Infleqtion is dedicated to advancing atom-based quantum technologies, aiming for significant enhancements in sensing and computing applications. We are on the lookout for driven, enthusiastic individuals with outstanding problem-solving and technical capabilities to propel our Quantum Computing initiatives forward.At Infleqtion, we foster a startup culture characterized by a focus on results, urgency, and customer-centric innovation:We dismantle silos across disciplines, stepping in wherever we can maximize impact.We flourish in uncertain environments, viewing challenges as chances for growth.We prioritize swift prototyping while maintaining a keen awareness of the critical nature of systems engineering processes and meticulous attention to detail.We embrace bold, calculated risks to foster advancement.Infleqtion is in search of a DevOps / Platform Engineer to assist our teams in developing the control system software for Infleqtion’s quantum computers. This role will closely collaborate with software engineers, embedded systems engineers, and physicists to expedite technology development by constructing and maintaining the infrastructure, automation, and tools that support our systems.This position is highly technical and hands-on, focused on state-of-the-art quantum computing systems, where requirements may change rapidly and the optimal solution is not always immediately apparent. You will operate in an environment that integrates on-premises infrastructure, laboratory and scientific equipment, embedded systems, and production software, often concurrently.We seek engineers who are adept at navigating uncertainty, enjoy tackling tangible problems, and can evolve systems from initial concepts into robust, production-ready platforms over time. We welcome candidates from various experience levels; strong foundational knowledge, curiosity, and the ability to learn swiftly are more important than having an exhaustive skill set.

About the RoleColdQuanta is a global frontrunner in the realm of quantum sensing and computing technologies. Our operations span worldwide, backed by a robust technical leadership team that thrives on collaboration and a steadfast commitment to achieving impactful results.The Director of Internal Audit will play a pivotal role in establishing and overseeing an independent, risk-based internal audit function at our public company. This position will deliver objective assurance and advisory services to the Audit Committee and executive management, focusing on the effectiveness of internal controls, risk management, governance procedures, and compliance with regulatory standards, including Sarbanes-Oxley (SOX).In this capacity, the Director will design and implement the annual audit plan, supervise SOX compliance efforts, collaborate with external auditors, and communicate audit findings and risk insights to senior leadership and the Audit Committee.Key ResponsibilitiesGovernance & Audit Committee SupportFunctionally report to the Audit Committee, ensuring regular communication, including executive sessions.Prepare and present various documents, including:Internal Audit CharterAnnual risk assessment and audit planAudit outcomes, key findings, and remediation progressAssist the Audit Committee in fulfilling its oversight responsibilities concerning risk management, internal controls, and compliance.Internal Audit LeadershipEstablish and maintain a risk-based internal audit program in alignment with COSO Internal Control and ERM frameworks.Develop and execute the annual internal audit plan addressing:Financial reporting and SOX 404 complianceOperational and strategic risksCompliance and regulatory risksIT and cybersecurity risksEnsure independence, objectivity, and adherence to professional standards (IIA Standards) within the internal audit function.SOX & Financial ControlsLead internal audit initiatives related to SOX 404 ICFR, including:Risk assessmentsControl design and effectiveness testingEvaluation of deficiencies and remediation effortsCoordinate SOX activities with:ManagementExternal auditorsCo-sourced audit providersStay abreast of changes in accounting standards, SEC requirements, and internal control expectations.

ORGANIZATIONRocky Mountain Prep (RMP) is an innovative and mission-driven public charter school network that provides a rich educational experience for over 5,100 students from early childhood through 12th grade, operating across 12 schools in the Denver metropolitan area. Born from the recent merger of two cherished local networks, RMP and STRIVE Prep in 2023, we are proud to stand as one of Denver’s only unified ECE–12 public charter systems, merging two powerful legacies into a single vibrant and forward-thinking community.Our mission is to empower every student to achieve their fullest potential through a rigorous, nurturing, and transformative academic experience. We emphasize joy and challenge in equal measure and are fiercely committed to a college-preparatory curriculum—equipping all scholars not only to succeed in college but to flourish as compassionate and courageous changemakers in their communities and beyond.Guided by our PEAK values—Perseverance, Excellence, Adventure, and Kindness—we strive for excellence without ego, love with high expectations, and leadership rooted in equity and curiosity. With an annual budget of $100M and a dedicated team of over 600 educators and staff, RMP is setting new standards for public education in Denver.Discover more at www.rockymountainprep.orgTHE OPPORTUNITYRocky Mountain Prep is on the lookout for a dynamic, visionary, and deeply human-centered Chief Academic & Schools Officer (CASO) to spearhead our academic strategy, enhance school performance, and ensure instructional coherence across our ECE–12 network. Reporting directly to the CEO and serving as an integral member of the executive leadership team, the CASO will be the strategic and operational force behind academic excellence at RMP—crafting, evolving, and aligning our instructional systems to achieve transformational outcomes for all students.This moment is pivotal for RMP. Three years post-merger, we are realigning our academic and school leadership models to guarantee that every classroom—be it in our early childhood centers, elementary, middle, or high schools—delivers a cohesive, high-quality academic experience infused with rigor, love, and contextual relevance. Our CASO will advocate for vertical alignment across schools while appreciating the distinctive strengths and needs of each campus.We are in search of a systems-thinking leader capable of merging academics and school management, focusing on the intricacies of curriculum implementation and instructional planning while ensuring that each school embodies the essence of RMP, delivering results tailored to their unique context. This is a rare opportunity to build, scale, and innovate within a deeply collaborative and equity-driven environment.

Infleqtion is dedicated to pioneering atom-based quantum technologies aimed at significantly enhancing capabilities in sensing and computing. We are looking for dynamic, self-driven individuals with outstanding problem-solving abilities and technical expertise to propel our Quantum Computing initiatives.At Infleqtion, we foster a startup culture focused on results, speed, and customer-centric innovation:We dismantle silos across disciplines, contributing wherever we can maximize our impact.We flourish in ambiguity, viewing challenges as opportunities for growth.We prioritize rapid prototyping while maintaining a strong commitment to systems engineering processes and meticulous attention to detail.We embrace bold, calculated risks to advance our mission.We are in search of a Director of Software Engineering to oversee the development of control system software for Infleqtion’s quantum computing platforms. The ideal candidate will possess extensive experience in designing and deploying robust, scalable software services and a track record of leading software teams in this domain. Your strategic vision will guide our innovation, establishing the technical roadmap and architectural foundation for our software systems.

ABOUT ROCKY MOUNTAIN PREPRocky Mountain Prep (RMP) is an inspiring and values-centered public charter school network dedicated to the education of over 5,000 students from early childhood to 12th grade across 12 campuses in the Denver metro area. Following the successful 2023 merger of two esteemed local networks—RMP and STRIVE Prep—RMP stands out as one of Denver's premier unified ECE–12 public charter systems, fostering one of the most vibrant educational communities in the region.Our mission is to empower every student to unlock their full potential through a rigorous, nurturing, and transformative academic environment. We believe in balancing joy with challenge, and we are wholeheartedly committed to being college-preparatory—equipping all our scholars not only for success in higher education but also to flourish as compassionate and courageous leaders in their communities and beyond.At RMP, our core values—Perseverance, Excellence, Adventure, and Kindness—shape everything we undertake. We embrace high expectations grounded in genuine care, academic excellence paired with equity, and innovation coupled with discipline. With an annual budget nearing $100 million and a dedicated team of over 600 exceptional educators and staff, RMP is pioneering new possibilities for public education in Denver.For more information, visit www.rockymountainprep.org.THE OPPORTUNITYRocky Mountain Prep is at a pivotal moment in its evolution. With a cohesive ECE–12 model, deep community engagement, and a steadfast commitment to academic excellence, RMP is uniquely positioned to usher in a new era of educational opportunity and impact in Denver. The next Chief Executive Officer (CEO) will leverage this momentum—aligning vision, personnel, and systems to guarantee that every scholar experiences the transformative power of an RMP education. This leader will distill clarity from complexity, unify diverse teams towards common objectives, and continue to invigorate the organization with focus, optimism, and purpose.To cultivate pioneering, exemplary, adventurous, and kind learners and leaders, the incoming CEO will possess an unwavering belief in the potential of all students to excel. They will be a passionate advocate for academic quality across all campuses, ensuring that instruction is not only rigorous but also joyful and excellent. Collaborating closely with a robust executive team, this leader will drive sustained improvements while operating strategically to empower and develop a senior leadership team reflective of the aspirations of a unified ECE–12 network.The CEO will enhance organizational health, foster trust among staff and families, and bring unity and clarity to a network in the process of finalizing its merger—integrating RMP into one flourishing, mission-driven community. In the pursuit of cultivating a more anti-racist organization, the ideal candidate will lead with profound cultural competence and a commitment to equity.

About the RoleJoin ColdQuanta as a proactive Director of Corporate Communications, where you'll take charge of shaping our corporate narrative and enhancing our visibility in the media landscape. In this pivotal role, you will develop and implement strategic communication initiatives, craft compelling messaging, and engage with both business and trade media to bolster our reputation and support our organizational goals. This is a high-impact position within a dynamic senior team that is driven by ambitious objectives. You will be the primary lead for corporate communications, collaborating closely with various departments across the organization.Key ResponsibilitiesCorporate Messaging and Narrative DevelopmentOversee the creation and management of our corporate messaging, articulating our narrative, key messaging pillars, proof points, and differentiators tailored for specific audiences including media, customers, partners, and analysts.Establish a scalable messaging architecture, encompassing a master narrative, compelling storylines, and frequently asked questions (FAQs).Translate intricate technical and business concepts into accessible, engaging stories for non-technical audiences.Develop and maintain essential communication assets such as boilerplates, company overviews, executive biographies, media kits, key presentation slides, and briefing documents.Media Strategy and Earned Media CoverageCreate and implement an earned media strategy targeting business and trade outlets, prioritizing storylines, targets, and timelines in collaboration with our public relations agency.Facilitate agency pitching by providing clear narrative direction, proof points, access to spokespeople, and timely materials, while also undertaking select direct pitching for high-priority opportunities.Handle inbound media inquiries, coordinate interviews, and manage rapid responses during breaking news situations, ensuring our agency has the resources needed for swift and accurate action.Draft and distribute press releases, media statements, Q&As, and briefing documents with a focus on speed and precision; review and refine agency drafts to uphold quality and messaging standards.Proactively generate story ideas beyond product launches, including trend perspectives, partner/customer narratives, and evidence-based angles to provide the agency with a consistent flow of well-crafted story hooks.Executive Visibility and Thought Leadership InitiativesLead the executive visibility program, identifying speaking opportunities, bylines, podcasts, awards, and significant industry events.Prepare speaker submissions and supporting materials, ensuring executives are well-prepared with disciplined messaging and effective rehearsal.Integrated Launches and Cross-Functional CollaborationDirect communications planning for key announcements and organizational milestones.Manage relationships with PR agencies and external vendors as necessary, providing clear briefs, maintaining high standards, and assessing outcomes.Internal CommunicationsOversee internal communications, ensuring alignment with corporate messaging and fostering a cohesive organizational culture.

ORGANIZATIONAdvance Health. Empower Youth. Strengthen Communities.At YMCA of the East Bay, our mission drives us to create a positive impact in the community every day. We are a vibrant community hub where individuals of all ages and backgrounds can engage in activities such as swimming, camping, exercising, volunteering, and making a difference in their neighborhoods. Serving over 68,000 residents across Alameda, Contra Costa, and Yolo counties, we envision a future where every child has access to learning opportunities, teens can thrive, and communities remain strong and healthy. Join us in building a better tomorrow!Discover more about us at www.ymcaeastbay.org.POSITION SUMMARYThe Human Resources Director plays a vital role in aligning with the Mission, Goals, and Values of the YMCA of the East Bay by steering key HR functions. This position partners with leadership across the Association, ensuring the implementation of consistent practices aligned with our mission in areas like employee relations, payroll, compensation, compliance, training and development, performance management, talent acquisition, and HR systems oversight.The Director will oversee the daily operations of the HR department, may supervise HR Generalists, Payroll Managers, and other HR personnel, and will ensure the effective execution of HR programs while contributing to the long-term strategic goals set forth by the Chief Human Resources Officer (CHRO).ESSENTIAL FUNCTIONSKey Responsibilities include:People & Culture LeadershipAct as a trusted advisor to Association leaders regarding employee relations, performance management, policy interpretation, and workplace issues.Conduct prompt, impartial, and well-documented employee relations investigations.Support culture initiatives aimed at enhancing employee engagement, inclusion, and workforce development across the Association.HR Operations & SystemsOversee HRIS and Payroll Systems, ensuring data accuracy, integrity, and optimization from a functional HR perspective.Manage compliance programs in accordance with federal, state, and local labor laws.Supervise unemployment, workers' compensation, and leave administration processes.Develop, revise, and maintain HR policies, procedures, handbooks, and documentation.Stay informed on employment laws and collaborate with the CHRO to uphold an effective compliance program, ensuring timely submissions of data required by EEOC, YMCA of the USA, Department of Labor, etc.Talent Acquisition & DevelopmentCollaborate with Operations leadership to identify staffing needs and implement effective recruitment strategies.Advocate for employee professional development through training programs and performance management systems.

Join Our Innovative Team at InfleqtionInfleqtion, a pioneering global quantum technology firm, is dedicated to addressing the most formidable challenges of our time. By leveraging the principles of quantum mechanics, we design and integrate state-of-the-art quantum computers, sensors, and networks. Our commitment to advancing quantum technologies facilitates a vision of 'quantum everywhere' through an ecosystem of transformative devices and platforms. Our mission is to revolutionize atom-based quantum products, delivering unparalleled enhancements in performance and computing capabilities.About the RoleWe are currently seeking a passionate and skilled FPGA & DSP Engineer to join our dynamic team in Kidlington, Oxford. This full-time position comes with the flexibility to work remotely for up to two days a week as needed. You will play a crucial role in the design, implementation, and management of atom-based quantum technologies, focusing primarily on quantum RF sensors, inertial navigation systems, and atomic clocks. If you are enthusiastic about pushing the boundaries of quantum technology and eager to apply your expertise in a collaborative environment, we encourage you to apply.Key ResponsibilitiesCollaborate with a multidisciplinary team to develop cutting-edge atom-based quantum technologies, particularly in quantum RF sensors and atomic clocks.Design and engineer electronic solutions for controlling subsystems such as laser drivers, optical frequency combs, amplifiers, photodetectors, thermal sensors, and RF signal chains.Implement real-time digital signal processing (DSP) algorithms on high-speed signals using FPGA technology, including FIR/IIR filters and I/Q frequency mixers.Develop automated test benches to validate and verify designs.Debug complex embedded systems that encompass hardware, software, and firmware components.Create high-speed interfaces connecting FPGA to hardware peripherals like ADCs, DACs, and DDS.Implement high-speed feedback control systems (PID and similar) on FPGA.Work closely with software, electronics, and systems engineers to design new FPGA-based peripherals.

At Infleqtion, we are leading the charge in the rapidly advancing quantum systems sector, pioneering the commercialization of Quantum Systems utilizing Neutral Atoms, which serve as nature's optimal sensors and qubits. This thrilling domain is on the brink of revolutionary breakthroughs, and we are at the helm of innovative projects such as our Optical Atomic Clock product, ‘Tiqker,’ the Quantum Computing system, ‘Sqale,’ and sophisticated Quantum-RF and Quantum-Inertial sensing systems.Our upcoming quantum innovations will rely heavily on CMOS foundry-based Silicon Photonics PICs, which promise miniaturization, high-volume low-cost manufacturing, reliability, and robustness. These PIC-based devices and systems are set to transform the industry by replacing the cumbersome and costly lab-quality laser systems, precise frequency control, and atom-addressing techniques currently employed in quantum systems. To fulfill this critical need, we are expanding our integrated photonics team and are in search of experienced engineers with practical expertise in designing and testing Silicon Photonics PIC-based lasers and laser system components. Join us in redefining the landscape of quantum technology and developing products that will change the world.We are looking for an outstanding candidate with extensive experience in integrated photonics technologies, devices, and applications. This individual will be instrumental as a founding member of our integrated photonics team at Infleqtion, collaborating closely with various quantum systems teams to pinpoint PIC opportunities and create PIC-based devices for prototype quantum systems. Furthermore, the team will work alongside suppliers and manufacturing partners to ensure the provision of qualified PIC-based devices for Infleqtion's products.Key Responsibilities:Collaborate with Quantum Systems teams on Integrated Photonics opportunitiesDesign photonic components (lasers, modulators, passive devices, etc.)Design and layout Silicon Photonics PICsWork with foundry partners for PIC fabricationCollaborate with III-V Gain Chip suppliers for gain elementsPartner with packaging companies to integrate gain and package devicesConduct lab testing of PIC-based devices, including both hands-on and automated testingCharacterize lasers, including DC measurements, frequency noise (FN), and relative intensity noise (RIN)Characterize modulated laser systems, measuring high-speed waveforms, and developing measurement setupsEvaluate micro-combs and PIC-based devices for miniature frequency combsAssess PIC-based approaches for addressing atoms in quantum systems

Infleqtion is a pioneering global leader in quantum technology, dedicated to addressing the world's most pressing challenges. By leveraging the principles of quantum mechanics, we create and integrate advanced quantum computers, sensors, and networks. Our extensive ecosystem of devices and platforms facilitates the mission of enabling 'quantum everywhere'. We strive to commercialize atom-based quantum products that deliver unprecedented enhancements in performance and computing applications.LocationThis is a full-time position based in our Kidlington, Oxford office, with the flexibility to work from home up to 2 days a week, contingent upon business needs and managerial approval.Job SummaryWe are seeking a dynamic IT Manager for Infleqtion UK who will be responsible for the strategic planning, organization, management, and coordination of IT services and functions within our UK operations. The ideal candidate will ensure the optimal functioning of internal IT systems and infrastructure, aligning with the overall objectives and growth of the organization.Key ResponsibilitiesFormulate, execute, and oversee IT strategies that are in line with the company’s business goals.Manage the design, development, implementation, and daily maintenance of IT systems and infrastructure.Lead a team of IT professionals through effective recruitment, management, guidance, training, and performance assessments.Implement best practices for security and management of all on-premise and cloud-based systems, data, and networks.Prepare budget forecasts to aid executives in planning, organizing, and scheduling work.Negotiate and manage contracts with vendors and suppliers for development platforms, telecommunications services, hardware, and software licenses.Install, configure, and oversee both wired and wireless network architectures.Provide training to team members on network security protocols and best practices for computer usage.Contribute to the ongoing documentation of policies, processes, and procedures.

Infleqtion is at the forefront of quantum technology, dedicated to tackling some of the world’s most complex challenges. By leveraging the principles of quantum mechanics, we design and integrate cutting-edge quantum computers, sensors, and networks. Our mission is to enable a future where quantum technology is ubiquitous, offering innovative solutions that span from foundational physics to advanced commercial products. We are currently seeking a passionate Mixed Signals Electronics Engineer to join our dynamic team.LOCATIONThis is a full-time position based in our Kidlington, Oxford office and the National Quantum Computing Centre in Harwell. We offer flexible work-from-home options for up to 2 days per week, subject to managerial approval and business needs.JOB SUMMARYAs a Mixed Signals Electronics Engineer at Infleqtion UK, you will collaborate with a multi-disciplinary team to transition state-of-the-art quantum technologies from the lab to real-world applications. Your expertise will be essential in designing, verifying, and implementing electronic systems and subsystems that drive our innovative quantum products forward. A solid foundation in mixed-signal and analogue electronics is crucial for this role.JOB RESPONSIBILITIESDesign and develop mixed signal electronics systems that effectively integrate digital and analogue components.Translate functional requirements into practical PCBA implementations.Conduct modelling, simulation, and analytical calculations to ensure system stability and performance.Perform PCB design and layout with a keen focus on signal integrity and optimal routing.Create manufacturing files and necessary documentation for PCB fabrication.Assemble prototypes and PCBAs, and troubleshoot issues as they arise.Develop and execute testing protocols to ensure designs meet performance specifications.Work closely with various engineering disciplines to integrate mixed-signal solutions into larger systems.Assist in identifying and engaging suppliers for component sourcing.

Join ColdQuanta as a distinguished Business Development Executive, focusing on propelling strategic advancements within the National Security sector. This pivotal role is centered on cultivating expansive, multi-year initiatives within the Department of War (DoW) and the wider U.S. defense and intelligence landscape.Your mission will be to introduce innovative quantum sensing and computing solutions to America’s warfighters, enhancing capabilities in contested environments, denied/degraded PNT situations, advanced ISR operations, space missions, and other vital national defense objectives.This is a unique chance to influence the trajectory of quantum-enabled national security directly, collaborating with program offices, research laboratories, FFRDCs, Defense Primes, and key decision-makers in both the DoW and Intelligence Communities.Key ResponsibilitiesAs a vital member of our go-to-market team, you will engage with and expand our government sector accounts:Utilize your profound knowledge of DoW and IC funding priorities to identify, cultivate, and pursue high-value opportunities aligned with ColdQuanta's technologies and solutions.Engage with government stakeholders, including Program Acquisition Executives (PAEs), Program Executive Offices (PEOs), procurement officers, OTA consortia, S&T/RDT&E directorates, and Combatant Commands, to assess mission requirements and shape acquisition strategies.Develop and maintain a strong pipeline through meticulous account planning, opportunity qualification, and aligning ColdQuanta's capabilities with operational needs.Collaborate closely with ColdQuanta’s capture, execution teams, subject matter experts, marketing, government affairs, and contracts teams to drive opportunities to successful closure.Establish and nurture long-term relationships across key DoW organizations, including service labs such as ARL, NRL, AFRL, and senior military and civilian leaders.Leverage existing relationships and forge new ones to work with Defense Prime partners on capture strategies and integration approaches to position ColdQuanta’s technologies within large platform and mission-system programs.Represent ColdQuanta at industry events, demonstrations, conferences, and other forums, articulating the value and operational significance of our technology.Maintain accurate pipeline management, forecasting, and reporting to aid corporate planning and revenue execution.

Join Our Innovative TeamAt ColdQuanta, we are at the forefront of commercializing quantum technology, transforming ambitious ideas into deployable systems where photonics drives performance, scalability, and reliability. Our dedicated photonics team specializes in the development of integrated photonics circuits (PICs) and advanced optical subsystems, paving the way for chip-scale laser sources, modulation, routing, and control that support the next generation of quantum products. We collaborate closely with quantum systems teams and external partners to ensure that our optical performance targets translate into manufacturable hardware.Your RoleWe are looking for a Senior Photonics Design, Layout & Modeling Engineer who will take charge of designing and delivering cutting-edge photonic integrated circuits and subassemblies. This role emphasizes simulation-driven design, meticulous layout verification, and rapid experimental feedback, allowing for an agile development process.As a key contributor, you will manage aspects of PIC design from concept to tapeout and testing. This includes translating system requirements into photonic components (such as passives, couplers, resonators, filters, modulators), executing rigorous electromagnetic/photonic modeling, and collaborating with our lab team to characterize devices and implement iterative improvements.If you are a motivated individual who excels in a dynamic and sometimes ambiguous environment and has a passion for solving complex problems that lead to impactful technological advancements, we want to hear from you!Key ResponsibilitiesLead the design and delivery of high-performance photonic components and PIC layouts that meet stringent specifications (loss, bandwidth, phase stability, power handling, crosstalk, yield).Develop simulation-to-layout workflows that expedite design cycles (including PDK integration, reusable parameterized cells, and verification automation).Ensure tapeout readiness through effective coordination and alignment with foundry partners, mask submission requirements, and post-tapeout debugging.Collaborate with lab teams to define test plans, analyze data, troubleshoot discrepancies, and translate measurements into actionable design enhancements.Engage with cross-functional teams to ensure that PIC-level design choices align with system-level performance, reliability, and manufacturability objectives.

Join Our Innovative TeamAt Infleqtion, we are at the forefront of commercializing quantum technology, creating deployable systems where photonics drives performance, scalability, and reliability. Our dedicated photonics team specializes in the development of photonic integrated circuits (PICs) and related optical subsystems that facilitate chip-scale laser sources, modulation, routing, and control for next-generation quantum advancements. We closely collaborate with quantum systems teams as well as external foundry and assembly partners to transform ambitious optical performance goals into manufacturable hardware.Your RoleWe are seeking a Senior Laser & Nonlinear Photonics Engineer to spearhead and execute system-level photonics experiments, particularly focused on laser sources and nonlinear optics modules (such as frequency conversion, parametric processes, and comb generation), and their integration into larger photonic and quantum subsystems.In this position, you will assume full responsibility for experimental development, covering architecture trades, optical design, hands-on assembly, stabilization/control, measurement automation, performance characterization, and iterative refinement towards reliable prototypes.We are looking for a highly motivated individual who excels in uncertain environments, enjoys being part of a small, dynamic team, and is passionate about tackling challenging problems that lead to significant technological breakthroughs.Your ImpactDesign, construct, and validate laser and nonlinear photonics subsystems that adhere to rigorous specifications including linewidth, frequency noise, RIN, power, stability, efficiency, size, weight, and reliability.Conduct system-level experiments including optical bench setups, fiber-based architectures, free-space coupling, high-speed modulation, and precision frequency control.Implement stabilization and control measures such as frequency locks, servo designs, modulation/demodulation strategies, and long-term drift mitigation.Establish robust measurement workflows encompassing automation, calibration, and data analysis to expedite iteration and enhance reproducibility.Translate experimental insights into engineering specifications for packaging, manufacturability, and productization; engage closely with PIC designers, electronics teams, packaging, and manufacturing partners.

Infleqtion is a pioneering global leader in quantum technology, dedicated to addressing the world's most pressing challenges. Our company utilizes the principles of quantum mechanics to design and integrate advanced quantum computers, sensors, and networks. From groundbreaking research to cutting-edge commercial solutions, Infleqtion is committed to making "quantum everywhere" a reality through our innovative ecosystem of devices and platforms.LOCATIONInfleqtion operates offices across the USA, United Kingdom, and Australia. This full-time position is located at our Kidlington, Oxford office, with the flexibility to work from home up to two days a week, depending on business requirements and managerial approval.POSITION SUMMARYThe Portfolio Technical Lead (PTL) holds a critical strategic position within Infleqtion's leadership team, collaborating with other executives to determine which technologies and prototypes transition from research into market-ready products. This role involves managing the atomic clock technical team to ensure outstanding R&D outcomes and being a key player in transforming our technology into viable products. Key responsibilities include overseeing a technical performance portfolio of projects, ensuring deliverables meet or exceed commitments, initiating and managing internal research efforts, leading technical personnel, and developing roadmaps that align technical capabilities with business objectives. JOB RESPONSIBILITIESProject SupervisionOversee and unify the technical performance of a portfolio of atomic clock projects into a well-defined roadmap of capabilities.Establish performance thresholds and expectations for project success, engaging with both internal and external stakeholders to ensure feasibility of desired outcomes.Build and maintain relationships with funding agencies and transition partners to enhance the portfolio’s contract R&D pipeline.Coordinate with Project Managers to ensure cohesive project and portfolio success.Compile and present technical status updates, milestone reports, and design reviews to stakeholders.Implement safety standards and protocols to ensure the protection of personnel and equipment within laboratory environments.Identify and recommend contractual pursuits that align with the technical roadmap, in collaboration with the business development team.Evaluate and recommend technologies and prototypes for further development and commercialization.Pursue strategic intellectual property and patent opportunities.Guide the timely development of proposals and updates by closely collaborating with programmatic teams to outline work breakdown structures.

Infleqtion is a pioneering global leader in quantum technology, committed to tackling the world's most complex challenges. By leveraging the principles of quantum mechanics, we design and integrate advanced quantum computers, sensors, and networks. From fundamental physics to cutting-edge commercial applications, Infleqtion is dedicated to making quantum technology ubiquitous through our extensive ecosystem of devices and platforms.Location:Infleqtion operates from multiple office locations, including Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This role is full-time and hybrid, primarily based in our Louisville, CO office.Position Overview:We are on the lookout for a highly skilled Principal Thermal Engineer to join our team. In this critical role, you will ensure that our sensor head and electronics maintain optimal temperature limits during physics sequences that enable quantum sensing operations in space.The position requires close collaboration with our key customers, internal management, researchers, systems engineers, aerospace specialists, manufacturing partners, suppliers, and subcontractors. You will play an integral role in engaging with customers and partners throughout the program lifecycle, ensuring timely delivery against milestones and commitments, while aligning with Infleqtion’s rigorous internal product lifecycle and quality standards. This role will require you to drive technical alignment across hardware, software, systems, and mission domains.Travel Requirements:Up to 10% travel may be required to support off-site testing, deliveries, and integration activities.Key Responsibilities:Enhance the existing system-level thermal model to ensure operations remain within space environmental constraints.Facilitate regular technical discussions and model reviews focusing on both in-house and subcontractor electronic card and enclosure cooling designs, addressing unique thermal requirements.Design and test thermal solutions for microgravity environments.Modify flight thermal designs for microgravity testing.Act as a hands-on engineer with practical experience in constructing both Engineering Development Units (EDU) and flight hardware.Install Multi-Layer Insulation (MLI) and bond heaters and thermistors using ASTM-E595 compliant materials.Report progress and results effectively to stakeholders.

Infleqtion stands at the forefront of the quantum technology revolution, addressing some of the most pressing challenges faced globally. By leveraging quantum mechanics, we design and integrate cutting-edge quantum computers, sensors, and networks. With a commitment to making quantum technology accessible across various applications, Infleqtion is dedicated to enabling 'quantum everywhere' through our innovative ecosystem of devices and platforms. Our mission focuses on commercializing atom-based quantum products that deliver unprecedented enhancements in performance and computational capabilities.Location:This full-time position can be based in the United Kingdom, specifically Oxford, or in the United States, particularly Chicago. Remote work is permitted for up to 2 days a week, subject to business needs and managerial approval.The Sensing and National Security MarCom Audience & Product Lead will establish Infleqtion as the preferred partner for quantum technology solutions within national security sectors in the UK, U.S., and Australia. In this role, you will be responsible for shaping audience engagement and messaging strategies, as well as executing integrated marketing campaigns that enhance Infleqtion's profile among defense, intelligence, and government stakeholders.

At Infleqtion, we are dedicated to revolutionizing the commercial landscape through the advancement of atom-based quantum technologies, aiming for significant enhancements in sensing and computing applications. We are currently on the lookout for highly motivated, energetic individuals with exceptional operational skills to propel our Quantum Computing mission forward.Embracing a startup mentality, we prioritize results, urgency, and customer-focused innovation:We dismantle barriers across disciplines, stepping in wherever our contributions can yield the greatest impact.We flourish in uncertainty and view challenges as opportunities for growth.We act swiftly to prototype while maintaining a strong focus on the systems engineering process and meticulous attention to detail.We take bold, calculated risks to foster progress.We are in search of a Project Coordinator to support project operations and drive the execution of Infleqtion’s quantum computing roadmap. The ideal candidate will exhibit strong operational discipline, a desire to learn and innovate processes, and a commitment to assisting teammates by managing operational tasks effectively. With you on board, nothing will slip through the cracks!Key Responsibilities:The responsibilities outlined below encompass essential functions of the role. Depending on business needs, this role may involve a combination of some or all of the following duties:Operational & Facilities Support: Coordinate and execute daily operational tasks including light equipment maintenance (e.g., UPS batteries, monitors), adherence to materials inventory procedures, order pickup and distribution, and serving as a liaison among shipping & receiving, IT, vendors, and engineering/R&D teams.Project & Proposal Support: Assist in proposal development, including the formulation of statements of work and budget estimation. Once projects are awarded, support technical leads in execution, including tracking deliverables, schedules, budgets, inventory management, purchasing, subcontractor communications, and progress reporting. Collaborate with technical leaders to ensure resource alignment with technical objectives and manage execution practices, including tracking risks, tasks, dependencies, and deliverables.Operational Communications: Act as the primary internal contact between Quantum Computing R&D/Engineering/Program Management and company stakeholders in finance, facilities, marketing, and legal.

Infleqtion is dedicated to pioneering the commercialization of atom-based quantum technologies, achieving unprecedented advancements in sensing and computing applications. As a dynamic deep-tech startup, we prioritize results, agility, and customer satisfaction in our innovative efforts. We are on the lookout for motivated, energetic individuals with outstanding problem-solving abilities and technical expertise to propel our Quantum Computing mission forward. We invite experimental physicists with a strong background in Atomic, Molecular, and Optical (AMO) physics, especially those experienced in the coherent control of quantum systems such as ultracold atoms, trapped ions, and diamond NV centers, to apply.Key ResponsibilitiesDesign, construct, calibrate, and maintain Quantum Computers utilizing neutral atoms.Lead and participate in Research and Development projects focusing on laser systems, Quantum Processing Units, quantum gate protocols, and more for Quantum Computers.Develop, test, and validate mathematical models to describe atomic physics behavior, translating high-level system requirements into specific engineering subsystems.Independently initiate and execute R&D activities, gathering requirements from stakeholders, defining solutions, and managing project execution within defined constraints.Create, test, execute, and troubleshoot software to facilitate experiments and system optimization in production.Design, assemble, and evaluate laser and optical systems.Oversee subsystems to ensure high availability and performance standards.Mentor junior team members and supervise interns.