Design Engineer

Key Responsibilities

Design and develop fin and tube heat exchangers , coils, condensers, evaporators, cooling coils, heating coils, and related components. Prepare technical drawings, 3D models, BOMs, and manufacturing documentation. Select appropriate tube materials, fin materials, fin spacing, tube diameter, circuiting, headers, and connection details.

Use heat exchanger design software and engineering calculation tools. Support product development, customization, and value engineering projects. Coordinate with production teams to ensure designs are manufacturable and cost-effective. Review customer specifications and prepare technical proposals. Assist in troubleshooting design, production, and performance-related issues.

Ensure compliance with relevant standards, codes, and customer requirements. Work with quality teams to resolve non-conformities and improve product reliability. Support testing and validation of heat exchanger prototypes and final products. Maintain design records, calculation sheets, drawings, and revision history. Collaborate with purchasing teams for material and component selection.

Continuously improve existing product designs for better efficiency, durability, and cost reduction. Required Qualifications Bachelor’s degree in mechanical engineering , or Diploma in Thermal Engineering, or a related field. Experience in heat exchanger design, preferably in fin and tube heat exchangers . Strong understanding of heat transfer, thermodynamics, fluid mechanics, and HVAC/R systems .

Knowledge of coil design, refrigerant circuits, air-side and fluid-side pressure drop calculations. Proficiency in CAD software such as AutoCAD, Solid. Works, Creo, Inventor, or similar . Ability to read and prepare engineering drawings and technical documents. Good understanding of manufacturing processes such as tube bending, fin punching, expansion, brazing, soldering, welding, and assembly.

Familiarity with materials such as copper, aluminium, stainless steel, galvanized steel, and coated fins. Strong analytical and problem-solving skills.

Preferred Skills

Experience with heat exchanger selection or design software. Knowledge of HVAC, refrigeration, chiller, AHU, condenser, evaporator, and coil applications. Familiarity with standards such as ASHRAE, AHRI, ASME, EN, ISO , or relevant industry codes. Experience in design optimization for performance, pressure drop, noise, corrosion resistance, and cost.

Knowledge of refrigerants, including low-GWP and natural refrigerants. Understanding of ERP/PDM systems and BOM management. Experience with prototype testing, performance validation, and failure analysis. Technical Skills Heat exchanger thermal design Fin and tube coil design CAD modeling and drafting BOM preparation Mechanical design calculations Pressure drop calculation Refrigerant circuiting Material selection Manufacturing support Product testing and validation Cost reduction and value engineering Soft Skills Strong communication skills Team collaboration Attention to detail Problem-solving mindset Ability to manage multiple projects Customer-focused approach Willingness to learn and improve designs continuously Experience Required Minimum 5 years of experience in heat exchanger, HVAC, refrigeration, or mechanical product design is preferred.

Development of products as per customer specification and inputs. Quantification, sizing and measurement of the products to be designed. Liaising with other designers, including architects, to agree on safe designs and their fit with the aesthetic concept of the construction; Making drawings, specifications and computer models of structures for building contractors.