Jobs at Infleqtion

Supports financial reporting, operational accounting, budgeting, forecasting, dashboards, reconciliations, audit preparation, grant accounting, and financial systems improvements. The role also leads pricing analysis for government bids and new contracts, partners with R&D and operations teams on budget alignment, and identifies process automation opportunities within a growing quantum technology company.

Designs and owns precision opto-mechanical subsystems for scalable neutral-atom quantum computing hardware. Responsibilities include mechanical design, optical integration, tolerance and error budgeting, FEA, stability and vibration analysis, laboratory validation, design-for-manufacturing, root-cause investigations, and transition from research prototypes to scalable production hardware. The role collaborates with physicists and cross-functional engineers while providing technical leadership and mentorship.

Conduct quantum software R&D focused on quantum compilation and algorithms; develop and optimize software for the Superstaq cloud platform; collaborate with physicists and engineers; support customers; contribute to proposals and global programs; publish research and present findings; and apply quantum algorithms to real-world problems.

The Quantum Software Engineer role involves designing, implementing, and optimizing quantum error correction protocols, collaborating with teams to enhance quantum system reliability and scalability.

Own the full subcontract lifecycle for government and defense programs, including sourcing, RFPs, proposal evaluation, cost analysis, negotiations, contract execution, performance administration, modifications, compliance, and closeout. Maintain audit-ready procurement files and ensure FAR, DFARS, ITAR, EAR, and CPSR compliance while coordinating with suppliers, engineering, quality, finance, legal, and program management teams.

Develop applications and algorithms for quantum computers, collaborate with teams on research, and optimize software for cloud platforms.

Senior Counsel will lead complex commercial contracting and strategic transactions, including customer, partnership, government, licensing, technology development, SaaS, data, vendor, and procurement agreements. The role advises on intellectual property, export controls, national security, public company obligations, revenue recognition, disclosure, governance, and regulatory matters. It also develops legal processes, playbooks, approval frameworks, and training while partnering with commercial, technical, finance, and executive teams in a high-growth public technology company.

Lead end-to-end technical execution for a terrestrial quantum gravity gradiometer program. Own system architecture, technical decisions, risk mitigation, verification and validation, testing, and product readiness. Coordinate multidisciplinary engineering teams spanning systems, mechanical, thermal, opto-mechanical, electrical, embedded controls, and software. Partner with program leadership on cost, schedule, roadmaps, and technical execution while mentoring engineers and supporting deployed quantum sensing products.

Develop and maintain CI/CD, build, test, and deployment pipelines for integrated software, firmware and gateware. Manage hardware-in-the-loop configurations, lab servers, networks and backups. Implement IaC, containerisation, secure software supply-chain practices, and documentation while collaborating with multidisciplinary engineering teams to ensure production-grade, traceable releases and high system uptime.

Design and validate mixed-signal, digital, analog, and RF electronic systems for quantum technology products. Responsibilities include signal-chain architecture, circuit modeling and simulation, FPGA-based signal processing, PCB design and layout, RF shielding and routing, manufacturing-file generation, supplier engagement, test planning, verification, validation, risk management, and reliability analysis. The role is hybrid in Oxford, UK, with laboratory work and up to 10% international travel.

Integrate complex multidisciplinary hardware systems involving RF, analogue, digital, optical, mechanical, and embedded components. Responsibilities include developing architectures, cabling, interfaces, system diagrams, and technical documentation; performing system bring-up, commissioning, troubleshooting, verification, and validation; diagnosing signal integrity, grounding, EMI/EMC, timing, communications, and power issues; and supporting deployment, supplier integration, risk management, and reliability improvements.

Administer contracts from negotiation through closeout, including reviewing terms, assessing risk, ensuring FAR and DFARS compliance, managing deliverables and changes, advising stakeholders, coordinating government property reporting, and completing final invoicing and disposition activities. The role also maintains contract records, supports billing and collection, and collaborates with accounting, program teams, customers, and government officials.

Supports sales and commercialization of quantum hardware products by identifying prospects, engaging technical and business stakeholders, preparing presentations and quotations, managing CRM pipelines, coordinating supplier registration and procurement processes, and overseeing custom orders through production and delivery. Serves as a technically credible liaison between customers and internal Product, Engineering, Production, Contracts, Finance, Quality, and Supply Chain teams.

Supports federal government affairs strategy across congressional and agency engagement, appropriations, authorization, policy analysis, stakeholder mapping, and executive briefings. Monitors legislation, budgets, regulations, and hearings; develops policy materials and engagement plans; coordinates government meetings, industry coalitions, consultants, and internal technical teams; and supports lobbying, compliance, and funding efforts related to quantum technology, national security, space, energy, and critical infrastructure.

Develop and own production software controlling and calibrating neutral-atom quantum computers. Build backend services, control frameworks, scientific data pipelines, CI/CD systems, and containerized deployments. Debug the full control stack from embedded kernels through distributed services, collaborate closely with physicists and hardware engineers, and create tooling for experiments, real-time image analysis, and object detection.

Qualify, assess, audit, and monitor suppliers for quality-system capability, technical competence, capacity, delivery, and risk. Manage supplier nonconformances, material review, root-cause analysis, CAPA, SCARs, quality plans, first-article inspections, traceability, and objective quality records. Interpret engineering documentation and ensure compliance with Government and defense contract requirements, including FAR Part 46. Collaborate with suppliers, procurement, engineering, manufacturing, program management, and customers.

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.

Develop modular scientific software platforms integrating models, data, simulations, and engineering workflows for quantum systems. Build MBSE tools, APIs, data models, visualizations, and orchestration capabilities; create HPC- and GPU-enabled simulations, optimization, digital twins, and machine-learning workflows. Collaborate with multidisciplinary scientists and engineers to validate models, improve manufacturability, and deliver maintainable production software using rigorous engineering practices and AI-assisted development tools.