Principal Embedded Architect — Energy Tech (On-Site, Equity)

Lumex Talent; San Francisco (CA); On-site; USD 170,000 - 260,000; Full time

Job summary

Lumex Talent is seeking a Principal Engineer in San Francisco, CA to own the technical vision and architecture of their embedded firmware platform for a fast-growing energy tech startup. This pivotal role involves defining a long-term roadmap, guiding a team of engineers, and transforming prototypes into production-ready systems. Candidates should have extensive experience in C/C++, firmware architecture across multiple commercial products, and modern RTOS. Join a company focused on sustainable energy solutions, offering compensation between $170,000 and $260,000 plus equity.

Qualifications

• 8+ years of hands-on experience in bare-metal or near-bare-metal programming.
• Proven track record of architecting full firmware platforms.
• Experience managing connected devices in the field.
• Deep familiarity with FreeRTOS, Zephyr, or similar embedded OS.
• Comfortable with PWM, ADC, SPI, CAN, and using logic analyzers.

Responsibilities

• Define and own the long-term roadmap for our embedded platform.
• Conduct assessments to transition hardware from prototypes to production.
• Direct the work of a team of embedded engineers.
• Build and own robust Over-the-Air (OTA) firmware upgrade systems.
• Solve complex integration issues spanning hardware to full product architecture.

Skills

Expert-Level C/C++

Architecture Pedigree

Real-World Fleet Experience

Modern RTOS Expertise

Hardware Fluency

Job description

Lumex Talent is seeking a Principal Engineer in San Francisco, CA to own the technical vision and architecture of their embedded firmware platform for a fast-growing energy tech startup. This pivotal role involves defining a long-term roadmap, guiding a team of engineers, and transforming prototypes into production-ready systems. Candidates should have extensive experience in C/C++, firmware architecture across multiple commercial products, and modern RTOS. Join a company focused on sustainable energy solutions, offering compensation between $170,000 and $260,000 plus equity.