Thermal Systems Engineer – Heat Exchangers & Plant Design

Placements24; South Africa; On-site; ZAR 600,000 - 900,000; Full time

Job summary

Placements24 is seeking a Mechanical Engineer in Gauteng for a well-established South African process engineering company that designs and supplies heat exchangers and thermal equipment. The role focuses on thermal design, equipment layout, and project execution across client sites.

You will prepare proposals, collaborate with manufacturing teams, and ensure compliance with QA/QC standards while supporting site commissioning and troubleshooting as needed.

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.
• ECSA registration (Pr Eng or Pr Tech Eng).
• Experience in pressure equipment, piping systems, and industrial process plants.
• Knowledge of ASME, TEMA, API, or relevant SANS standards.
• Exposure to commissioning and troubleshooting of thermal systems.

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

Thermal design

Cost estimation

Project execution

Client-facing technical support

Engineering documentation

Education

BEng/BSc/BTech in Mechanical Engineering

Job description

Placements24 is seeking a Mechanical Engineer in Gauteng for a well-established South African process engineering company that designs and supplies heat exchangers and thermal equipment. The role focuses on thermal design, equipment layout, and project execution across client sites.

You will prepare proposals, collaborate with manufacturing teams, and ensure compliance with QA/QC standards while supporting site commissioning and troubleshooting as needed.