Clinical ECG ESP32 Development
Budget: $10 – $30 USD
**Title:**
Embedded Hardware & Firmware Engineer for ECG Device (ESP32, BLE, PCB Design)
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**Project Description:**
We are developing a portable multi-lead ECG device and are looking for an experienced embedded engineer (or small team) to support hardware design and firmware development for our first working prototype.
This is a from-scratch development project (not cloning any existing product). We may take high-level reference from existing ECG devices, but the design, firmware, and implementation must be original.
---
**Project Scope:**
**1. Hardware Design**
* ECG circuit design (low-noise analog front-end)
* Component selection (preferably medical-grade or equivalent)
* Microcontroller integration (ESP32 preferred)
* Power management (Li-ion battery + charging)
* BLE connectivity design
**2. PCB Design**
* Schematic design
* PCB layout
* Gerber file generation
* BOM finalization
**3. Firmware Development**
* ESP32 firmware development
* BLE communication (device ↔ mobile app)
* Real-time ECG data acquisition
* Data packet transmission
* Basic power management (sleep mode, battery monitoring)
**4. Prototype Support**
* Assist in debugging after PCB fabrication
* Support 1–2 iteration cycles if required
---
**Key Requirements:**
* Experience with embedded systems (ESP32 or similar MCU)
* Strong experience in PCB design tools (Altium / KiCad / Eagle)
* Understanding of low-noise analog circuits (important for ECG)
* Experience with BLE communication
* Ability to work with real-time signal data
---
**Highly Preferred:**
* Experience in ECG / biomedical / wearable devices
* Familiarity with ECG ICs (ADS1292 / ADS1298 or similar)
* Experience building end-to-end embedded products
---
**Deliverables:**
* Complete schematic design
* PCB layout + Gerber files
* Final BOM
* Working firmware (source code included)
* Basic documentation
---
**Budget & Timeline:**
* Fixed Budget: $2000 (Milestone-based)
* Timeline: 4–6 weeks for first working prototype
---
**Important Notes:**
* This is a serious product development project, not a basic Arduino-level task
* We are looking for experienced engineers only (not beginners)
* All deliverables must include source files and full ownership
---
**Screening Questions (Mandatory):**
1. Have you worked on any ECG or biomedical device before?
2. Which PCB tools do you use?
3. Have you worked with ESP32 + BLE in real-time applications?
4. How would you approach low-noise ECG signal design?
5. Can you share any similar past work or portfolio?
---
Embedded Hardware & Firmware Engineer for ECG Device (ESP32, BLE, PCB Design)
---
**Project Description:**
We are developing a portable multi-lead ECG device and are looking for an experienced embedded engineer (or small team) to support hardware design and firmware development for our first working prototype.
This is a from-scratch development project (not cloning any existing product). We may take high-level reference from existing ECG devices, but the design, firmware, and implementation must be original.
---
**Project Scope:**
**1. Hardware Design**
* ECG circuit design (low-noise analog front-end)
* Component selection (preferably medical-grade or equivalent)
* Microcontroller integration (ESP32 preferred)
* Power management (Li-ion battery + charging)
* BLE connectivity design
**2. PCB Design**
* Schematic design
* PCB layout
* Gerber file generation
* BOM finalization
**3. Firmware Development**
* ESP32 firmware development
* BLE communication (device ↔ mobile app)
* Real-time ECG data acquisition
* Data packet transmission
* Basic power management (sleep mode, battery monitoring)
**4. Prototype Support**
* Assist in debugging after PCB fabrication
* Support 1–2 iteration cycles if required
---
**Key Requirements:**
* Experience with embedded systems (ESP32 or similar MCU)
* Strong experience in PCB design tools (Altium / KiCad / Eagle)
* Understanding of low-noise analog circuits (important for ECG)
* Experience with BLE communication
* Ability to work with real-time signal data
---
**Highly Preferred:**
* Experience in ECG / biomedical / wearable devices
* Familiarity with ECG ICs (ADS1292 / ADS1298 or similar)
* Experience building end-to-end embedded products
---
**Deliverables:**
* Complete schematic design
* PCB layout + Gerber files
* Final BOM
* Working firmware (source code included)
* Basic documentation
---
**Budget & Timeline:**
* Fixed Budget: $2000 (Milestone-based)
* Timeline: 4–6 weeks for first working prototype
---
**Important Notes:**
* This is a serious product development project, not a basic Arduino-level task
* We are looking for experienced engineers only (not beginners)
* All deliverables must include source files and full ownership
---
**Screening Questions (Mandatory):**
1. Have you worked on any ECG or biomedical device before?
2. Which PCB tools do you use?
3. Have you worked with ESP32 + BLE in real-time applications?
4. How would you approach low-noise ECG signal design?
5. Can you share any similar past work or portfolio?
---