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Principal Electrical Engineer (Military Hardware)

Intellisense Systems, Inc., is a Southern California high tech company specializing in advanced military defense, homeland security, and energy solutions. We are seeking a Principal Electrical Engineer for our Intelligent Display and Sensor Systems Department.  The successful candidate will bring significant expertise in Electronics Engineering Design and Development, Mixed Signal Analog, and Digital Electronic Hardware Design.

 This role will develop embedded electronics for avionics systems.  We are looking for an energetic and motivated candidate with the ability to address multiple projects and requirements in our rapidly growing business. The candidate will have a proven track-record of decomposing a complex overall effort into easily manageable subroutines / sections. The candidate will work with the team to create and implement designs from concept to prototype to qualified product. This is a hands-on technical position for someone looking for a role as a key contributor on a growing team. 

What You'll Do:

  • Lead the design and development of electronic systems from requirements definition, through schematic capture, board layout, prototyping, troubleshooting, design optimization and design for manufacture.
  • Design and develop embedded firmware including top level executive, real time scheduler, hardware specific subroutines, interrupt service routines, device drivers, power management modules and communications functions.
  • Oversee design validation and verification testing of embedded hardware and firmware systems, identifying and correcting problem areas and design deficiencies while maintaining engineering documentation of the development and optimization process.
  • Develop and review technical data package documentation.
  • Interface with internal multidisciplinary engineering team and management as well as external stakeholders including customers, design engineering representatives, and contractors to ensure hardware design quality and customer satisfaction
  • Other duties as assigned

What You'll Bring:

  • B.S. Degree in Electrical Engineering, Computer Engineering or a related field with 10+ years of experience or master’s degree with 8+ years’ experience in embedded systems hardware and firmware development.
  • A minimum of 5 years of direct experience in the design of electronics and firmware for high reliability or mission critical systems.
  • In depth, practical, hands on experience designing and troubleshooting complex circuit designs – hardware and firmware – to the component level.
  • VPX backplane board design experience and Mission Computer / Graphics Processor Unit (GPU) experience desired.
  • A history of developing hard real time, deterministic firmware to control, monitor, and supervise embedded electronics hardware in mission critical military and industrial systems.
  • Extensive experience with CAD/CAE systems including Schematic Capture, PCB Layout (Altium Designer preferred), Logic Simulators, Digital Logic, Communications, Avionics, and Data Conversion.
  • Effective communication skills (oral and written) including generating engineering documents such as ICD, ATP, QTP, ESS and presenting design progress at major project milestones (e.g., SRR, PDR, CDR) is a plus.
  • Participate in internal hardware design reviews and perform code reviews for firmware.
  • Experienced in developing interface control documents and board level test procedures a plus.
  • Perform hands-on requirements verification testing in the lab to produce and finalize documentation.
  • A proven track record as a contributor in a team environment is essential.  
  • Experience with standard communication interfaces such as I2C, SPI, RS-232, RS-422, RS-485, USB 2.0 / 3.0, Ethernet, Gigabit-Ethernet. CAN BUS, MIL-STD-1553, ARINC-429, and ARINC-708, a plus
  • Understanding of DO-254 / DO-178 design development is a plus
  • U.S. Citizenship is required. Must be willing and able to obtain a Security Clearance or have an active Secret Security Clearance.

What You Could Expect:

  • The freedom to take risks, to innovate, and to be rewarded.
  • Partner with trusting leadership that approaches tasks and requests with urgency.
  • Deliver products that are continually recognized as industry disruptors.


  • Alternative Work Schedule (Alternating Fridays Off)
  • Medical, Vision, Dental Insurance
  • Flexible Spending Accounts 
  • Health Savings Accounts
  • 4 Weeks PTO a year (plus an additional 40 hours of PTO your first day)
  • 10 paid holidays 
  • Tuition Assistance
  • Employee Assistance Program (EAP)
  • 401(k) with 4% employer matching
  • Workers Compensation Insurance
  • Voluntary Life Insurance


Unless otherwise stated in the requirements section of an individual job listing, our positions require U.S. Citizenship, U.S. Permanent Residency, or other status as a U.S. Person as defined by 8 USC 1324b(a)(3). We are proud to be an EEO/AA employer M/F/D/V. Intellisense Systems, Inc is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Applicants will receive fair and impartial consideration without regard to race, sex, color, religion, national origin, age, disability, veteran status, genetic data, or religion or other legally protected status.

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