Jobs at Infleqtion

Leads global software development and serves as technical lead for quantum sensing products. Develops and productizes React/Next.js frontends and Python FastAPI backends integrating with embedded hardware, Rust middleware, and device-control systems. Responsibilities include architecture, code reviews, testing, documentation, CI/CD, Jira and sprint management, team coordination, and transitioning prototypes into production-ready systems.

Design and integrate precision mechanical infrastructure for quantum gravity gradiometers deployed in laboratory, terrestrial, and space environments. Lead structural, thermal, vibration, shock, tolerance, and environmental analyses; integrate optical, electrical, vacuum, thermal, fiber, cable, and spacecraft interfaces; manage suppliers and product lifecycle reviews; support testing, risk resolution, reliability, and manufacturing readiness. Present technical decisions to customers and leadership while mentoring junior engineers.

Develop scalable, high-performance RTL and embedded processing systems for quantum computing applications. Collaborate with physicists and multidisciplinary engineering teams, architect processing chains, build analytical models, and tune and troubleshoot systems in laboratory environments. Apply software engineering practices including testing, version control, CI, static analysis, automated builds, documentation, and code reviews. The role may also lead small technical teams or projects.

Leads the engineering operating system for complex quantum hardware and firmware products from concept through manufacturing transition. Establishes lifecycle processes, technical gate reviews, quality systems, AS9100 readiness, configuration and document control, engineering tools, laboratory operations, equipment planning, technical-data security, and cross-functional manufacturing-transition practices. Builds and manages Engineering Operations across quality, configuration management, document control, and laboratory functions while scaling consistent practices internationally.

Lead the mechanical systems IPT for quantum gravity gradiometer hardware, driving requirements closure, design trades, CAD, analysis, drawings, procurement readiness, assembly, and testing. Coordinate with cross-functional teams, suppliers, and customers while ensuring alignment, vacuum, thermal, vibration, cleanliness, and integration requirements are met. Facilitate design and manufacturing reviews, manage risks and configuration control, mentor engineers, and provide schedule and cost inputs.

Develop and execute test strategies for atomic clock QRF systems, lead end-of-line testing, build optical and electrical test benches, perform reliability and compliance validation, support board bring-up and embedded debugging, and automate testing with Python. The role also involves operating laboratory equipment, analyzing and visualizing test data, and collaborating with hardware, firmware, and software teams from prototype through production.

Own the RF and electromagnetics discipline for quantum radio-frequency sensing systems. Design, simulate, integrate, calibrate, characterize, and troubleshoot RF structures, signal chains, sensor interfaces, and controlled test environments. Define requirements, performance budgets, measurements, verification methods, and acceptance criteria. Develop test automation and data analysis tools, reconcile models with laboratory results, and collaborate across physics, hardware, software, manufacturing, and technician teams to transition prototypes into repeatable systems.

Designs, simulates, integrates, calibrates, and verifies broadband RF hardware and electromagnetic test environments for quantum sensors. Responsibilities include developing signal chains, RF structures, measurement systems, performance budgets, automation, and calibration methods; troubleshooting hardware; analyzing laboratory data; and collaborating across physics, electrical, optical-mechanical, embedded, software, manufacturing, and technician teams. The role also documents designs and verification results and supports prototype-to-production transfer.

Supports compliant, compelling cost proposals for commercial and U.S. Government R&D solicitations. Collaborates with proposal managers, system managers, subject matter experts, contracts, quality, procurement, and other departments to prepare comprehensive cost proposals and government-compliant cost volumes. Requires strong attention to detail, organization, stakeholder relationship-building, proposal pricing expertise, and flexibility to meet government deadlines.

Manage a portfolio of complex quantum software and computing projects as a cohesive program. Responsibilities include coordinating multidisciplinary teams and resources, managing schedules, budgets, costs, risks, subcontractors, staffing, deliverables, and communications. The role supports proposals and contracts, develops project plans, tracks milestones, manages scope and change, engages technical leaders, contributes to forecasts and roadmaps, and represents the company to external stakeholders. Travel up to 10% may be required.

Leads company-wide FP&A, including annual planning, quarterly forecasting, long-range modeling, management and Board reporting, performance analysis, strategic finance, resource allocation, and cash planning. Partners with executives and business leaders to develop actionable financial insights, support capital allocation and M&A, improve forecasting processes, and establish scalable FP&A infrastructure for a growing public technology company.

Design, develop, test, and maintain integrations between quantum computing software and cloud, HPC, AI, scientific, and enterprise platforms. Build APIs, SDK integrations, plugins, workflow connectors, and hybrid quantum-classical workflows. Collaborate with internal teams and external partners on architectures, prototypes, documentation, testing, monitoring, troubleshooting, and deployment. Support reliable access to quantum resources within existing computational environments while contributing to software architecture and product roadmaps.

Lead revenue recognition, contract accounting, and ASC 606 analyses for complex multi-element, milestone, government, and commercial contracts. Prepare technical accounting memos, maintain revenue schedules and waterfall reports, support monthly/quarterly close and SEC disclosures, assist PCAOB audits, and improve NetSuite revenue processes and SOX controls while partnering cross-functionally with legal, program management, FP&A, and contracts teams.

Provides administrative and operational HR support across the employee lifecycle. Coordinates preboarding, onboarding, orientations, I-9 and background checks, maintains employee and contractor records, supports workforce classifications and HR reporting, answers routine policy and benefits questions, reconciles invoices, administers referral bonuses, and assists with HR projects and process improvements while maintaining confidentiality and accuracy.

Lead systems engineering for a Quantum Gravity Gradiometer pathfinder: manage requirements, ICDs, V&V, integration and test, configuration/document control, risk and FMEA, architecture and SWaP tracking, and product lifecycle execution while enabling repeatable systems practices and customer-ready deliverables for government and commercial R&D programs.

Provide legal counsel for complex commercial and strategic transactions (70–80% focus); draft, negotiate, and manage customer, government, licensing, SaaS, vendor, and research agreements; advise on export controls, national security, and public company reporting; align contracts with finance on revenue recognition and disclosure; develop scalable legal playbooks, training, and approval frameworks; and support cross-functional corporate, regulatory, and governance matters within a lean legal team.

The Senior Embedded Systems Engineer designs and develops embedded software and hardware for Quantum RF systems, collaborating with cross-functional teams to ensure successful system integration and deliver high-performance solutions.

Designs, models, aligns, tests, troubleshoots, and validates optical subsystems for neutral-atom quantum computing platforms. The role involves hands-on laboratory work, Zemax optical modeling, tolerance and sensitivity analysis, experimental characterization, system integration, technical documentation, and workflow improvement. Collaboration with physicists and multidisciplinary engineering teams is required. Candidates need a relevant bachelor’s degree, optical alignment and laboratory measurement experience, Zemax familiarity, rigorous documentation habits, and willingness to learn SolidWorks.

Designs and develops precision opto-mechanical subsystems for scalable quantum computing hardware. Responsibilities include optical and mechanical integration, simulations, tolerance and thermal analysis, laboratory assembly, optical stability characterization, root-cause investigations, documentation, and design-for-manufacturing. The engineer collaborates with physicists and multidisciplinary engineering teams to transition research prototypes into repeatable, maintainable products.

Designs, models, integrates, and validates precision opto-mechanical subsystems for scalable neutral-atom quantum computing hardware. Responsibilities include tolerance and error budgets, FEA, thermal and vibration analysis, laboratory characterization, design-for-manufacturing, root-cause investigations, and transitioning research-grade systems into repeatable production hardware. Collaborates with physicists and multidisciplinary engineering teams while providing technical leadership and mentoring to developing engineers.