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Mechanical Engineer | CFD · FEA · CAD | 2× USPTO Patents | Top Rated Plus Overview: Mechanical engineer specialising in CFD, FEA, and thermal systems, with two granted USPTO patents in cooling technology (US 12,452,991 · US 12,453,048). I design and validate heat exchangers, HVAC systems, centrifugal fans, and refrigerant loops in OpenFOAM, ANSYS Fluent, SimScale, and SolidWorks Flow Simulation. Top Rated Plus on Upwork , 85+ contracts, 3,000+ hours, $275K+ earned. Based in Cape Town, South Africa. Former CTO of a product development company. I don't ship black-box "trust me" reports. Every deliverable carries the mesh, Y+ verification, residual history, and flow-uniformity evidence behind the numbers. Results your team can defend in a design review. And because I've built a Python+OpenFOAM automation pipeline, I run parametric sweeps hand-meshing freelancers can't: on Heat exchanger contracts(2026), a 224,000-point overnight sweep on a centrifugal heat exchanger surfaced a geometry that more than doubled system COP. Core Services CFD: heat exchangers, HVAC, centrifugal fans, ducts, refrigerant loops; conjugate heat transfer, natural convection, multiphase flow with species transport, turbulence modelling (k-ω SST, realizable k-ε, LES where warranted). FEA / Structural: stress, fatigue life, vibration, drop/impact testing, nonlinear and topology optimisation, composites (CalculiX, ANSYS Mechanical). Acoustic / NVH: noise prediction and NVH analysis. CAD & Documentation: SOLIDWORKS parametric modelling, assemblies, sheet metal, weldments, surface modelling, photorealistic rendering, and manufacturing-ready technical drawings. Software: OpenFOAM, ANSYS Fluent, ANSYS Mechanical, SimScale, STAR-CCM+, COMSOL Multiphysics, SolidWorks (CAD + Flow Simulation), CalculiX, Gmsh, AutoCAD, Fusion 360, MATLAB, Python. Selected Work: Heat exchanger (2026) — 224k-point automated CFD sweep on a centrifugal heat exchanger; found a geometry that >2× system COP. Brine–CO₂ corrosion modelling, oil-field pipework (2025–26, active) — multiphase CFD with species transport. USC approved Valve (2025) — backflow-preventer pressure-loss validation to AWWA C510 across six configurations. EvansWerks (2023–26) — 32-month principal-engineer engagement for Product development Patented airless tyre (2026) — coupled FEA + thermal feasibility on an adaptive airless tyre (CalculiX + Gmsh). toronto university wind tunnel (2025) — contraction-section CFD achieving <1% velocity-profile RMS in the working section. Credentials: Mechanical Engineering, advanced simulation focus (in progress) · BSc.Eng (Hons) Mechanical Engineering, UKZN · Aerospace Systems Research Group affiliate since 2019 · 2× granted USPTO patents in cooling-system technology. Industries: Aerospace, Automotive, Energy, Manufacturing, Medical Devices, Consumer Products, HVAC, Electronics Cooling. Working With Me: Send a brief or job link → scope, a fixed or hourly quote, and a stated turnaround within one business day. Every project ships with validated mesh, residual + Y+ + flow-uniformity plots, side-by-side configuration comparison, and a one-page executive summary. Regular updates throughout, designs optimized for manufacturability. Overlap with US, EU, and APAC business hours.

I help building owners, developers, and design teams close the gap between how a building is modeled and how it actually performs — combining building energy modeling with mechanical (MEP) design to reduce energy use, operating costs, and carbon impact. Most freelancers do either the energy model or the mechanical design. I do both, which means the two actually align — and you don't need to coordinate between two separate hires. Why clients work with me: • Integrated energy modeling + MEP design under one roof • Code-fluent across ASHRAE 90.1, NECB, Title 24, IECC, BREEAM, and Passive House • Data-driven, fully documented, on-time deliverables 🖥 Energy Modeling & Sustainability EnergyPlus, DesignBuilder, IESVE, PVsyst · ASHRAE 90.1 / Title 24 / NECB / IECC compliance · energy audits (ASHRAE 211, ENERGY STAR) · 179D support · daylight, thermal comfort & PV feasibility studies 🏢 Mechanical (MEP) Design HVAC system design (VRF, AHU, chillers, boilers, heat pumps) · heating & cooling load calculations · plumbing, fire protection & gas systems · full Revit MEP modeling with clash detection · equipment selection, BOQ & specs 🏊 Specialized: Pool & High-Humidity Spaces Hydraulic design, equipment sizing, and HVAC for pool halls and spas 📊 Engineering Analysis & Automation FEM & CFD simulation · MATLAB modeling · Python automation for engineering workflows 📩 Let's bring your high-performance building vision to life — message me to discuss your project.

✅ TOP-RATED PLUS | 🥇 Top 3% of freelancers | Full-time freelancer on Upwork with extensive professional experience in concept and reverse engineering of Robotics/Automation solutions, either using 3D Printing or Industrial machining processes, Qualitative Detail R&D, 2D/3D CAD Modeling, Photorealistic rendering, ROS2 control, testing, and debugging, AI ML/RL, Metaverse, Blockchain NFT marketplace. ✅ I am a Robotics/Automation Engineer with 5+ years of professional experience in various fields. I am willing to travel internationally for work. I specialize in developing real-time motion control RL-based policies for humanoid robots, such as the Unitree G1, encompassing simulation, gait optimization, hardware deployment, and neural inference. I am proficient in: • Smart robotics engineering (from mechanical to software end-to-end solution) • A passion for robots that solve problems or provide a meaningful purpose • New concept R&D design and development of any SPM system, Automation Conveyor system, Humanoid robot, Robotic Arms, etc. • Path planning and navigation planning system on ROS, Isaac Sim, and MuJoCo simulations • 3D modeling, 2D drawing, and Engineering Drawing using SolidWorks and Inventor • 3D model rendering/animation utilizing Blender, Unity, Unreal Engine, and Keyshot • ML / RL & AI algorithms, LLM model development, and also an expert in RoboDK • Highly experienced in working with actuators and motors in machinery development • Brief evolution in Reverse engineering • Have worked with many companies, from startups to corporate R&D groups • I have an extensive network of industry specialists and vendor suppliers, both domestic and international. If it can be defined, it can be made ✅ As a blockchain developer, I led a team under my supervision. All of them are working nowadays and have many clients. We have worked mainly on services in Crypto NFT, Blockchain, Unity 3D, and Metaverse development. ✅ I am eager to work with you to meet your expectations and build a long-term relationship. Please get in touch with me to discuss your project.

👋 Hi there! I'm Asad, a Top Rated Plus Freelancer on Upwork. ↬ Proudly serving clients globally, I rank among the top 1% of freelancers on Upwork. ↬ I am a Chemical and Material Engineer specializing in Materials, Reverse Engineering, Product Development, Process Optimization, Property Enhancement etc. ↬ Affiliated with the Washington Accord, ensuring top-tier professional standards. ↬ Boasting over 9+ years of extensive experience in the field. ↬ Committed to exceeding expectations and achieving your project goals precisely and excellently. Multidisciplinary Chemical & Polymer Engineer offering end-to-end support across Process Engineering, Material Selection, Formulation Development, and Product/Process Optimization. I combine expertise in Reverse Engineering, FEA, and Simulation Analysis to deliver practical, results-driven solutions for Chemicals, Plastics, Rubbers, Coatings, Adhesives, Packaging, Consumer Products, and Process Industries. My proficiency extends to the in-depth understanding of material behavior and utilizing diverse techniques and software tools to develop prototypes before the actual process is set into motion. Software Expertise Includes: Ansys Polyflow, Aspen Plus V11, Aspen Hysys, Moldex 3D, MINITAB, SOLIDWORKS, PowerShape, Auto CAD, MOLD FLOW, MATLAB, ORIGIN. Materials Expertise: ↬ Elastomers & Rubber Compounding (SBR, NBR, FKM, Silicone, etc.) ↬ Thermoplastic & Thermoset Materials from commodity grade to advance engineering applications ↬ Composites (Nano, Bio, MMC, FMC, CMC) ↬ Epoxy Systems & High-Performance Resins ↬ Foam Materials (PU, EVA, Styrene, Rebounded Foam) ↬ Polymer & Plastic Processing Technologies ↬ Biodegradable and Eco-friendly Materials Chemical Process Engineering: ↬ Process plant design & dynamic simulation (Aspen Plus/Hysys) ↬ Reactor design, scale-up, and performance optimization ↬ Unit operations: distillation, absorption, evaporation, heat exchange, and separation ↬ Energy & mass balance calculations for process integration ↬ Techno-economic analysis, cost estimation, and ROI optimization Process & Manufacturing Capabilities: ↬ Injection Molding (commodity to high-end engineering applications) ↬ Extrusion (profiles, pipes, films, packaging sheets) ↬ Stretch Blow Molding & Extrusion Blow Molding ↬ Compression Molding & Thermoforming ↬ 3D Printing ↬ Sintering & Casting Processes ↬ Superabsorbent Materials (e.g., diapers, hygiene products) ↬ Plastic Pellet Manufacturing ↬ Non-Woven & Woven Fabric Applications ↬ Plastic Bags & Containers (PP, PE, Woven, Oxo-biodegradable) ↬ Organic & Inorganic Chemistry ↬ Reaction Chemistry ↬ Electroplating & Surface Treatments ↬ Thermal & Chemical Process Improvement Product & Material Development: ↬ Sustainable Products ↬ Adhesives & Sealants (Epoxy, Acrylic, Polyurethane, etc., custom base resins and specialty applications) ↬ Dyes, Pigments, and Additives ↬ Masterbatch Formulation and Processing ↬ Nano-Coatings, Ceramic & Powder Coatings ↬ Scented Plastic Product Development ↬ Fibers & Fabrics (Natural, Synthetic & Bio-based) ↬ Textile & Paper Chemicals ↬ Petrochemicals & Additives ↬ Pesticides & Fertilizers ↬ Food Additives & Preservatives ↬ Bio-materials (Sustainable & Biodegradable Alternatives) ↬ High-Strength & Engineering Grade Materials for Structural Use ↬ Reverse Engineering of Market Products ↬ Product Formulation & Troubleshooting ↬ Specialty: Detergents & Sanitizers (All-purpose, Dishwashers, Laundry, Degreasers, Fabric Softeners) Analysis & Characterization: ↬ Mechanical, Thermal, and Rheological Property Testing for precise material characterization ↬ Virtual Prototyping & Product Simulation using FEA and CFD tools ↬ Root-Cause Failure Analysis with data-driven corrective recommendations ↬ Strategic Material Selection aligned with performance, cost, and regulatory requirements ↬ End-to-End Plant Simulation covering reactors, separators, heat exchangers, and complete unit operations Whether you're developing a new product, optimizing a manufacturing process, or seeking innovative material solutions, I offer comprehensive support from concept to commercialization. I assure my clients of receiving authentic, precisely organized, and well-formatted work. All my formulation, material development, and product design skills are backed by substantial industrial experience. With full accountability and confidence, I am a resourceful creator who can embark on projects with minimal input and deliver precision. I prioritize fast project completion and firmly believe in providing complete solutions. Even after completing a project, I remain open to continued communication, welcoming your input and addressing any concerns. Your confidentiality and privacy are of utmost importance to me. Let's chat and discuss what you have in mind to realize. Cheers!

𝐈 𝐡𝐞𝐥𝐩 𝐟𝐨𝐮𝐧𝐝𝐞𝐫𝐬 𝐚𝐧𝐝 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐭𝐮𝐫𝐧 𝐢𝐝𝐞𝐚𝐬 𝐢𝐧𝐭𝐨 𝐫𝐞𝐚𝐥, 𝐦𝐚𝐧𝐮𝐟𝐚𝐜𝐭𝐮𝐫𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 🚀⚙️ If you have a product idea 💡, a broken prototype 🔧, or a design that “looks good in CAD” but won’t survive the real world — that’s where I come in. I lead Efficio Engineering, a product-development studio that designs, simulates, prototypes, and validates real hardware 🧪. My work covers the full pipeline: idea → CAD → simulation → prototype → manufacturing-ready design This means you don’t get a freelancer who only delivers drawings — you get an engineer who makes sure your product actually works when it’s built ✅ 𝐑𝐄𝐀𝐋-𝐖𝐎𝐑𝐋𝐃 𝐈𝐌𝐏𝐀𝐂𝐓 💰 I help clients avoid: • $10k–$50k wasted on failed molds and tooling • Prototypes that break, leak, overheat, or vibrate • Products that work in CAD but fail in the real world My simulation-driven design process catches these problems before you spend money on manufacturing. 𝐖𝐇𝐀𝐓 𝐈 𝐃𝐄𝐋𝐈𝐕𝐄𝐑 🛠️ I specialize in physical product development, including: • Mechanical design for real-world use (enclosures, mechanisms, structures, moving assemblies) • Simulation-driven engineering (FEA, CFD, thermal, vibration) 📊 • Rapid prototyping (3D printing, CNC, laser cutting) 🧩 • Design for Manufacturing (DFM) & Design for Assembly (DFA) • Electro-mechanical integration (motors, sensors, PCBs, batteries, enclosures) 🔌 • Engineering documentation: drawings, BOMs, tolerances, assembly plans 📐 This lets you go from idea → working prototype → production-ready design without switching vendors. 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄 🧠 Most engineers on Upwork do one piece of the puzzle: CAD, or analysis, or electronics. I built Efficio so clients don’t have to manage five freelancers 👥. You get: • A single technical owner • A multidisciplinary engineering team • Designs that are validated, buildable, and production-ready 🏗️ This is why clients come to me for: • Smart consumer devices 📱 • Wearables & fitness products 💪 • IoT and sensor-based hardware 🌐 • Enclosures, mechanisms & structural parts • High-reliability and safety-critical designs 🔒 𝐓𝐎𝐎𝐋𝐒 & 𝐄𝐍𝐆𝐈𝐍𝐄𝐄𝐑𝐈𝐍𝐆 𝐒𝐓𝐀𝐂𝐊 ⚙️ Mechanical & CAD SolidWorks, Inventor, CATIA Simulation & validation ANSYS (Structural, CFD, Thermal, Modal), SolidWorks Simulation, Star-CCM+ Prototyping & manufacturing FDM & resin 3D printing 🖨️, CNC machining, laser cutting, injection-mold-ready design Electronics integration ESP32, STM32, sensors, motors, power electronics, PCBs, BLE / Wi-Fi 📡 𝐇𝐎𝐖 𝐏𝐑𝐎𝐉𝐄𝐂𝐓𝐒 𝐔𝐒𝐔𝐀𝐋𝐋𝐘 𝐖𝐎𝐑𝐊 📋 We define your product goals and constraints I design and simulate the system We prototype and test 🔬 I iterate until it’s manufacturing-ready You get production files, drawings, and supplier support No guessing. No fragile prototypes. No “it only works in CAD”. If you’re serious about building a real, physical product, let’s talk 🤝🚀

Hi, I’m Althea I am a Top Rated Plus Interior Designer and Decorator with over five years of experience creating beautiful, functional spaces for clients worldwide. I have successfully designed and transformed a wide range of projects, including museums, hotels, malls, offices, Airbnbs, showrooms, restaurants, and residential homes. What I Offer I provide full-service interior design solutions, from initial concept development to detailed 3D visualization and precise documentation. My focus is on delivering high-quality, build-ready designs that save time, prevent costly mistakes, and bring your vision to life, whether your style is modern, contemporary, or mid-century modern. ✔ Design Concept Development ✔ Space Planning & Management (circulation, ADA accessibility, functionality) ✔ 2D Floor Plans & Elevations (AutoCAD) ✔ 3D Visualization (SketchUp, 3Ds Max) ✔ High-Quality 3D Renderings (Lumion, V-Ray) ✔ Furniture Sourcing & Styling ✔ Interior Design Article Writing & Editing Why Work With Me? As a Top Rated Plus freelancer, I am trusted by clients for my professionalism, clear communication, and commitment to excellence. I work efficiently without compromising quality, ensuring your investment in design delivers real results. My clients span the USA, Australia, UK, Netherlands, Singapore, Indonesia, and Dubai, each receiving solutions tailored to their unique needs. Beyond freelancing, I mentor aspiring interior design freelancers, helping them build successful careers in the industry. 📩 Let’s create something amazing together. Send me a message to discuss your project. I would love to help you make it happen