Senior Cryogenic Engineer at Xcimer | Denver, CO

Xcimer Energy develops Inertial Fusion Energy (IFE) technology in pursuit of practical, clean fusion power. The team brings together decades of research experience and advanced laser systems to accelerate the deployment of fusion power plants that support global decarbonization. Role Overview The Senior Cryogenic Engineer will lead the development of deuteri…

At Xcimer Energy, we harness decades of research in Inertial Fusion Energy (IFE) alongside innovative laser technology to revolutionize energy production. Our mission is to expedite the deployment of fusion power plants, contributing to global decarbonization efforts. With a team of leaders in challenging technologies, fusion science, and manufacturing, we are committed to executing our vision swiftly and effectively. Backed by prominent investors, Xcimer is uniquely positioned to deliver clean, limitless fusion energy to tackle climate change. Join us in our quest to empower a sustainable future through inertial fusion!As a Senior Accountant, you will play a pivotal role in managing our comprehensive accounting functions, including general ledger maintenance, accounts payable oversight, auditing, and ensuring compliance with regulatory standards. You will establish and maintain robust financial controls, policies, and reporting systems designed to safeguard company assets. This role also involves collaborating with team members to enhance cost accounting processes and facilitating the transition of our accounting infrastructure to advanced enterprise systems, including ERP and compliance tools. We seek a seasoned accountant with a passion for problem-solving and a commitment to quality, ready to make a significant impact in the energy sector!

Xcimer Energy is at the forefront of revolutionizing energy with decades of research in inertial fusion energy (IFE) and a unique, scalable laser architecture aimed at delivering commercially viable fusion power plants. Our mission is to accelerate the deployment of fusion energy to significantly contribute to global decarbonization efforts. As our engineering department expands from six to ten and beyond, we are on the lookout for a Chief of Staff, Engineering. This pivotal role involves close collaboration with the SVP of Engineering to enhance execution, bolster operational rigor, and ensure seamless alignment across our rapidly growing technical teams. In the capacity of Chief of Staff, Engineering, you will serve as both an operational and strategic partner to the SVP of Engineering. Your responsibilities will include driving cross-departmental coordination and planning, refining execution processes, and ensuring visibility into organizational priorities, risks, and advancements. Additionally, your role will enhance leadership efficiency by managing key projects, facilitating communication, and promoting organizational cohesion.

At Xcimer Energy, we are at the forefront of innovation in Inertial Fusion Energy (IFE), fueled by decades of pioneering research paired with cutting-edge laser technology. Our vision is to rapidly deploy fusion power plants to meet global decarbonization targets, contributing to a sustainable energy future. With a team composed of leaders in technology, fusion science, and manufacturing, we are dedicated to executing our mission efficiently and effectively. Supported by top-tier investors, Xcimer is uniquely positioned to provide abundant, clean fusion energy to tackle climate change. Join us in our quest to power a better world with inertial fusion!As a Paralegal at Xcimer, you will utilize your expertise to support our employees and the legal department across various legal domains. We seek individuals who can apply their technical skills, analytical thinking, and commitment to excellence to shape the future of energy positively!

At Xcimer Energy, we harness decades of pioneering research in Inertial Fusion Energy (IFE) and innovative laser technology to drive our mission of deploying fusion power plants, accelerating global decarbonization efforts. With a team of acclaimed experts in tough tech, fusion science, and advanced manufacturing, we are poised to deliver clean, limitless fusion power to address climate change challenges. Join us in revolutionizing the energy landscape with inertial fusion! As a Laser Engineer, you will utilize your specialized knowledge to design, construct, modify, and operate both new and existing pulsed laser systems. Your role will involve optimizing these systems by enhancing laser beam quality and collaborating with vendors to acquire essential hardware for specific upgrades. You will also assist optics engineers in aligning intricate laser beam paths, calibrating diagnostic equipment, and identifying opportunities for improved diagnostics. Writing specifications and collaborating with vendors to develop cutting-edge high-energy laser diagnostics will be key elements of your role. Additionally, you will maintain laser systems by realigning, diagnosing issues, and coordinating with vendors to resolve malfunctions swiftly. Conducting spectroscopic experiments, collecting and processing data, and working closely with experimentalists, theorists, optics engineers, and controls engineers will ensure the reliability of the systems in supporting experimental objectives. We seek innovative scientists and engineers who can leverage their technical expertise, problem-solving abilities, and commitment to excellence to make a meaningful impact on the future of energy!

At Xcimer Energy, we are pioneering the future of energy through our innovative approach to Inertial Fusion Energy (IFE) and advanced laser technology. Our mission is to rapidly deploy fusion power plants to achieve global decarbonization objectives. With a dynamic team of experts in tough tech, fusion science, and manufacturing, we are positioned to revolutionize the energy landscape and combat climate change. Join us in our quest to create a cleaner, sustainable world powered by inertial fusion!This is a full-time, onsite position located at our headquarters in Denver, CO.As the Project Delivery Manager, you will oversee the execution of a significant element within a multi-billion-dollar development initiative. Collaborating closely with the Element Director, you will play a crucial role in daily project delivery, addressing challenges proactively, ensuring that project commitments are fulfilled, and providing leadership with transparent insights into schedule and financial performance. We seek project coordinators who can leverage their technical skills, problem-solving abilities, and commitment to excellence to drive positive change in the energy sector!

Xcimer Energy is at the forefront of developing Inertial Fusion Energy (IFE) technologies, utilizing decades of research along with innovative laser architecture. Our commitment is to rapidly deploy fusion power plants that align with global decarbonization initiatives. Our exceptional team, composed of leaders in tough tech, fusion science, and manufacturing, boasts a proven record of swift execution. Backed by prominent investors, Xcimer is uniquely positioned to deliver boundless, clean fusion power as a solution to climate change. Join us in our mission to create a sustainable future through inertial fusion!We are in search of a dedicated PLM Administrator who will take charge of the configuration, customization, and operation of Teamcenter, as well as the entire engineering digital thread—from part creation through procurement, manufacturing, and consumption of digital work orders.This pivotal role will enhance Xcimer's digital ecosystem across Teamcenter, Violet Labs, Boltline, Precoro, and various lifecycle and manufacturing systems. You will be responsible for installing, configuring, and optimizing Teamcenter environments, removing process bottlenecks, and ensuring precise, automated data flow between engineering and other departments.We seek a thought leader who is enthusiastic about:· Crafting sophisticated and scalable engineering workflows,· Developing a robust and traceable digital thread, and· Establishing the certification and regulatory groundwork for the next generation of commercial fusion power plants.Your contributions will be instrumental in accelerating the engineering-to-hardware cycle, helping us fulfill our vision of transforming the future of global energy!

About Xcimer Energy Xcimer Energy is advancing Inertial Fusion Energy (IFE) through research and laser technology, aiming to accelerate the rollout of fusion power plants. The company’s mission centers on supporting decarbonization goals and addressing climate change. Backed by leading investors, the team brings together specialists in fusion science, tough tech, and manufacturing to deliver clean fusion energy. Role Overview: Lead Experimental Physicist The Lead Experimental Physicist will guide complex laser-based experiments from initial concept through analysis. This position requires strong experimental physics expertise and the ability to quickly learn advanced systems. The role involves designing experiments, improving diagnostics, interpreting data, and finding new ways to increase experimental efficiency. Collaboration is central: work closely with scientists, engineers, and technical experts to drive major experimental projects forward. Key Responsibilities Design and execute advanced laser-based experiments Develop and refine diagnostic tools and methods Analyze experimental data and draw actionable conclusions Identify and implement improvements to experimental processes Work alongside a multidisciplinary team to achieve project goals Who We’re Looking For Scientists and engineers with strong technical skills in experimental physics Problem solvers interested in advancing energy technology Individuals eager to contribute to the future of sustainable energy Location Denver, CO

At Xcimer Energy, we are pioneering advancements in Inertial Fusion Energy (IFE) with innovative laser technology. Our vision is to rapidly deploy fusion power plants that contribute to global decarbonization efforts. We have curated an exceptional team of experts in tough tech, fusion science, and manufacturing, all committed to swift execution. Backed by prominent investors, Xcimer is in a prime position to provide endless, clean fusion energy to combat climate change. Become a part of our mission to create a sustainable future through inertial fusion power! As a Laser Scientist, you'll leverage your expertise and creativity to design and develop state-of-the-art high-energy excimer lasers. Collaborating closely with teams in Theory & Computation, Laser Architecture, and Engineering, you will optimize the performance of laser oscillators and amplifiers tailored to our specific energy needs. We seek passionate scientists and engineers who are dedicated to quality and eager to make a meaningful impact on the future of energy!

Role overview The Senior Test Engineer on the Laser System Operations team at xcimer in Denver, CO will take the lead in testing and validating advanced laser systems. This position plays a key role in maintaining quality and driving improvements in system performance and reliability. What you will do Direct testing and validation activities for laser systems Work closely with cross-functional teams to ensure quality standards are met Contribute to ongoing efforts to improve system performance and reliability

Are you passionate about innovative energy solutions? At Xcimer Energy, we welcome your interest even if you don't see a specific job opening that fits your profile.We're constantly on the lookout for exceptional engineers, scientists, technicians, and other talented individuals who are eager to contribute to our mission of delivering clean, safe, and abundant energy through cutting-edge laser-driven inertial fusion technology. If you thrive on solving complex challenges from inception to completion, we want to hear from you!Xcimer Energy combines decades of research in Inertial Fusion Energy (IFE) with innovative laser architecture to accelerate the deployment of fusion power plants, aimed at meeting global decarbonization targets swiftly. Our team consists of leaders in tough tech, fusion science, and manufacturing, all committed to rapid execution. With the support of leading investors, Xcimer is uniquely equipped to provide limitless, clean fusion power to tackle climate change. Join us in our quest to power a sustainable future!We invite talented engineers, scientists, and technicians to apply their technical skills, problem-solving abilities, and commitment to quality to make a lasting impact on the future of energy!

xcimer is seeking a Senior Optical Engineer with a focus on stray light analysis and mitigation. This position centers on designing and optimizing advanced optical systems to improve performance and reliability. Role overview Work with cross-functional teams to address stray light challenges in optical system design. The role involves applying deep knowledge of optical engineering principles to identify, analyze, and reduce stray light effects. What you will do Design and refine optical systems with an emphasis on minimizing stray light. Collaborate with engineering and product teams to develop solutions that support product reliability. Contribute expertise to projects that require advanced stray light mitigation techniques. Location This position is based in Denver, CO.

xcimer is looking for a Mechanical Engineer to join the team in Denver, CO. This role centers on designing, developing, and testing mechanical systems and devices that meet the company’s standards for both functionality and efficiency. Key responsibilities Design and refine mechanical systems to support project objectives Develop and test devices to achieve set performance targets Offer technical expertise to support ongoing engineering projects The work in this position plays a direct part in advancing xcimer’s engineering projects and overall success.

Join xcimer as an Adaptive Optics Engineer and play a pivotal role in advancing optical technologies. In this dynamic position, you will be responsible for designing and implementing adaptive optics systems that enhance imaging capabilities in various applications, including astronomy and biomedical optics.

About the Role xcimer is hiring an Optical Control Systems Engineer in Denver, CO. This position focuses on designing and implementing optical control systems that support advanced technology development. The work centers on applying knowledge of optics and control systems to create practical solutions for complex engineering challenges.

xcimer is hiring a Program Director, Site and Structures in Denver, CO. This leadership role centers on managing and guiding key site and structural projects that support the company’s infrastructure goals. Role overview The Program Director provides strategic oversight for a portfolio of site and structural programs. The position is responsible for ensuring projects are executed efficiently and delivered on schedule, while maintaining high standards of quality and safety. Collaboration Expect to work closely with cross-functional teams, external partners, and stakeholders. Building strong relationships and clear communication will be essential to drive project outcomes and align efforts across groups. Key focus areas Strategic management of site and structure initiatives Oversight of project execution and delivery Ensuring adherence to quality and safety standards Collaboration with internal teams and external partners

Role overview The Senior Structural Analyst at xcimer, based in Denver, CO, plays a key part in shaping structural frameworks for a variety of engineering projects. This role involves close collaboration with a team of experienced engineers, aiming to deliver solutions that are both practical and forward-thinking. What you will do Review and analyze structural designs to confirm they meet safety, efficiency, and sustainability standards Develop and improve frameworks tailored to different engineering needs Work alongside engineers to address and resolve complex structural problems Impact The work done in this position directly affects the quality and performance of xcimer's projects. Strong analysis supports safer, more reliable, and sustainable outcomes throughout the company's portfolio.

Join our dynamic team at xcimer as an IT Support Technician, where you will play a crucial role in maintaining and enhancing our IT infrastructure. You will be the first point of contact for technical support, assisting employees with hardware and software issues, and ensuring seamless operations across the organization. Your expertise will help us leverage technology effectively to improve productivity and efficiency.

ABOUT USHolder Construction is a prestigious and nationally recognized leader in the construction sector, consistently earning a top spot on ENR’s Top 400 Contractors list. We pride ourselves on being a performance-driven organization that values and rewards excellence while investing in the growth and development of our employees. Through our structured career development program, we enable our associates to advance swiftly into new roles and responsibilities based on merit. With operations spanning across the United States, we offer a competitive compensation and benefits package, which includes:Annual bonus programPaid time offHealth, dental, vision, and life insurance401(k) retirement planNight and swing shift differential pay for select rolesAbout the RoleWe are seeking a Senior Engineer to join our Preconstruction team at our regional office in Denver, Colorado. This position is full-time and requires in-person attendance.Key ResponsibilitiesInterpret and analyze construction design documents and specifications.Conduct construction cost estimates and quantity surveys for various scopes of work.Oversee cost and design issues throughout project lifecycles.

Join Convera as a Senior Software Engineer in Denver, CO!As a key member of our engineering team, you will design, develop, and implement new software solutions while enhancing existing applications to ensure a seamless customer and end-user experience. We value innovative thinking, so you'll be encouraged to develop high-performing, scalable solutions. Your role will include leading code reviews, contributing to team-wide engineering initiatives, and staying abreast of the latest technologies in frontend and backend development, AWS services, and software engineering best practices.You will spearhead the creation of Microservices and Batch jobs for our applications, design and maintain fast and responsive APIs, and develop CI/CD pipelines for automated testing, building, and deployment of services. This role offers the flexibility of remote work three days per week, while still reporting to our office in Denver.