Job Description

To excel as an Embedded Designer for a digital drainage system, a candidate must possess a "T-shaped" skill set: deep expertise in low-level firmware and hardware, combined with a broad understanding of IoT security and medical regulatory standards.

Here is the essential skill set categorized by domain.

1. Core Embedded & Hardware Skills

Languages: Expert C (for bare-metal and RTOS) and C++ (for modular system architecture).
Microcontrollers: Proficiency with ARM Cortex-M series (STM32, Nordic nRF52/91) or TI MSP430.
Peripheral Mastery: Extensive experience with I2C, SPI, UART, and ADC for interfacing with high-precision pressure and flow sensors.
Power Management: Knowledge of designing for battery-operated devices (LDOs, Buck-Boost converters, and low-power sleep state management).
Control Systems: Ability to implement PID control loops to maintain stable vacuum pressure despite varying air leaks.
2. IoT & Connectivity Skills

Wireless Stacks: Hands-on experience with BLE (Bluetooth Low Energy) for local tablet interfacing and Cellular IoT (LTE-M/NB-IoT) or Wi-Fi for hospital-wide monitoring.
Communication Protocols: Experience with MQTT or CoAP for lightweight, reliable data transmission to cloud backends.
Data Serialization: Use of JSON or Protocol Buffers (Protobuf) to structure patient data efficiently.
Cybersecurity: Implementation of TLS/SSL, Secure Boot, and hardware-backed encryption (e.g., using a Secure Element) to protect patient privacy.
3. Medical Device & Regulatory Skills

Standard Compliance: IEC 62304: Software life cycle processes.

ISO 14971: Risk management (identifying what happens if the pump fails or the tube occludes).
IEC 60601-1-2: Knowledge of Electromagnetic Compatibility (EMC) to ensure the device doesn't interfere with other hospital equipment.
Defensive Coding: Proficiency in MISRA C or CERT C to minimize software bugs that could lead to patient harm.
Documentation: Experience writing Software Requirements Specifications (SRS) and Verification & Validation (V&V) protocols.
4. Domain-Specific (Digital Drainage) Knowledge

Fluid Dynamics: Basic understanding of airflow and fluid viscosity to calibrate sensors for chest tube drainage.
HMI Design: Experience implementing small OLED/LCD interfaces or LED status indicators for "at-a-glance" clinical alerts (e.g., "Air Leak Detected" or "Canister Full").
Signal Processing: Ability to apply digital filters (e.g., Kalman or Moving Average) to remove "noise" caused by the patient's breathing or movement from the pressure readings.
Summary Table: The Designer's Toolkit

| Category | Must-Have Tools/Skills |

| Development | GCC, IAR/Keil, Git, CMake, Python (for scripting) |

| Testing | Oscilloscopes, Logic Analyzers, Multimeters, Wireshark |

| Safety | Static Analysis (PC-Lint, QAC), Unit Testing (Unity, Ceedling) |

| IoT | AWS IoT Core or Azure IoT Hub, Nordic nRF Connect SDK |

Job Types: Full-time, Internship, Contractual / Temporary
Contract length: 12 months

Pay: ₹300,000.00 - ₹700,000.00 per year

Benefits:

Work from home
Ability to commute/relocate:

IIT - Bombay, Maharashtra: Reliably commute or planning to relocate before starting work (Preferred)
Education:

Bachelor's (Preferred)
Work Location: In person