Hire the Best Circuit Designers
in the United Kingdom

Product Designer | Mold Expert | 3D Printing Specialist | Specialising in the Medical & Health Sector Hi, I am Ciaran from Ireland. I am a MEng Biomedical Engineer focusing on the design and development of products: ✅ 3D CAD & Prototyping ✅ 3D Modeling (SolidWorks, Fusion360, Blender, FreeCad, Creo) ✅ Rendering (Blender, Rhino, Keyshot) ✅ Silicone Mold Design ✅ STL, OBJ, STEP, F3M,DWG etc. ✅ Design For Manufacture

Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of electronic device designs, supporting clients from initial concept and schematic design to PCB layout, prototyping, assembly, and full system testing. I have strong expertise in high-speed PCB design, including PCIe and DDR4 routing, as well as precise impedance matching for reliable performance at high frequencies. I also specialize in RF and antenna design for modern IoT devices, ensuring optimal signal integrity and system efficiency. In addition, I have deep experience in ultra-low power design, achieving microamp and sub-microamp current consumption for battery-operated and wearable systems. I specialize in firmware development for LTE-GPS-LoRa-BLE-based embedded systems (nRF52 series), including low-power optimization and high-precision sensor acquisition. My focus is on delivering robust, production-ready solutions with high reliability and performance. 🔥 Main Skills 👉Embedded Systems 👉Schematic Circuit Design(Low Power consumption Design) 👉Firmware Development(All Microcontrollers-STM32, TMS320, ESP32, FPGA, nRF52, Raspberry PI) 👉PCB Design(High speed signal routing, PCIe, DDR4, 18 multi-Layers Design, RF antenna Design,) using Altium Designer, KiCad, EasyEDA, Fusion 360(No problem in DFM-JLCPCB) 👉IoT with nRF52(BLE), LoRa(for example, SX1262), LTE(SIM card interface), GPS and other variety of sensors 🛠️Tools & Technologies: 👉 nRF5 SDK / nRF Connect SDK 👉SEGGER Embedded Studio + J-Link debugging 👉 C/C++ (bare-metal & RTOS) 👉 BLE GATT, LTE AT commanders, custom wireless protocols 👉SPI / I2C / UART / ADC integration 👉Low-noise measurement systems (nA level) 👉STM32CubeIDE, Cube MX, Keil, CCS, Arduino, ... 👉MQTT, Free RTOS, Zephyr RTOS 🚀 I can support your project from concept to production.

I specialise in challenging go-to-market projects, designing and developing devices, circuits and software where the assumptions are yet to be tested and specifications are early phase. Over 20 years I have delivered deep tech programmes for the MOD, NHS and delivered into clients including Abbott, J&J, PALL, and Fujifilm. My training in sensors, electronic circuit design, biochemistry and embedded AI edge systems will guide rapid progress. My PhD focused on machine learning of receptor structures for biosensing applications, combining electronics design, computational modelling of biological systems, and sensor development. Clients often arrive with an early-phase concept, a market need, and a scope that is unclear. My first job is to identify which assumptions actually matter, design the experiments that test them, and produce a proof of concept with real evidence behind it. For teams past that point, I take that foundation through full hardware development to a compliant, market-ready device with all the certificates of conformity. I build first prototypes in-house using my own prototyping equipment, without the cost or lead times of an external build house. I design and review electronic circuits and schematics, lay out PCBs in Altium Designer and KiCad, develop embedded firmware in C and C++, design and prototype wearables from concept through to enclosure in SolidWorks, and prepare the regulatory evidence required for CE marking, UKCA, and EU MDR submissions.

A dedicated Electronics engineer and prototyping specialist, with over 7+ years of experience. I'm always at the forefront of trying new technologies and incorporating them into my designs. I'm an expert at taking design from concept to reality, and I have experience at doing this at both a small scale and large scale. I have worked on projects to help design and test Bluetooth chips that are now used worldwide for IOT applications, as well as working with some of the worlds tech giants such as Amazon and Google and Samsung on earbud applications - during my time at Qualcomm. I am also available to take a simple sketch or idea and provide you with a 3D printed part such as an enclosure, which will match your project requirements using the latest SLA/FDM printing technologies. How can I assist you? - Electronic engineering and schematic design - Electronics Prototyping and Rework - PCB Design - Project Cost optimisation - Optimisation for mass production Interfaces and PCB technologies - I2C, SPI, UART, SDIO, PWM, Analogue \Analog - USB, PCIE PCB and Design Software - Altium, Autodesk Eagle, Mentor, Kicad, Cadence - PTC CREO - MPLAB IDE

I'm a Mechatronics Engineer with expertise in product development, mechanical design, electronics, PCB design, and embedded systems. I help startups, businesses, and inventors transform ideas into functional, manufacturable products by combining mechanical engineering, electronics, and intelligent control systems. Whether you're developing a new product from scratch or improving an existing one, I can support every stage of the design process—from concept development and CAD modeling to circuit design, PCB layout, prototyping, and programming. My services include: 3D CAD Modeling & Mechanical Design Product Design & Development Mechanical Parts & Assemblies Engineering Drawings PCB Design & Layout Electronic Circuit Design Embedded Systems Development Arduino Programming Sensor & Actuator Integration Reverse Engineering Design Optimization Prototype Development Manufacturing-Ready Documentation Product Rendering & Visualization Software & Tools: Siemens NX Autodesk Inventor SolidWorks AutoCAD Fusion 360 Altium Designer / KiCad / EasyEDA Arduino IDE MATLAB/Simulink (where applicable) Proteus I enjoy solving multidisciplinary engineering challenges by integrating mechanical systems with electronics and embedded control. My goal is to deliver designs that are innovative, reliable, and ready for prototyping or production. I value clear communication, attention to detail, and meeting deadlines. Whether you need a mechanical component, a custom PCB, an Arduino-based prototype, or a complete mechatronic system, I'm committed to delivering high-quality engineering solutions tailored to your project. Let's build something great together.

From concept to tested prototype, I design high-performance PCBs and embedded systems for startups, engineers, and product teams who need results that work the first time. With 8 years of experience in embedded systems and hardware design, I specialize in creating production-ready electronics that are efficient, reliable, and built for scale. Whether you're developing a new product or improving an existing design, I bring the technical expertise and problem-solving mindset to get it done right the first time. 💡 What I Offer: 🔹 Embedded System Development: ARM Cortex, STM32, ESP32 🔹 Advanced PCB Design: From 2-layer to complex multilayer boards with BGA, RF, and high-speed signals 🔹 Cost-Effective Engineering: Focused on value without compromising quality 🔹 Rapid Prototyping: Helping you move from idea to working prototype quickly 🔧 Core Technical Skills: ✔️ Analog & Power Circuit Design: LED drivers, SMPS, sensor interfacing ✔️ Motor Control & Drive Systems ✔️ Signal Integrity & EMC/EMI-Conscious Design ✔️ Communication Protocols: RS232, RS485, I2C, SPI, UART, CAN ✔️ Firmware Development: Embedded C/C++ for real-time applications 🛠️ Tools & Platforms I Work With: 👉 Altium Designer – Industry-standard PCB design 👉 LTspice – Analog simulation & validation 👉 Proteus – Embedded system simulation 👉 Signal integrity tools and EMI/EMC testing preparation 🚀 Why Work With Me? ✨ Proven record of delivering on time and exceeding expectations ✨ Strong communicator who makes complex things simple ✨ Practical experience with certification-ready hardware ✨ Affordable, efficient, and results-oriented 🎯 Let’s Build Something That Works Whether you're launching a new product, troubleshooting a design, or scaling to production, I’m ready to help bring your vision to life with solid engineering and dependable execution. 👉 Check out my work: github.com/zainsiddiqui-zz 📩 Let’s connect and build your next success.