Hire the Best Engineering Designers
in Sri Lanka

Hello, I'm Dulanga. I will make your IDEA 💡 into a REAL PRODUCT 💲💲 using cutting-edge CAD technology and years of experience in mechanical design engineering and manufacturing. My normal process of product development is as follows; ✔️ Gathering customer requirements ✔️ Engineering point-of-view and feasibility study ✔️ Concept development ✔️ Detailed CAD development ✔️ Engineering evaluation ✔️ Prototyping Please 𝐈𝐍𝐕𝐈𝐓𝐄 me and drop me a message, I will reply shortly. THANK YOU . Brief about myself ⭐ BSc. Mechanical Engineering Degree specializing in Mechatronics ⭐ Member of Local and Global engineering bodies ⭐ Solidworks Expert ⭐ Machine Designer What will you get ⭐ Engineering Drawings for Fabrications ⭐ Bill Of Material ⭐ Detailed CAD Part & Assembly Files ⭐ FEA & CFD Based Product Analysis ⭐Realistic Renderings ⭐Online Sourcing Tools ⭐ Solidworks Premium ⭐ Ansys Fluent ⭐ Keyshot ⭐ Matlab ⭐ Bambulab Studio ⭐ Solidworks Simulation ⭐ Solidworks Motion Analysis ⭐ Autodesk Inventor ⭐ Autodesk AutoCAD ⭐ Festo Fluidsim ⭐ MasterCAM ⭐ SolidCAM Prototype Fabrication ⭐3D Printing ⭐CNC Machining ⭐Sheet metal laser cutting and bending ⭐Weldments Completed Projects ✔️Precision metal parts for CNC machining ✔️UAV / Drone ✔️Gear Boxes ✔️Patented Products ✔️Automotive components ✔️Mixers ✔️Robots ✔️Consumer Electronic Enclosures ✔️3D Printing Parts ✔️Mechanical Designs ✔️Innovative Produts ✔️AND MORE...

Are you looking for a 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗿 who can take your idea from concept to a 𝐦𝐚𝐧𝐮𝐟𝐚𝐜𝐭𝐮𝐫𝐢𝐧𝐠 𝐫𝐞𝐚𝐝𝐲 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 without guesswork or endless revisions? Hi, I’m a Mechanical Design Engineer and professional Product Designer specializing in 𝟑𝐃 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐦𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐚𝐥 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐚𝐥 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐚𝐧𝐝 𝐒𝐨𝐥𝐢𝐝𝐖𝐨𝐫𝐤𝐬 𝐛𝐚𝐬𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭. I work with 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬, 𝐞𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫𝐬, 𝐚𝐧𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐭𝐞𝐚𝐦𝐬 to transform ideas into functional, production-ready products that perform reliably in the real world. If you need a Product Designer who understands engineering, usability, and manufacturability, you’re in the right place. What do clients says about me? ⭐ 5.0 / 5.0 “Nuzran was efficient and extremely professional. I would hire him again without hesitation.” ⭐ 4.6 / 5.0 “Excellent work and very easy to collaborate with. I even sent a bonus.” ⭐ 5.0 / 5.0 “Highly recommended. Would definitely hire again.” ⭐ 5.0 / 5.0 “Great designer for cosmetic product work and very easy to communicate with.” What I Do as a Product Designer? - Product concept development and refinement. - Prototype development using 3D printing techniques. - High accuracy 3D product modeling using SolidWorks. - Detailed engineering drawings with dimensions and tolerances. - Mechanical design for plastic, sheet metal, and machined parts. - Assembly design with correct fits, motion, and part interaction. - Design optimization for CNC machining, laser cutting, injection molding, and 3D printing. What makes my product design approach different: - Mechanical engineering background. - Strong focus on manufacturability and functionality of the design. - Clean, structured, and well documented deliverables. - Clear communication and reliable timelines. Product Design Experience Includes - 3D Printing. - Consumer product development. - Mechanical components and assemblies. - Custom tools, adapters, and fixtures. - Prototypes. Regardless of complexity, I deliver consistent, engineering grade product design quality. What You Can Expect When Working With Me? - Clear, client focused communication. - On-time delivery. - Practical, real world product designs. - Minimal revisions due to careful planning. - Long-term product design support if required. If you’re looking for a reliable 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐬𝐢𝐠𝐧𝐞𝐫 𝐟𝐨𝐫 𝟑𝐃 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐦𝐨𝐝𝐞𝐥𝐢𝐧𝐠, 𝐦𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐚𝐥 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐨𝐫 𝐒𝐨𝐥𝐢𝐝𝐖𝐨𝐫𝐤𝐬 𝐛𝐚𝐬𝐞𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, send me your idea, sketches, or reference files. I'll help you Build Your Product !!! 𝐓𝐡𝐚𝐧𝐤𝐬 𝐟𝐨𝐫 𝐭𝐚𝐤𝐢𝐧𝐠 𝐭𝐡𝐞 𝐭𝐢𝐦𝐞 𝐭𝐨 𝐫𝐞𝐚𝐝 𝐭𝐡𝐢𝐬. 𝐎𝐧𝐞 𝐥𝐚𝐬𝐭 𝐭𝐡𝐢𝐧𝐠... 𝐭𝐡𝐞𝐫𝐞'𝐬 𝐚 𝐫𝐞𝐚𝐬𝐨𝐧 𝐈 𝐡𝐚𝐯𝐞 𝐚 𝟏𝟎𝟎% 𝐬𝐮𝐜𝐜𝐞𝐬𝐬 𝐬𝐜𝐨𝐫𝐞 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤. 𝐈𝐭'𝐬 𝐛𝐞𝐜𝐚𝐮𝐬𝐞 𝐈 𝐠𝐞𝐭 𝐢𝐭 𝐫𝐢𝐠𝐡𝐭 𝐭𝐡𝐞 𝐟𝐢𝐫𝐬𝐭 𝐭𝐢𝐦𝐞, 𝐨𝐫 𝐈'𝐥𝐥 𝐰𝐨𝐫𝐤 𝐟𝐨𝐫 𝐟𝐫𝐞𝐞 𝐮𝐧𝐭𝐢𝐥 𝐲𝐨𝐮'𝐫𝐞 𝐡𝐚𝐩𝐩𝐲. 𝐋𝐨𝐨𝐤𝐢𝐧𝐠 𝐟𝐨𝐫𝐰𝐚𝐫𝐝 𝐭𝐨 𝐜𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐲𝐨𝐮! CAD Designing | 3D design | Product Designing | Mechanical engineering | CAD CAM | CAD Modeling | 3D Modeling | 3D Drawing | 2D Drawing | Part Modeling | Part Assembly | Technical Drawings | Manufacturing | Product Modeling | 3D rendering | 3D printing | Motion Study | SolidWorks | AutoCAD | Blender | Realistic modelling | Product Designing | Manufacturing and Construction | 3D design | Autodesk | Architecture | Sheet metal

I’m Yashiru Gimhan, a qualified Draughtsperson from Sri Lanka, with 4 years of 2D drafting with AUTOCAD and 3D Architectural Visualization experience with BLENDER and a DIPLOMA IN ENGINEERING DARFTING. With my experience in 2D & 3D drafting and 3D Architectural Visualization, I help architects, engineers, business owners, and homeowners bring their concepts to life. My work spans residential floor plans, mechanical part designs, and structural layouts, always delivered with accuracy and efficiency. -Key skills: • AutoCAD 2D Drafting • 3D Architectural Visualization with Blender • House Floor Plans/Elevation/Section/Roof plan • AutoCAD 2D Isometric Drawings • 3D Isometric views and 3D Axonometric detailing • Interior and Exterior design presentations • Wall Design • Garden Designs • CNC/Mosaic CNC as DXF • DIY Designs • Realistic rendering with materials, lighting, and ambient effects • CAD drafting & redraws • Architectural Drawings • Design By RAYON • 3D Rendering • Mechanical and Structural drawings • Shopfitting & retail layouts • Racking & warehouse layouts • Site plans & space planning • Revisions & corrections • CAD file conversion and editing I believe every project deserves precision, neatness, creativity, and reliability. Whether you need a single drawing or a full set of technical documents, I’m here to make your vision a reality. Thank you! yashiruG.

Seeking an expert to transform your idea into a market-ready product? Clients hire me for turnkey hardware and firmware solutions. Beyond PCB design, I handle sourcing, PCBA, and rigorous testing. I don't just send files; I build, debug, and deliver high-quality proven prototypes. I help startups, entrepreneurs, and engineering teams take products from concept → prototype → production. I support the full process, including product research, circuit design, schematic capture, PCB design, firmware development, prototype manufacturing, assembly, testing, debugging, validation, and production handoff. ---- Why clients hire me ---- ✅ I turn complex ideas into working products I take rough concepts, difficult requirements, or incomplete designs and turn them into practical, tested hardware. ✅ I stay involved until the design works I do not stop at schematics or PCB layout. I support bring-up, debugging, rework, firmware, validation, and design improvements so clients are not left with non-working prototypes. ✅ I handle compact and difficult PCB designs I am often brought in for very compact PCBs, custom PCB shapes, high-density layouts, RF boards, high-speed boards, analog signal chains, and power electronics, where careful design choices are critical. ✅ I reduce the client’s workload My team and I can support PCB manufacturing, component sourcing, assembly, firmware, testing, and small-batch production, so clients do not need to coordinate multiple vendors. ✅ I work well with technical teams I can join ongoing projects quickly, support existing hardware and firmware teams, and help move development forward without slowing things down. ---- Services I offer ---- 🔹 Complete product development — idea to prototype to manufacturing 🔹 PCB design — professional, compact, production-ready layouts 🔹 PCB review and verification — schematic review, layout review, design improvements 🔹 Circuit design and simulation 🔹 Firmware development — microcontrollers, processors, and Linux-based systems 🔹 Hardware bring-up, debugging, testing, and validation 🔹 Fixing boards that do not work properly 🔹 Prototype assembly and small-batch manufacturing 🔹 3D CAD support / enclosure coordination ---- PCB design expertise ---- I design PCBs across a wide range of domains, including: ▪ High-speed PCB design ▪ High-density / compact PCB design ▪ RF PCB design ▪ Analog PCB design ▪ Power electronics PCB design ▪ IoT hardware design ▪ Custom-shape and space-constrained PCB layout ▪ Multi-board systems and interconnect design I focus on clean layout, manufacturability, reliability, and real-world performance. ---- Firmware and embedded systems ---- I provide professional firmware development as a standalone service or as part of a full product build. Platforms and families I work with include: ▪ STM32, ESP32 / ESP-IDF, Arduino ▪ TI C2000 / Code Composer Studio ▪ PIC / Atmel / SAMD ▪ FPGA / SoC systems ▪ Linux-based embedded systems ▪ Single-board computers, microprocessors, and controllers Languages: ▪ C / C++ ▪ MicroPython ▪ JavaScript / embedded scripting ▪ Assembly when needed ---- Tools and software ---- PCB Design: ▪ Altium Designer ▪ KiCad ▪ EasyEDA Embedded / Firmware: ▪ STM32CubeIDE ▪ ESP-IDF ▪ Arduino IDE ▪ Code Composer Studio Simulation / Engineering Tools: ▪ LTspice ▪ Proteus ▪ HFSS ▪ Multisim ▪ LabVIEW GUI / Display Frameworks: ▪ LVGL ▪ TouchGFX ---- Interfaces, protocols, and technologies ---- Interfaces: ▪ SPI ▪ I2C ▪ UART ▪ CAN ▪ I2S ▪ USB ▪ Ethernet ▪ MIPI-CSI / MIPI-DSI ▪ LVDS ▪ FMC ▪ Memory interfaces Wireless / Connectivity: ▪ WiFi ▪ BLE ▪ LoRa ▪ GPS / GNSS ▪ LTE / GSM ▪ NFC ▪ UWB Protocols: ▪ MQTT ▪ HTTP ▪ FTP ▪ TCP/IP ▪ UDP ▪ SSL/TLS Operating Systems: ▪ FreeRTOS ▪ TI-RTOS ▪ Embedded Linux ---- Specializations ---- 🔸 Power Electronics — DC-DC converters, MPPT, motor control, BMS, power supplies 🔸 RF Design — 2.4 GHz to 77 GHz, radar systems, filters, mixers, antennas 🔸 High-Speed Design — USB, LVDS, FMC, memory and fast digital interfaces 🔸 Analog Design — signal conditioning, ADC interfacing, filtering, measurement circuits 🔸 Embedded Product Development — concept to tested prototype to production 🔸 Testing and Debugging — hardware issues, prototype failures, bring-up and validation ---- Testing, validation, and manufacturing support ---- One of the biggest advantages I offer is hands-on validation. My team and I support: ▪ In-house bring-up and testing ▪ Prototype debugging and rework ▪ Small-batch PCB assembly ▪ Automatic pick-and-place assembly ▪ Reflow soldering ▪ Component sourcing and fabrication coordination Let’s talk If you need help with PCB design, embedded systems, firmware development, RF design, power electronics, debugging, prototype testing, or taking a product to production, I’d be glad to discuss your project.

Top-Rated, 15 years+ on Upwork. I help inventors, startups, and manufacturers turn ideas into manufacturable products using SolidWorks, with professional experience as a Senior Mechanical Design Engineer and Industrial Product Designer. I partner with international clients- from independent inventors to established manufacturing firms- to deliver precision engineering on time and within budget. My services include: ✔ Product & Industrial Design & Development ✔ Mechanical Design ✔ SolidWorks 3D CAD Modeling ✔ Sheet Metal Design ✔ Plastic Part Design ✔ Injection Molded Product Design ✔ Manufacturing Drawings ✔ 3D Printing Ready Models ✔ Reverse Engineering ✔ Design for Manufacturing (DFM) ✔ Assembly Design ✔ Mechanism Design Why clients work with me: • 100% Job Success Score • Top Rated Freelancer • 16,000+ Upwork Hours • 195+ Successfully Completed Projects • Strong Manufacturing Knowledge • Clear Communication and Reliable Delivery I am committed to delivering high-quality engineering solutions that are practical, manufacturable, and aligned with your project goals. Let's discuss your project and turn your idea into a successful product.

I have experience on Australian and USA projects. and I am open to work for any design codes as I have strong understanding of Engineering basics and Construction methodologies. I am open to work for long term basis for PE (USA) or Professional engineer in Australia. I am a highly skilled Structural Designer and Revit Drafter with a strong focus on accuracy and detail. I specialize in both structural engineering and drafting, handling everything from start to finish. My Expertise Residential Design: I carry out both the structural design and the drafting for residential projects. Commercial Projects: I am capable of designing and drafting for medium-scale commercial buildings. Technical Drafting: I take full responsibility for highly complex structural drawings, ensuring every detail is correct. Revit Specialist: I am an expert at using Revit to create precise models and professional drawing sets.