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Summary Seeking an Artisan Builder for an Experimental Sensor Project (Contract)** **Project:** Help Needed to Build a Sensitive Prototype **Location:** Your home lab/workshop in M25 Area or inner **Who I Am:** I'm an independent researcher and tinkerer working on a personal passion project. I've spent the better part of a year developing the theory and digital architecture for a highly sensitive, multi-channel signal acquisition unit. My expertise is in the system design and theory. Where I need help—and where I'm hoping to find a collaborator—is in turning these schematics and concepts into a physically robust, low-noise piece of hardware. **The Challenge & What I Need Help With:** This is where your expertise comes in. I need a skilled, hands-on builder to help me construct three alpha prototypes. This isn't about mass production; it's about crafting three, high-quality instruments. The work would involve: * **Careful Circuit Assembly:** You'll be bringing the analog front-end to life. This means expert soldering of fine-pitch surface-mount components (instrumentation amps, etc.) and through-hole parts. We can use a custom PCB I have designed, or if you believe a different method (like a well-executed perfboard or "dead bug" build) would yield lower noise, I am completely open to your expert opinion. * **Winding Custom Coils:** This is one of the most critical parts. The design calls for a tightly-coupled transducer array, which requires the precise manual winding of several coils, including a dipole pair using Litz wire. This is a task for a patient artisan. * **Building a 'Quiet' Device:** You'll need to implement the RF shielding as specified in the plans. We both know that minimizing noise is a black art, and I'm looking for someone who treats stray capacitance and ground loops as personal enemies to be vanquished. * **Final Assembly:** Putting it all together. This could involve modifying a standard project box or fabricating a simple housing. The goal is a sturdy, reliable instrument that can be taken out for testing, not something that has to live on a bench. **Who I'm Looking For:** This is a project for a specific kind of person. You're the right fit if: * You genuinely find joy in the craft of building electronics. * You have a portfolio or can show me examples of clean, impressive work you've done before. * You know that a schematic is just the beginning, and that layout, component choice, and build quality are what separate a working circuit from a *high-performance* one. * You're more of a "workshop wizard" or "garage scientist" than a corporate engineer. * You're excited by a unique technical puzzle and aren't afraid to experiment to get the best result. You dont have a problem with me coming around when your free to see progress you being a an expert ;) i enjoy talking tech... **The Arrangement (The "Deal"):** Let's be completely upfront: this is a self-funded research project, and my budget is modest. I can't offer corporate consulting rates. What I **can** offer is a fair, negotiated project fee for your time, skill, and expertise. We can structure as a fixed price for the completed, tested prototypes. More importantly, I can offer a fascinating challenge that will test your skills, and further projects without a doubt if we get along If this project is successful and moves to the next phase, there is a very real possibility of more paid work to build future revisions. **Interested?** If this sounds like your kind of challenge, I'd love to hear from you. Please send me an email with: 1. A little bit about yourself and your experience. 2. Links to or photos of some projects you're proud of. I'm especially interested in any analog, RF, or sensor projects. Let's Discover Creation As a team
Project ID: 39747757
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32 freelancers are bidding on average £2,457 GBP for this job

As an electrical engineer with a specialty in embedded systems and PCB design, I believe I am an ideal fit for your custom RF device project. My extensive experience with antenna and circuit design, along with my deep understanding of signal processing, perfectly aligns with the needs of your project. Moreover, my proficiency in microcontrollers like Raspberry Pi, Arduino, and STM32, along with my knowledge of FPGAs using Verilog/VHDL positions me to execute both the precise analog front-end soldering you seek, as well as implementing any needed RF shielding. Creating a "quiet" device that minimizes noise is in fact my forte - something I don't take lightly but instead approach as a personal battle to achieve that high-performance device. In addition to my skillset, what sets me apart is my sheer passion for building electronics. I revel in the craftsmanship of bringing concepts to life and I firmly believe that robust design and high-performance come from not just tactical circuit assembly but also thoughtful component choice and layout. The joy and gratification that comes from this 'garage scientist' work is the very bedrock of our chances of establishing a fruitful rapport. Lastly, I must mention my flexible communication style: Which means that updates will always be availed according to your convenience
£3,000 GBP in 30 days
8.0
8.0

Hello, As an electrical engineer and skilled artisan with extensive experience in antenna design, circuit design, and PCB layout, I believe I am the ideal fit for your custom RF device project. My expertise encompasses a broad range of skills directly applicable to your needs - proficient in analog front-end implementation, such as soldering of fine-pitch surface-mount components and through-hole parts. Additionally, I have excellent manual dexterity, which is critical for winding custom coils with precise specifications. Over the years, my attention to detail has become synonymous with clean and noteworthy work that separates a functional circuit from a high-performance one - aligning precisely with your requirements for sturdy, reliable instruments. Moreover, my love for the craft paired with a pragmatic approach to problem-solving assures you that I'm more of a "garage scientist" than a generic corporate engineer. Furthermore, partnering on this project will include regular consultation on progress if required. Sharing the same passion for technology and relishing unique technical puzzles, I can ensure your prototypes are not only built meticulously but also catered uniquely to your research objectives. With all of these factors in mind, I wholeheartedly believe we'll make an efficient team and am excited about the possibility of further collaboration should this project progress. Join me at Live Experts®, where we turn ideas in Thanks!
£3,000 GBP in 2 days
7.2
7.2

As an electronic hardware and firmware engineer who is deeply passionate about realizing unique, technical challenges into tangible products, I believe I am the perfect fit for your custom RF device development project. My expertise in PCB design and development encompasses precisely what you require - creating highly reliable, high-performance PCBs such as the one you've designed or ones we'll custom-make to yield lower noise. My experience in developing and tailoring RF filters, splitters, transceivers and power amplifiers to specific application needs could prove invaluable in your endeavor to minimize noise and build a 'quiet' device. Not only does my extensive portfolio evidence clean and impeccable workmanship which you desired, but it also showcases my knack for crafting powerful systems from scratch while strictly adhering to budgets without compromising quality or deadlines. Let's join forces on this project. With your in-depth knowledge of system design and theory coupled with my hand-on building skills; we can transform your thoughtful schematics into an exceptionally distinctive, low-noise piece of hardware. Furthermore, the fact that you are open to experimentation aligns perfectly with my approach to problem-solving. And hey! I enjoy talking tech too! So let's make this process an exciting companionship where stereotypes of clients not being present during creation truly fall away. Let's turn your vision into reality as a team
£2,250 GBP in 7 days
6.3
6.3

Since 2003 I am working in Digital Electronic. So more than 18 years of experience in Electronics. Arduino NANO/UNO/MEGA, ESP32 and Raspberry PI to build a digital device to read sensor data and send it to the web server, motor control, control relay switches and LEDs. More than 5(five) years of experience in Arduino design and build. If you want an excellent and error-free project delivery, then send a message to me, please. Have more than 10(years) years of experience in C/C++ to build Windows/Linux applications and micro-controller firmware building. If you want a good job delivery, then send a message to me, please. Since 1995 I have been working on Analog and Digital Electronics to build any kind of device. I have build lots of devices. So more than 20 years of experience on Electronics. Including power supply design. Any kinds of schematic and PCB design. Expert PCB design in EasyEDA Pro IDE.
£3,000 GBP in 30 days
5.6
5.6

Hi, how are you doing? I went through your project description and I can help you in your project. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LABView/ Multisim/PSPICE/VLSI Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements. We can deliver your project efficiently within timeline. If you choose me, I think you won't regret. Best Regards.
£2,250 GBP in 7 days
6.1
6.1

Dear Client, I have carefully reviewed your project requirements for the development of a custom RF device in the UK M25 area. As a company with over a decade of experience in the electronics industry, we are confident in our ability to deliver a high-quality solution that meets your specifications. We understand the unique challenges and technical intricacies involved in this project and are excited about the opportunity to collaborate with you. We believe that our expertise and attention to detail make us well-suited to bring your vision to life. If you are interested in discussing the project further and exploring how we can work together to achieve your goals, please feel free to start a chat with us. We are eager to learn more about your project and how we can contribute to its success. Looking forward to the possibility of working together. Best regards.
£3,000 GBP in 7 days
5.3
5.3

Hi DiscoverCreation, I recently completed a similar project. Message me so I can show you that sample. - Question: What are the target input specs (per‑channel bandwidth, source impedance, expected signal level, dynamic range), input‑referred noise density and 1/f corner, required CMRR, and coil parameters (geometry, Litz strand count/gauge, Q and SRF targets, coupling coefficient and tolerance)? Also, is synchronous detection in scope? - Suggestion: Build hybrid: coils on low‑loss formers, vacuum‑impregnated to suppress microphonics; preamp dead‑bug on copper‑clad islands inside a copper can, with mu‑metal outer shield; triax connectors with driven‑guard input, feedthrough caps at the bulkhead, and single‑point star chassis bond; battery supply, isolated DC‑DC followed by ultra‑low‑noise LDOs; differential chopper IA with synchronous demod; characterize coils via 4‑wire LCR (Q/SRF) and tune matching; validate noise with PSD + Allan variance to separate 1/f, thermal, and environmental contributions. Kindly send me a message, lets discuss in detail and my portfolio is uploaded here and on my website. Best Regards, Sid CTO and Co-Founder of Ekarthaan
£3,000 GBP in 11 days
5.4
5.4

Having mastered the craft of building electronics over the course of six years, I offer a unique blend of technical expertise and an unwavering passion for this fine art. As a hands-on electrical engineer, I've built a portfolio that reflects my meticulous approach to circuit design, layout and a knack for problem-solving that your project demands. My proficiency in soldering fine-pitch surface-mount components and implementing RF shielding is attested by projects I've handled successfully in the past. What sets me apart from other candidates is that I'm not just an engineer; I'm also a keen tinkerer and researcher. Just like you, I relish the challenge of unique technical puzzles, which translates to an unyielding commitment to experiment until the best result is achieved. If selected, our collaboration will involve intensive development work where we convert your schematics into efficient circuits using your custom PCB or employing alternative methods for minimized noise, if required. Lastly, let's address the budget. While my rates may be higher than some
£2,250 GBP in 7 days
5.2
5.2

Hello, I have extensive experience with precision PCB assembly, low-noise analog front-ends, and custom coil winding for RF/sensor applications. I can help you build your three alpha prototypes with careful attention to shielding, noise reduction, and robust assembly. Could you clarify whether you prefer I work strictly from your existing PCB design, or would you like me to suggest layout/modifications for noise performance, and what level of documentation/progress updates you’d like during the build? Best regards, Vlad.
£1,500 GBP in 7 days
4.6
4.6

With a deep-seated passion for crafting electronics and over a decade in the field, I believe I am the right person for your project. My experience in electrical engineering coupled with my specialist skills in PCB design and embedded systems have already seen successful completion of projects similar to yours. Previous work with RF applications and custom devices means I am adept at mitigating stray capacitance and grounding issues which will be crucial for your sensitive prototype. One other ability that sets me apart from other freelancers is my patience and attention to detail - critical traits needed for tasks such as precise manual winding of coils. Your project hinges on building not just a working circuit, but a high-performing one, and from the way you describe it, this is exactly where my strengths lie. Being located within the M25 area, I am readily available for meetings, updates or consultations as per your convenience. Let me bring your creative RF device to life while adhering closely to your budgetary requirements. Choosing me guarantees not just quality work but a partnership with a strong possibility of future collaborations. The ball's in your court: let's create!
£2,250 GBP in 7 days
4.5
4.5

Hello there! I'm ready to take on your Custom RF Device Development project in the UK M25 area. As an expert in Altium Designer, PCB Layout, and Electronics, I can help bring your sensitive prototype to life. I specialize in careful circuit assembly, winding custom coils like the dipole pair using Litz wire, implementing RF shielding, and final assembly for a 'quiet' device. My dedication to craftsmanship and expertise in signal processing make me the ideal collaborator for this unique technical puzzle. Let's discuss how we can turn your theory into a high-performance reality. Cheers, RedBrick American Engineering
£1,500 GBP in 2 days
3.8
3.8

Hello, I am a Talented Electrical / Electronics and AI / Software Engineer with over 7 years of experience. I can work on your time zone and start working on your project immediately if you hire me. My solution involves constructing carefully assembled prototypes that align with your signal acquisition unit's specifications. I have successfully completed similar projects that required precise component assembly and RF shielding. To ensure successful collaboration, I would need your detailed schematics and any design preferences you have in mind. I would appreciate the chance to discuss the project in more detail. Best regards. ----Shohei----
£2,500 GBP in 10 days
3.6
3.6

Hello I am an electronics designer and hands-on builder with a strong background in analog front-ends, sensor systems, and precision circuit assembly. My passion lies in turning theoretical designs into working, low-noise instruments, which makes your project a very exciting fit. My relevant skills include: Fine-pitch SMD and through-hole soldering – experience with instrumentation amplifiers, RF components, and low-noise analog boards. Custom coil winding – I have worked with Litz wire and hand-wound coils for inductive sensors and RF prototypes, paying attention to symmetry, coupling, and consistency. Noise reduction techniques – shielding, careful grounding, star-point layouts, and physical build practices to minimize parasitics and stray capacitance. Prototype craftsmanship – from perfboard/dead-bug high-frequency builds to polished assemblies in project enclosures, depending on what best serves performance. I’m very much a “workshop builder” who enjoys the craft of electronics—both the technical puzzle and the hands-on precision work. I understand that for sensitive analog systems, layout and build quality matter just as much as the schematic. I’d be happy to collaborate on building your three alpha prototypes, and I am open to you visiting my workspace to see progress and exchange ideas. Looking forward to discussing how we can bring your experimental sensor project to life.
£2,486 GBP in 6 days
2.9
2.9

Hello, Drawing from my broad range of engineering skills, I am confident I can contribute significantly to your experiment sensor project. As an electrical engineer with proficiency in Antenna Design, Circuit Design, and Signal Processing, I have a solid understanding of the intricate nature of your project. Over the years, I've had the privilege of working on several cutting-edge projects that involved building high-performance circuit designs and implementing RF shielding that minimize noise. Moreover, I pride myself on producing clean builds that combine exceptional craftsmanship with top-notch performance. I pay great attention to detail which is evident in my skillful soldering to realize fine-pitch surface-mount components including the use of Litz wire for dipole pair coils as you require. Similarly, my experience in PCB layout further guarantees efficient performance for your prototypes. Your search for a workshop wizard or garage scientist ends with me. Since the beginning of my career as an electrical engineer, mastering complex technical puzzles has always been my forté. Furthermore, In addition to enjoying communication and collaborating through various progression stages in developing a piece or researching data; this perhaps is one skill you relaxedly have over me; it would be amazing delight to see you around anytime when free to discuss progress. This project isn't just another gig for me; it's an opportunity to wor Thanks!
£3,000 GBP in 1 day
2.3
2.3

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. l believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.
£1,500 GBP in 7 days
1.4
1.4

Hello, As an experienced builder and physicist, I have spent years honing my craft in experimental device development, working on projects that align closely with your own. With a passion for tacking technical challenges, creative problem-solving is at the heart of what I do and this innovative prototype project excites me. My expertise in prototyping is invaluable when it comes to building your alpha prototypes. Notably, I am comfortable and capable with carefully assembling circuits, from delicate surface-mount components to intricate winding of custom coils, using Litz wire just like your project requires. When it specifically comes to minimizing noise on devices, not only will I implement the necessary RF shielding as specified but also constantly employ my knowledge of dealing effectively with stray capacitance and ground loops to ensure that you achieve the lowest noise levels possible. The final assembly step would be executed with all the finesse needed to create a sturdy and reliable instrument capable of real-world testing. Having you involved in the process is not just welcome but desirable as this project requires regular communication as we move forward together. Ultimately, my motivation lies in delivering work that surpasses your expectations while staying within our budgetary confines. This self-funded research project may be modestly greenlighted but my dedication to producing a top-tier output remains uncompromi Thanks!
£3,000 GBP in 1 day
0.0
0.0

Hello, I’m excited about your experimental sensor project and believe I can bring the expertise you’re seeking. You’re looking for a skilled artisan builder to create high-quality prototypes, and I have a strong background in electronics and prototyping, having crafted several sensitive devices in the past. As an experienced electronic engineer, I’ve spent years honing my skills in circuit assembly, RF shielding, and custom coil winding. I understand the intricacies involved in bringing your design to life, focusing on minimizing noise and ensuring top-tier performance. To get started, I’d like to clarify a few details: 1. What are the specific schematics and designs you’ve developed so far? 2. Do you have preferred materials or components for the prototypes? 3. Are there specific testing criteria or performance metrics you want the prototypes to meet? 4. How often do you envision us collaborating in your workshop for progress assessment? By answering these questions, we can hit the ground running and create the optimally functioning prototypes you envision. Let’s collaborate to make this project a reality! What kind of timeline do you envision for the completion of the three alpha prototypes? Thanks, John
£1,500 GBP in 4 days
0.0
0.0

Hello, I'm excited about your Custom RF Device Development project! Building sensitive, multi-channel signal acquisition units sounds like a fascinating challenge, and I’m ready to help you craft those robust prototypes. With hands-on experience in circuit assembly and RF shielding, I excel at creating high-performance electronic devices. My attention to detail ensures minimal noise and superior build quality, essential for your experimental sensor project. Let’s combine our expertise and bring your vision to life! What specific timeline do you have in mind for the completion of the prototypes? Thank You, THE CALIFORNIA STUDIO
£1,500 GBP in 3 days
0.0
0.0

Hello , I have carefully reviewed your post and understand your requirements. You are seeking a developer with strong expertise in the skills relevant to this project. With over 10 years of experience in Signal Processing, Embedded Systems, Electrical Engineering, Antenna Design, Electronics, Prototyping, Altium Designer, Circuit Design, PCB Layout and Power Amplifier RF, I am confident that I possess the knowledge and abilities to contribute effectively. I am highly adaptable, a strong team player, and committed to delivering successful outcomes for your project. I am available to start immediately and can dedicate myself full-time to this role. I look forward to the opportunity to collaborate with you. Thank you for your time and consideration. Best regards, Rudolf
£2,500 GBP in 6 days
0.0
0.0

Hi, I am a full-stack developer with 10 years of experience. I have acted as software architect and technical lead on a number of projects. I have worked with unit testing tools such as Jest, Mocha, Enzyme, Jasmine. Here are some examples of my past projects: - A German Tinder-like dating app called Jamble - Tour, hotel, and airline tickets booking aggregator with a complex blog system - Tagfly, you can find it in my Upwork portfolio - A simple and functional constructor for creating landing pages I have a pretty decent amount of projects in my portfolio. I am happy to tell more during a video call.
£3,000 GBP in 7 days
0.0
0.0

Lambeth, United Kingdom
Member since Aug 30, 2025
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