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Full-Time position in Valencia, SPAIN / Remote

We are looking for a Firmware Engineer Intern to join our team in providing life-changing services for
rural homes in sub-Saharan Africa and Asia. We help design life-changing products (solar kits, cookstoves, etc.) and build fintech and management software that allows distributors to provide essential services affordably using mobile payments to over 1.000,000 people, adding thousands more every month.

This is a paid internship.


Smart people

... who are firmware engineers
... excited to learn new things
... who are independent and flexible
... work well with others, listen and communicate clearly


  • It’s best if you already know C/C++

  • Interest in developing complex firmware

  • Basics of Firmware architecture knowledge

  • Interest in microcontroller programming (STM32 or MSP430)

  • Basic Electronic skills (Reading a schematic, debugging a PCB)

  • Excellent written and oral communication skills

If you’re missing some of that and think you still have the chops, we say go for it!


  • Assisting the firmware team in writing code for our current and next generation of systems

    Interest in developing complex firmware

  • Assisting an interdisciplinary team of engineers in the execution of product designs from concept
    to production including design, prototyping, validation, testing, and certification

    Interest in microcontroller programming (STM32 or MSP430)

  • Commitment to rigorous testing practices)

What’s the deal?

  • Start Date: TBC

  • Location: Ideally at our offices in Valencia, Spain but remote work can be arranged


We’d love to hear from you. Please click “apply” to submit your resume and tell us why you’re excited to join us.

If you want to know a bit more about what we are doing you can check our website:
Solaris Offgrid.


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