R&D Engineer,

About Sperra

Sperra is redefining marine construction using 3D concrete printing technology. We are pioneering a new market—Blue Ocean Infrastructure—developing large-scale concrete products to tackle the world’s biggest challenges in energy, coastal resilience, and sustainable infrastructure. Our R&D drives innovation in structural design, concrete materials, and manufacturing technology, turning bold ideas into tangible solutions that perform in the harshest ocean environments. Through hands-on experimentation and technical excellence, Sperra is creating infrastructure that not only performs but transforms what’s possible in the blue economy.

Who You Are

You are a hands-on, mechanically minded engineer who thrives in a lab and experimental environment. You enjoy rolling up your sleeves, working directly with robotics, CAD, materials, and tools, and helping turn prototypes into real-world prints. You are independent and proactive, able to take ownership of printing experiments and troubleshooting challenges as they arise. You bring :

• A Bachelor’s degree in Engineering (Civil, Mechanical, or related field).
• 1–3 years of experience in construction, prototyping, fabrication, or additive manufacturing.
• Strong mechanical aptitude and comfort working with tools, machinery, and lab equipment.
• Familiarity with CAD, robotics, or automated fabrication systems is a plus.
• Bonus : Experience with 3D concrete printing, large-scale printing systems, or construction automation.

What You’ll Do

As an R&D Engineer at Sperra’s Los Angeles lab, you’ll support the development, testing, and implementation of next-generation materials and methods for large-scale 3D concrete printing systems. This role is highly hands-on and requires active participation in lab experiments, robot operation, CAD modeling, and materials testing. Key responsibilities include :

Qualifications

Required

Preferred

What You’ll Get

Why Join Sperra

This is a unique opportunity to grow with a startup at the forefront of renewable energy, advanced manufacturing, and concrete technology. Your work will directly support critical infrastructure innovations that contribute to energy transition and climate resilience.

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.

The pay range for this role is :

70,000 - 135,000 USD per year(US National)

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