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HVAC systems designer with embedded BMS/controls — from concept to commissioning I design HVAC systems and the controls that make them reliable in real buildings: residential, warehouses, offices, and commercial facilities. With 23+ years in HVAC engineering and 12+ years in cost-effective embedded controllers (ESP32, Arduino, Raspberry Pi), I cover both the mechanical design and the automation layer — so the system works as intended after installation, not only on paper. What I typically deliver • HVAC design in Autodesk AutoCAD MEP (heating, cooling, ventilation) • Building controls / BMS logic for HVAC, boiler rooms, and heat pumps • Custom controllers and PCB prototyping when off-the-shelf hardware is a poor fit • Energy modeling with OpenStudio + EnergyPlus for loads and efficiency decisions • Legacy TAC Xenta / Schneider Electric Xenta and TAC Vista application work (16+ years) How I work Designs I create are often assembled and maintained under my supervision, so decisions account for installability, service, and long-term reliability — not just drawings. Recent related work on Upwork includes greenhouse ventilation calculations, energy simulation for a resort dome project, and embedded/PCB control work for sensors and flow systems. If you share building type, climate/location, and whether you need design, controls, energy model, or all three — I’ll reply with a clear scope and approach.

With 8+ years of professional experience on Upwork, I bridge the gap between technical architectural precision and high-end photorealistic aesthetics. I specialize in delivering construction-ready BIM models and premium visualizations for residential and commercial projects across the USA and Europe. My core strength is my versatility in international standards: whether your project requires the Imperial system (feet/inches) for a US commercial space or European metric standards, I ensure 100% accuracy and compliance with local documentation requirements. What I bring to your project: 🔹 BIM & Technical Documentation (Archicad): I build intelligent 3D models (BIM) that go beyond simple 2D lines. I provide full sets of drawings, including floor plans, sections, elevations, and detailed cabinetry sets. I am an expert in converting PDF sketches into clean, organized Archicad files. 🔹 Premium Visualization (3ds Max + Corona): I create atmospheric, high-end renders that help developers and realtors sell properties faster. I specialize in realistic lighting and complex material shading, with a focus on Hospitality, Retail, and Residential interiors. 🔹 Real Estate Marketing Materials: Creation of professional marketing floor plans and sales brochures that communicate design value to potential buyers. Technical Stack: Archicad (Expert: BIM modeling, GDL, Documentation sets) 3ds Max + Corona Renderer (Advanced: Photorealistic lighting & materials) Standards: Full proficiency in both Imperial (US) and Metric (EU) systems. Communication & Reliability: Having collaborated with international architectural firms for over 8 years, I value deadlines, provide transparent updates, and require minimal supervision. I am available for long-term partnerships. ACADEMIC QUALIFICATIONS Taras Shevchenko National University of Kyiv 1985-1991 master degree, engineering

Engineer with 8 years experience. I have been involved in CFD and FEA calculations in the Ansys package for the last 5 years. I have experience in designing parts using various manufacturing methods (3D printing, CNC processing, sheet metal, injection molding). Independently developed and implemented many projects for the design of industrial premises. Developed and supervised the laying of water communications, electrical wiring, ventilation.

I have over 8 years of experience in the industrial automation. I have taken part in large project design and implementation (Food industry, Machine industry, water treatment, chemical processes) of the base of hardware and software of such producers as SIEMENS, Schneider-Electric, Rockwell Automation, Codesys-platform Software: Unity Pro, SoMachine, Codesys, Step 7, Tia Portal, RSLogic 500, Studio 5000, Connected Components Workench ch etc. SCADA, HMI: Vijeo Citect, Vijeo Designer, WinCC, Indusoft, Vijeo Designer etc. Configuration and Commissioning Soft Starters and VFDs.

📦𝗚𝗲𝘁 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝗷𝘂𝘀𝘁 𝗮 𝘀𝘁𝗮𝗻𝗱𝗮𝗿𝗱 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗮 𝗯𝗼𝗶𝗹𝗲𝗿𝗽𝗹𝗮𝘁𝗲 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵 𝘁𝗼 𝘀𝗼𝗹𝘃𝗶𝗻𝗴 𝗮𝗻 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗽𝗿𝗼𝗯𝗹𝗲𝗺. 📜 Choosing my services, you can be sure that the solution for your project will be developed using the following advanced techniques: 🔸A balanced approach to collecting all incoming data and clarifying individual issues 🔸Proactive involvement of me in setting tasks and formulating well-defined work results 🔸Determination of the basic stages of work, sequence of execution and assessment of terms already at the stage of agreement of the contract 🔸My openness to providing individual clarifications and consultations in the process of project implementation 🔸Orientation to maintaining the quality-price balance and a client-oriented approach 💡The process of engineering development requires innovative flexible approaches and high accuracy of calculations, but this does not mean that it cannot be made clear and convenient for the end user. I worked my way up from an ordinary engineer to a chief project engineer and head of the project department. My professional experience of more than 13 years has taught me to solve a wide pool of engineering problems with the development of complex solutions from the stage of collecting input data to putting the facility into operation. 🔎You have found the right specialist if you need the following services: 🔹Process Engineering | Mechanical Engineering | Energy Engineering 🔹Industrial | Hydraulic | Chemical Engineering 🔹Renewable energy | Heat & Power | CHP | Boiler | HVAC | MEP 🔹Biogas | Biomethane | Anaerobic digestion | CO2 | Renewable natural gas (RNG) 🔹Engineering Design | Innovative Design | Direct Engineering 🔹Product Design 🔹CAD | 3D design | 3D modeling | 3D assemblies | 2D Drafting | 2D Drawings | BIM modeling 🔹Engineering Tutoring & Consultation 🔹Engineering Calculations & Analysis 📢My clients have a lot to say about me: 🏅"𝘖𝘭𝘦𝘹𝘢𝘯𝘥𝘳 𝘩𝘢𝘴 𝘢 𝘨𝘦𝘯𝘶𝘪𝘯𝘦 𝘥𝘦𝘴𝘪𝘳𝘦 𝘢𝘯𝘥 𝘶𝘯𝘥𝘦𝘳𝘴𝘵𝘢𝘯𝘥𝘪𝘯𝘨 𝘰𝘧 𝘵𝘩𝘦 𝘧𝘶𝘯𝘥𝘢𝘮𝘦𝘯𝘵𝘢𝘭 𝘦𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨 𝘳𝘦𝘲𝘶𝘪𝘳𝘦𝘥 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘢 𝘱𝘳𝘰𝘫𝘦𝘤𝘵 𝘴𝘶𝘤𝘤𝘦𝘴𝘴𝘧𝘶𝘭. 𝘐 𝘸𝘰𝘶𝘭𝘥 𝘨𝘳𝘦𝘢𝘵𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥 𝘩𝘪𝘴 𝘴𝘦𝘳𝘷𝘪𝘤𝘦𝘴." – Azolla Proxima team leader (XPRIZETM participant) 🏅"𝘖𝘭𝘦𝘬𝘴𝘢𝘯𝘥𝘳 𝘩𝘢𝘴 𝘣𝘦𝘦𝘯 𝘨𝘳𝘦𝘢𝘵 𝘵𝘰 𝘸𝘰𝘳𝘬 𝘸𝘪𝘵𝘩. 𝘏𝘦 𝘪𝘴 𝘷𝘦𝘳𝘺 𝘤𝘰𝘮𝘱𝘦𝘵𝘦𝘯𝘵 𝘪𝘯 𝘦𝘷𝘦𝘳𝘺𝘵𝘩𝘪𝘯𝘨 𝘸𝘦 𝘩𝘢𝘷𝘦 𝘢𝘴𝘬𝘦𝘥 𝘧𝘰𝘳. 𝘏𝘦 𝘪𝘴 𝘢𝘭𝘴𝘰 𝘷𝘦𝘳𝘺 𝘱𝘢𝘵𝘪𝘦𝘯𝘵 𝘸𝘩𝘦𝘯 𝘪𝘵 𝘤𝘰𝘮𝘦𝘴 𝘵𝘰 𝘵𝘩𝘦 𝘮𝘶𝘭𝘵𝘪𝘱𝘭𝘦 𝘴𝘮𝘢𝘭𝘭 𝘤𝘩𝘢𝘯𝘨𝘦𝘴 𝘢𝘴 𝘸𝘦 𝘪𝘮𝘱𝘳𝘰𝘷𝘦 𝘰𝘶𝘳 𝘥𝘦𝘴𝘪𝘨𝘯𝘴." – SSI Micro Ltd CEO 🏅"𝘞𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘖𝘭𝘦𝘬𝘴𝘢𝘯𝘥𝘳 𝘰𝘷𝘦𝘳 𝘵𝘩𝘦 𝘭𝘢𝘴𝘵 6 𝘮𝘰𝘯𝘵𝘩𝘴 𝘰𝘯 𝘵𝘩𝘦 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 𝘰𝘧 𝘢𝘯 𝘈𝘋 𝘱𝘭𝘢𝘯𝘵 𝘩𝘢𝘴 𝘣𝘦𝘦𝘯 𝘢 𝘷𝘦𝘳𝘺 𝘱𝘰𝘴𝘪𝘵𝘪𝘷𝘦 𝘦𝘹𝘱𝘦𝘳𝘪𝘦𝘯𝘤𝘦. 𝘖𝘭𝘦𝘬𝘴𝘢𝘯𝘥𝘳 𝘪𝘴 𝘢𝘯 𝘦𝘹𝘱𝘦𝘳𝘪𝘦𝘯𝘤𝘦𝘥 𝘤𝘩𝘪𝘦𝘧 𝘦𝘯𝘨𝘪𝘯𝘦𝘦𝘳 𝘸𝘪𝘵𝘩 𝘸𝘪𝘥𝘦 𝘦𝘹𝘱𝘦𝘳𝘪𝘦𝘯𝘤𝘦 𝘪𝘯 𝘵𝘩𝘦 𝘱𝘳𝘰𝘥𝘶𝘤𝘵𝘪𝘰𝘯 𝘰𝘧 𝘣𝘪𝘰𝘨𝘢𝘴. 𝘞𝘦 𝘢𝘳𝘦 𝘩𝘢𝘱𝘱𝘺 𝘵𝘰 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥 𝘖𝘭𝘦𝘬𝘴𝘢𝘯𝘥𝘳 𝘧𝘰𝘳 𝘺𝘰𝘶𝘳 𝘱𝘳𝘰𝘫𝘦𝘤𝘵." – Globine Energy CEO 🗝️Key skills and abilities (HARD SKILLS): ✅ Proficiency in Engineering & Mechanical Design Principles: Process flow diagram (PFD) | Process & Instrumentation diagram (P&ID) | 3D models, assemblies, parts | 2D drawings, Bill of quantities (BOQ), Bill of materials (BOM) | Data sheets | ✅ Computer-Aided Design (CAD): SOLIDWORKS | Autodesk AutoCAD | Inventor | Fusion360 | Plant 3D | Onshape. ✅ Engineering Calculation, Simulation Analysis: Thermal and Fluid Dynamics Analysis | Hydraulic calculation | Pressure loss calculation | Stress Analysis | Mass-energy balance ✅ Product Data Management (PDM) ✅ Design review: Final check | Review updates implementation | Work on mistakes | Lessons learn 🏄🏻‍♂️ Interpersonal skills (SOFT SKILLS) ➢ Collaborative Problem-Solving ➢ Creative Thinking and Innovation ➢ Effective Communication ➢ Adaptability and Flexibility ➢ Attention to Detail ➢ Time Management and Prioritization ➢ Empathy and User-Centric Design ➢ Leadership and Influence ➢ Continuous Learning and Growth Mindset 📥Click to send a Direct Message or send an Invitation to agree on all the details of your project in direct communication. 🏷️Related tags Engineering design, Engineering management, Engineering Team Lead, Chief Design Engineer, Time management, Accounting, Research & Design, Calculation, Process industry, Renewable energy, Heat & Power, CHP, Boiler houses, Anaerobic Digestion, Biogas, Biomethane, CO2, District heating, HVAC, Plumbing, Water and sewerage networks, SolidWorks, AutoCAD, Plant 3D, Inventor, Fusion360, Microsoft 365, Word, Excel, Teams, OneDrive, SharePoint, CAD, 3D, 2D, Assemblies, Models, Drawings, PFD, P&ID, Layouts, Shop drawings, As-built, BOQ, BOM. ⏱Last update: June 23, 2026

Greetings! My name is Sergii, and I’m a Xamarin Certified Mobile App Developer with more than 6 years of experience. I started my way in web and mobile development back in 2012 as a Casual Game Developer working for FIVE-BN (Alawar Division), and gathered some beneficial knowledge on how to create game logic, optimizing game performance, game deployment, and bug fixing. Later on, I have worked as a C# Developer in SoftReactor LLC, where I’ve gained and polished my skills related to ASP.NET Core, C#, MySQL, WPF, XAML. At almost the same time, I’ve started my own company - HeadWorks, where till present days my team and I have been creating web, mobile, hardware (embedded) projects, helping other companies to implement and convert their ideas into reality. In 2014 I’ve discovered Xamarin and incorporated it into what I have been doing - cross-platform mobile applications for iOS and Android. The tech-stack and skills I have acquired: - Cross-platform mobile app development using Xamarin: Xamarin.Forms, Xamarin.Native (Android, iOS), MVVM, Prism, MVVM Cross, MVVM Light, MVVM Fresh, ReactiveUI, AJAX - Creating complex enterprise-level custom solutions using C#, C++, MySQL, ASP.NET MVC, .NET Framework (CLR), .NET Core (CoreCLR), .NET GC, Azure, REST API, Web API, Google Maps API, Twitter API - Front-end development: HTML, CSS, JS, Angular - Facebook SDK, Visual Studio - Version control systems: Git, Github, SVN - iBeacons, Eddystone (estimote, kontakt.io) - Payment processors (Stripe, PayPal, Apple Pay, Webmoney, Yandex.Money) - Analytics and crash analytics (HockeyApp, Microsoft Insights, Firebase) I have recently started acquiring new skills on Objective-C, Swift, Java, Xcode and am planning on concreting the knowledge in the future. I’m open to everything new in the world, love to learn and prove myself, so all your queries and projects are greatly appreciated, and I’m ready to support you around the clock. I’ve been working with both individual clients, private and public companies (enterprise clients) and have helped them to bring their business ideas, thoughts, projects into life. Hesitation is the enemy of success, so send me the message, and let’s get your project into shape!