Construction Supervisor – Generator Enclosures & Structural Steel

Department: Construction / Engineering

Position Type: 12 - 18 months contract

Location: Johannesburg

Job Overview

We are seeking a skilled and experienced Construction Supervisor to oversee generator enclosure assembly, structural steel fabrication, and related installation activities. The successful candidate will be responsible for coordinating site and workshop operations, supervising multidisciplinary teams, maintaining quality and safety standards, and ensuring that construction activities are completed according to project specifications and schedules.

The ideal candidate will have a strong technical background in industrial construction, excellent leadership abilities, and practical experience in generator installation, testing, and commissioning.

Key Responsibilities

1. Generator Enclosure Assembly

• Supervise the assembly of generator enclosures, including acoustic panels, ventilation systems, access doors, and structural frameworks.


• Ensure that assembly activities comply with approved drawings, specifications, and quality standards.


• Coordinate the installation and alignment of enclosure components.

2. Structural Steel Fabrication and Assembly

• Supervise structural steel fabrication, fit-up, bolting, welding, and assembly activities.


• Ensure compliance with structural drawings, dimensional tolerances, and fabrication specifications.


• Monitor fabrication progress and resolve technical issues in coordination with engineering personnel.

3. Engineering Drawing Interpretation

• Read and interpret General Arrangement (GA), fabrication, structural, lifting, and assembly drawings.


• Ensure that work is carried out in accordance with approved engineering documentation.


• Identify drawing discrepancies and coordinate technical clarifications with the engineering team.

4. Quality Control and Inspection

• Conduct dimensional checks and monitor workmanship throughout fabrication and assembly.


• Ensure compliance with Inspection and Test Plans (ITPs), quality plans, and project specifications.


• Identify defects, coordinate corrective actions, and assist with non-conformance resolution.

5. Health, Safety and Environmental Management

• Enforce safe working practices and compliance with applicable occupational health and safety legislation and client requirements.


• Conduct toolbox talks and monitor adherence to approved safety procedures.


• Identify workplace hazards and implement appropriate corrective and preventive measures.

6. Workforce Supervision

• Supervise and coordinate artisans, welders, boilermakers, fitters, electricians, and general assistants.


• Allocate daily tasks, monitor productivity, and ensure efficient utilisation of labour and equipment.


• Promote teamwork, accountability, and a strong safety culture.

7. Planning and Production Scheduling

• Develop and coordinate daily and weekly work plans.


• Monitor production progress against project schedules and targets.


• Identify potential delays, implement corrective measures, and report progress to project management.

8. Welding and Fabrication

• Apply practical knowledge of welding processes, fabrication techniques, and applicable standards.


• Monitor welding and fabrication activities to ensure compliance with approved procedures and specifications.


• Identify fabrication defects and coordinate the necessary remedial work.

9. Material and Inventory Control

• Monitor the availability of materials, components, tools, and consumables.


• Verify material requirements before commencing work.


• Coordinate material movements and minimise unnecessary wastage.

10. Lifting and Rigging Operations

• Review lifting drawings and understand rigging requirements for heavy components.


• Ensure that lifting activities are performed in accordance with approved lifting plans and safety procedures.


• Verify the safe handling, positioning, and movement of generator enclosure components.

11. Technical Problem-Solving

• Identify and resolve fabrication, assembly, and installation challenges.


• Coordinate technical queries with engineering, quality, and project teams.


• Implement practical solutions while maintaining safety, quality, and schedule requirements.

12. Logistics and Dispatch

• Coordinate the preparation of completed generator enclosures for transportation.


• Verify dimensions, weights, lifting points, and dispatch readiness.


• Ensure that required inspections and documentation are completed before dispatch.

13. Documentation and Reporting

• Prepare daily activity reports and production progress reports.


• Maintain inspection records, non-conformance reports (NCRs), and punch lists.


• Ensure accurate documentation of work completed, outstanding activities, and corrective actions.

14. Leadership and Team Development

• Motivate and guide teams to achieve production and project targets.


• Provide on-the-job guidance and support to junior supervisors and artisans.


• Encourage continuous improvement, effective communication, and professional development.

Minimum Qualifications

• Engineering qualification in Mechanical or Electrical Engineering.

Experience and Technical Requirements

• 5–10 years of experience in industrial construction, with a proven track record in a supervisory role.


• Practical experience in generator enclosure assembly and structural steel fabrication.


• Experience in generator installation, testing, and commissioning.


• Ability to interpret engineering drawings and technical specifications.


• Knowledge of welding, fabrication, dimensional inspection, and quality control processes.


• Understanding of occupational health and safety requirements, lifting operations, and rigging practices.


• Experience in workforce supervision, production planning, and progress reporting.