Hire the Best Engineering Designers

I help companies design, prototype, and troubleshoot complex hardware systems, especially where mechanical, electrical, thermal, and control systems must work together reliably in demanding real-world environments. I am a former Head of R&D at Northrop Grumman Marine Systems, with experience in turbines, generators, electric motors, rotating machinery, and large-scale power systems. My work also includes combustion systems, battery systems, power electronics, embedded hardware, and full product development from concept through working prototype. I work with startups and established companies on: - hardware system design - rotating machinery and power systems - combustion, thermal, and fluid systems - battery and embedded hardware - controls, instrumentation, and industrial automation - diagnosing and solving difficult engineering problems I focus on practical, buildable solutions with strong attention to reliability, manufacturability, safety, and system integration. I’m often brought in when a project needs senior-level engineering direction to move from concept to a working system efficiently. I studied engineering and business at Stanford University and have 20+ years of experience working with venture-backed startups, helping connect engineering decisions to product development, scaling, and execution.

Iam a MEP Design Engineer with 8+ years of hands‑on experience, specializing in Mechanical, HVAC (Heating, Ventilation, and Air Conditioning), Plumbing, and Firefighting systems for residential, commercial, and industrial buildings. Alongside my engineering expertise, I also provide Architectural 2D/3D Drafting, Floor Plans, and Interior Design services — offering clients a complete package from technical systems to aesthetic layouts.** Whether you need HVAC system layouts, plumbing schematics, load calculations, or full MEP coordination — or detailed architectural drawings, 3D models, and interior space planning — I deliver precision, speed, and reliability in every project. ✅ **Core MEP Engineering Expertise** - HVAC load calculations (ASHRAE, HAP, Elite CHVAC) - Centralized & DX systems design (VRF/VRV, Chiller, Split AC) - Duct design, static pressure calculation, duct sizing (McQuay, Duct Sizer) - Ventilation system design (fresh air, exhaust, pressurization) - Plumbing system layouts, pipe sizing, tank sizing, pump head calculations - Fire sprinkler, hydrant, hose reel system design (NFPA‑compliant) - Fire pump sizing and system flow calculations 🎨 **Architectural & Interior Design Expertise** - 2D Drafting: floor plans, elevations, sections, and details - 3D Modeling & visualization for residential and commercial spaces - Interior layouts: space planning, furniture arrangements, finishes - Permit‑ready construction documentation and as‑built drawings - PDF/Sketch to CAD conversion with clean layering and standards 💼 **Tools & Software I Use Daily** AutoCAD | Revit MEP | HAP | Elite Software | McQuay Duct/Pipe Sizer | Navisworks | Dialux | SketchUp | Lumion | Photoshop | Microsoft Excel 📌 **Why Clients Hire Me** - Deep knowledge of international codes: ASHRAE, IPC, NFPA, SMACNA - Integrated expertise in both engineering and design - Clear, communicative, and deadline‑driven delivery - Complete design packages ready for tender or construction - 100% accuracy in drawings, calculations, and submittals 📩 Send me a message and let’s discuss how I can bring your project to life — from concept to construction, with both technical precision and design excellence.

I'm a Structural Engineer and Architectural Drafting Specialist with 9+ years of experience helping homeowners, contractors, builders, and designers bring their projects from concept to permit-ready documentation and realistic 3D visualization. Are you looking for a reliable professional to create accurate permit drawings, construction documents, or realistic architectural renderings? I specialize in producing clear, coordinated, and professional drawing packages tailored to residential projects across the USA, Canada, Australia, and Europe. 🏅 Associate Member (AMIESL), Institution of Engineers, Sri Lanka (AM-27360) ⭐ Highlights ✔️ BSc in Civil Engineering ✔️ 9+ Years of Professional Experience ✔️ Residential Permit Drawing Specialist ✔️ 1,000+ Completed Architectural Projects ✔️ USA, Canada, Australia & European Projects ✔️ Fast Turnaround & Reliable Communication ✔️ High-Quality Construction Documents & 3D Visualization 🏠 Residential Permit Drawing Services • New House Permit Drawings • Home Additions & Extensions • ADUs (Accessory Dwelling Units) • Garage Conversions • Basement Conversions • Remodeling & Renovation Plans • Existing Conditions & As-Built Drawings • Site Plans & Plot Plans • Floor Plans • Roof Plans • Exterior Elevations • Building Sections • Construction Details 🎨 Architectural Visualization Services • Realistic Exterior Renderings • Realistic Interior Renderings • 3D Floor Plans • Architectural Walkthrough Animations • Presentation Drawings • Marketing Floor Plans 📐 Drafting & Documentation Services • Revit Drafting • AutoCAD Drafting • PDF to CAD Conversion • PDF to Revit Conversion • Construction Documents • Architectural Design Development • Redline Revisions & Drawing Updates 🛠️ Software • Revit • AutoCAD • SketchUp • Lumion • Adobe Photoshop • Adobe Illustrator Why Clients Choose Me • Accurate and Professional Drawings • Strong Attention to Detail • Experience Working From Sketches, PDFs, Markups, and Reference Images • Clean and Organized Drawing Sets • Consistent Project Updates • On-Time Delivery 📩 Send me your sketches, PDFs, markups, or project details, and I'll review your requirements and provide a clear scope, timeline, and quote.

🎯With 50+ successful products and machines designed by me, my clients have generated over💲1M 💰in revenue from selling products, I don't do designs only, I also help you from design to manufacturing and successful launch of your product in the market. I have 4+ years of experience as Mechanical Engineer having expertise in Industrial & Product designing and manufacturing♻️. I deliver precise, designs and drawings for manufacturing ✅Certified SolidWorks Expert ✅Worked with 12 plus big companies. 🎖️Top 10 percent SolidWorks Professional 🏆Winner of Abul Kalam Design Challenge ⭐If you are a startup company we have 6 weeks plan in which we will help you design (household appliances to industrial machines) to bulk manufacturing and shipping (to amazon warehouse or any location). I can also help you to launch your product at Amazon, TikTok Shop, Shopify, eBay and Amazon. ⭐If you are facing any issue in your idea to bring it to life we also provide consultation, how you can take your concept to development and successful launch in the market. Working globally, I’ve collaborated with clients from the US, UK, Germany, and Canada, Australia and Middle East countries, bringing innovative ideas to life — leading to multiple patents and awards. My designs emphasize simplicity and functionality. ⭐My services include: ✅3D Product Design (2D Drawings, 3D Design, Realistic Renders) ✅3D Printing Design ✅Industrial Design ✅Product Development (From designing, testing the product , help to launch the product in market) ✅3D Printing (From printing to shipment at your location) ✅PCB Enclosure Design ✅Injection Mold Design ✅2D to 3D Conversion ✅Sheet Metal Design ✅Children Toy Design ✅Furniture Design ✅2D Drawings ✅CNC Production ✅Part Design ✅G-codes (Geometric) and M-codes (Machine) for CNC machines ✅3D Printing Services (SLA,FDM,MJF) ✅3D CAD Product Design ✅SolidWorks 3D Modeling ✅Design for Manufacturing (DFM) ✅Machine Design ✅Concept Design ✅Prototyping [3D Printing (FDM, SLA, SLS, MJF, SLM)] ✅Custom Part Design ✅Assembly Drawings ✅ CAD Drafting ✅Mechanical Design ✅STL/STEP/STP Files ✅CNC Laser Cutting ✅CAD Software ✅Engineering Design ✅Patent Design ✅Bill of materials (BOM) ✅3D Modeling Check out my portfolio below 🚩 Let’s bring your next innovative product to life. Contact me today and let’s discuss how we can turn your vision into a tangible success. Together, we can design the future. Kind Regards! Ahmad Makwal

🚀 Have a product idea, sketch, prototype, or existing design that needs to become profitable? I turn product concepts into manufacturing-ready designs that actually get built—profitably. Most product designers focus on CAD. I focus on Design for Manufacturing (DFM) and making sure your product can be manufactured at scale without surprises, cost overruns, or timeline delays. 👤 WHO I AM Certified SolidWorks Expert with 5+ years specializing in product design, DFM, injection molding, and manufacturing optimization. I've completed 18+ projects with 100% client satisfaction—helping startups, entrepreneurs, and established brands turn ideas into real products that manufacturers quote accurately. 🔄 MY PROCESS: IDEA → SOLUTION → CAD → PROTOTYPE → SCALE ⚙️ STEP 1: GENERATE SOLUTION Analyze your product idea, identify manufacturing challenges, develop practical cost-effective approach—BEFORE any CAD modeling starts. (Result: Clear roadmap, no wasted effort) 📐 STEP 2: CAD IT INTO 3D Manufacturing-ready SolidWorks models with DFM built in from day one. Draft angles, wall thickness, parting lines, assembly logic that factories understand. (Result: Production-ready files, zero confusion at factory) 🖨️ STEP 3: PROTOTYPE & OPTIMIZE In-house 3D printing for fit testing, design validation, and iteration. Physical prototypes prove your design works BEFORE tooling investment. (Result: Validated design, reduced risk, faster to market) 📈 STEP 4: SCALE IT UP Production-ready technical drawings, material specs, manufacturing guidance for reliable high-volume production. (Result: Smooth manufacturing, confident scaling) ✅ WHAT YOU GET ✓ Manufacturing-ready CAD models (SolidWorks + STEP) ✓ DFM analysis—draft angles, wall thickness, parting strategy, cost optimization ✓ 3D-printable prototypes for testing and validation ✓ Technical drawings with tolerances and material specs ✓ Production guidance & supplier-ready documentation ✓ Photorealistic renders for presentations/investors 🏆 SPECIALIZATIONS ✓ Product Design for New Ideas (idea → prototype → production) ✓ Product Optimization for Existing Designs (cost reduction, manufacturability) ✓ Injection Molding DFM (draft, wall thickness, undercuts, parting strategy) ✓ Tooling & Mold Design Consultation ✓ Sheet Metal Design for Manufacturing ✓ Mechanical Assemblies & Moving Parts Design ✓ 3D Printing Optimization (FDM prototyping and rapid iteration) ✓ Technical Documentation & Manufacturing Drawings 💡 WHY WORK WITH ME? → I think like a manufacturer, not just a designer → DFM-first approach means manufacturability is built in from day one → In-house prototyping = fast iteration, physical validation before investment → 100% job success rate means clients get what they expect → I speak the language of factories (no translation needed) → Full-stack expertise covers idea-to-production journey → Cost optimization through smart design (protects your margins) 🎯 WHO SHOULD HIRE ME? → Startups with product ideas needing validation before manufacturing → Entrepreneurs preparing products for mass production → Brands optimizing existing products for cost & performance → Companies with high-complexity assemblies needing DFM review → Teams needing production-ready CAD and manufacturing support 🚀 LET'S START You have a product idea? Send me your concept, sketch, or existing design. We'll discuss: ✓ Your product vision and goals ✓ Manufacturing challenges & opportunities ✓ Timeline and budget expectations ✓ Exact next steps to bring it to life Then I'll outline how to move forward—with zero fluff, zero surprises. Ready for a FREE consultation? 📩Message me with your product idea. I'll review your concept and provide honest feedback on manufacturability, timeline, and approach. Let's turn your idea into a profitable product. 🎯

A structural architect would love to help you on your next project! I offer architectural/ structural & MEP services for residential, commercial and industrial projects, including: _ Site plan design _ Floor plan design _Architectural package design (elevations, sections, details, etc.) _ Structural design and calculations (Wood, steel, concrete) _ MEP design _ interior design _ 3D modeling and rendering _ Concept design I work with individual landowners, architects, designers, real estate brokers, advertising companies, and more. I'm available 24/7 and committed to delivering your project with utmost responsibility. If you need a reliable partner for your project, don't hesitate to get in touch!