Mechanical Design Engineer - Onsite Japan

Neilsoft; Pune District, Ahmedabad District; On-site; INR 4,182,000 - 7,168,000; Full time

Job summary

Neilsoft, based in Tokyo, seeks a Mechanical Design Engineer to lead MEP building services designs for international projects. You will handle HVAC sizing, ducting, and equipment selection, ensuring compliance with global codes.

The role requires 5-8 years of experience, proficiency in reading drawings, and delivering within project timelines. Knowledge of Revit, CAD, and industry tools is essential for coordination and BIM workflows.

Qualifications

• 5-8 years of experience in mechanical design for building services.
• Familiar with international codes and standards (ASHRAE, NFPA, BS, etc.).
• Ability to read architectural and structural drawings for MEP coordination.
• Capable of HVAC load calculations using industry tools.
• Experience with HVAC systems like VRF, chillers, AHU, FCU, and pumps.

Responsibilities

• Study project specifications and technical documents.
• Prepare data, RFIs, and design calculations for mechanical building services.
• Deliver HVAC, public health, drainage, and fire protection designs for international projects.
• Coordinate with teams and clients; perform QA/QC of deliverables.

Skills

HVAC design

Building services

International codes

CAD drafting

Revit

Chiller systems

Duct sizing

BMS controls

Project coordination

VAV/CAV design

Education

B.E or B.Tech. (Mechanical) in Mechanical Engineering

Tools

IES VE

Hevacomp

Trane/Trace 3D+

Carrier HAP

STABRO software

Revit

Job description

Job Location : Tokyo, Japan

Position : Mechanical Design Engineer

Experience : 5 to 8 years

Qualification : B.E or B. Tech. (Mechanical) in Mechanical Engineering

Required Skills & Experience:

• Building services engineering experience from a design consultancy environment or a contractor with design & built environment. Any experience working on Japan projects will be an added advantage.
• Knowledge of International Codes & Standards (ASHRAE, ICC, IMC, CIBSE, SMACNA, NFPA, UK Building Regulation, BS codes, IPC etc.).
• Knowledge of reading and understanding Architectural & Structural design & Drawings
• Good command on performing Cooling & heating Load Calculations using calculations software tools like IES VE, Hevacomp, Trane/Trace 3D+, Carrier HAP etc. to provide HVAC System sizing information for different building applications.
• Knowledge of STABRO software will be added advantage.
• The candidate must be competent with basic designing chiller solutions for buildings. The design of chillers will involve: Air- and Water-cooled chillers (primarily used), and Absorption Chillers- Chiller selection, Cooling Towers, Open / closed circuit, Condenser Water Treatment Plant, Ammonia / Lithium Bromide, etc.
• Good Knowledge in designing Refrigerant based VRF & DX Split HVAC Systems.
• Design Mechanical Ventilation and Air Conditioning Systems, such as Constant and Variable Air Volume (CAV/VAV).
• Well versed with all equipment type & their selection including AHU, FCU, Chiller, Pumps, and Cooling Towers, Fans (VFD), Heating & Cooling Coils, Humidification/Dehumidification System, Heat Recovery, Filtration, Sensors (pressure differential across filters & etc.) and BMS Controls.
• Duct & Fan sizing calculations, air balancing, duct material selection, insulation material selection, duct pressure drop calculations, Pressure rating, Access panel Requirements, Ancillary Devices (volume control dampers, fire dampers), Support Fixings, Anti Vibration mounts VAV/CAV boxes and air terminal devices.
• Capable of calculating & designing Kitchen ventilation, stairwell pressurization, car park ventilation system.
• Design of low-pressure hot water and chilled water system including pipe sizing pressure drop calculation, pump selection commissioning valves, pressurization & expansion vessel sizing, ETS room design.
• Experience in design of public health services (Plumbing Services) like water supply, sanitary & drainage, Storm water Drainage, Natural & Liquid petroleum Gas, Medical gas services etc.
• Experience in designing fire protection services like hydrant system, sprinkler system, fire extinguishers, inert gas suppression system using NFPA/ BS codes. Any experience with hydraulic calculations softwares will be an added advantage.
• Calculations, data sheets, equipment specifications, technical appraisals, reports, Candidates with knowledge about Design of Building Management Systems (BMS) including production of plant schedules operating strategies, single line diagram will be preferred.
• Good understanding of coordination between different MEPF services as well as Architectural & Structural design from engineering & spatial coordination point of view.
• Experience of working on Common data environments like BLUEBEAM, BIM 360, Drop Box, ProjectWise (collaborative tools to work on a model)
• Worked on diff. building sectors residential, commercial, institutional (schools, colleges), healthcare (hospitals), transportation (airports, bus stations, metro stations), data centres etc.
• Knowledge of mostly used Mechanical Engineering design concepts, practices, & procedures.
• Experience with Revit /CAD modelling/drafting of HVAC, plumbing & Fire Protection services
• Basic Knowledge of Project phases & deliverables requirements against each project stage.
• Experience in review and QA/QC of Drawings etc.
• Experience in preparation of BOQ, Technical Specifications & Quantity Take-offs
• Should have skill to manage & prioritize while working on multiple tasks.
• Should have ability to perform under time pressure and ready to adapt project requirement changes with a positive attitude
• Should have good oral and written communication skills.
• Should be self-motivated, proactive and good team player.

Responsibilities:

• Study the project Specification & other technical documents.
• Input data review & prepare RFIs for insufficient data etc.
• To undertake mechanical building services design in the UK, US and international projects through good understanding of regulatory requirements and relevant standards
• Delivery of allocated technical assignments including Heating, Ventilation, Air Conditioning systems, Public Health Systems, Drainage Systems and Fire Fighting Systems
• Participate in Team meetings & Client meetings.
• Review & QAQC of project Deliverables.