About Sperra
Sperra (formerly known as RCAM Technologies) is an innovative cleantech startup developing advanced 3D concrete printing technologies to reduce the cost of renewable energy and create domestic jobs. Our research is at the forefront of developing solutions for floating solar, offshore wind, wave energy projects, and subsea energy storage. We are supported by leading funding agencies such as the Department of Energy, California Energy Commission, National Science Foundation, and others.
Who You Are:
What You Will Do:As an R&D intern, you will support the development of Sperra's 3D concrete printing technology by contributing to various aspects of research, design, and prototyping. You will work with our team hands-on to develop new methods and systems that push the envelope of 3D concrete printing. Primary responsibilities:
Qualifications, Skills, and Experience:Required:
Preferred:
Sperra is an equal opportunity employer and is committed to fostering an environment that is inclusive and welcoming for leadership and team members with different backgrounds, identities, and lived experiences. By welcoming “diversity,” we mean that our organization embraces differences in identity, age, culture, ancestry, ethnicity, race, color, sexual orientation, physical ability, learning style, religion, familial status, marital status, occupation, veteran status, nationality, and the many forms of composite subjectivity and life experiences. Hence, we strongly encourage applications from BIPOC (Black, Indigenous, and People of Color) individuals, people from working-class backgrounds, women, LGBTQIA+ people, and veterans. Join us in shaping the future of renewable energy!

Sperra is building a new foundation for renewable energy. We design and manufacture 3D-printed concrete infrastructure for offshore wind, floating solar and wave energy projects. Using automated design and construction, we enable local teams to manufacture custom anchoring solutions using local materials. Our approach minimizes material waste, reduces carbon emissions and ensures more resilient infrastructure for clean energy to power this generation and the next. Learn more at sperra.com.