© 2020 Aeternum Innovations

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Careers at Aeternum

Aeternum is an innovative sensor/engineering company in the DC metro area developing next-generation modular sensor systems for weather, air quality, and environmental monitoring. Our projects support critical applications in public safety, defense, and scientific research. Join our multidisciplinary team and play a key role in building reliable, field-ready sensor solutions from the ground up.

UK Office (Liverpool)

Electrical Engineer for Embedded Sensor Systems, PCB Designer and Firmware Programming
(Liverpool, UK)

Position Overview:
The Electrical Engineer will lead the design, development, and implementation of new sensor hardware, PCB design and embedded firmware for modular air quality and environmental monitoring systems. You will participate in the full product lifecycle—from concept and prototyping to field deployment and iterative improvement. This is a hands-on engineering role with opportunities for technical leadership and cross-functional collaboration.

Key Responsibilities:

  • Design, prototype, and test custom sensor circuits and embedded systems for environmental and air quality monitoring.
  • Develop and optimize firmware for microcontroller-based embedded devices (C/C++), including power-up tests, control logic, and edge algorithm integration.
  • Design PCB to deliver robust, scalable sensor modules.
  • Perform verification, debugging, and failure analysis using oscilloscopes, logic analyzers, and other test equipment.
  • Develop test firmware, software interfaces, and automated test procedures for sensor validation.
  • Integrate analog front ends, wireless communication (Bluetooth Low Energy, cellular- NB-IoT, LTE-M, LoRa, etc.), and peripheral components.
  • Document theory of operation, requirements, and user manuals; contribute to intellectual property documentation.
  • Support process improvement and participate in the transition from prototype to scalable manufacturing.
  • Mentor junior engineers and interns as the team grows.

Required Qualifications:

  • Minimum of Bachelor’s degree in Electrical or Computer Engineering or related field (Master’s preferred).
  • 5+ years minimum experience designing and developing embedded systems, preferably for IoT, sensor, or related industries.
  • Proven experience with embedded firmware development in C/C++ and version control (git).
  • Strong background in sensor integration, analog/digital circuit design, and PCB layout.
  • Experience with microcontroller platforms (e.g., Nordic NRF chips, ESP32, ARM Cortex-M, Cypress PSOC, STM32).
  • Familiarity with implementing and optimizing edge algorithms on embedded devices.
  • Hands-on experience with hardware debugging and test instrumentation.
  • Excellent technical documentation and communication skills.

Preferred Skills:

  • Experience developing environmental, weather, or air quality sensors.
  • Knowledge of wireless protocols (BLE, LoRa, Zigbee) and low-power system design.
  • Exposure to cloud connectivity, IoT platforms, or data analytics integration.
  • Experience with rapid prototyping and transitioning designs to manufacturing.
  • Knowledge of the Diptrace PCB design software is useful.
  • Knowledge of Zephyr RTOS and Nordic NRF chips useful.

Work Environment:

  • Office, laboratory, and light-manufacturing settings.
  • Must be able to communicate technical information and operate standard lab/test equipment.
  • Occasional field deployment and testing of sensor systems.

Additional Information:

  • This position offers growth potential into senior technical or project leadership roles.

How to Apply:

Send your CV and a brief cover letter describing your relevant experience and interest in modular sensor development to Rosec@w.aeternum.co

 

US Office(Dulles, VA)

Electrical Engineer for Embedded Sensor Systems, PCB Designer and Firmware Programming
(Dulles, VA)

Position Overview:
The Electrical Engineer will lead the design, development, and implementation of new sensor hardware, pcb design and embedded firmware for modular weather and air quality monitoring systems. You will participate in the full product lifecycle—from concept and prototyping to field deployment and iterative improvement. This is a hands-on engineering role with opportunities for technical leadership and cross-functional collaboration.

Key Responsibilities:

  • Design, prototype, and test custom sensor circuits and embedded systems for environmental and weather monitoring.
  • Develop and optimize firmware for microcontroller-based embedded devices (C/C++), including power-up tests, control logic, and edge algorithm integration.
  • Knowledge of Zephyr and Nordic NRF chips useful.
  • Design PCB to deliver robust, scalable sensor modules.
  • Perform verification, debugging, and failure analysis using oscilloscopes, logic analyzers, and other test equipment.
  • Develop test firmware, software interfaces, and automated test procedures for sensor validation.
  • Integrate analog front ends, wireless communication (Bluetooth Low Energy, cellular- Nb-IOT, Lte-M, LoRa, etc.), and peripheral components.
  • Document theory of operation, requirements, and user manuals; contribute to intellectual property documentation.
  • Diptrace knowledge useful.
  • Support process improvement and participate in the transition from prototype to scalable manufacturing.
  • Mentor junior engineers and interns as the team grows.

Required Qualifications:

  • Minimum of Bachelor’s degree in Electrical or Computer Engineering or related field (Master’s preferred).
  • 5+ years minimum experience designing and developing embedded systems, preferably for IoT, sensor, or regulated industries.
  • Proven experience with embedded firmware development in C/C++ and version control (git).
  • Strong background in sensor integration, analog/digital circuit design, and PCB layout.
  • Experience with microcontroller platforms (e.g., Nordic NRF chips, ESP 32, ARM Cortex, Cypress PSOC, STM32).
  • Familiarity with implementing and optimizing edge algorithms on embedded devices.
  • Hands-on experience with hardware debugging and test instrumentation.
  • Excellent technical documentation and communication skills.

Preferred Skills:

  • Experience developing environmental, weather, or air quality sensors.
  • Knowledge of wireless protocols (BLE, LoRa, Zigbee) and low-power system design.
  • Familiarity with DoD, DHS, or SBIR-funded research projects.
  • Exposure to cloud connectivity, IoT platforms, or data analytics integration.
  • Experience with rapid prototyping and transitioning designs to manufacturing.

Work Environment:

  • Office, laboratory, and light-manufacturing settings.
  • Must be able to communicate technical information and operate standard lab/test equipment.
  • Occasional field deployment and testing of sensor systems.

Additional Information:

  • US Citizenship required.
  • This position offers growth potential into senior technical or project leadership roles.

How to Apply:

Send your resume and a brief cover letter describing your relevant experience and interest in modular sensor development to Rosec@w.aeternum.co

 

Software Engineer – Embedded Systems & IoT
(Dulles, VA)

Position Overview:
Join our Aeternum team to design and develop embedded software for next-generation weather, air quality and environmental sensors. You’ll work hands-on with hardware engineers to build robust, scalable sensor platforms using modern protocols and microcontrollers. This is a unique opportunity to influence architecture and technology choices as we scale our products for real-world deployment.

Essential Requirements:

  • Proficient in C and C++ for embedded systems
  • Strong understanding of embedded systems architecture and development
  • Experience with Zephyr RTOS
  • Knowledge of NB-Iot, Lte-M and LoRa wireless technologies

Valuable Additional Experience:

  • Familiarity with Nordic Semiconductor chipsets (NRF series)
  • Experience implementing and troubleshooting LoRa mesh networks
  • Experience with micro to mesoscale mesh networking
  • Understanding of computer networking fundamentals
  • Experience configuring and managing local networks and routers

Key Responsibilities:

  • Design, develop, and maintain embedded software for sensor modules and gateways
  • Integrate wireless protocols and optimize for low-power operation
  • Collaborate with hardware engineers to bring up new sensor boards and debug hardware/software interfaces
  • Develop and document communication protocols and data handling for sensor networks
  • Participate in architecture decisions for scalable, modular sensor deployments
  • Write clear technical documentation and contribute to project planning and code reviews
  • AI modeling on sensor and on cloud/on- premises backend.
  • Bachelor’s or Master’s degree in Computer Engineering, Electrical Engineering, or related field
  • 5+ years of experience in embedded software development
  • Experience with real-time operating systems (Zephyr, FreeRTOS, etc.)
  • Familiarity with IoT security best practices and over-the-air update mechanisms
  • Experience with test-driven development and continuous integration for embedded systems

What We Offer:

  • Competitive salary plus bonus potential
  • Flexible paid time off
  • Hybrid/remote work options with monthly team meetups
  • Opportunity to work on innovative sensor technology with real-world impact

Location:
DC metro area preferred.

How to Apply:

Send your resume and a brief summary of your relevant experience and interest in embedded sensor systems to rosec@w.aeternum.co

©2025 Aeternum Innovations Limited
Questions? Contact us at info@w.aeternum.co