Prototipado Jobs

Estoy desarrollando un prototipo IoT de bajo consumo para un vertedor inteligente de bebidas y busco un ingeniero embedded/freelance con experiencia práctica en Nordic Semiconductor nRF52 y Bluetooth Low Energy. El objetivo del prototipo es detectar cada servido de una botella mediante un reed switch activado por un imán colocado en la tapita abatible del vertedor. Cada vez que el reed switch se active, el microcontrolador debe enviar automáticamente un evento BLE con un ID único del vertedor hacia un dongle nRF52840 PCA10059 conectado a una computadora, que funcionará como hub/receptor. No busco una empresa grande ni una solución sobredimensionada. Busco un especialista técnico que pueda llevar el prototipo a una prueba funcional, documen...

I need a mechanical engineer to design a pressurized can/bottle delivering device specifically for dispensing breathable air. Key requirements: - The device is intended to dispense gases, mainly air. - The design should ensure safety and efficiency in delivering pressurized gases. Ideal skills and experience: - Strong understanding of gas dynamics and airflow design. - Experience with safety standards for pressurized gas systems. Please provide relevant past work and experience.

I already have three completed boards built around an ESP32, DS3231 RTC, EM18 RFID module, buzzers and indicator LEDs. The schematics and layouts are all in KiCad and functionally proven, but a handful of physical tweaks are still needed before I send them to fabrication again. What I need you to do in KiCad: • Reroute a few traces . * Reszie PCBs * Mark / update silkscreen text • Widen or narrow specific pads and drills so the joints wet better and hand-soldering is more reliable. • Shift certain through-hole parts and add a couple of extra mounting pads called out in my notes. • Adjust overall board outlines on two of the three PCBs so they seat perfectly in their enclosures. Turn-around is short; if you are comfortable in KiCad this should fit easily into a...

Ho 6 Raspberry CM4 che non si accendono e, dopo vari tentativi, sospetto un guasto hardware localizzato sulla scheda madre. Non vedo bruciature, crepe o altri segni evidenti, ma il dispositivo rimane completamente morto anche con alimentatore sicuramente funzionante. Cerco chi possa: eseguire la sostituzione dei componenti difettosi • verificare a banco che il Raspberry torni ad avviarsi e a collegarsi correttamente a rete e periferiche USB Preferisco una soluzione chiavi in mano: mi va bene spedire il dispositivo al laboratorio, purché sia testato prima della restituzione. Accetto anche una consulenza dettagliata se riesci a guidarmi passo-passo con gli strumenti giusti. Forniscimi tempi stimati, metodo di test finale e garanzia sul lavoro svolto.

I need a roof-rack system engineered specifically to mount an autonomous-vehicle sensor suite—cameras, LiDAR, and radar—in a clean, reliable, and easily serviceable way. The rack must let me place any of these sensors horizontally, vertically, or at fine-tuned adjustable angles so I can dial in each unit’s field of view without disassembling the whole structure. Your task is to take my rough sketches and dimensional constraints and turn them into a complete mechanical design that can go straight to fabrication. I plan to prototype most parts on an FDM printer and later shift load-bearing components to laser-cut aluminum, so the model needs to include both printable geometries and clear callouts for metal brackets or inserts where extra stiffness is required. If you norma...

I'm looking for a custom protective cover for my Lenovo 2-in-1 laptop that will be folded in half and used near a pool. The cover needs to be clear so we can still use the touch screen. Requirements: - Material: Plastic - Features: - Waterproof seal - Shock absorption - Anti-slip grip - Design: Should cover all ports and buttons Ideal Skills & Experience: - Experience with custom protective covers - Proficiency in working with plastic materials - Knowledge of waterproof and shock-absorbent design principles - Attention to detail for touch screen usability

I need a device designed that is similar in size to a pencil box and shaped like a female sanitary pad. This device is meant for the suction of liquid, specifically water, using a vacuum pump. Requirements: - Must have polymer-coated sides - Center should be made of polymer and silicone to ensure flexibility - Should be compact and portable Ideal skills and experience: - Proficiency in materials science and product design - Experience with flexible polymer and silicone components - Knowledge in vacuum pump integration

I need a seasoned UX designer to help me rethink both my mobile app and its companion website with one clear objective in mind—dramatically increasing user engagement. The core flows are already in place, but interactions feel flat and users drop off after a few screens. Here’s what I’m hoping you can do: audit the current journeys, spot the friction points, and propose fresh, intuitive layouts that keep visitors tapping, scrolling, and coming back. Low-fi sketches are fine at first, but I’ll ultimately need interactive Figma prototypes that my development team can lift straight into build. Because this is as much about psychology as pixels, I’m looking for someone who can point to real-world results from past projects—tell me how your design decis...

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I need a mechanical engineer experienced in injection-molded consumer products to help create a premium modular wall display system. The tasks include optimizing the design, selecting suitable materials, prototyping, and mechanical design. The primary material to be used is acrylic. Ideal candidates should have expertise in injection molding processes, material engineering, prototyping, and CAD design for modular systems. There are 3 components I would like to start with that would be covered under this request. This initial request is for the basics of the system. If possible, after this is complete, I would like to extend the contract and have the person selected design other components for the system.

I’m gearing up for an ambitious “10 million – 10 × 10 ×” initiative and need a top-tier digital product designer to shape the entire user experience from concept to polished visuals. This is a pure digital play—no physical components or packaging—so every interaction, screen, and micro-animation must feel purposeful and seamless on web and mobile. Here’s what I’m expecting: • Discovery & concept framing that translates the core idea behind “10 × 10 ×” into clear user flows. • High-fidelity UI in Figma (Sketch or Adobe XD are fine alternatives if that’s your strength). • Interactive prototypes we can stress-test with early users. • An annotated hand-off package for deve...

i need a skilled product designer to turn it into a production-ready piece. The item is a physical product that, in my own classification, falls under the “Product Designer” category—so the brief is squarely about form, ergonomics, and manufacturability rather than software or circuitry. What I need from you is a full refinement pass: tightening tolerances, choosing final materials and finishes, and re-thinking assembly so the unit can move smoothly into tooling. Along the way I’d like photorealistic renderings I can show investors and early retail partners, as well as clear documentation that any factory can understand at first glance. Key deliverables: • Updated 3D CAD files (STEP / IGES and native format) • Dimensioned manufacturing drawings and exp...

Je lance une nouvelle marque de confection dédiée exclusivement aux vêtements pour femmes, avec un accent clair sur le style professionnel. Pour démarrer, je souhaite développer une première mini-collection de robes de bureau élégantes, bien coupées et adaptées aux environnements corporatifs modernes. Voici ce dont j’ai besoin : • Recommandation de tissus faciles d’entretien, agréables à porter toute la journée et conformes aux standards professionnels. • Conception de 3 à 4 modèles de robes de bureau (croquis et fiches techniques inclus). • Patronage précis et gradation sur un éventail de tailles européennes courantes. • Protot...

CAD Designer Needed – Innovative Golf Bag Divider System (Bighead Golf) Budget $250–700 USD (Fixed Price) Bighead Golf is seeking an experienced industrial designer or CAD engineer to develop a proprietary 14-way divider system for a premium cart golf bag called The Bighead Dugout. This is NOT a request to design an entire golf bag. The focus is on creating a patentable top divider assembly that solves a real-world problem. The Challenge Traditional 14-way golf bags are designed for standard golf grips. My company manufactures an oversized baseball-inspired golf grip with a 50 mm butt-end diameter, which causes clubs to interfere with one another in conventional bags. The objective is to design a divider system that: -Fits within a 10.5” (267 mm) maximum bag openi...

I'm looking for a skilled UI/UX designer to revamp our SaaS platform aimed at individual consumers. The design should be optimized for desktop. Key requirements include: - Researching and understanding the needs of individual consumers - Creating user-centric designs to improve engagement and simplify navigation - Designing a modern, appealing visual style - Delivering high-fidelity mockups and prototypes - Collaborating with our development team for seamless implementation Ideal skills and experience: - Proven UI/UX design experience, especially for SaaS platforms - Strong portfolio showcasing consumer-focused projects - Proficiency in design tools like Figma, Sketch, or Adobe XD - Excellent communication and collaboration skills - Knowledge of usability testing and user research t...

I need a solar-powered piston pump designed specifically for irrigation purposes. The pump will be used to draw water from a river or stream and will be connected to a flood irrigation system. Key Requirements: - The motor must be powered entirely by solar energy which rotates flywheel that lifts a piston of submersible pump up and down - Should be capable of drawing water from a river or stream. - Needs to be compatible with flood irrigation systems and sprinkle. - Durable and weather-resistant, suitable for outdoor use. Ideal Skills and Experience: - Experience with solar-powered water pumps. - Knowledge of irrigation systems, particularly flood irrigation. - Mechanical engineering skills to design and build a robust pump. - Familiarity with water sourcing from rivers or streams. Ple...

I need a custom speaker bucket designed for a motorcycle. The speaker bucket will be mounted on the saddlebags and should be a single speaker system. Key requirements: - Durable and weather-resistant materials - Secure mounting for saddlebags - Quality sound output Ideal skills and experience: - Experience with motorcycle accessories - Knowledge of audio equipment - Strong design and fabrication skills

I'm looking for a skilled product designer or manufacturer to create a custom locking case cover for JLab Jbud Mini earbuds. Requirements: - Material: Silicone - Locking Mechanism: Sliding lock - Additional Features: - Water resistance - Shock absorption - LED indicator for charging Ideal skills and experience: - Experience with silicone products - Knowledge of locking mechanisms - Expertise in waterproof and shock-resistant design - Proficiency in integrating LED indicators into cases Please provide samples of previous work and a detailed proposal.

Project Title: Senior PCB Design Engineer – Secure Control Boards for Hair Styling Appliances Project Overview: We are seeking an experienced PCB Design Engineer to develop high-performance control boards for a new line of professional hair styling tools (Blow Dryer, Flat Iron, and Curling Iron). This project requires a focus on high-wattage thermal management, integrated hardware security to protect intellectual property, and coordination with firmware teams for proprietary protocols. Scope of Work: • Schematic & Layout: Design 2-layer or 4-layer PCBs for high-heat consumer grooming tools (12v and battery). • Thermal Management: Implement IPC-compliant trace widths and component spacing for heating elements (MCH/PTC) and high-speed motors. • PCB-Level Security: De...

I have a compact 433 MHz transmitter built around a CMT2219B RF module driven by a GD32E230G8 MCU. Before we invest in the formal lab work, I want an experienced RF-compliance engineer to look over the current schematic and two-layer PCB layout to maximise our chances of passing both FCC Part 15 and the equivalent ISED requirements. The focus is squarely on RF performance. I have no existing test data, so I’m relying on your insight to flag anything that might push us over the limits once we reach conducted or radiated emissions testing. Key areas include the matching network around the module, antenna feed, ground strategy, return-loss considerations, filtering, and any layout tweaks that could shave a few dB off leakage. You’ll receive the design files (Gerber, pick-and-pla...

I already have the electrical trigger sorted—I can close a relay on command—so what I need now is the physical device that releases a single D-cell (originally horizontally oriented), guides it down a short chute, twists its orientation to vertical, and lets it “stick the landing” on its negative end against a small table-mounted magnet. You’ll take the idea from concept to working prototype: • Design a compact, good-looking drop tube. I’m open to either a well-finished plastic print or a machined metal sleeve, as long as the result feels solid and attractive on the bench. • Specify and integrate the solenoid release. A pull-type makes sense, yet if you see advantages in a push configuration that nudges the cell off a ledge, I’m fle...

I need a clean, production-ready schematic built in EasyEDA for a multi-layer board that will ultimately be fabricated as a 2-layer PCB. You will start from my rough block diagram and turn it into a fully annotated circuit, complete with correctly assigned nets and footprints chosen from the EasyEDA parts library (or custom symbols if a part is missing). The finished file should open without errors in EasyEDA’s online editor, pass Electrical Rule Check, and be ready for me to push straight into PCB layout. Please name every reference designator logically, keep signal groupings tidy, and observe standard 2-layer design conventions such as clear ground and power planes that will translate well once I route traces. Deliverables: • EasyEDA schematic file (JSON) • PDF printo...

I need a mechanical CAD designer to create a compact adjustable aluminum mounting bracket for an embedded IoT sensor package. The bracket must support multiple preset angles, survive moderate outdoor weather, and be ready for CNC, casting, or extrusion review. Full Job Description I need a mechanical CAD designer to design an adjustable mounting bracket for an embedded IoT sensor package. The bracket should be lightweight, rugged, and suitable for outdoor use in moderate weather, including rain, sun, and temperature changes. Preferred material is aluminum, with stainless fasteners and optional anodizing or coating if needed. The key requirement is multiple preset mounting angles, not a loose continuous hinge. I want a compact bracket that can snap or lock into fixed positions such as 0&...

I need a compact, modular eddy-current device built from the ground up to verify the purity of non-ferrous metals during material research and development. Because the unit will often be carried to mines, scrapyards, and temporary field labs, I’m prioritising a rugged, weather-resistant enclosure, battery operation for a full working day, and quick-swap probes so I can tailor frequency and coil geometry to different sample shapes. Core expectations • A handheld main unit that houses the signal generator, receiver, display, data-logging memory and rechargeable power pack. • Interchangeable probe modules covering the typical kilohertz-to-megahertz range used for non-ferrous purity checks, each probe auto-calibrating on connection. • On-board firmware that shows im...

I need a clean, compact PCB layout built around the ESP32-CAM module that will serve as the heart of a small, battery-powered IoT device. Space efficiency and low-power routing are crucial because the board must slip easily into a slim enclosure and run for long stretches on a single charge. You’ll start from my rough hand-drawn schematic and translate it into a production-ready design, paying special attention to: correct pin break-outs for the on-board camera, stable 3 V / 5 V regulation from the battery pack, and clear access to the module’s programming pads. If you think a few passive components or protection features will extend battery life or improve signal integrity, feel free to propose them—I’m open to sensible tweaks that don’t bloat cost or boar...

Freelance UI/UX Designer Needed! (Gym Membership App) We are looking for a talented UI/UX Designer to design mobile and iPad screens for our upcoming Gym Membership Application. You will be working directly within our team's Figma environment to bring this project to life. Project Overview & Scope App Type: Gym Membership & Fitness Platform (tracking, booking, profiles, and memberships). Total Screen Count: 200–250 screens (including responsive mobile and iPad layouts). Deliverables: High-fidelity UI/UX designs and a fully interactive, clickable prototype connecting the flows. Workflow: You will be provided with reference screens and a specific theme/color palette. Your task is to maintain design consistency based on these references while completing the full screen flo...

Electrical engineering activities on electric vehicle prototype in Pune. Needed help asap with wiring, diagnostics etc.

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I'm looking for a skilled fabricator and painter to create a hull plate for a Star Trek model. Requirements: - Fabricate hull plate from plastic - Paint with high detail - Add weathering effects Ideal Skills & Experience: - Experience with plastic fabrication - Proficient in model painting, especially weathering techniques - Attention to detail and ability to follow design specifications The plastic piece is 3 inch by 2.5 inches. I need to replicate the plate in the picture to match a corresponding plate that goes on the hull section of a 1:200 scale Star Trek Enterprise B model.

Job Title: UX Designer – Vanta Social Club Landing Page (Test Project / Part-Time) Location: Remote Type: Part-Time / Freelance Start Date: ASAP Deadline: 24 hours from assignment Project Overview: We are building Vanta Social Club, a premium, founder-focused social club. We are hiring a UX designer to create a demo landing page that reflects a modern, exclusive, and high-trust brand for founders, entrepreneurs, and operators. Deliverables: Desktop landing page design Mobile landing page design Figma link or design file Short explanation of UX decisions (optional: color palette, typography, component style direction) Required Sections: Hero Section – Strong headline, short subheadline, and clear CTA (e.g., “Apply to Join” or “Join the Waitlist”). P...

Refer to the detailed SoW: We need a product/electronics-mechanical designer to develop a simple passive extension adapter for a removable code/calibration chip used in a handheld diagnostic device. The device currently requires the chip to be inserted directly into a small slot. We want to create a male-to-female extension so that one end remains inserted in the device and the original chip can be inserted at the other end of a short cable. We already have a 3D STEP model/mapping of the chip geometry, which will be shared after project allocation. The project includes: Male insert design Female chip receiver design Short cable connection Simple PCB/contact design 3D-printable housing design Prototype fabrication Testing with the device Complete design-file and knowledge transfer Im...

I'm a Warhammer 40K wargamer looking for a 3d modeller to build a texture roller. The roller will be used for quickly applying custom sand dune basing on my models. Requirements: - Design and create a texture roller that replicates detailed sand dune patterns. - The roller should be made from durable plastic. - i have photographs of existing hand sculpts for references Ideal Skills and Experience: - Experience in creating custom texture tools or rollers. Please provide samples of previous work and an estimated timeline for completion.

Developing a handheld consumer air quality monitor for Indian urban market. Need an experienced product designer to take this from industrial design concept to a working physical prototype. Device will measure PM2.5, CO2, and Temperature/Humidity displayed on a small OLED screen. Should feel premium, minimal and trustworthy. Form Factor: — Pocket-sized approx. 110mm × 45mm × 22mm — One-hand operable — Single power/mode button — USB-C charging port — Vent grilles for sensor airflow — Optional magnetic clip or kickstand Deliverables: — 2-3 Industrial design concept sketches and renders — Full CAD with DFM (draft angles, wall thickness, snap fits, parting lines) — Dimensioned 2D engineering drawings for all parts — 3D ...

I'm looking for an experienced hardware developer to assist with my Solar MPPT project, which is currently in development. The specific areas where I need help are: - PCB Layout - Circuit Design - Component Selection Ideal skills and experience: - Strong background in power electronics and solar energy systems - Proficiency in PCB design software - Experience with circuit design and component selection - Ability to work collaboratively and provide detailed documentation Please provide examples of similar projects completed.

I'm looking for a skilled bladesmith to create a high-quality carbon steel survival machete. This machete is intended for survival situations and should be capable of handling a variety of tasks, including: - Chopping wood - Clearing brush - Building shelters The ideal freelancer should have experience in working with carbon steel and a strong background in crafting durable, functional survival tools. Please include examples of previous work and any relevant certifications or training.

I’m looking for someone to build a low-cost prototype external sensor unit for my GrowlerZ iOvilus project. The idea is a small Bluetooth sensor hub that connects to an Android phone/app and sends live readings from external sensors. Prototype requirements: ESP32-C3 or similar low-cost Bluetooth/USB-C microcontroller External EMF/magnetometer sensor Ambient temperature sensor Humidity sensor Barometric pressure sensor Light/lux sensor Battery powered if possible, or USB powered for first prototype Simple 3D-printed or off-the-shelf enclosure Live sensor readings sent over Bluetooth BLE Basic documentation so my app developer can connect it to a Flutter Android app This does not need to be a finished commercial product yet. I’m looking for a working proof-of-concept prototype fi...

I’m building a compact, battery-powered tattoo machine and need a custom rectangular PCB that can both manage the lithium-ion power source and drive the rotary motor smoothly. Core requirements • Power management: on-board charging, cell protection, and a stable step-up/step-down stage to keep the motor supplied as battery voltage drops. • Motor control: for controlling brushed dc motor. To adjust voltage supplied to the motor in 0.1v increments Form factor The board must remain rectangular and no larger than roughly 35 mm on its shortest edge so it can slide into the existing machine housing without modifications. Deliverables • Complete schematic in KiCad, Altium, or Eagle • Optimised PCB layout (Gerber, drill, pick-and-place files) • Bill of...

A polished interface alone doesn't build successful products. Clear information architecture, thoughtful interaction patterns, and outcome-driven design decisions do. I help startups and businesses transform complex ideas into intuitive digital products by combining product thinking, human-centered design, and behavioral UX principles. Every design decision is aligned with user goals and business objectives to create experiences that are scalable, frictionless, and conversion-focused. Services Include: * Product Discovery & UX Strategy * UX Audit & Heuristic Evaluation * Information Architecture (IA) * User Journey Mapping * User Flow & Task Flow Design * Wireframing (Low & High Fidelity) * Web & Mobile Application Design * Dashboard & Enterprise SaaS Design ...

I’m developing a new consumer-electronics device and I need a reliable double-layer PCB designed from the ground up. I will supply the schematic on paper. The project involves ESP32, SMPS designing and other common components .

I’m building a small toy that plays a single prerecorded sound. To make this work I need a PCB design built around the OTP voice chip, a LiPo battery with its recharge module, and an on-board micro speaker. A simple momentary push-button should trigger playback; no other activation modes are required. Space is at a premium: the entire populated board, battery, and speaker footprint must fit comfortably within roughly 3 cm × 3 cm x 4 cm. Deliverables • List of components • Connection intructions Please choose components easy to be found in the web, cheap and use as few as possible.

I’m ready to show the world what our Agentic AI platform can do and I need a polished, interactive demo that makes its value obvious in just a few minutes. The piece must be aimed squarely at potential clients, so every second should focus on benefits and visual proof rather than technical depth. Here is the flow I want: • A smooth account-setup walk-through that highlights how fast a new user can get started (single-screen sign-up, email verification, first-time login). • Seamless transition into concise tutorials of the standout features—think agent creation, autonomous task chains, real-time analytics dashboards, and smart notifications—presented in a way that feels like the viewer is driving the product themselves. I’ll supply brand guidelines, UI ...

I'm looking for a designer to create a TPU case for my G-Shock watch (GMW-BZ5000). The primary purpose of this case is protection, so it needs to be durable and effective against impacts. Key requirements include: - Must fit G-Shock watches perfectly - Should be made of high-quality, durable TPU - Primary purpose is protection - Aesthetic features should focus on color and finish - Finish must be transparent Ideal skills and experience: - Experience with protective cases design - Proficiency in TPU material properties and processing - Strong design skills, especially in color and finish application Note: Kindly check the watch size on the web using the model detail provided. (GMW-BZ5000RC-1JR) Please provide samples of previous work for consideration.

I'm looking for an innovative design for a stainless steel water bottle integrated with a device that encourages proper hydration. Essential functionalities include: - Reminders at set intervals to drink water - Track water intake User notifications should be via sound alerts. User input for water intake goals will be done manually on the device. Ideal skills and experience: - Experience in product design, especially with electronic integration - Knowledge of hydration tracking technologies - Ability to create user-friendly interfaces for manual input

I need a seasoned UI/UX designer to shape an elegant and sophisticated online portfolio that will showcase my graphic-design work. From the very first wireframe to the final interactive prototype in Figma, every screen should feel refined, intuitive, and fully responsive so it looks and performs beautifully on desktop, tablet, and mobile. I already have the content and imagery ready; what I lack is a cohesive experience that marries aesthetics with usability. A clean, reusable design system—complete with typography scales, color tokens, and component states—will be essential so future updates remain consistent. Smooth navigation, clear hierarchy, and thoughtful micro-interactions will help visitors focus on the visuals without distraction. The full scope includes: • Low...