Senior Device Software Engineer

San Francisco

Our Mission  

SPAN develops products that accelerate the rapid adoption of renewable energy in the home. The flagship SPAN Smart Panel is the first true evolution for the traditional home electric panel, harnessing enhanced technology for metering, monitoring, and control. An expanded product suite of intelligent, integrated solutions radically lowers the cost and complexity of energy upgrades–including solar, batteries and EVs–empowering homeowners to be active, resilient and informed players in the energy market. 

The Role

The Device Software Platform Team maintains the embedded Linux platform powering SPAN’s hardware products in energy metering, load management, and EV charging. As a senior engineer on the team, you will:

• Partner with teams across SPAN — embedded software, electrical design, systems engineering, data science, and cloud infrastructure — to prioritize and build new capabilities for our embedded platform.
• Build new tools, libraries, and development workflows to support reliable, high-velocity development of SPAN’s power management behavior and 3rd-party battery storage integrations.
• Advise product-focused engineering teams on best practices for building observable and reliable application software that runs well at scale.

Representative Projects

• Design and implement an application communication suite spanning a diversity of protocols/physical interfaces (e.g., USB, serial, CAN-FD, power-line communications, wireless) and support application SDKs in Rust, Python, and C++.
• Overhauling the telemetry and alerting systems on our embedded Linux platform to provide cost-effective visibility on our growing install base.
• Building a framework for behavioral / simulation testing of power control behaviors in our application stack. Extending our in-house job queue-based hardware-in-the-loop testing platform.

About You

Required Qualifications:

• 5+ years of experience building reliable and maintainable software in Rust, C/C++, Go, or other compiled, statically-typed languages.
• Solid fundamentals in software and API design best practices, instrumentation, testing, and debugging.
• Excellent interpersonal communication and collaboration skills.
• Track record of taking ownership over projects and willingness to help others with theirs, from design and code review through to mentorship of new employees.

Bonus Qualifications:

Experience with one or more of:

• Building networked home consumer hardware products, using embedded Linux (Yocto or Buildroot, systemd), real-time operating systems (FreeRTOS), wireless communications (e.g. WiFi, Bluetooth, 802.15.4), cloud backends (REST, GraphQL, MQTT, AWS IoT).
• Building, maintaining infrastructure for pre-production performance and hardware-in-the-loop testing.
• Build and release practices for high-quality production software releases, internal tools, and container-based development environments.
• Data analysis with Pandas and other tools from the scientific Python ecosystem.
• Clean energy hardware in a multidisciplinary environment.

The U.S. base salary range for this position is $134,000 - $179,000 plus benefits, equity and variable compensation for Sales-related roles. This range represents SPAN’s good faith estimate of competitively-priced salary for the role based on national, real-time industry data from companies of a similar growth stage. This range reflects minimum and maximum new hire salaries for the role in San Francisco county. Within the range, individual pay is determined by location and individual factors including relevant skills, experience and education or training. This range correlates to the relative level of the candidate we believe we need for the role and may require an adjustment for candidates of a different level. 

Your recruiter can share more about the specific salary range for the location this role is based during the hiring process. 

 Life at SPAN

SPAN embraces diversity and equal opportunity in a serious way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. 

Headquartered in San Francisco’s vibrant SoMa neighborhood, we are an eclectic group of creative thinkers who value open communication, teamwork, and a ‘make it happen’ approach to addressing complex challenges. 

We’re hiring talented individuals who are driven by success and are passionate about shaping the future of renewable energy. If that sounds like you, we’d love for you to consider joining the rapidly growing team at SPAN.

The Perks:

⚡ Competitive compensation + equity grants at a well-funded, venture-backed company

⚡ Comprehensive benefits (including medical; dental, vision, life and disability insurance)

⚡ Comfortable, sunny office space located near BART and Caltrain public transit

⚡ Strong focus on teambuilding and company culture (events, meet-ups, clubs)

⚡ Flexible hours and unlimited PTO

Interested in joining our team? Submit an application today and we’ll be in touch with next steps!