PsiQuantum’s mission is to build the first useful quantum computers—machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems.  Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries.  Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry—including partners like GlobalFoundries—we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don’t feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure.  In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining—and that now is the time to scale.  PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies—including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical—to prepare quantum solutions for real-world impact.  Quantum computing is not an extension of classical computing. It represents a fundamental shift—and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real.  Come join us.  Job Summary: The Senior Director, Finance Business Partner – Optical Circuit Switch (OCS) serves as the strategic finance leader supporting the General Manager and leadership team of the Optical Circuit Switch business unit. This role is responsible for driving financial performance, supporting product and commercial strategy, and providing decision support for investments, product development, customer opportunities, and business growth initiatives. The Senior Director will act as a trusted advisor to the General Manager, helping shape business strategy while ensuring financial rigor and accountability.  This role will report to the VP Finance.  Responsibilities: Strategic Partnership to the General Manager • Serve as the primary finance partner to the OCS General Manager and business leadership team. • Participate in strategic planning and business reviews. • Translate business strategy into actionable financial plans and performance targets. • Challenge assumptions and provide independent financial perspectives on key decisions. Business Unit Financial Leadership • Own financial planning, forecasting, and performance management for the OCS business. • Develop revenue, margin, and operating expense forecasts. • Analyze business performance and identify opportunities to accelerate growth and improve profitability. Product & Commercial Finance • Partner with Engineering and Commercial teams on product strategy and investment decisions. • Support pricing, customer proposals, contract negotiations, and commercial evaluations. • Evaluate business cases for new products, technology investments, and market opportunities. • Assess product profitability and portfolio performance. Growth & Investment Analysis • Lead financial modeling for strategic initiatives and expansion opportunities. • Support make-versus-buy analyses, partnership evaluations, and investment decisions. • Develop scenarios and sensitivities for emerging market opportunities. Experience/Qualifications: • Business unit finance, commercial finance, or product finance leadership. • Experience supporting technology, hardware, semiconductor, or advanced manufacturing businesses. • Strong background in product economics, investment analysis, and growth strategy. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum 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. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to recruiting@psiquantum.com. We are not accepting unsolicited resumes from employment agencies. Base pay is one part of the total compensation package. Full-time roles are eligible for equity and benefits. Our compensation ranges reflect the cost of labor across multiple U.S. geographic markets, and we pay based on defined geographic zones. This position may be filled within one of the following U.S. geographic zones, each with its own salary range. Actual compensation may vary outside of these ranges and is dependent on various factors including, but not limited to, a candidate's qualifications, relevant education and training, competencies, experience, geographic location, business needs, and internal equity. Your recruiter can share more details about the salary range applicable to your location during the hiring process.   • Zone 1 - Bay Area and NYC  • Zone 2 - Examples include Los Angeles and Washington DC  • Zone 3 - Examples include Austin, Chicago, and Sacramento  • Zone 4 - Examples include Nashville and Phoenix/Tempe and many remote locations  This position includes the following benefits: competitive health coverage for you and your dependents, 401(k) with company match, equity grants, access to financial wellness tools and planning resources, wellness benefits, family support programs, life and disability insurance, paid leave programs, company-designated paid holidays, discretionary time off (DTO), and an end-of-year company shutdown. Some of these benefits have eligibility requirements and may vary based on location, role, or employment status. Many of these benefits are subsidized or fully paid for by the company.  The estimated annual base salary range for this role is:  Zone 1 $240,300—$282,400 USD Zone 2 $216,300—$254,200 USD Zone 3 $192,300—$225,900 USD Zone 4 $168,300—$197,700 USD