Lead HVAC Engineer

Rejlers International Engineering Solutions is a trusted provider of high-quality engineering and project services. We have been present in Abu Dhabi, UAE, for over 15 years.

Operating from our regional headquarters in Abu Dhabi City and with an own office in Navi Mumbai, India, we support a wide range of operations across the region. Specializing in the Oil & Gas, Refining, Petrochemical, Chemical, and Renewable Energy industries, as well as Industrial Infrastructure such as Buildings and Structures, Power Distribution, and Telecommunications, we serve clients throughout the UAE and the Arabian Gulf.

Our strong track record in Industrial Digitization and AI solutions reflects our commitment to innovation and excellence. With a parent company boasting more than 80 years of engineering expertise, we are proud to bring Nordic engineering heritage to the region blending cutting-edge technology with a longstanding tradition of quality and reliability.

We are now looking for a Lead HVAC Engineer to execute projects and support bids in Abu Dhabi.

Reports To
The Lead HVAC Engineer reports to the Head of Discipline, Mechanical & Piping.

Job Overview
This job function is to be assigned in projects, taking the role of Lead HVAC Engineer. In addition, the job position aims to be a focal point on all aspects of quality-related issues in the engineering projects and to establish good operational relationships and liaise with the client and subcontractor personnel in order to ensure that the project's quality goals and objectives are achieved.

Responsibilities And Duties
The main duties and responsibilities of the Lead HVAC Engineer are but not limited to the following:

• To assist engineers / Design manager / Discipline Manager for the engineering design of the project.
• Ensure verification of source data, concept & FEED drawings / concepts as required.
• Complete responsibility for HVAC engineering, design and deliverables on projects at all stages of the design process. While the primary focus will be on HVAC design, the successful candidate will be a well-rounded Mechanical Engineer with an ability to adapt and handle various mechanical package equipment, ventilation, refrigeration, and related building services systems.
• Conduct HVAC Design and Engineering activities for projects, from initial concept definition phase through engineering studies, FEED, detailed design and commissioning.
• Review Client's technical documentation and requirements.
• Defines engineering requirements and leads on the technical decisions.
• Participates meetings and workshops.
• Explain technical decisions and have constructive discussions with stakeholders of the technical requirements.
• Understand project's scope and required technical activities.
• Prepare and / or review Cooling and Heating Load calculations in accordance with standards.
• Prepares HVAC Design Basis and Specifications.
• Preparation of HVAC Duct routing design and sizing.
• Establish sizing and selection of HVAC air terminals, e.g. grilles, diffuser, registers and louvers.
• HVAC Chilled Water system design, sizing of equipment and piping design.
• Ability to develop HVAC Air Flow Diagram, Control Diagram, Ducting & Instrumentation Diagram, Cause & Effect chart.
• Ability to develop Chilled Water / Refrigeration P&ID and Control Diagram, Cause & Effect chart.
• Preparation of HVAC Sequence of Operation & Control Philosophy.
• Preparation of chilled water/Refrigeration Sequence of Operation & Control Philosophy.
• HVAC Chilled Water / Refrigeration system design, sizing of equipment and piping design.
• Prepares the technical documentation / drawings for HVAC requisition.
• Technical evaluation / clarification of HVAC equipment and technical bid evaluation reports to support order placement.
• Provide specialist engineering support to global projects in a major engineering contractor organization.
• Project technical support – familiarity with risk assessments, design reviews, constructability, HAZOP, etc.
• Technical supervision of supplier design and control of supplier interface, review of Vendor documents plus the co-ordination of interfaces with other engineering disciplines.
• Verify that all designs are to required standards & quality and that the objectives of the project are met.

Qualifications

• Engineering Graduate (BEng, BSc. or MSc.) in Mechanical or Technical related degree.
• Over 15+ years of experience and in the specific discipline or in HVAC engineering and design in oil & gas / industrial sector/ EPC projects. Minimum 8 years in a Senior Role.
• Must have worked in FEED and EPC projects and delivered to ADNOC Group of Companies.
• Extensive design experience, primarily in a contracting environment, working with HVAC equipment.
• Technical knowledge in Industrial Ventilation criteria, systems and calculations, and ability to apply these to various application and processes.
• Experience of HVAC calculation software program (Carrier HAP, ELITE, etc.).
• Experience of HVAC design software program (AutoCAD etc.)
• Knowledge in HVAC equipment and item selection as part of the HVAC design practice.
• Knowledge of International Codes applicable to HVAC design (ASHRAE, AMCA and Industry standards) as well general codes and standards used in UAE (AGES etc.).
• Experienced in all stages of project delivery (Studies, FEED and Detail Engineering, Commissioning)
• Excellent interpersonal, teamwork and communication skills.
• Attention to details and ability of critical thinking.
• Excellent people management skills with solid understanding of customer interface.
• Team player, hardworking, problem solver, self-driven with can-do attitude. Ready to join in short notice is added value.
• Meets with UAE visa requirements.

Our work is guided by our vision: Home of the learning minds. We believe in continuous learning and development. We want to succeed both as individuals and as a company through a common goal: success through continuous learning.

Do you want to join us?
Please apply at once as we proceed with suitable candidates as soon as possible. Submit your application, CV, and salary expectation latest by
16th November 2025.
Rejlers is a Nordic engineering consultancy firm, creating a sustainable future through knowledge. We are a trusted advisor for our customers in the areas of industry, buildings, energy and infrastructure. We operate globally, but know our local markets. With operations in Sweden, Finland, Norway and the United Arab Emirates, Rejlers has 2,700 experts in different technology areas. Over 1,100 employees work in over 20 locations in Finland and the United Arab Emirates. Rejlers' share is listed on Mid Cap, Nasdaq Stockholm.