Electronics Design Engineer for Medical Neurostimulation Device -- 2

@Mahihassi

With my diverse skill set and extensive background in electrical engineering, I am the ideal candidate for your project. Notably, my expertise in analog and mixed-signal electronics, power electronics, and embedded firmware development perfectly align with your needs. My Master's in Embedded Systems has equipped me with a deep understanding of firmware development that can translate into building robust systems like the one you require for therapeutic applications - tinnitus treatment to be specific. My broad experience in hardware development, from circuit design to PCB layout using tools such as Altium Designer, KiCad, Eagle, EasyEDA and Target is well-complemented by my capability in designing resonant circuits and RF hardware. Furthermore, having worked on numerous medical devices, I understand the delicate nature and stringent regulatory requirements associated with such projects. I have successfully delivered IoT products within time constraints similar to what you expect. Being an individual freelancer gives me the flexibility and complete control over the project's timeline which matches your targeted schedule. Best, sardar (ceo MHTechFusion)

@MuhammadUzair16

Hi I am an embedded systems engineer with over 16 years of experience in mixed-signal, power and RF/resonant hardware, including embedded firmware and bring-up for products that have to be reliable in real use. This project is very close to work I have done around controlled sinusoidal drive stages, current/real-power sensing, resonance tracking, isolated/safe power control, multi-channel analog front ends and Linux/SOM interfacing. For your neurostimulation controller I can take the existing Toradex platform, emitter prototypes, LTspice models and measurements and turn them into a manufacturable board: architecture review, schematics, PCB layout, BOM, firmware for control/monitoring, prototype bring-up and validation. I would pay particular attention to patient-coupled load variation, thermal/safety limits, EMC-aware layout, test points and a bring-up plan so the first batch is practical to debug. Examples of similar analog, RF/resonant, power electronics and medical/regulated projects cannot be shared publicly, but I can discuss relevant work privately during the technical call. I am an individual freelancer and can allocate steady availability over the next 2-3 months, including periodic design reviews with your electronics team. A few items I would like to confirm are the target stimulation voltage/current limits, isolation and leakage-current requirements, preferred PCB size/connectors, and whether firmware must integrate with an existing Toradex application stack. Please contact me to discuss details.

@iamhamzazaki

Having experienced a wide range of electronic engineering projects over the years, I'm particularly excited about your neurostimulation device, and its potential impact on therapeutic applications. My expertise in circuit, electrical and embedded system designs, aligns perfectly with your project's needs. Additionally, my vast knowledge of mixed-signal electronics and power electronics make me suitable to handle the complexities involved in managing multiple emitters simultaneously. Moreover, the Toradex platform based central unit you've chosen for this project is something I am entirely familiar with. This will enable faster design iterations, thus saving time during development. Let's not forget that I have real-world experience developing PCB layouts in under a month, which will help meet your schedule expectations. Finally, I understand the importance of communication, safety monitoring and power management in medical devices. Thus, my ability to perform embedded firmware development with a focus on system integrity and patient safety is an added advantage. As a freelancer, I can assure you full dedication and availability over the next 2-3 months for complete project execution. Your satisfaction is my utmost priority and I look forward to discussing further how my skillset and expertise can best contribute to your project's success.

@majeed219

With 5+ years of experience as an Embedded Systems Engineer and Professional PCB Designer, I am adept at tackling intricate projects involving systems with various functionalities like the one at hand. My competency extends from microcontroller programming to using electronic development boards and single-board computers, and I have successfully used several popular microcontrollers for different applications. Specifically in PCB designing, I can skillfully handle complex PCB layouts which will be crucial in designing the custom electronics board you need for this project. Together with my comprehensive skills and commitment to delivering accurate work within stipulated timeframes, I am confident that my contribution to your project will go above and beyond your expectations. Choose me – let’s shape meaningful therapeutic solutions together!

@engrusmanfaiz

Your project requires precise mixed-signal, RF, and power electronics where signal integrity, resonant circuit stability, safety monitoring, and reliable firmware integration are critical for a medical-grade prototype. With 12+ years of experience in embedded hardware and PCB development, I can confidently design the complete architecture, schematics, multilayer PCB, firmware, and support prototype validation while collaborating closely with your engineering team. My background includes analog and mixed-signal electronics, STM32/ESP32 embedded systems, RF and resonant circuit design, power management, high-speed PCB layout, and manufacturing support for industrial and IoT products. I am available throughout the next 2–3 months, can meet your proposed development schedule, and will deliver a production-ready, DFM-compliant design with complete documentation, BOM, and bring-up support. Regards, Engineer Muhammad Usman PCB Pro Expert

@tshibsamuel477

Hi there, I read your offer carefully and understand you need a custom electronics board for controlling up to five neurostimulation emitters, including inductive, capacitive, power-control, safety-monitoring, communication, and firmware functions. I can support the system architecture, schematic design, PCB layout, BOM, embedded firmware, prototype bring-up, and manufacturing support. My experience in mechatronics, mixed-signal electronics, power electronics, embedded systems, resonant circuits, PCB design, and prototype validation fits this project well. I can work from your existing simulations, emitter prototypes, measurements, and system architecture to move quickly toward a tested prototype. Just send me a message and we can discuss the technical specification. Best regards, Samuel Tshibangu

@ahsanfreelancer7

Hi, Hope you are well. It sounds like a great job and aligns with where I'd like to take my career. I'm eager to learn more. I have experience over the past fifteen years as a PCB Design Engineer at Global Engineering services and RWR Private Ltd. You can visit my freelancer profile page; https://www.freelancer.com/u/ahsanfreelancer7 I’ve been consistently committed to Specific goals, skills or traits the new job entails. Could we schedule some time to discuss about opportunity in more detail? I’d welcome the opportunity to learn more about the role and share how my skills and experiences would benefit you. I’m available to talk at any time. I look forward to speaking with you. Best, AHSAN ULLAH

@cesur135

As an experienced industrial and process automation engineer, I have a deep understanding of electrical and electronic systems design. My proficiency extends to software development, including embedded firmware, which is crucial for your custom electronics board. In particular, my extensive knowledge of resonant circuits, power control, and analog electronics will prove invaluable for your project's inductive and capacitive channels. With the availability of LTspice simulations and preliminary coil measurements from your existing assets, I can hit the ground running on the challenging task of automatic resonance tuning plus audio modulation. Regarding your schedule expectations, I am confident in delivering on time without compromising quality; something I've proven time and again in my projects involving Siemens PLCs parallel to electrical circuits design using E plan P8 V2.6. Your timetable of approximately 1-2 months for PCB layout stands perfectly with what I'm equipped to do. Additionally, my proven ability to quickly adapt and learn new technologies enhances my capacity to meet the alternative schedules you might propose. Finally, it would be remiss not to mention my familiarity with medical devices in designing control systems for Wastewater Treatment Plants which has similarities with the tinnitus treatment project your firm is undertaking. As an individual freelancer deeply experienced in automation design for various sectors

@Specgi

Dear Client, I am excited to apply for your Electronics Design Engineer project focused on a medical neurostimulation device. With experience in analog and digital circuit design, PCB development, embedded electronics, and medical device prototyping, I can contribute to the development of a reliable and high-performance electronic system. I understand the importance of precision, safety, and regulatory considerations when designing electronics for medical applications, and I am committed to delivering robust and well-documented solutions. For this project, I can assist with circuit design, component selection, schematic capture, PCB layout, signal conditioning, power management, microcontroller integration, and prototype validation. I will focus on achieving stable stimulation output, low-noise performance, efficient power consumption, and a manufacturable design while maintaining clear documentation and collaborating closely with your team throughout the development process. I am committed to delivering high-quality engineering work within the agreed timeline while maintaining open communication and attention to detail. I look forward to discussing your technical requirements, understanding your development objectives, and contributing to the successful design and validation of your medical neurostimulation device.

@ahmaddar2970

This project aligns with my expertise in electronics and firmware development, including PCB layout, resonant circuits, and embedded firmware, crucial for the development of your neurostimulation device. Leveraging my experience with analog and power electronics, I will ensure precise control and safety of the system, aligning with medical device standards. I am proficient in designing complex PCB layouts and implementing firmware that guarantees reliable communication and signal processing. My past work on RF and resonant circuit projects provides me with a solid foundation to manage the intricacies of your project. I am committed to delivering a high-quality prototype within your timeframe and am adaptable to the project’s schedule needs. I look forward to contributing to your innovative medical device.

@ElectronicsMust

Best Medical Electronics Design Expert! ⭐⭐⭐⭐⭐ Hi, When I saw your neurostimulation device project, it reminded me of several advanced embedded hardware and mixed-signal systems I've developed involving resonant circuits, power electronics, and custom multi-layer PCBs. These projects focused on reliable signal generation, efficient power control, low-noise layouts, EMI optimization, and long-term operational stability. ✅ I have 11 years of experience in embedded hardware and analog electronics, including resonant circuits, RF design, power electronics, STM32/ESP32, mixed-signal PCB layouts, signal conditioning, and high-reliability system design. ✅ I'm skilled in delivering complete, manufacturable hardware solutions, including system architecture, schematic design, PCB layout, BOM preparation, prototype validation, testing, and production-ready documentation. ✅ Before I begin, may I ask: 1. Is the resonant driver architecture already finalized? 2. you have any PCB size or stack-up constraints? Two suggestions: ✅ Use automatic resonance tracking with current feedback for consistent performance across varying loads. ✅ Separate analog, RF, and power sections with proper grounding to achieve >94% power efficiency, low EMI, and improved signal integrity. Freelancer doesn't allow me to message first, so feel free to reach out. I'd be happy to help develop a reliable, production-ready neurostimulation system. Kind regards, Avi Gupta Quality is never an accident.

@revival786

Greetings! I will design the custom electronics board for your neurostimulation device with inductive and capacitive channels, safety monitoring, power management, and embedded firmware. I have analog, RF, and medical device experience. I will deliver schematics, PCB, BOM, firmware, and prototype support. I am available for the 2 to 3 month timeline. I am an individual freelancer. Send your technical specification and existing assets. Thanks, Revival

@SidUSA

Hi, We are available to take this on and get your neurostimulation device electronics working perfectly. The main issue with complex mixed-signal systems like this is often ensuring stability in the resonant tuning and precise power control across multiple channels. Are you planning to utilize a specific communication protocol for the Toradex SOM interface, such as SPI or I2C, and do you have a preferred IDE or RTOS for the embedded firmware development? We recently worked on a high-precision medical device project that required custom electronics for signal generation and rigorous safety monitoring. We designed a multi-channel board capable of simultaneous output control, implemented automated resonance tuning, and handled the complex power management requirements. We also developed the embedded firmware to interface seamlessly with the system controller, ensuring reliable data throughput and real-time safety validation. Our work streamlined the prototype bring-up process and ensured full compliance with the initial system architecture. We are eager to discuss the project further. Reach out to initiate a conversation! Best regards, Quantum Code Solutions

@trm66614

I am excited about the opportunity to contribute to the development of your medical neurostimulation device. With my background in analog and mixed-signal electronics, I am confident in my ability to design a robust custom electronics board for your project. My previous experience includes developing systems involving resonant circuits and implementing embedded firmware, which aligns perfectly with your requirements. I understand the importance of precise signal generation and power control for optimal performance in therapeutic applications like tinnitus treatment. Given that you already have valuable resources such as initial emitter prototypes and system architecture definitions, I believe we can accelerate the hardware development. Moreover, I am committed to supporting the manufacturing of the first prototype batch to ensure smooth progression. I look forward to discussing how we can work together to achieve the project goals. What specific features or functionalities would you prioritize in the embedded firmware development? Best regards, Talha

@sekai1116

As an accomplished Electronics & Embedded Systems Engineer, I'm excited about the opportunity to contribute to your neurostimulation device project. My expertise in embedded firmware, hardware design and RF electronics aligns perfectly with the scope of your project. Not only am I adept in designing high-current power circuits as required for your project, but I also possess hands-on experience with resonant circuits similar to the 35 kHz sinusoidal carrier for the inductive channel. My exposure to these domains will help streamline the development process. Another skill that sets me apart is my proficiency in Altium Designer, KiCAD, OrCAD among others. This knowledge will allow me to transition seamlessly into your work environment as you've indicated working with LTspice simulations. Moreover, my problem-solving approach and skill in optimizing designs can significantly enhance elements like power management and communication with Toradex SOM in your system. Lastly, my ability to deliver manufacturing-ready solutions makes me an asset for this project. I understand not only the need for prototypes but also efficient mass manufacturing. I offer more than just job completion - you'll benefit from my commitment to generating robust designs that are thermally reliable and manufacturable, ensuring long term reliability for medical devices such as yours. Let's discuss further, so I can evaluate and jumpstart this project swiftly within the targeted schedule.