Senior Integrated Photonics Design, Layout & Modeling Engineer

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 quantum technology company dedicated to addressing some of the most pressing challenges faced by our world today. By leveraging the principles of quantum mechanics, we design and develop advanced quantum computers, sensors, and networks. Our mission is to enable a future where quantum technology is seamlessly integrated into everyday applications through a comprehensive ecosystem of innovative devices and platforms.POSITION SUMMARYWe are on the lookout for a Senior Test Engineer to play a crucial role in the development and validation of our atomic clock product pilot line. As part of the New Product Introduction Team, you will collaborate with cross-functional teams in hardware, software, and R&D to formulate and execute testing strategies, configure and connect test equipment, and automate testing processes for the pilot line. The ideal candidate will possess hands-on experience in test automation, scripting, hardware validation, and embedded systems testing within a Linux environment.JOB RESPONSIBILITIESCraft, refine, and implement test strategies and plans for atomic clock systems and their subsystems.Lead the definition of End of Line test plans for new products and features in partnership with firmware, software, and hardware design teams.Design and set up optical and electrical test benches for system integration.Conduct compliance, robustness, and reliability testing on electronic and optical subsystems.Assist in board bring-up and debugging, providing valuable feedback to design teams.Develop and sustain an automated testing platform utilizing Python.Operate and interface with a variety of electrical and optical laboratory testing equipment.Process and visualize test data, employing scripting and analytical tools to derive actionable insights.Engage with Git-based software development workflows to manage, version, and collaborate on test software.

Infleqtion is at the forefront of quantum technology, addressing some of the most pressing challenges globally. By leveraging the principles of quantum mechanics, we design, develop, and integrate cutting-edge quantum computing systems, sensors, and networks. Our mission is to make 'quantum everywhere' a reality, powered by our innovative ecosystem of devices and platforms.POSITION SUMMARYWe are looking for a highly skilled Senior Embedded Software Engineer to join our Emerging Tech Team, focusing on the development and validation of a quantum sensor system for space applications. This role involves close collaboration with physicists and hardware engineers to create control system code, automated tests, and CI/CD pipelines. You will also be hands-on in the lab, troubleshooting and bringing up custom PCBs and systems.KEY RESPONSIBILITIESEnsure high test coverage by utilizing our CI pipelines and hardware test beds, instilling confidence in your designs.Contribute significantly to developing control system architectures for future quantum sensors.Collaborate with firmware, software, and hardware design teams to define and capture system requirements.Design and implement electrical test benches for seamless system integration.Conduct compliance, robustness, and reliability testing for electronic subsystems.Assist in board bring-up and debugging efforts, providing valuable feedback to design teams.Develop and maintain an automated testing platform utilizing Python.Operate and interface with a diverse array of electrical and optical lab test equipment.Analyze and visualize test data, using scripting and analysis tools to derive meaningful insights.Participate in Git-based software development workflows to manage and collaborate on testing software.

Infleqtion builds quantum computers, sensors, and networks to address practical challenges using quantum mechanics. The company has a global presence, with offices in Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This IT Service Desk Technician role is a full-time, on-site position based at Infleqtion’s Louisville, Colorado office. Role overview The IT Service Desk Technician acts as the first point of contact for employees who need technical support. The role involves troubleshooting a range of IT issues, providing solutions, and documenting outcomes. Effective communication, strong problem-solving, and a calm, service-oriented approach are essential for success. Main responsibilities Respond to IT support requests in person, by phone, email, chat, and through ticketing systems. Diagnose and resolve hardware, software, and connectivity problems for end users. Log, categorize, prioritize, and track incidents and service requests using the ITSM/ticketing platform. Support desktop and laptop computers, mobile devices, printers, and related peripherals. Assist with user account management, including password resets, permissions, and access requests (such as Active Directory and Microsoft 365). Provide assistance for common business applications and collaboration tools. Escalate complex or unresolved issues to Tier 2/3 support teams as needed. Follow established procedures for incident, request, and change management in line with ITIL guidelines. Help maintain and update documentation and knowledge base articles. Support onboarding and offboarding by provisioning equipment and setting up accounts. Maintain high customer satisfaction through clear communication and timely follow-up.

Infleqtion develops quantum computers, sensors, and networks, applying quantum mechanics to address complex problems. The company operates internationally and aims to expand access to quantum technology through its devices and platforms. Location This is a full-time, onsite position in Louisville, Colorado. Infleqtion also has offices in Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. Role overview The Systems Cloud Administrator oversees both on-premise and cloud infrastructure for the organization. Responsibilities span the entire lifecycle, from initial design and deployment to maintenance and ongoing improvements. The role requires a strong background in virtualization, cloud platforms, and enterprise systems, along with a focus on clear documentation and reliable operations. What you will do Design, deploy, and maintain on-premise infrastructure using platforms such as VMware, Hyper-V, and Proxmox. Manage and optimize cloud environments across Microsoft Azure, AWS, and Google Cloud Platform (GCP). Administer core IT services including Active Directory, Microsoft 365, DNS, DHCP, and identity management tools. Perform regular server maintenance: patching, upgrades, performance tuning, and capacity planning. Monitor system health, availability, and performance, addressing issues proactively to reduce user impact. Troubleshoot and resolve complex Tier 2 and Tier 3 issues escalated from the IT Service Desk. Maintain security and compliance by aligning systems with company policies and industry standards. Create and update technical documentation, standard operating procedures, and system diagrams. Collaborate with teams across the company on infrastructure projects, migrations, and integrations. Implement and support backup, disaster recovery, and business continuity solutions.

At Infleqtion, we are dedicated to addressing some of the world’s most pressing challenges through the application of advanced quantum technology. Our goal is to bring atom-based quantum products to market, achieving exceptional enhancements in sensing and computing capabilities. We take pride in our commitment to advancing the quantum ecosystem, paving the way for significant technological breakthroughs today, as well as laying the groundwork for the innovations of tomorrow.POSITION SUMMARYThe Hardware Engineering Team within Infleqtion’s Computing Product Group (CPG) is on the lookout for a Senior Embedded Software Engineer. In this vital role, you will be responsible for developing and delivering high-performance embedded and systems software that facilitates real-time quantum error correction and classical control at scale. Your work will involve the integration of NVIDIA high-speed interconnects with quantum error-correction decoding pipelines, collaborating closely with quantum software, physics, and hardware teams.This is a senior-level individual contributor position where you will independently manage complex subsystems from start to finish within an established architecture, tackle technically challenging issues, liaise directly with external partners, and mentor junior engineers, without defining the long-term platform architecture. You will also act as the primary point of contact for subsystem hardware integration with NVIDIA’s NVQLink.JOB RESPONSIBILITIESIn this role, you will be entrusted with:Independently designing, implementing, validating, and maintaining embedded and systems-level software subsystems that support real-time quantum error correction and control.Translating quantum error-correction specifications (code distance, syndrome rates, latency budgets) into precise classical compute, memory, and interconnect requirements.Designing systems that fulfill deterministic latency, bandwidth, and reliability criteria across CPU, GPU, FPGA, and high-speed interconnect domains.Serving as the technical advisor for NVIDIA NVQLink integration, encompassing topology, bandwidth modeling, latency characterization, and failure analysis. This role involves direct collaboration with NVIDIA personnel, as well as experts from academia and U.S. national laboratories.Working in close partnership with Quantum Software, Physics, Electrical, and Systems Engineering teams to co-design hardware/software interfaces.Troubleshooting and resolving intricate performance, scaling, and integration challenges across firmware, drivers, operating systems (Embedded Linux/bare-metal environments), GPU runtimes, and hardware.Developing and maintaining validation infrastructure, performance benchmarks, and test harnesses to ensure deterministic behavior and scaling.

Infleqtion is a pioneering global leader in quantum technology, dedicated to addressing some of the planet's most pressing challenges. By harnessing the principles of quantum mechanics, we develop and integrate advanced quantum computers, sensors, and networks. Infleqtion empowers a future of "quantum everywhere" through our innovative ecosystem of devices and platforms. POSITION SUMMARYWe are on the lookout for an enthusiastic Applications Engineer to spearhead our new Applications Lab, concentrating on rapid prototyping utilizing Infleqtion's state-of-the-art quantum technologies, such as atomic clocks and quantum sensors. This pivotal hands-on role serves as a crucial link between engineering and customer engagement. The ideal candidate is adaptable, thrives in dynamic, cross-disciplinary environments, and is eager to create compelling technology demonstrations that resonate with market demands.This role involves close collaboration with our Business Development and Sales teams to uncover customer interests and transform those insights into functional prototypes and application demonstrations. To excel in this position, candidates must possess a robust technical background, exceptional problem-solving abilities, and outstanding communication skills.JOB RESPONSIBILITIESEstablish, organize, and oversee the Infleqtion Applications Lab to facilitate demo development and prototyping.Design, construct, and deploy proof-of-concept systems that illustrate the practical applications of quantum products.Collaborate directly with Sales and Business Development teams to interpret customer requirements and craft product application narratives.Work alongside cross-functional engineering teams to comprehend internal platforms and adapt them for market testing.Develop and implement custom software to interface with existing hardware platforms, integrating various subsystems into cohesive, demo-ready applications.Create simulations demonstrating the feasibility of application concepts and contribute to technical publications and white papers.Maintain and enhance the demo codebase and hardware infrastructure.Document prototypes, formulate test protocols, and aid in the transition of successful applications to product teams.Support public and private demonstrations and assist during customer workshops.

Join Infleqtion: Pioneering Quantum TechnologyAt Infleqtion, we are dedicated to advancing atom-based quantum technologies that significantly enhance sensing and computing capabilities. As a dynamic deep-tech startup, we prioritize innovation through a results-oriented, fast-paced, and customer-centric framework.We are on the lookout for a talented Software Engineer with extensive experience in Rust and a solid understanding of embedded systems development to join our collaborative engineering team. This position involves comprehensive stack involvement, from low-level embedded Rust and gateware integration to higher-level Rust application interfaces, alongside front-end technology exposure. You will closely collaborate with hardware, firmware, and application teams to craft reliable, high-performance systems.While a background in physics is not mandatory, familiarity with physical systems or scientific instrumentation will be advantageous. The ideal candidate is a dedicated software engineer with a strong intuition for embedded systems and a passion for enhancing their technical skills.

Hollister Co. is seeking a passionate and dynamic Assistant Manager to join our team at the Mall St. Matthews. In this role, you will be responsible for assisting the Store Manager in driving sales and ensuring that our customers receive the best shopping experience possible. You will lead by example, motivate your team, and uphold the Hollister brand standards.

Join ColdQuanta as a Senior Optical & Hardware Integration Engineer, where you will play a pivotal role in the development and integration of cutting-edge optical systems and hardware components. You will collaborate with a talented team to innovate and enhance our product offerings, ensuring they meet the highest standards of performance and reliability.Your expertise will guide the integration of optical technologies into our hardware platforms, contributing significantly to the design and implementation of advanced solutions. If you are passionate about optics and hardware integration, and thrive in a fast-paced, dynamic environment, we want to hear from you!

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.

Join the dynamic team at Hollister Co. as a Brand Representative. In this role, you will embody the brand's culture and values, engaging with customers to create an inviting shopping experience. Your passion for fashion and customer service will help foster a welcoming environment in our Louisville store.

Company OverviewJoin MakeMusic in shaping the future of music creation and education!At MakeMusic, we recognize that music has the profound ability to inspire, connect, and transform lives. For over 30 years, we have been leaders in music technology, developing innovative tools that empower musicians to compose, teach, learn, and perform. Our solutions are trusted by Grammy-winning composers, top-tier educators, and students in classrooms and homes worldwide.With the introduction of MakeMusic Cloud, we have revolutionized music practice for the digital era, providing students with real-time feedback, access to a vast repertoire library, and effective tools for educators to personalize instruction and track student progress.If you are passionate about music, driven by innovation, and eager to create impactful tools for musicians and educators globally, MakeMusic is the perfect stage for your talents!We welcome applications from all qualified individuals regardless of gender, race, national origin, age, sexual orientation, gender identity, physical disability, religion, or unemployment duration.General SummaryAs the Engineering Manager, you will lead a dynamic engineering team within a cross-functional product development environment. You will oversee the successful execution and delivery of features that delight our customers. Your responsibilities encompass the entire software development lifecycle, including collaborating with the Product Manager to define requirements, project planning, ensuring product quality, and delivering exceptional customer experiences. Additionally, you will champion continuous improvement initiatives within the team, enhance engineering processes, and mentor engineers to foster their growth.You are a lifelong learner who approaches challenges as opportunities for enhancement and values input from team members at all levels. You will work closely with the MakeMusic Practice Architects Team and collaborate with Product and Customer teams, reporting directly to the VP of Engineering for Music Brands.Core Functions:Foster an environment for team success by establishing clear goals, ensuring alignment with product and business objectives, and promoting collaborative execution within and beyond the team.Recruit, train, mentor, and lead software engineers to achieve business goals and engineering excellence.Manage team performance through continuous feedback, regular performance evaluations, mentorship, and role assessments.Conduct annual reviews and recommend promotions and salary adjustments as necessary.Collaborate transparently with other functional managers to identify and pursue inter-team opportunities and address challenges.

Overview: Join Language Services Associates (LSA) as a Vietnamese Interpreter in Louisville, CO. You will play a vital role in improving communication for the Limited English Proficient (LEP) community across various sectors, such as healthcare, legal, and customer support. LSA is always on the lookout for skilled interpreters ready to take on diverse assignments! Responsibilities:· Deliver exceptional customer service.· Maintain adherence to the Code of Professional Conduct, ensuring strict confidentiality.· Follow all policies and procedures related to professional interpretation, including best practices in the industry.· Engage in training sessions and participate in ongoing Quality Assurance evaluations.

Overview:Language Services Associates (LSA) is actively seeking skilled Burmese interpreters in the Louisville, CO area. As a valued member of LSA’s network of Independently Contracted Interpreters, you will play a crucial role in facilitating effective communication for the Limited English Proficient (LEP) community across diverse settings, including medical, legal, and customer service environments. LSA is continuously expanding its roster of qualified interpreters to meet a wide array of interpreting needs.Responsibilities:· Provide exceptional customer service to clients and stakeholders.· Uphold the Code of Professional Conduct by maintaining confidentiality and integrity in all interactions.· Follow established policies and procedures, including professional interpretation protocols and industry best practices.· Engage in training sessions and participate in ongoing Quality Assurance assessments to enhance service delivery.

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.

Umoja Biopharma seeks a Senior Calibration Technician to join the team at its Louisville, Colorado facility. This is a fully on-site role, requiring presence at the location five days per week. The focus is on supporting calibration and maintenance for measurement instruments used in lentiviral vector development and manufacturing. Key responsibilities Carry out both routine and non-routine calibrations for production, laboratory, and facility operations. Independently handle calibrations for parameters such as conductivity, pH, pressure, flow, temperature, speed, and mass. Operate within GxP guidelines and Umoja's quality standards. Troubleshoot complex calibration or instrumentation issues, taking initiative to resolve problems. Coordinate with external service providers to ensure all work meets Umoja's compliance requirements. What Umoja Biopharma values Ability to work independently with little supervision. Strong initiative and problem-solving skills. Background in calibration and maintenance of measurement instruments within a regulated setting. Dedication to quality and compliance in all tasks. This position plays a key role in maintaining high standards for instrumentation and compliance at Umoja's Louisville site.

Company OverviewAt Peaksware, we are a passionate community of musicians, athletes, coaches, and educators dedicated to empowering individuals to reach their full potential. Our innovative software solutions seamlessly connect performers, instructors, and creators, enabling them to publish, teach, and train through the principles of deliberate practice.Our renowned brands, including TrainingPeaks, MakeMusic, TrainHeroic, and Alfred Music, are all part of the Peaksware family. TrainingPeaks specializes in providing software tools for coaches and athletes to plan, analyze, and optimize endurance training. TrainHeroic delivers cutting-edge solutions tailored to the strength and conditioning needs of athletes and coaches. MakeMusic revolutionizes music creation and education, while Alfred Music publishes educational music resources aimed at helping teachers, students, and music lovers alike enjoy the art of music-making.Since 2017, Peaksware has consistently ranked among BuiltInColorado’s Top 100 Companies and has received accolades from Outside Magazine’s “Best Places to Work” multiple times. We are also proud to be recognized by Mogul as one of the “Top 1,000 Companies for Millennial Women Worldwide.” Our vibrant company culture is a source of pride, and we are honored to be acknowledged as a leading workplace both locally and nationally.Join our dynamic team! We welcome applicants from all backgrounds and ensure equal consideration for employment regardless of gender, race, national origin, age, sexual orientation, gender identity, physical disability, religion, or duration of unemployment.Role Overview: As a Bilingual Account Executive (Inbound), you will be instrumental in nurturing potential leads to foster business growth. Collaborating closely with prospective clients—primarily endurance and strength coaches—you will assess their needs and desired outcomes, cultivating strong relationships while showcasing the unique value of our products. This role is integrated within the Sales team and involves close cooperation with Customer Support, Customer Success, Marketing, and Product Teams, reporting directly to the Director of Sales.Candidate Profile: You are an active listener who thrives on discovery and is passionate about connecting customers with the right solutions efficiently. With a goal-oriented mindset, curiosity, and resilience, you excel in a fast-paced, dynamic environment. Your dedication to helping others achieve their goals will transform these relationships into loyal customers.

Join Celsius, a vibrant and dynamic brand fueling your everyday hustle with essential energy to help you aim high, live fit, and surpass your goals. At Celsius, we embrace a culture of joy, confidence, and boldness, creating a community where energy is not just consumed but truly lived.As a Staff Accountant specializing in Inventory Cost, you will play a crucial role in ensuring accurate inventory valuation and facilitating timely month-end close processes. Your responsibilities will include preparing recurring reconciliations, inventory schedules, and variance analyses, particularly in relation to Purchase Price Variance (PPV). You will collaborate closely with our Inventory Operations and Supply Chain teams to validate inputs from external sites and help resolve any transactional issues affecting inventory and Cost of Goods Sold (COGS).The ideal candidate is detail-oriented, data-driven, and eager to streamline processes for improved efficiency. Ready to elevate your career? Join us at Celsius and redefine what it means to be energized!