Assistant Project Manager - Irrigation

KOON SENG ENGINEERING AND CONSTRUCTION PTE. LTD.; Singapore; Hybrid; SGD 60,000 - 80,000; Full time

Job summary

A leading engineering firm is seeking an Assistant Project Manager (Irrigation Systems) based in Singapore. The role supports the full project lifecycle from design to handover, requiring experience in irrigation systems and strong communication skills. You'll coordinate with various stakeholders, perform site management, and ensure documentation is up to date. This position offers a competitive salary based on experience and may entail site-based and hybrid work arrangements.

Benefits

Structured learning under an experienced team

Career growth opportunities

Exposure to landmark projects

Qualifications

• Experience in irrigation or MEP works is an advantage.
• Strong understanding of hydraulic principles and control systems.
• Able to work independently and in a cross-department environment.

Responsibilities

• Assist the Project Manager in planning project timelines and targets.
• Coordinate with consultants and contractors to resolve design issues.
• Carry out regular site walks to ensure installation quality.
• Assist in preparing material take-offs and procurement schedules.
• Support preparation of testing and commissioning procedures.

Skills

Project coordination

Communication skills

Problem-solving

Documentation habits

AutoCAD knowledge

Education

Diploma or Degree in Mechanical Engineering, Civil Engineering, Environmental Engineering, Building Services

Job description

Position Overview

The Assistant Project Manager (Irrigation Systems) supports the full project lifecycle of irrigation and rainwater harvesting works — from design coordination and procurement, to site execution, testing & commissioning, and handover. The role requires strong technical understanding, proactive coordination, and the ability to uphold Koon Seng’s standards in workmanship, communication, and documentation.

Key Responsibilities

1. Project Coordination & Planning

• Assist the Project Manager in planning project timelines, milestones, and weekly targets.

• Coordinate with consultants, architects, main contractors, and other trades to resolve design or site issues.

• Ensure all drawings, method statements, materials, and submissions are prepared accurately and on time.

• Participate in technical meetings and prepare minutes of meeting (MOM) with clear action items.

2. Technical & Design Support

• Understand irrigation designs, including:

  • Dripline, sprinklers, valve zoning, QCV, pressure regulation

  • RWH prioritisation, PUB/NEWater make-up integration

  • Control logic, interlocking, timing cycles, and system schematics

• Review shop drawings, hydraulic calculations, and layouts for technical accuracy.

• Assist in preparing conceptual design proposals when required.

3. Site Management

• Carry out regular site walks to ensure correct installation, workmanship quality, and adherence to specifications.

• Identify and raise site issues early; propose solutions instead of waiting for escalation.

• Coordinate with site supervisors, foremen, and subcontractors to plan daily/weekly work.

• Ensure safety standards are followed.

4. Procurement & Materials

• Assist in preparing material take-offs (MTO) and procurement schedules.

• Liaise with suppliers for timely delivery and proper documentation (catalogues, datasheets, test reports).

• Track inventory and ensure critical materials are available ahead of time.

5. Testing, Commissioning & Handover

• Support the preparation of T&C procedures.

• Assist with pressure testing, flushing, sequencing tests, and control system demonstrations.

• Prepare as-built drawings, O&M manuals, and training documents for client handover.

6. Documentation & Administration

• Maintain updated project files, submissions, RFIs, progress reports, variation claims, and related records.

• Prepare weekly progress updates for internal and client meetings.

• Assist in aligning PM–Design–Accounts workflows (claims, variations, procurement, costing).

Requirements

Technical Requirements

• Diploma or Degree in Mechanical Engineering, Civil Engineering, Environmental Engineering, Building Services, or related field.

• Experience in irrigation, plumbing, sanitary, or MEP works is an advantage.

• Strong understanding (or willingness to learn) of hydraulic principles, control systems, and landscape irrigation practices.

Skills & Attributes

• Proactive, resourceful, and willing to take initiative — not waiting to be spoon-fed.

• Strong coordination and communication skills.

• Able to work independently and in a cross-department environment.

• Good documentation habits.

• Able to read drawings (AutoCAD knowledge is a plus).

• Strong problem-solving mindset and willingness to learn complex system designs.

Why Join Us

• Opportunity to work on large-scale, high-complexity irrigation and RWH systems across Singapore’s landmark projects.

• Structured learning under an experienced team with clear growth path to Project Manager or Design Manager.

• Exposure to full design-build-operate lifecycle — technical, commercial, and management experience.

• Fast-paced, supportive environment that values initiative, ownership, and continuous improvement.

Job Details

• Position: Assistant Project Manager (Irrigation Systems)

• Employment Type: Full-time

• Location: Singapore (site-based & hybrid work arrangements)

• Reporting to: Project Manager / Director

• Salary: Competitive, based on experience