Principal Systems Engineer

Principal Systems Engineer

Cupertino, CA / Systems Engineering / Full-Time

Mojo Vision is pioneering a highly flexible, wafers-in, wafers-out micro-LED platform to unlock AI applications in multiple market segments. Built over the past decade by our world-class engineers, our system-level approach combines advanced 300mm silicon architecture with GaN-on-Silicon emitters, proprietary quantum dots, photodetectors, micro-lens arrays, and packaging to solve conventional trade-offs in size, brightness, bandwidth density, and power. Our scalable, manufacturing-ready approach enables breakthrough products such as next-generation optical interconnects and AI glasses.

At Mojo, our team includes talented professionals with expertise in hardware, software, optics, photonics, electronics, chemistry, and applied physics. We are based in Cupertino, California and are backed by some of the world’s leading technology investors.

Roles and Responsibilities

• Serve as technical leader for strategic customers developing next-generation optical interconnect systems.
• Lead architecture reviews, requirements definition, technical workshops, trade studies, and design reviews.
• Translate customer requirements into clear engineering specifications and actionable product recommendations.
• Drive system-level analysis across optical, electrical, thermal, mechanical and reliability engineering.
• Use Mojo Studio, simulation tools, characterization data, and first-principles engineering to evaluate customer-specific use cases and guide technical decisions.
• Build Python or MATLAB based engineering tools to automate analysis, accelerate trade studies, and improve team productivity.
• Partner cross-functionally with optics, device, reliability, manufacturing, and software engineering teams.
• Communicate technical insights clearly to customer engineering teams, internal stakeholders, and executive audiences.

Required Skills

• MS or PhD in Electrical Engineering, Optical Engineering, Physics, Mechanical Engineering, Computer Engineering, or a related field.
• 8+ years of experience in systems engineering, system architecture, or multidisciplinary product development.
• Strong systems-thinking skills and ability to reason across multiple engineering domains.
• Hands-on experience developing engineering models, simulations, or data-driven analyses.
• Programming experience in Python, MATLAB, or similar languages for analysis and automation is a must.
• Excellent written, verbal, and visual communication skills.
• Experience leading technical discussions with customers, partners, or cross-functional engineering teams.

Preferred Skills

• Experience in optical interconnects, silicon photonics, high-speed electrical systems, or signal integrity.
• Thermal engineering, advanced semiconductor packaging, mechanical integration, or reliability engineering.
• Semiconductor product development, AI infrastructure, datacenter networking, or Model-Based Systems Engineering (MBSE).

Salary Range: $194,000 - $232,000 - $287,000

Level: Principal Engineer

Pay: $194,000.00 - $287,000.00 per year

Work Location: In person