EXPLORE


6.8
6.8
96%
$75 USD / Hour
・

Turkey (6:13 PM)
・
Joined on January 17, 2025
・
5 Recommendations
$75 USD / Hour
・
I develop products, furniture, mechanical systems and architectural concept models, combining engineering, 3D design, simulation and technical documentation. I help turn an idea, a sketch or an existing design into clear visuals, practical CAD models and well-organised technical deliverables. I am a multidisciplinary engineer and designer with 12+ years of experience across mechanical engineering, manufacturing and building systems, supported by civil engineering studies. As a Verified and Preferred Freelancer, I bring both design and practical engineering experience to projects where appearance, function and construction need to work together. DESIGN, MODELLING & VISUALISATION • Furniture, custom components and bespoke product design • Architectural concept models and 3D presentations of spaces and structures • Product modelling, presentation views and rendered visuals • Parametric CAD developed from sketches, dimensions and reference drawings PRODUCT & MECHANICAL ENGINEERING • Mechanisms, assemblies, enclosures and industrial equipment • Fabricated frames, brackets and sheet metal components • Design for manufacturing and assembly • CAD preparation for CNC machining, fabrication and 3D printing ANALYSIS & BUILDING SYSTEMS • Structural FEA: stress, deformation and load-path assessment • CFD: airflow, ventilation, cooling, heat transfer and pressure loss • HVAC, plumbing, equipment layouts and MEP coordination • Facade details, mounting concepts and thermal movement TECHNICAL DOCUMENTATION • Dimensioned drawings, fabrication details and agreed tolerances • Bills of materials, exploded views and assembly instructions • Engineering reports, technical specifications and manuals • Editable CAD, STEP/STL exports, presentation files and documents in the agreed formats PROJECT EXPERIENCE My portfolio ranges from furniture and balustrade design to retractable mechanisms, a marine gearbox, industrial cooling equipment, an adjustable fireplace chassis, facade details and engineering simulations. This breadth helps me consider form, function, fabrication, assembly and the surrounding system together. HOW I WORK We agree the purpose, design requirements, deliverables and assumptions before starting. I share progress for review, explain technical constraints and keep the files organised for the next stage. Client feedback on my profile highlights clear communication, thorough reports and detailed technical deliverables. The software and workflow are selected around the project. My toolkit includes SolidWorks, Fusion 360, AutoCAD, Revit and ANSYS Fluent/Mechanical. Send me your idea, sketches, reference images or existing files, along with the intended use and deadline. I will review the brief and propose a clear scope, deliverables and delivery plan.
Verifications
On time
100%
On budget
100%
Accept rate
96%
Repeat hire rate
18%

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

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Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

59 kW Rooftop Solar PV Design & Auto

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

30-Ton Cooling System | 3D CAD

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Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Modular Condenser CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Car Park Ventilation CFD Analysis

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD

Retractable Cable Mechanism | 3D CAD
Fast and efficient work. I recommend Gökay for his professionalism.
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Always a pleasure working with Gokay - Always delivers on time and within budget - Highly recommended
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Great Freelancer, always diligent and excellent results every time - will continue to work with Gokay - Highly recommended
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It's our second time using Gokay (which should be a positive enough review in itself). But once again, his considered input and clear communication has made it a pleasure to work with him. A talented engineer, with huge experience and ability with complex software analysis - an absolute must for Computational Fluid Dynamics.
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Experience
Mechanical Engineer | Building Services
Oct, 2018 - Present
•
7 years, 11 months
Department of Construction and Technical Affairs
Oct, 2018 - Present
•
7 years, 11 months
Manage mechanical installation designs and technical documentation for buildings and facilities within the university's investment programme. • Translate institutional needs into mechanical project requirements. • Coordinate preparation of implementation designs and supporting documents. • Review project packages against the institution's technical requirements. Focus: building services, coordination and implementation documentation.

Ankara, Turkey
Oct, 2018 - Present
•
7 years, 11 months
Mechanical Engineer & Core Unit Manager
Jun, 2016 - Oct, 2018
•
2 years, 4 months
Astor Transformer
Jun, 2016 - Oct, 2018
•
2 years, 4 months
Managed core-unit production activities in coordination with production planning and the production manager. • Aligned shop-floor activities with weekly production plans. • Prepared daily, weekly and monthly production reports. • Provided engineering support for work studies, production planning and the introduction of new parts into mass production. Focus: manufacturing operations, production coordination and practical engineering support.

Ankara, Turkey
Jun, 2016 - Oct, 2018
•
2 years, 4 months
Maintenance & Repair Engineer
Oct, 2013 - May, 2016
•
2 years, 7 months
Form Foam Sunger
Oct, 2013 - May, 2016
•
2 years, 7 months
Coordinated maintenance and repair activities for production equipment and workshop teams. • Diagnosed mechanical and electronic faults and organised corrective work. • Created daily maintenance work orders and followed field repairs under occupational health and safety procedures. • Used root-cause analysis to identify recurring faults and preventive actions. Focus: equipment reliability, troubleshooting and maintenance coordination.

Kayseri, Turkey
Oct, 2013 - May, 2016
•
2 years, 7 months
Education
Erciyes Üniversitesi
2008 - 2013
•
5 years
Civil Engineer "Double Major Program"

Turkey
2008 - 2013
•
5 years
Erciyes Üniversitesi
2008 - 2013
•
5 years
Mechanical Engineer

Turkey
2008 - 2013
•
5 years
Qualifications
Certified Mechanical Systems Designer
2016
UCTEA CHAMBER OF MECHANICAL ENGINEERS TMMOB
Experienced in mechanical systems design for buildings, including HVAC (Heating, Ventilation, and Air Conditioning), plumbing, and fire protection systems. Skilled in integrating sustainable solutions and optimizing building energy efficiency. Specialized in mechanical infrastructure design for residential and commercial buildings, ensuring compliance with local codes and regulations while focusing on energy efficiency and cost-effective solutions.
2016
Advanced SolidWorks Certification
2014
SolidWorks Academy
Advanced certification in SolidWorks, demonstrating proficiency in creating 3D models and assemblies for mechanical designs, focusing on precision and functionality.
2014
Bachelor’s Degree in Mechanical Engineering
2013
Erciyes University
Completed a Bachelor's degree in Mechanical Engineering with a focus on industrial design and manufacturing processes. Acquired expertise in solid mechanics, material selection, and finite element analysis
2013
Publications
Geometric modelling and finite element analysis of a cardan shaft
2013
Erciyes University
In this study, a driveshaft used in automotive industry is examined. A driveshaft has a critical importance and it must be capable of transmitting the applied torque safely from the engine to the differential.
2013
Certifications
Basic Numeracy
UK English
P
Preferred Freelancer Program SLA
Freelancer Orientation
AutoCAD 2010
UK English
AI Training - Freelancer Global Fleet