, motherboard, peripherals)
• Software installation, updates, and issue resolution
• Virus/malware removal and system optimization
• Provide basic network support (IP configuration, LAN/WAN connectivity, Wi-Fi issues)
• Troubleshoot and resolve hardware, software, and network-related issues
• Perform preventive maintenance and periodic system health checks
• Maintain documentation (network diagrams, system configurations, asset inventory)
• Provide technical support and user assistance
• Coordinate with vendors and service providers

Role Overview

The Project Manager is responsible for the end-to-end delivery ofsecurity systems projects, including CCTV, Video Management Systems (VMS),access control, and integrated surveillance solutions. The role ensuressuccessful execution within scope, timeline, budget, and compliance with clientand regulatory requirements.

Key Responsibilities

• Lead full project lifecycle: planning, execution, testing, commissioning, and handover
• Manage large-scale security systems deployments (CCTV, VMS, access control, fibre networks)
• Coordinate with clients, consultants, authorities, and subcontractors
• Develop project schedules, resource plans, and technical execution strategies
• Monitor progress, identify risks, and implement mitigation measures
• Ensure compliance with security standards, site safety, and quality requirements
• Manage project budgets, cost control, and financial reporting
• Oversee procurement of security equipment and systems integration
• Lead testing & commissioning (T&C), system integration, and final acceptance
• Maintain proper project documentation and reporting

Requirements

• Degree in Engineering / IT / Project Management or related field
• Minimum 5–10 years of experience in security systems projects (CCTV, VMS, access control, surveillance systems)
• Proven experience managing large-scale infrastructure or mission-critical projects
• Strong knowledge of security system architecture and integration
• PMP/PRINCE2 certification is an advantage
• Excellent leadership and stakeholder management skills

Role Overview

The Sales Manager drives business growth by identifying and securingopportunities in security systems, including CCTV, VMS, access control, andintegrated surveillance solutions.

Key Responsibilities

• Identify and develop new business opportunities in security systems and infrastructure sectors
• Promote CCTV, VMS, access control, and integrated solutions to clients
• Build strong relationships with clients, consultants, and key stakeholders
• Prepare proposals, tenders, and technical-commercial submissions
• Collaborate with engineering teams to develop tailored security solutions
• Manage sales pipeline, forecasting, and revenue targets
• Track market trends, competitor activity, and emerging technologies
• Lead negotiations and contract closures
• Represent the company in industry engagements and client meetings

Requirements

• Degree/Diploma in Business, Engineering, IT, or related field
• Minimum 3–8 years of experience in sales/business development within security systems (CCTV, VMS, access control)
• Strong understanding of security technologies and solutions
• Proven track record in achieving sales targets in technical industries
• Excellent communication, presentation, and negotiation skills

The Quantity Surveyor manages all cost and contractual aspects ofsecurity systems projects, ensuring financial control, profitability, andcompliance with contractual requirements.

Key Responsibilities

• Prepare cost estimates and tender submissions for security systems projects
• Analyze project costs including equipment (cameras, servers, storage, cabling, fibre)
• Evaluate subcontractor quotations specific to security and ELV systems
• Manage progress claims, variation orders (VO), and final accounts
• Track project expenditure and ensure cost efficiency
• Support procurement of security systems and related infrastructure
• Administer contracts in accordance with industry standards
• Provide cost advice to project teams and management
• Maintain proper documentation for claims and financial reporting

Requirements

• Degree/Diploma in Quantity Surveying, Construction Management, or related field
• Minimum 3–8 years of experience in security systems / ELV / ICT project cost management
• Strong knowledge of contracts (FIDIC, SIA, or equivalent)
• Familiarity with CCTV, VMS, access control costing and BOQ preparation
• Strong analytical and negotiation skills

Job Responsibilities:

• Assist in the installation, servicing, and maintenance of security systems such as CCTV, access control, and alarm systems.

• Carry out routine inspections and preventive maintenance at client sites.

• Assist technicians with troubleshooting, minor repairs, and equipment replacement.

• Support cable installation, device mounting, and general site work.

• Maintain tools and ensure work is carried out according to safety procedures.

• Prepare basic service reports after maintenance work.

Requirements:

• Basic knowledge of electrical or electronic systems is an advantage.

• Hands-on, responsible, and willing to work on-site across Singapore.

• Able to work independently and as part of a team.

• Experience in CCTV or security systems is an added advantage.

• Training will be provided.