Top 3 Senior embedded systems engineer (ee/fw) Jobs in Lebanon, Nh

Senior Embedded Systems Engineer (EE/FW)
Simbex —Lebanon, NH
- $140,000 - $160,000 a year
- Full-time
- Hybrid work
- 7 years
- Azure
- Bachelor of Science
Quick Apply
Sr. Electrical Engineer (Firmware & Electronics Design)
SignalQuest, LLC —Lebanon, NH
- $90,000 - $185,000 a year
- Full-time
- Bachelor of Science
- Math
- Bachelor's degree
- Health savings account
- Health insurance
Quick Apply
7d

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7d
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Senior Embedded Systems Engineer (EE/FW)

Simbex -
Lebanon, NH

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Job Details

Full-time
$140,000 - $160,000 a year

Qualifications

Inter-Integrated Circuit (I2C) protocol
Embedded systems
Electronic sensors
Firmware
Electrical schematic reading and interpretation
Schematic development for electrical drafting
Universal asynchronous receiver-transmitter (UART) protocol
Firmware development
Digital signal processing (DSP) system configuration
Electrical engineering training
Printed circuit board (PCB) layout
RTOS
Serial peripheral interface (SPI) protocol
Oscilloscopes
ARM
Embedded C
Logic analyzers
Microcontroller programming
Sensors
Debugging

Full Job Description

Simbex is seeking a Senior Embedded Systems Engineer to own the full hardware-firmware stack for a next-generation IoT wearable platform. This is a dual-discipline role: you will independently design and develop embedded hardware circuits and PCBs alongside production-grade Zephyr RTOS firmware — from component selection and schematic capture through board bring-up, sensor integration, and field deployment. The ideal candidate is a hands-on engineer who takes end-to-end ownership in building sensor-based hardware and firmware.

Essential Functions:

Electrical Engineering & Hardware Development

Own hardware design from component selection and schematic capture through PCB layout review and design-for-manufacture

Lead board bring-up: power sequencing, peripheral initialization, signal integrity verification, and fault isolation

Design and characterize low-power analog front-ends and power management subsystems for battery-operated wearables

Develop hardware test fixtures and produce electrical characterization reports

Firmware Architecture & Development

Architect and deliver production Zephyr RTOS firmware on ARM Cortex-M/R targets

Author device drivers, BSPs, and devicetree overlays; implement sensor acquisition pipelines for IMU-based impact detection

Design low-power state machines and event-driven architectures for wearable operation

Set firmware coding standards, CI/CD pipelines, and architecture guidelines for the team

IoT & Wireless Connectivity

Implement BLE stacks for real-time telemetry and configuration; design OTA update mechanisms via MCUboot

Integrate cloud connectivity (MQTT/CoAP) and evaluate edge vs. cloud trade-offs for impact detection

Signal Processing & Algorithm Integration

Port impact detection algorithms from MATLAB or Python into constrained C/C++ firmware

Apply sensor fusion (Madgwick, Mahony, complementary filter) for accurate head kinematics from multi-axis IMU data

Optimize DSP routines for speed and memory footprint on resource-constrained targets

Testing & Quality

Define and execute unit, HIL, and system integration test plans; build automated regression frameworks

Maintain design documentation, traceability matrices, and test reports; support compliance activities

Required Qualifications:

BS or MS in Electrical Engineering, Computer Engineering, Embedded Systems, or related field

7+ years of embedded development experience, including 3+ years on production-shipped products

Hands-on EE skills: independently read schematics, perform board bring-up, and debug hardware/firmware interaction

Proficiency with bench instrumentation (oscilloscope, logic analyzer, power analyzer) for power characterization and debug

Experience selecting microcontrollers, RF SoCs, and sensor ICs (IMU, accelerometer, gyroscope) for product designs

Strong C/C++ in bare-metal and RTOS-based embedded contexts

Demonstrated Zephyr RTOS experience: devicetree, Kconfig, module system, and west toolchain

Experience with ARM Cortex-M SoCs (Nordic nRF52/nRF53, STM32, or similar) and peripherals: SPI, I2C, UART, USB

BLE firmware experience and familiarity with OTA update workflows (MCUboot preferred)

Preferred Qualifications:

Sensor fusion algorithm experience (Madgwick, Mahony) and algorithm porting from MATLAB/Python

Exposure to sports biomechanics, head impact research, or wearable athletic sensing

Cloud IoT platform experience (AWS IoT Core, Azure IoT Hub) and embedded security (TLS/DTLS, secure elements)

Multi-core SoC development (e.g., nRF5340) or experience in a regulated/safety-critical product environment

Quick Apply

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senior embedded systems engineer (ee/fw) jobs in lebanon, nh

Senior Embedded Systems Engineer (EE/FW)

Sr. Electrical Engineer (Firmware & Electronics Design)

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