Senior Mechanical Engineer - Heat Exchangers & Thermal Systems

Placements24; South Africa; On-site; ZAR 500,000 - 900,000; Full time

Job summary

Placements24 presents a permanent Mechanical Engineer opportunity in Gauteng for a well-established South African process engineering company specializing in heat exchangers and thermal equipment. The role covers design, costing, manufacture and commissioning of heat exchangers and related process plant equipment, with involvement from concept through to handover.

Candidates should have a BEng/BSc/BTech in Mechanical Engineering, 5+ years of experience in process plants or thermal systems, and

Qualifications

• BEng, BSc, or BTech in Mechanical Engineering.
• 5+ years of mechanical engineering experience within process plant, manufacturing, thermal systems, or industrial environments.
• Experience with heat exchangers, thermal design calculations, and process equipment.
• Proven exposure to cost estimation, tender preparation, and project execution.
• Strong understanding of thermodynamics, heat transfer, and mechanical design principles.
• Proficiency in engineering documentation and client-facing technical support.
• Valid driver's license and willingness to travel to sites as required.

Responsibilities

• Perform thermal design and calculations for plate and shell & tube heat exchangers.
• Prepare technical proposals, tenders, quotations, and cost estimates.
• Develop equipment designs and review engineering drawings and documentation.
• Coordinate engineering activities with contracts, manufacturing, and project teams.
• Provide technical support to clients and sales teams.
• Oversee workshop quality control and manufacturing activities.
• Assist with commissioning, troubleshooting, and site support.
• Manage supplier engagement, procurement activities, and vendor documentation.
• Ensure compliance with QA/QC standards and document control requirements.

Skills

Heat exchangers design

Thermal design

Cost estimation

Tender preparation

Project execution

Engineering documentation

Client-facing support

Education

BEng/BSc/BTech in Mechanical Engineering

ECSA registration (Pr Eng or Pr Tech Eng)

Job description

Placements24 presents a permanent Mechanical Engineer opportunity in Gauteng for a well-established South African process engineering company specializing in heat exchangers and thermal equipment. The role covers design, costing, manufacture and commissioning of heat exchangers and related process plant equipment, with involvement from concept through to handover.

Candidates should have a BEng/BSc/BTech in Mechanical Engineering, 5+ years of experience in process plants or thermal systems, and