Senior HVAC Design Engineer

Senior HVAC Design Engineer

Company: PT Bali Cahaya Makmur (BCM), trading as Markov Architecture
Industry: Architecture, Engineering and Construction
Employment: Full-time, office-based in Bali with project-site attendance as required
Working Hours: Monday to Friday, 9:00 to 17:00
Starting Salary: IDR 25,000,000 gross per month
Performance & Salary Review: After three months

About the Company

PT Bali Cahaya Makmur (BCM), trading as Markov Architecture, is establishing a multidisciplinary Architecture and Engineering Department to deliver coordinated and construction-ready design documentation for projects in Bali and across Indonesia.

We are recruiting one Senior HVAC Design Engineer capable of independently calculating, designing and documenting complete air-conditioning and ventilation systems.

The position reports to the Head of Architecture and coordinates closely with the Senior Project Architect, Structural Engineer, Plumbing and Drainage Engineer, Electrical and ELV Engineer, Site Development Engineer, interior team and construction teams.

Key Responsibilities

HVAC Design and Calculations

• Develop complete HVAC designs from concept through construction documentation.

• Establish design criteria, indoor and outdoor conditions, operating requirements and applicable standards.

• Perform cooling-load, psychrometric, airflow, air-change, space-pressure and equipment-selection calculations.

• Assess sensible and latent loads, solar gain, building-envelope performance, occupancy, equipment, ventilation and infiltration.

• Compare appropriate systems based on performance, energy consumption, capital cost, operating cost and maintenance requirements.

Air-Conditioning Systems

• Design split, multi-split, VRF and VRV systems.

• Design centralised and chilled-water systems where required.

• Select and schedule indoor and outdoor units, AHUs, FCUs, chillers, pumps, cooling towers and associated equipment.

• Determine zoning, diversity, part-load performance and redundancy requirements.

• Size refrigerant and chilled-water piping, calculate hydraulic losses and pump duties, and design condensate drainage.

Ventilation, Air Distribution and Humidity Control

• Design fresh-air, supply-air, return-air, transfer-air and exhaust-air systems.

• Design ventilation for bathrooms, toilets, laundries, service areas, plant rooms and technical spaces.

• Size ductwork, calculate fan static pressure and select grilles, diffusers, louvres, dampers and filters.

• Develop outdoor-air treatment, dehumidification and pressure-control strategies suitable for Bali’s tropical climate.

• Prevent condensation, mould and moisture damage through correct system selection, insulation, vapour control and operation.

• Address acoustic, vibration and coastal-corrosion requirements.

Kitchen, Smoke Control and Building Controls

• Design or coordinate kitchen extract, make-up air, grease ducts, fan selection and exhaust discharge.

• Coordinate kitchen hoods and fire-suppression interfaces with specialist suppliers.

• Design or coordinate pressurisation and smoke-extraction systems required by the approved fire strategy.

• Coordinate HVAC shutdowns, fire and smoke dampers, emergency power, fire-alarm interfaces and BMS requirements.

• Prepare control philosophies, points schedules and sequences of operation.

• Coordinate electrical loads, sensors, valves, dampers and equipment interlocks with the relevant engineers.

The appointed fire engineer remains responsible for the overall fire strategy on projects requiring specialist fire engineering.

Documentation and Coordination

• Prepare complete HVAC plans, schematics, sections, details, equipment schedules, calculations and specifications.

• Prepare plant-room, shaft, louvre, ceiling-space, access and maintenance-clearance requirements.

• Coordinate HVAC services with architecture, structure, ceilings, electrical systems, plumbing, fire protection and interiors.

• Resolve spatial and technical conflicts before documentation is issued.

• Prepare or technically review HVAC BOQs, quantity schedules and tender documentation.

• Participate in design reviews and multidisciplinary coordination meetings.

Construction and Commissioning Support

• Respond to RFIs and resolve HVAC issues during construction.

• Review shop drawings, material submissions, equipment selections, substitutions and contractor proposals.

• Conduct site inspections and identify work that does not comply with the approved design.

• Review pressure testing, flushing, duct-leakage testing, air and water balancing, controls testing and system-performance results.

• Review commissioning reports, as-built drawings and operation and maintenance manuals.

• Resolve performance, humidity, condensation, noise and comfort problems identified during construction or commissioning.

Requirements

• Minimum five years of professional HVAC design experience.

• Bachelor’s degree or higher in Mechanical Engineering, Building Services Engineering or another directly relevant discipline.

• Relevant higher education completed outside Indonesia or substantial and verifiable professional experience working overseas.

• Candidates whose education and professional experience are both exclusively within Indonesia do not meet the required profile.

• Strong written and spoken English.

• Fluent Bahasa Indonesia.

• Advanced AutoCAD ability.

• Ability to independently perform cooling-load, psychrometric, airflow, ventilation, duct-sizing, pipe-sizing, pump and equipment-selection calculations.

• Strong practical experience designing complete air-conditioning and ventilation systems, including split, multi-split and VRF or VRV systems.

• Working knowledge of centralised and chilled-water systems.

• Strong understanding of latent loads, humidity control, condensation prevention and tropical-climate HVAC design.

• Working knowledge of commercial-kitchen ventilation, smoke-control coordination, HVAC controls and BMS interfaces.

• Ability to produce accurate construction-ready drawings, calculations, schedules and specifications.

• Strong multidisciplinary coordination and document-checking ability.

• Practical understanding of HVAC installation, testing, balancing, commissioning, operation and maintenance.

• Working knowledge of applicable Indonesian building, PBG and SLF requirements.

• Working knowledge of SNI 03-6572-2001, SNI 6390:2020 and applicable ASHRAE, SMACNA, AHRI and NFPA requirements.

• Relevant SKK Konstruksi in Ahli Perencanaan Sistem Tata Udara Level 7 or higher.

• Valid STRI or confirmed eligibility to obtain it before assuming statutory professional responsibility.

• Proven project history supported by redacted calculations, drawings and technical documents, a clear explanation of personal responsibility and verifiable professional references.

Strong Advantage

• SKK Level 8, Ahli Madya Perencanaan Sistem Tata Udara.

• Revit MEP and BIM coordination experience.

• Carrier HAP, TRACE 3D Plus or comparable calculation software.

• International villa, resort, hotel, residential-development or commercial-building experience.

• Advanced chilled-water, commercial-kitchen ventilation or smoke-control experience.

• Experience working within an international multidisciplinary design consultancy.

• Membership of PII, ASHRAE or another recognised professional engineering institution.

Compensation & Benefits

• Full-time employment within a new multidisciplinary Architecture and Engineering Department.

• Involvement in varied projects from concept through construction.

• Professional-development opportunities as the department expands.

• Statutory employment benefits in accordance with Indonesian law.

Who We Are Looking For

We are looking for a technically strong and responsible engineer who can independently determine the correct HVAC strategy, complete the necessary calculations and deliver coordinated documentation that can be constructed and commissioned.

The candidate must communicate clearly, identify coordination problems early and take responsibility for technical accuracy. This position is not suitable for candidates whose experience is primarily limited to CAD drafting, BIM modelling, equipment sales, maintenance, installation supervision or following another engineer’s instructions.