Hire the Best Circuit Designers
in Sri Lanka

Electrical and Electronics Engineer with broad, in-depth expertise in embedded systems, robotics, and electronic hardware design. Possesses strong technical knowledge in microcontroller-based system development, embedded firmware engineering, and digital communication protocols. Experienced in sensor and actuator integration, control systems, and autonomous and intelligent electronic systems. Skilled in custom PCB schematic and layout design, power electronics and power management, and hardware prototyping and debugging. Demonstrates a solid understanding of system-level design, reliability, and real-world deployment constraints. Comfortable working across the full engineering stack — from low-level firmware and electronics to complete embedded and robotic systems — with a focus on building robust, efficient, and scalable solutions.

I'm Suresh, an Electronics Engineer in Sri Lanka. Specializing in PCB design, I offer expertise in single-layer, double-layer, and multi-layer boards. I'm here to bring your circuit design ideas to life with a focus on delivering the best and fastest solutions. My main goal is to give the best and fastest design to my clients.

I design high density, ultra compact, high-speed, RF and power PCBs in Altium or KiCad, then assemble and bring them, test up in my own lab — so you get a board that's already been powered, probed and proven, with no three-week wait on a contract assembler in between. 6+ years designing production hardware. 50+ PCB designs, 300+ boards shipped. ✅ DESIGN Multilayer layout upto 14 layers with controlled impedance and length matching. DDR3, USB 3.1, HDMI, PCIe. Power electronics to 50A with PDN and thermal analysis. RF and antenna integration for BLE, Wi-Fi, and LoRa. Precision analog and mixed-signal partitioning. Rigid-flex. Hierarchical, documented schematics your team can actually debug. ✅BUILD In-house SMT pick-and-place line for 1–100 unit runs. DFM audit against 100+ manufacturing rules before release. SMD Reworking and assembly facilities. BOM scrubbing for cost, lead time, and part lifecycle. ✅PROVE Bring-up and bench validation: every rail verified, critical signals probed, thermals mapped. 500 MHz 4-channel scope, 3.2 GHz spectrum analyzer, logic analyzer, thermal camera with a fully equipped lab. 🎯You receive source files, a full manufacturing pack, and a bring-up guide your firmware team can work from on day one. 🎯Also: EMI/EMC troubleshooting on boards that failed testing, and reverse engineering of obsolete designs onto current parts. 🔧Tools: Altium Designer (primary), KiCad, EasyEDA, LTspice, SolidWorks, Onshape. 🤝Good fit if you're a startup that needs working hardware rather than a folder of Gerbers, you have a high-complexity design that punishes sloppy layout, or you have a board failing EMC and need it diagnosed properly. I keep a daily overlap window for clients in the US, UK, and Australia — send feedback at end of day, wake up to progress. Tell me about your board.

Stop wasting time on boards that don't work. I design manufacturing ready, multi-layer PCBs that bring your electronic products to life. I am a professional Embedded Systems Engineer specializing in high quality schematic capture and PCB layout. Whether you need a simple 2-layer prototype or a complex multi-layer industrial board, I ensure your design is optimized for both performance and Design for Manufacturing (DFM) to keep production costs low. Core Expertise: ✅PCB Layout: High-speed digital, precision analog, and power electronics (Multi-layer). ✅Hardware Integration: Extensive experience with ESP32, STM32, Arduino, and LoRa. ✅Schematic Design: Component selection, circuit simulation, and custom library management. ✅Manufacturing Files: Full production packages (Gerber X2, BOM, Pick-and-Place, 3D STEP). ✅Industry Tools: Expert proficiency in KiCad, Altium Designer, and Autodesk Eagle. Why work with me? ✅ Manufacturing Ready: I don't just "draw" boards; I design them to be built according to IPC standards. ✅ Fast Turnaround: Clear communication and strict adherence to your project deadlines. ✅ Post-Delivery Support: I provide technical support until your board is successfully fabricated and assembled. Let’s discuss your project requirements. Send me a message or click "Invite to Job," and I’ll provide a quick initial review of your concept!

Need to turn your low-resolution logo or artwork into a clean, accurate vector? That’s exactly what I specialize in. I’m a Vector Graphics Specialist with 10+ years of experience in manual vector tracing, logo redraw, and image-to-vector conversion. I create precise, scalable, and fully editable artwork that is production-ready for professional printing, branding, apparel, signage, and other applications. 🚀 WHY WORK WITH ME? I spent 5 years working in the Gulf (Qatar & Kuwait) as a Lead Designer within advertising and production companies, handling A–Z design and production for projects involving international brands such as Nike, Dior, Adidas, Puma, and ASICS. This experience gave me a strong understanding of professional branding, large-format printing, color separation, and real-world production requirements. I don’t just recreate artwork — I build it with the final production in mind, ensuring every important shape, curve, detail, and proportion is clean, accurate, scalable, and ready for professional use. WHAT I OFFER: • 100% Manual Vector Tracing – Carefully recreated in Adobe Illustrator without relying on automatic tracing. • Logo Recreation & Redraw – Converting low-resolution, blurry, or existing artwork into clean, professional vectors. • Image-to-Vector Conversion – Accurate vector conversion while preserving the original appearance and details. • Professional Illustrator Artwork – Clean, precise, fully editable vector artwork. • Production-Ready Files – AI, EPS, SVG, PDF, and high-resolution PNG. • Print & Production Knowledge – Experience with CMYK, UV printing, offset printing, color separation, apparel, signage, and large-format production. WHY CLIENTS CHOOSE ME: • 100% Job Success Score on Upwork • Top Rated Freelancer • 10+ Years of Professional Design Experience • Detail-focused manual vectorization • Clean, scalable, fully editable artwork • Fast communication and reliable delivery Don’t rely on automatic tracing when accuracy matters. Send me your logo, artwork, or reference image, and I’ll recreate it as a clean, accurate, production-ready vector file.

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.