Jobs at Sennos (Now Hiring) — 2 open

Position Summary

The Embedded Systems Hardware Engineer designs, prototypes, tests, and troubleshoots embedded controller hardware used in industrial sensor products. This role works across the full lifecycle of embedded electronics, from early schematic and layout through validation, production support, and field-driven design iteration. The position combines hands-on hardware development with close collaboration across firmware, test, and manufacturing teams as products scale into volume deployment.

Responsibilities

• Design and develop embedded controller hardware for industrial sensor systems, from concept through production release
• Own schematic capture, component selection, and PCB layout for small form-factor boards, including power, signal integrity, and manufacturability considerations
• Develop and validate designs using embedded CPUs (primarily ESP32 family), ADCs, power regulation, battery management, and peripheral interfaces
• Prototype, test, and debug hardware using bench instrumentation and in-system diagnostics
• Collaborate closely with firmware engineers to support multiple code branches, enabling hardware features and debugging system-level behavior
• Contribute targeted diagnostic and validation firmware (e.g., logging hooks, input validation, test routines) to accelerate hardware bring-up and troubleshooting
• Partner with test, manufacturing, and field teams to refine existing designs based on real-world performance, reliability, and deployment feedback
• Support production ramp and sustaining engineering activities as products are delivered in volume

Required Qualifications

Education:

• Bachelor's degree in Electrical Engineering or closely related field

Experience:

• Hands-on experience designing embedded hardware using ESP32-class microcontrollers
• Experience designing power systems, including battery-powered devices, charging, and power management
• Experience with PCB schematic capture and layout for compact, high-density boards

Skills:

• Strong understanding of analog-to-digital conversion, signal conditioning, and mixed-signal design
• Proficiency with board-level interconnects and serial bus technologies (e.g., SPI, I²C, UART, CAN)
• Ability to debug hardware-firmware interactions using scopes, logic analyzers, and diagnostic code
• Strong problem-solving skills with attention to detail
• Excellent communication and collaboration skills across technical teams

Preferred Qualifications

• Experience supporting hardware designs through manufacturing and field deployment
• Familiarity with industrial sensor systems or ruggedized embedded products
• Experience contributing to embedded firmware, particularly diagnostic logging and validation code
• Exposure to custom or application-specific microcontrollers beyond ESP32 platforms
• Knowledge of EMI/EMC design considerations for industrial environments
• Experience with fermentation, brewing, or process control applications

Team Working Style

• Works closely with firmware, test, and manufacturing teams to solve cross-disciplinary problems
• Comfortable balancing new product development with iterative improvement of deployed designs
• Values practical debugging, clear communication, and learning from field data

Physical Requirements and Work Environment

• Ability to sit and stand for extended periods while working at a workbench and computer
• Ability to lift up to 25 pounds occasionally for equipment and prototype handling
• Lab/office environment with access to electronics testing equipment
• Minimal travel required (occasional visits to manufacturing facilities or customer sites)

This job description is intended to convey information essential to understanding the scope of the position and is not an exhaustive list of skills, efforts, duties, responsibilities, or working conditions associated with it. Responsibilities may change according to business needs.

Equal Opportunity Statement

Sennos is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Please Note
Applicants must be permanently authorized to work for ANY employer in the United States. We are unable to sponsor or take over sponsorship of an employment visa at this time.

Recruitment Agency Notice:

We do not accept unsolicited candidate submissions. We only work with recruitment agencies that have a signed agreement with our HR team. Unsolicited resumes will not incur any fee obligation.