Infleqtion

Security Engineer

• Drive strategic growth across the National Security sector.
• Development of large, multi-year programs within the Department of War (DoW) and the broader U.S. defense and intelligence ecosystem.
• Bring breakthrough quantum sensing and computing solutions to America’s warfighters.
• Engage and expand accounts within the government sector.
• Create, identify, shape, and pursue high-value opportunities aligned with Infleqtion technologies.
• Engage directly with government stakeholders to understand mission needs and shape acquisition pathways.
• Build and manage a robust pipeline through disciplined account planning and opportunity qualification.
• Partner closely with Infleqtion’s capture and execution teams to drive opportunities through to closure.
• Build trusted relationships across key DoW organizations.
• Collaborate with Defense Prime partners on capture, teaming, and integration strategies.
• Represent Infleqtion at industry days and other solicitation events.
• Maintain accurate pipeline management, forecasting, and reporting to support corporate planning and revenue execution.

National Security Business Development Executive

• Position Infleqtion as the go-to quantum technology partner for mission-ready national security solutions in the UK, U.S., and Australia.
• Responsible for audience strategy, messaging, and integrated marketing campaigns.
• Develop and own the audience strategy for national security and sensing sectors.
• Craft compelling, mission-focused messaging and narratives that translate technical value into clear strategic advantage.
• Partner with product, PR, and sales teams to launch and amplify defense-related programs, products, and partnerships.
• Drive content and engagement programs — including white papers, webinars, explainer videos, and mission-related storytelling.
• Lead government ecosystem engagement, securing speaking opportunities and presence at key defense and policy events.
• Manage strategic paid outreach and co-branded campaigns with major primes (Lockheed, Boeing, etc.).
• Track and report KPIs: press pickup, social engagement, thought leadership exposure, qualified leads, and event participation.

Sensing and National Security Lead

Chief Marketing Officer

• Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications.
• **Location:**
• United Kingdom, Oxford or United States, Chicago. This is a full-time position. Work from home permitted up to 2 days per week based on business needs and manager approval.
• **Role Overview:****The Events & Field Marketing MarCom Enabling & Execution Lead will plan, manage, and amplify **Infleqtion’s global event and field presence**. This includes ecosystem engagements, national security forums, investor events, and community programs that build brand visibility and engagement across core markets.

Events & Field Marketing Executive

Full-stack Engineer

• Leadership & Coordination of global software development efforts for quantum sensing products
• Serve as technical lead for the software engineering team, guiding day-to-day operations and development priorities.
• Collaborate with project managers and technical leads to plan and execute development milestones.
• Lead daily stand-up meetings, manage the Jira board, and ensure timely completion of sprint goals.
• Oversee and enforce software engineering best practices, including code reviews, testing standards, documentation, and CI/CD processes.
• Act as the liaison between the software engineering team and the broader multidisciplinary project team.
• Lead development of the frontend application built with React/Next.js, ensuring high performance, maintainability, and scalability.
• Own the backend REST API written in Python (FastAPI), ensuring robust integration with hardware control and middleware layers.
• Contribute to integration with Rust-based middleware and/or driver software used for device control.
• Collaborate with embedded systems engineers to ensure seamless interaction between software and hardware components.
• Participate in architecture discussions and contribute to technical design documentation.
• Support the transition of projects from prototype to production-ready systems.

Senior Software Engineer

Manager

• Oversee day-to-day operations and maintenance of Infleqtion’s UK facilities, including laboratories, offices, and shared spaces.
• Manage building systems and services such as HVAC, security, waste management, utilities, and cleaning contracts.
• Coordinate with landlords, service providers, and contractors to ensure safe and efficient facility operations.
• Develop and manage preventive maintenance schedules and facility asset registers.
• Support office expansion, refurbishment, and relocation projects, ensuring compliance with health and safety standards.
• Oversee procurement of facilities-related supplies, equipment, and external service providers.
• Serve as the primary point of contact for all health, safety, and environmental matters across UK sites.
• Develop, implement, and maintain HSE policies, procedures, and risk assessments, including Health & Safety committee meetings.
• Ensure compliance with the Health and Safety at Work Act 1974, COSHH, PUWER, RIDDOR, and other UK regulations.
• Conduct audits, inspections, and incident investigations, and implement corrective and preventive actions.
• Manage HSE training and induction programmes covering emergency response, manual handling, PPE, laboratory safety, and first aid.
• Maintain statutory records, certifications, and documentation (e.g., fire safety, DSE, PAT testing, and building compliance).
• Oversee fire safety systems, emergency preparedness, and business continuity planning.
• Partner with laboratory and engineering teams to assess and mitigate risks in technical and research environments.
• Act as liaison with external auditors, local authorities, and regulatory bodies to ensure continued compliance.
• Promote a proactive safety culture through employee engagement, communication, and training.
• Collaborate with Infleqtion’s global facilities and operations teams to align standards and share best practices.
• Manage HSE and facilities budgets and report on performance metrics.
• Lead sustainability and environmental initiatives, including energy efficiency, waste reduction, and carbon footprint improvements.

Facilities & HSE Manager

Technical Recruiter

• Partner with business leaders across multiple time zones to define hiring priorities and deliver on high-impact technical searches.
• Develop and execute sourcing strategies for niche and competitive talent pools — from quantum physicists to embedded systems engineers.
• Manage the full recruiting lifecycle: sourcing, outreach, interviewing, negotiation, and onboarding.
• Build trusted partnerships with hiring managers, influencing decisions through market insight and data-driven guidance.
• Champion Infleqtion’s employer brand by showcasing our mission, technology, and people across global markets.
• Provide leadership with regular analytics and hiring metrics to drive strategy and continuous improvement.
• Ensure alignment with employment laws globally.

Senior Technical Recruiter

Administrative Assistant

• Provide comprehensive administrative support to senior executives, including complex calendar, meeting, and communication management.
• Coordinate travel logistics and detailed itineraries for domestic and international trips.
• Prepare expense reports and ensure timely processing.
• Serve as a trusted liaison between executives, employees, and external partners.
• Anticipate needs, manage shifting priorities, and ensure leaders are prepared for meetings and commitments.
• Support the preparation of presentations, reports, and board materials.
• Coordinate logistics for leadership meetings, site visits, and events.
• Maintain confidentiality of highly sensitive information.
• Collaborate closely with other administrative team members to ensure alignment, consistency, and coverage.
• Manage projects and special assignments as needed to support executive initiatives.

Executive Administrative Assistant

Financial Planning and Analysis

• Develop and maintain financial forecasts and budgets for SG&A cost centers, in collaboration with the COO and other cross-organizational department leaders.
• Support monthly and quarterly forecasting processes, identifying key drivers and variances.
• Assist in developing annual operating plans (AOPs) and long-range financial models.
• Forecast and reconcile full-company hiring and labor budget, and reconcile forecast-to-actual differences monthly.
• Run weekly operational cash report, communicating sources and uses of cash for the company on a weekly basis, and comparing cash receipts and disbursements against forecasted cash flows.
• Partner with the COO and business leaders to monitor and analyze operational expenses, headcount trends, and productivity metrics.
• Provide insights into cost efficiency and resource allocation to support strategic decision-making.
• Build and maintain financial dashboards and KPI reports for operational teams.
• Prepare and distribute monthly financial performance reports, highlighting key trends and actionable insights.
• Conduct variance analysis versus budget and forecast, explaining operational and financial drivers.
• Support quarterly board and executive presentations with SG&A financial summaries and commentary.
• Continuously improve processes and controls related to accruals for contract services that roll up through SG&A.
• Serve as the primary FP&A point of contact for the COO and operational leadership team.
• Collaborate with HR, Sales, IT, and other G&A functions to align forecasts with headcount and operating plans.
• Support ad-hoc financial analysis and special projects to evaluate strategic initiatives or operational improvements.

Senior FP&A Analyst – SG&A

Electrical Engineer

• Management of a team responsible for design and delivery of electronics systems throughout the product lifecycle: concept, design, test and verification
• Own the overall system architecture and ensure alignment with requirements and functional needs of the system
• Presenting progress and results to the end customer
• Overseeing and/or contributing to design of subsystems such as analog, mixed signal, microcontrollers and FPGA controllers
• Execution of modelling, simulation, and analytical efforts required to enable product performance
• Integration of electronics subsystems with mechanical, optical, and other subsystems
• Identifying and engaging key suppliers
• Following Infleqtion’s Product Lifecycle Process and supporting Phase gate reviews, critical design reviews, and executive updates
• Supporting development of risk management plans and risk resolution, and supporting reliability analysis and continuous improvement
• Coaching and mentoring junior engineers
• Other duties as assigned or required

Staff Electrical Engineer – Team Lead

Mechanical Engineer

• Work alongside physicists and engineers to capture and interpret mechanical design requirements for optical and ultra-high vacuum systems.
• Use a combination of rapid prototyping and engineering analysis to guide design decisions, communicating findings to project leaders both verbally and through design documentation.
• Create CAD models (SolidWorks), drawings, and documentation packages in accordance with company design guidelines and industry best practice.
• Support research efforts by designing and assembling enclosures, jigs and fixtures using a combination of bought in components and basic machine tools.
• Work with the production team to assemble prototype and first off production systems, documenting feedback on DfM and DfA for future designs.
• Work with external suppliers to identify and procure appropriate custom and off-the-shelf components.

• Execute engineering projects and deliver them on time and budget
• Learn from other engineers to facilitate personal training and professional growth
• Develop analog circuits, including design, schematic capture, PCB layout, prototyping build, test, validation, and troubleshooting
• Design, model, and simulate analog circuits and validate circuit performance through bench testing
• Focus on low noise and low drift circuit design
• Design control loops in the analog and digital domains
• Collaborate with engineers, physicists, and technicians to troubleshoot, debug, and rework existing circuit boards in use
• Perform quality and performance analysis on new and legacy electrical systems
• Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design
• Summarize data and report on test results
• Support a technology demonstration mission with NASA JPL/Goddard to demonstrate a quantum gravity gradient sensor on a dedicated satellite
• Develop high performance, low noise, radiation tolerant and robust circuits for deployed quantum systems and sensors in space, terrestrial, and lab-based environments
• Other duties or projects as assigned to ensure mission success
• Up to 10% local travel may be required

Associate Electrical Engineer, Analog and Mixed-Signal — Quantum Space Systems

• Develop embedded control systems: design, build, integration, test, and qualification for deployed quantum systems and sensors in space, terrestrial, and lab-based environments
• Support a technology demonstration mission with NASA JPL/Goddard for a quantum gravity gradient (QGG) sensor on a dedicated satellite
• Collaborate with electrical engineers, physicists, mechanical engineers, embedded systems engineers, systems engineers, and sub vendors to develop high performance, radiation tolerant, and robust circuits
• Execute engineering projects and deliver them on time and budget
• Troubleshoot and debug existing circuit boards and control systems in use
• Perform quality and performance analysis on new and legacy electrical systems
• Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design
• Summarize data and report on test results
• Provide estimates of resources needed to deliver successful projects on schedule and budget
• Manage and mentor peers and more junior team members to ensure project success
• Communicate with key stakeholders on progress, barriers, and status
• Perform other duties or projects as assigned to ensure mission success
• Up to 10% local travel may be required

Senior Electrical Engineer – Embedded Systems, Quantum in Space

• Manage engineering projects and deliver them on time
• Develop analog circuits, including design, schematic capture, PCB layout, prototyping build, test, validation, and troubleshooting
• Design, model, and simulate analog circuits and validate circuit performance through bench testing
• Preferred focus on low noise and low drift circuit design
• Design control loops in the analog and digital domains
• Collaborate with engineers, physicists, and technicians to troubleshoot, debug, and rework existing circuit boards in use
• Perform quality and performance analysis on new and legacy electrical systems
• Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design
• Manage and mentor peers and more junior team members to ensure project success
• Summarize data and report on test results
• Provide estimates of resources needed to deliver successful projects on schedule and budget
• Communicate with key stakeholders on progress, barriers, and status
• Support a technology demonstration mission with NASA JPL/Goddard to demonstrate a quantum gravity gradient sensor on a dedicated satellite
• Participate in development, integration, test, and qualification of custom circuits and control system subsystems for space, terrestrial, and lab-based quantum systems
• Other duties or projects as assigned to ensure mission success
• Up to 10% local travel may be required

Senior Electrical Engineer – Analog and Mixed-Signal, Quantum in Space

• Infleqtion is poised for significant growth as we prepare for our transition to a publicly traded company. We are seeking a highly accomplished and strategic Director, Financial Reporting to lead our financial reporting function.
• Lead the preparation and filing of all external financial reports, including Form 10-K and Form 10-Q, ensuring accuracy, timeliness, and compliance with all SEC requirements.
• Manage the technical accounting research and implementation of new accounting standards and complex transactions in accordance with U.S. GAAP.
• Direct the month-end, quarter-end, and year-end close processes, providing leadership and guidance to the broader accounting team.
• Serve as the primary point of contact for external auditors, managing the annual audit process and all related requests.
• Oversee and ensure compliance with Sarbanes-Oxley (SOX) internal control requirements.
• Partner with cross-functional teams, including legal, investor relations, and FP&A, to support public company initiatives.
• Drive continuous process improvements to enhance efficiency, accuracy, and control within the financial reporting function.

Director, Financial Reporting

Accounting Manager

• Research, analyze, and conclude on complex accounting issues in accordance with U.S. GAAP and SEC guidance.
• Draft comprehensive technical accounting memos to document the Company’s positions on significant transactions and policies.
• Monitor and lead the implementation of new accounting standards from the FASB and SEC, including developing training materials and updating policies.
• Partner with cross-functional teams to operationalize new accounting treatments and support business initiatives.
• Assist with the preparation and review of financial statements and related disclosures, with a focus on ensuring compliance with SEC reporting requirements.
• Collaborate with external auditors to support the audit process, providing technical analysis and documentation as needed.
• Assist with IPO readiness and SOX 404 compliance initiatives, including documenting internal controls.

Technical Accounting Manager

Accountant

• Infleqtion is a global leader in neutral-atom quantum technology. Prepare journal entries, perform monthly account reconciliations, support the month-end close process, perform financial statement analysis, collaborate to implement new accounting policies, liaise with other departments for accounting guidance, support audit schedules and external auditors, assist in documenting and improving internal controls and SOX compliance, provide ad hoc analysis and support to the accounting and finance team.

Senior Accountant

Engineering Manager

• Manage, develop, build, and lead a team of software developers & DevOps engineers. Mentor and guide direct reports, fostering their growth and enhancing the team's technical expertise
• Develop, communicate, and enforce software development standards and processes
• Maintain a comprehensive understanding of the Infleqtion quantum computing software systems, their operational principles, their requirements, the broad technical stack, etc.; architect and design control system software; hands-on application of deep subject matter expertise in building software systems
• In collaboration with programmatic leadership and adjacent engineering disciplines, develop and execute a technical roadmap for software deliverables across the control stack to support given high-level quantum computing performance targets and system deliverables
• Communicate software feature roadmaps and resource needs between the control software team, adjacent stakeholders, and executive management

Director of Software Engineering

IT Support

• Lead the planning, implementation, and maintenance of enterprise IT infrastructure
• Oversee on-premises and cloud-based systems ensuring reliability, scalability, security, and performance
• Operate with a security-first mindset and perform hands-on systems administration and engineering tasks
• Oversee the design, implementation, management, and maintenance of both on-premise and cloud infrastructure (servers, storage, network infrastructure, etc)
• Manage enterprise backup and disaster recovery solutions
• Ensure high availability and performance of mission-critical systems
• Transform existing solutions and services into streamlined and standardized approaches
• Perform systems administration activities, including management of Active Directory and Microsoft 365 tenants
• Maintain appropriate and regular patch management cycles, system monitoring, and performance optimization tasks
• Maintain robust identity and access management practices
• Manage aspects of general IT security administration, including endpoint protection and monitoring
• Remain up to date and informed of active threats in the cybersecurity landscape
• Respond to and manage security incidents effectively
• Work closely with the IT Service Desk and DevOps teams to ensure seamless delivery of Infleqtion’s IT services
• Identify areas of opportunity and drive the implementation of intuitive solutions that demonstrate measurable improvements
• Regularly review and contribute to meticulous documentation
• May require access to information protected under U.S. export control laws and regulations; work in office and laboratory environment and around technical equipment including computers and lasers; ability to lift and carry up to 40 pounds; use automated office equipment; travel up to 10%

IT Infrastructure Manager

• Infleqtion is seeking a proactive and highly organized Facilities and Safety Manager to oversee daily operations and long-term planning of facilities and lead safety and compliance programs.
• Oversee daily building operations, maintenance, and repair of all facility systems including HVAC, electrical, plumbing, utilities, security, and access control platforms.
• Coordinate and supervise external contractors and vendors for facility-related projects, services, and routine/preventative and emergency maintenance programs.
• Plan and manage facility expansions, renovations, and reconfigurations, working closely with production and engineering teams.
• Ensure facilities meet applicable building codes, environmental regulations, and local ordinances.
• Manage facility budgets, track expenses, and forecast operational needs.
• Prioritize, track, and resolve Facilities related support tickets in management portals.
• Develop, implement, and enforce workplace health, safety, and emergency response programs.
• Conduct safety audits, inspections, and drills to ensure compliance with OSHA and local regulations.
• Serve as primary point of contact for workplace safety initiatives and regulatory compliance.
• Lead incident investigations, root cause analysis, and ensure proper reporting of safety incidents and near misses.
• Develop and deliver safety training programs including first aid and CPR, fire safety, hazardous materials handling, and emergency action plans.
• Maintain accurate safety records including training logs, inspection reports, and incident documentation.
• Promote a strong safety culture and encourage employee involvement and continuous improvement.
• Negotiate, manage, and monitor contracts with facility service providers including maintenance, cleaning, security, and construction vendors.
• Foster relationships with landlords, property managers, and external partners.
• Collaborate cross-functionally with HR, IT, and Operations to support business continuity and employee needs.
• This position may require access to information protected under U.S. export control laws (EAR and ITAR); offer may be conditioned on authorization to receive controlled software/technology without sponsorship for an export license.
• Work performed in office and lab environment around technical equipment including computers and lasers; able to sit, stand, bend, lift up to 40 pounds; efficient use of office equipment; PPE provided and required.

Facilities and Safety Manager

• Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward.
• At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation:
• We break down barriers between disciplines, stepping in wherever we can make the biggest impact.
• We thrive in uncertainty, embracing challenges as opportunities.
• We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail.
• We take bold, calculated risks to drive progress.
• We are seeking a Software Technical Lead to join the team building the control system software for Infleqtion’s quantum computers as both an individual contributor and manager for a handful of other engineers on the team. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications who also has an interest in people management to help their team-mates achieve their potential. You will play a crucial leadership role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum processors.
• JOB RESPONSIBILITIES
• The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time.
• Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers.
• Mentor and guide software engineers as direct reports, fostering their growth and enhancing the team's technical expertise.
• Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration.
• Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions.
• Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices.
• Support and debug all layers of the control stack from real-time embedded kernels to distributed services.
• Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality.

Technical Lead – Software

DevOps Engineer

• Design, implement, and manage robust networks, including configuring switches and managing network-connected devices.
• Manage Docker containers and orchestrate CI/CD pipelines for efficient software deployment and updates.
• Design, develop, and maintain IaC solutions and implement CI/CD pipelines to automate deployment processes.
• Collaborate with both software developers and hardware engineers in a lab environment, documenting processes and system configurations for ongoing projects.
• Working with a variety of users and software engineers to implement and develop standard operating procedures for software deployments and system parameter updates.
• Integrating complex systems that include embedded boards, computer systems, and hardware interfaces. Coordinate these components to ensure the system is consistently operational and optimised.
• 'System-down' planning and response. Own system management and coordinate response to efficiently maintain high up-times. Plan and implement system backup policies to ensure swift recovery.