Design Engineer

Role Overview

Design Engineer at Al Shirawi Group. The role involves designing and developing heat exchanger products, preparing technical documentation, and supporting manufacturing and quality processes.

Role Purpose

Design and develop fin and tube heat exchangers, coils, condensers, evaporators, and related thermal components. Prepare technical documentation, coordinate with production teams, and ensure products meet customer specifications, manufacturing requirements, and industry standards.

Key Responsibilities

Design & Development

• 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.
• Develop products according to customer specifications and inputs.
• Quantify, size, and measure products to be designed.
• Support product development, customization, and value engineering projects.
• Continuously improve existing product designs for better efficiency, durability, and cost reduction.

Technical Documentation & Analysis

• Use heat exchanger design software and engineering calculation tools.
• Ability to read and prepare engineering drawings and technical documents.
• Maintain design records, calculation sheets, drawings, and revision history.
• Prepare technical proposals based on customer specifications.

Coordination & Collaboration

• Coordinate with production teams to ensure designs are manufacturable and cost-effective.
• Liaise with other designers to agree on safe designs and their fit with aesthetic concepts.
• Collaborate with purchasing teams for material and component selection.
• Work with quality teams to resolve non-conformities and improve product reliability.

Quality & Compliance

• Ensure compliance with relevant standards, codes, and customer requirements.
• Assist in troubleshooting design, production, and performance-related issues.
• Support testing and validation of heat exchanger prototypes and final products.

Qualifications & Experience

• Bachelor's degree in mechanical engineering, or Diploma in Thermal Engineering, or a related field.
• Minimum 5 years of experience in heat exchanger, HVAC, refrigeration, or mechanical product design.
• 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.
• 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.

Skills & Competencies

Technical Skills

• Heat exchanger thermal design.
• Fin and tube coil design.
• CAD modeling and drafting.
• Proficiency in CAD software such as AutoCAD, SolidWorks, Creo, Inventor, or similar.
• BOM preparation.
• Mechanical design calculations.
• Pressure drop calculation.
• Refrigerant circuiting.
• Material selection.
• Manufacturing support.
• Product testing and validation.
• Cost reduction and value engineering.

Preferred Technical 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.

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.
• Strong analytical and problem-solving skills.