Prototyping Jobs

I need a plastic bottle closure cap engineered with an internal cantilever snap-fit. The project starts with concept sketches and moves through a fully detailed 3-D CAD model, ready for rapid prototyping and eventually injection moulding. While I am flexible on the CAD platform—SolidWorks, Catia or even AutoCAD—the final geometry has to translate cleanly to common manufacturing workflows. Because the cap will be used on pharmaceutical packaging, every design choice must respect the relevant pharma-grade material and dimensional control requirements, including tight sealing performance and compatibility with tamper-evident or child-resistant secondary features that we may incorporate later. Once the form is locked, I also need a Design-for-Manufacture review that identifies dra...

UI/UX Designer — Enterprise SaaS Product We are looking for an experienced UI/UX Designer to convert an existing, well-defined low-fidelity product design into a polished high-fidelity Figma design and interactive prototype for an enterprise SaaS MVP. Scope of work: Design approximately 12-14 core MVP screens/workflows. Build upon existing low-fidelity wireframes, UX requirements and design system. Create a consistent, modern enterprise SaaS interface. Design key interaction states including loading, empty, error and success states. Create reusable Figma components and maintain design consistency. Provide a clickable prototype covering key user journeys. Prepare developer-ready specifications and assets. Important: The product scope and functional requirements are already defined....

I need a business-grade projector purpose-built for classrooms that lets teachers and students interact directly with the projected image. The core requirement is an integrated interactive touch-screen capability—think smooth, low-latency annotation right on the board—paired with the brightness and reliability expected from a presentation unit. Here’s what I’m after: • Hardware: a projection engine bright enough for well-lit rooms, plus the touch-enabled overlay or sensor array that will register multiple fingers or a stylus without calibration headaches. • Software: driver package or embedded firmware so the touch layer appears as a standard HID device to Windows, macOS, and ChromeOS. Annotation tools or whiteboard software hooks are a bonus. •...

I’m ready to push a new line of women's shoes that focus on comfort first into development and need a creative footwear designer who can move fast. The goal is to receive production-ready design assets that balance cutting-edge aesthetics with real-world functionality for everyday wear. Here’s what I need from you right away: please share past work that shows your ability to take a shoe from concept to factory-ready tech pack. I’m particularly interested in projects where you’ve solved fit, support, or material challenges, so links or PDFs that highlight those wins will help me choose quickly. Project scope • Translate my brief and target user insights into 2–3 distinct concept directions. • Refine the selected direction into detailed uppe...

I’m building a compact digital clock timer that uses a six-digit seven-segment display, runs from a rechargeable Li-Po cell, and tops up through a USB-C port with on-board charging circuitry. The firmware needs to cover three operating modes: a standard alarm clock, a configurable countdown timer, and a Pomodoro-style work cycle. Here’s what I need from you: • Complete schematic with microcontroller selection, Li-Po charge/​protection IC, buzzer driver, speaker, and all support components. • PCB layout optimized for low power and minimal footprint while keeping the USB-C routing compliant. • BOM • Production-ready Gerbers, drill files, and pick-and-place data. • Simple bootloader or ISP header so I can reflash firmware easily. (is it possib...

I am looking for an experienced embedded hardware and audio electronics engineer to replicate a custom automotive audio reverb/DSP module from scratch (0 to 100 delivery). The original circuit uses a Spin Semiconductor SPN1001-FV1 DSP, a Microchip MCP604 quad op-amp, and an external 8-pin EEPROM chip. I need a complete, end-to-end service: hardware reverse engineering, firmware dumping, PCB design, component sourcing, board assembly, and delivery of a fully functional prototype. Scope of Work & Deliverables: 1. EEPROM Firmware Extraction: Extract/dump the binary code from the 8-pin EEPROM chip on the provided reference board to preserve the custom reverb algorithm. 2. Schematic Capture & PCB Design: Recreate the schematic in EDA software (preferably KiCad or Altium) including the...

I need C code for the SDD1333 display driver. The code should enable graphic drawing capabilities, specifically for lines and shapes. Requirements: - Basic display initialization - Graphic drawing capabilities, particularly for lines and shapes The ideal candidate should have: - Proficiency in C programming - Experience with display drivers, especially SDD1333 - Strong understanding of graphic primitives Please include examples of similar work done. SDA RB4 SCL RB6 RES# RB7 Slave ADDR 0x3C Included main.c file that was used to test wiring. To start, I would like to write numbers 0-140 about 50 x 50 pixels square. Basically a structure that takes a number as it's argument and sends it to SSD1333 for display. Probably white color, but I'll leave that up to you. 50...

We are looking for an experienced Automotive Electronics / PCB Design Engineer to modify and extend an existing vehicle tracking hardware design into an OBD-II telematics device. The project will include two variants: Modern vehicles – OBD-II with CAN communication. Older vehicles – OBD-II with CAN + K-Line support. We prefer a common hardware platform where possible, with different BOM/configuration options for the two variants. The engineer must have proven experience with OBD-II, CAN Bus, K-Line, automotive power supply/protection, PCB schematic design, and vehicle telematics hardware. Initial deliverables will include the updated schematic, BOM, component selection/alternatives, interface design, automotive protection circuitry, and design documentation. IMPORTANT: Th...

I need a small 33 x 29 mm membrane touch latching switch printed circuit board (PCB) with only 8 SMDs on it, copied for a obsolete device. I'm looking to get 100 of these made, possibly 200 depending on pricing. I can send the 6 component list and photos of the circuit board and a complete circuit board is this 2 sided. The active devices are a ATMEL TINY 13A (needs programming and a PA1CD (i think it's a zener diode, 4 resistors and 1 capacitor. On the decal side there is a small led that lights when latched. It needs to be copied exactly because this switch circuit gets glued into a recess in a plastic case with cutouts for the components so the board lays flat. I may not need the switch decal. Run on a 3.7VDC battery. Key Requirements: - Exact replication of the existing PCB...

The goal is to create a sleek, intuitive productivity app centred on real-time collaboration tools and available on iOS, Android, and the web. Wireframes, high-fidelity UI mock-ups, and a clickable prototype should all align to a single design system so users enjoy the same polished experience regardless of device. Key screens will include shared workspaces, live commenting panels, file-sharing modules, notifications, and profile settings. Smooth hand-off files (Figma preferred, but Sketch or Adobe XD are fine) need to be organised with clearly named layers, component libraries, and responsive variants for mobile, tablet, and desktop breakpoints. Acceptance criteria • Consistent branding and typography across platforms • Fully interactive prototype covering main user flows:...

I have an idea for a two-way text-messaging gadget that is no larger than a common correction-tape dispenser. The brain of the unit must be an ESP32-C3 and the only wireless link I need is Wi-Fi—no Bluetooth fallback. Power will come from a small, replaceable battery rather than USB or a rechargeable cell, so every milliamp you can save counts. Here is what I expect when we are done: • A compact PCB layout that fits the rough footprint of correction tape (around 95 × 25 × 15 mm; I can adjust a little if it helps with antenna clearance). • Complete schematic, Gerbers and a concise BOM with readily available parts. • Firmware built with ESP-IDF or Arduino-ESP32 that can send and receive short text payloads over Wi-Fi, display them (even a simple OLED/LE...

I have a consumer-electronics concept ready for the next step and need a clean, production-ready double-layer PCB layout. The board will host a mix of through-hole and surface-mount parts, so component placement and routing must accommodate both styles without ballooning the footprint. Deliverables: • Finished design files in Altium and industry-standard Gerbers • Drill files, pick-and-place data, and a tidy BOM (Excel or CSV) • Test PCB's with assembly I will review the Gerbers in ViewMate and run a quick fit-check in our enclosure CAD; the project is complete once the files import cleanly and the report answers all open questions. Looking for someone in India, Delhi NCR Region. Thanks

We are looking for an experienced industrial/product designer to help develop a new baby bottle and modular feeding system for my brand, Bobi & Co. We have an initial product vision and am looking for someone who can help take it from concept through to a detailed, manufacturable design. The bottle will be designed as a modular system that can adapt as a child grows, with interchangeable feeding components such as a teat, sippy and straw. Experience with baby products, food-contact products, silicone, stainless steel and manufacturing would be highly desirable. Please provide examples of relevant product design work and explain your experience taking products from concept → specifications/CAD → prototype → manufacturing. We are looking for someone who can also guide us t...

I already have a universal BLDC ceiling-fan driver PCB running perfectly from mains power; what it lacks is an Arduino brain. My goal is to plug an Arduino (Uno, Nano, or whichever you prefer) into the existing driver so I can: • adjust fan speed across its full range, • reverse the direction on command, and • set on/off timers, all through a small set of physical push-buttons mounted near the fan. What I need from you is a clean, well-commented sketch plus a minimal wiring diagram that shows exactly where every button, resistor, and logic-level signal ties into the driver board. If any level-shifting, opto-isolation, or triac/FET gating is required, please spell that out and include the component values. Debounced button handling and non-blocking timer logic (e.g., u...

I’m Som Prasad Mahapatra and I’m ready to move my concept from idea to polished Android interface. What I need now is a creative designer who can translate the core features I have in mind into a clean, intuitive and visually engaging UI that feels perfectly at home on Android and respects Material Design best-practices. You’ll take the lead on the full look-and-feel: colour palette, typography, iconography and screen-to-screen flow. I’ll share the functional outline, user stories and any branding assets I already have; you turn them into high-fidelity mock-ups and an interactive prototype that I can show to stakeholders and hand to developers. Deliverables I expect: • High-resolution screen designs for every primary view (Figma, XD or Sketch—your cho...

I'm looking for an industrial designer to create a range of modern, functional decorative homeware items, inspired by Muji's aesthetic. Key Requirements: - Design modern decorative items (e.g., wall art, sculptures, vases). - Primary use of wood, but open to other materials. - The design should be functional yet minimalistic and modern. Ideal Skills & Experience: - Proficiency in industrial design, particularly with wood and other materials. - Strong portfolio showcasing modern, functional designs. - Experience with Muji or similar brands is a plus. - Excellent 3D modeling and rendering skills. Please include a portfolio with your bids.

We are looking for a senior UI/UX/Product Designer who has previously designed a real restaurant POS system. Important — please read before applying Previous restaurant POS design experience is mandatory. Please do not apply if your experience is limited to: * generic SaaS dashboards * restaurant websites * food-delivery/customer ordering apps * booking/reservation apps * e-commerce checkout * conceptual Dribbble POS screens with no complete operational flow * general mobile/web UI without restaurant POS experience We are specifically looking for someone who understands restaurant operations and has previously designed meaningful parts of a system involving areas such as: table/floor management → order taking → modifiers → KOT → kitchen/KDS → running ch...

I'm seeking a specialized piece of machinery to create waves in a waterbed mattress. The mechanism should ideally be a crank and slider, converting circular motion to an up-and-down motion, repeatedly pushing down on the mattress. It needs to run for up to 9 hours. Key Requirements: - Electric power source - Whisper-quiet operation (20-30 dB maximum) - Cord length of 270 inches with an in-line on-off switch - A combination of metal and plastic materials Ideal Skills and Experience: - Mechanical engineering expertise - Experience with quiet electric motors - Proficiency in designing with metal and plastic materials - Ability to create custom, reliable machinery Please provide a detailed proposal, including relevant experience and estimated timelines.

We are Safe Instrumentación (Bogotá, Colombia). We design a modular data-acquisition system for geotechnical and industrial instrumentation, with four boards: a main "Brain" (STM32G0B1RE, FRAM, LoRa, LTE modem, RS-485, native USB) and three accessory nodes (vibrating-wire VM501C, inclination SCL3400, and a DS18B20 temperature chain of up to 200 sensors). We already have a working prototype. We do NOT need firmware — we develop it ourselves. We need a senior engineer (or firm) to take the hardware to production: Review and optimize the existing schematics Verify and strengthen protections (ESD, surge, EFT; galvanic isolation on RS-485; reverse-polarity/overcurrent) Optimize power management and consumption (seamless mains/battery switching, low-power modes, l...

I’m looking for a senior Product Designer / UI Designer / Art Director to redesign Stan from A to Z: product UI, website, design system and launch creatives. Product Stan is a browser extension for gamers browsing Steam. Core experience: Steam current price → Stan identifies the exact game/package/market → if a fresh, genuinely comparable external Steam-key offer qualifies, Stan can show it directly on Steam. If no eligible offer exists, Stan stays discreet and shows nothing. Stan is about current price comparison only. No price history, charts, predictions, “best time to buy”, fake crossed-out prices, “always cheaper” or “best price guaranteed”. Some legacy materials still reflect an older price-history positioning. That direction ...

A functional medical equipment product is already on my bench; what it lacks is a visually inviting shape and form that makes people want to pick it up and use it. I need a mechanical design engineer who can re-imagine the external geometry while respecting the internal components and overall ease-of-use goals. The brief is centred on aesthetic enhancement—specifically refined contours, balanced proportions, and a smooth user interaction—without compromising mechanical integrity. The workflow I picture is straightforward: translate my sketches and rough CAD into elegant 3D models, review iterations together, then prepare manufacturable files. Experience with SolidWorks or Fusion 360 is essential, and an eye for ergonomic detail will set the direction. Deliverables • Op...

I need assistance with optimizing and designing a PCB for a water treatment system. I have all the necessary components, including: - TDS sensors - Pressure sensors - Flow sensors - Relays - Float switch - Solenoid valve The ideal freelancer should have experience in: - PCB design - Component optimization - Working with water treatment systems Please provide a printable PCB design for the finished product.

I need a somewhat durable plastic bucket equipped with gaskets. The bucket is intended for liquid storage. It will be an oval shaped bucket. I need the end of one side of the bucket to snap on and off. If you were to remove the end that snaps off. Then the remaining larger side of the bucket, will have a continuous gasket. This gasket will go along the top rim of the bucket and continue down the now open face of the bucket. If you were to snap the removed end of the bucket back into place, this gasket will seal the two pieces together, and the bucket will be able to hold Water. The smaller piece that is removable will not need any gaskets. The black will be approximately 11 inches by 6 inches wide and approximately 4 inches tall Requirements: - Gaskets should be securely mounted t...

Industrial Designer Needed – Modular Hunting Bino Harness System I’m looking for an experienced industrial/product designer to help develop a new modular binocular harness system for hunting. The concept combines technical soft goods with custom mechanical attachment hardware. I already have the overall product concept, functionality, and design requirements established. I need someone who can turn the concept into a realistic, manufacturable design and prototype-ready CAD/specification package. The Product The system will use interchangeable binocular carriers designed for different optic sizes, including 42 mm and 56 mm binoculars. The user can carry either carrier individually or mechanically connect both carriers together. A major part of the project is developing a li...

I'm looking for a skilled material engineer or specialist to create a 12-inch urethane hinge for a small sailboat rudder. This hinge will need to withstand high-stress conditions and is intended to replace an old, degraded hinge that turned into a slippery goo after 20 years. Key Requirements: - The hinge must be durable, specifically designed to resist cracking, deforming, or detaching under stress. - It should withstand exposure to water without degrading. - Ideally, you should have experience with high-performance materials, particularly urethane or similar polymers. Please provide samples or evidence of previous work with high-durability hinges or similar applications. Thank you!

I have a working prototype of a transverse dental floss holder with a thumb-operated mechanism to tighten floss for insertion between teeth and slacken it for cleaning them. Key requirements: - Material: Plastic - Compatibility: Both waxed and unwaxed floss - Tension variation: Push button mechanism, preferably tightening floss by more than 10mm achieved by prototype - Ease of threading floss through the mechanism, which may require hinged case Ideal skills and experience: - Experience with plastic molding or fabrication - Familiarity with dental care tools - Mechanism design expertise, especially push-button systems

I’m building a resource-collection simulator on Roblox and need an experienced developer who can take the idea from concept to a playable experience. The core loop is simple: players gather resources, watch their inventory grow, and feel that satisfying rush every time they cash in. Where I’d love your expertise is in turning that loop into something visually and mechanically engaging across several themed maps—think a medieval village one moment, a neon-lit future city the next, then a serene wilderness. the game is a clicker game. u click, hatch pets, then battle other players, rare pets are stronger, and different players have different elo You would handle scripting in Lua, asset integration in Roblox Studio, and the backend work needed for smooth data storage an...

The goal is clear: make my digital product noticeably easier to navigate so users find what they need without friction. At the moment, menus feel cluttered and key actions take too many clicks. I need a seasoned UX mind to evaluate the current flow, pinpoint pain-points, and propose tangible improvements that elevate overall usability. Here’s how I picture the collaboration: 1. Discovery & Audit • Walk through the existing journey, recording hurdles and drop-off spots. • Benchmark against current best practices in information architecture. 2. Concept & Wireframes • Sketch alternative navigation structures and low-fidelity wireframes that simplify the hierarchy. • Highlight quick-win tweaks alongside deeper structural changes. 3. Pro...

I have complete CAD drawings for a small tabletop dryer that combines a basic airflow system, a low-temperature heating element, and a simple timer circuit. The goal is to prove the concept, not to create a production-ready unit, so I’m looking for a pragmatic builder who can source readily available components from my preferred parts list and put together one clean, safely wired prototype. What I’ll hand over: • PDF and STEP drawings with dimensions, airflow path, and wiring diagram • A spreadsheet listing the off-the-shelf fan, cartridge heater, timer module, and enclosure parts I’d like to use (all stocked by major suppliers) What I need back: • A fully assembled, bench-tested prototype that runs for at least one hour without overheating • Bas...

I’m ready to turn a clear productivity concept into a polished iOS application. The core goal is to help users work smarter and stay organized, so I’ll rely on your expertise in Swift, Xcode, and Apple’s Human Interface Guidelines to bring the idea to life. Here’s how I see the collaboration unfolding: you’ll first translate my workflow sketches and use-case notes into an intuitive UI, then build the underlying logic and data layer. Clean architecture, smooth state management, and native performance are non-negotiable. I’d also like guidance on selecting the best Apple frameworks—whether that’s Core Data, CloudKit, or third-party services—so the app feels fast and remains easy to maintain. Deliverables at each milestone will include: ...

I want a self-contained GPS tracker that snaps magnetically onto a car’s chassis and keeps reporting its real-time location without relying on any phone app or cloud dashboard. All positioning data should come straight from the device itself—either displayed on a small built-in screen, spoken through a buzzer/voice prompt, or transmitted by SMS/GPRS so I can query its whereabouts on demand. Key points I need covered: • Stand-alone operation – no external app or web portal required • Strong magnetic mount suitable for everyday cars, remaining secure at highway speeds and through rain, heat, and light off-road vibration • Accurate GPS/GLONASS reception with frequent, user-configurable update intervals • Long-life rechargeable or replaceable ba...

I need a compact safety box to securely store documents and jewelry while traveling. The box should feature a basic lock for security. Essential requirements: - Size: Portable and travel-friendly - Material: Durable and lightweight - Security: Basic lock mechanism Ideal skills and experience: - Experience in designing portable security containers - Knowledge of materials suited for travel safety boxes - Basic locking mechanisms expertise

Je souhaite collaborer avec un ingénieur horloger capable de transformer mon idée de chronographe en un prototype fonctionnel. Le projet porte sur un chronographe mécanique au style résolument moderne, logé dans un boîtier en acier inoxydable. Objectifs clés • Définir l’architecture du mouvement chronographe (roue à colonnes ou came, embrayage horizontal/vertical, épaisseur visée). • Réaliser la modélisation 3D complète (CAD) du calibre, du boîtier, de la lunette, de la couronne, des poussoirs et du fond. • Spécifier les tolérances, matériaux internes, traitements de surface et contraintes d’assemblage. • Fournir les plans te...

Taşınabilir bir kontrolcü tasarlıyorum; ESP32, ekran ve joystick gibi tüm bileşenler elimde fakat ekranın ESP32’ye doğru şekilde bağlanması ve çalıştırılması için desteğe ihtiyacım var. Öncelikli hedefim: • Ekranın ESP32’ye hatasız fiziksel bağlantısı (pin planı, güç hatları, arka ışık kontrolü). • Uygun sürücü kütüphanesini (örn. TFT_eSPI, LCD, OLED vb.) yapılandırıp örnek kodla görüntü alabilmek. • Joystick okuma kodunu ekranda canlı gösterecek basit bir demo hazırlamak (isteğe bağlı, zaman elverirse). Benden beklenen çıktı: 1. Kısa sürede uygulanabilir bağlantı şeması (KiCad, Fritzing veya PDF). 2. Çalışır örnek kaynak ko...

Buscamos diseñador(a) UI/UX con excelente criterio visual y dominio avanzado de Figma para trabajar en la primera fase de la identidad digital de Controlve, empresa mexicana de tecnología especializada en rastreo GPS, telemetría y gestión de flotas. Ya contamos con identidad de marca y una base de Design System en Figma. No buscamos empezar desde cero ni desarrollar todavía el sitio web completo. Esta primera fase consiste en revisar y mejorar nuestra base visual, definir una dirección gráfica profesional, trabajar formas, composición, patrones, fondos, iconografía y algunos componentes/activos reutilizables, y aplicar el lenguaje visual resultante en una pantalla o sección demostrativa. El trabajo deberá reali...