Senior Mechanical Engineer

Quantum computing holds the promise of humanity’s mastery over the natural world, but only if we can build a real quantum computer. Psi Quantum is on a mission to build the first real, useful quantum computers, capable of delivering the world‑changing applications that the technology has long promised.

We are seeking an experienced Senior Mechanical Engineer with a strong background in precision tooling, optical alignment, and manufacturing processes. This role requires a highly skilled engineer proficient in Solid Works, Product Data Management (PDM), and advanced mechanical design principles. The successful candidate will play a key role in the design, development, and implementation of precision mechanical systems for optical alignment applications.

• Lead the design, development, and optimization of precision mechanical tooling for optical alignment.
• Utilize Solid Works and PDM for design creation, modification, and data management.
• Develop detailed mechanical drawings and 3D models adhering to industry standards.
• Perform tolerance analysis, material selection, and structural integrity assessments for mechanical designs.
• Design and integrate motion control systems, including hexapod mechanical systems, for precision alignment applications.
• Collaborate with cross‑functional teams, including optical engineers, manufacturing teams, and quality control, to ensure product performance and manufacturability.
• Drive design reviews, risk assessments, and failure mode effect analysis (FMEA) for mechanical designs.
• Implement and maintain best practices for document control and version management within PDM.
• Provide mentorship and technical guidance to junior engineers and design teams.
• Stay up-to-date with advancements in mechanical design, precision tooling, motion control, and optical alignment technologies.
• PLC controls selection, wiring, schematics are a plus.
• Pneumatic systems design and assembly are a plus.

• Bachelor’s or Master’s degree in Mechanical Engineering or demonstrated proficiency in the field.
• Minimum of 5 years of experience in mechanical engineering, with a focus on precision tooling, optical alignment, and motion control.
• Proficiency in Solid Works and PDM is required.
• Strong understanding of manufacturing processes, including CNC machining, 3D printing, and precision assembly.
• Experience in tolerance analysis, GD&T, and mechanical stress analysis.
• Proven ability to lead design projects from concept through production.
• Excellent problem‑solving skills and attention to detail.
• Strong verbal and written communication skills.
• Experience with optical systems, hexapod mechanical systems, or photonics is a plus.

• Experience with Finite Element Analysis (FEA) for mechanical designs.
• Familiarity with quality control processes in manufacturing environments.
• Experience with Jira for project and task tracking.
• Experience with Arena PLM.
• Experience with Net Suite.

U.S. Base Pay Range: $150,000 – $185,000 USD
Bay Area Pay Range: $170,000 – $202,000 USD

Psi Quantum provides equal employment opportunity for all applicants and employees. Psi Quantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws.

We will only reach out using an official Psi Quantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to