Xcimer Energy

Systems Engineer IV

10325 East 47th Avenue, Denver, CO 80238

On-site · Full-time

First seen by offpeak October 22, 2026

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Xcimer Energy leverages decades of research on Inertial Fusion Energy (IFE) combined with groundbreaking new laser architecture. Our mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. Xcimer has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by leading investors, Xcimer is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. Join us in powering a better world with inertial fusion!

This is a full-time, onsite role based at our headquarters in Denver, CO.

As a Systems Engineer IV, you will be a thought leader in Xcimer influencing and educating technical leads to capture, organize, and track the integrated technical baseline for our IFE Program. The successful candidate will perform leading and supporting roles in establishing and maintaining bidirectional traceability across our requirements, architecture, documentation, and analysis products. The candidate will define and maintain infrastructure, define relationships between internal and external interfaces, and communicate system-level use cases and relationships to a diverse group of stakeholders. The candidate will work with team leads across the organization to craft the key framework and documents needed to define, design, build, test, and activate our facilities and systems. We are looking for engineers to apply their technical expertise, problem solving skills, and dedication to quality to positively impact the future of energy!

Responsibilities

Provide technical guidance and oversight to ensure the successful development and implementation of system functionality
Implement the processes, traceability, and documentation necessary to support IFE program
Collaborate with program teams, including new development and legacy systems, to identify opportunities for integration and support the development of updated releases
Carry out systems engineering activities in accordance with tailored system engineering standards and practices
Drive and coordinate technical decision making
Conduct risk assessments to ensure risk mitigation plans are developed and implemented
Act as the negotiator between multiple teams to make sure the holistic system is optimized
Develop strategies, approaches for specialty engineering (operability, reliability, maintainability, supportability) integration, analysis and verification

Qualifications

Education: Minimum of a B.S. degree in engineering or other technical field (e.g. mechanical, electrical, chemical, etc.)
Experience: 10+ years of Systems Engineering/Software Engineering experience
Proven experience leading cross-functional teams and collaborating with stakeholders to drive technical innovation and growth
Proven experience owning the integrated technical baseline for complex systems through the full Systems Engineering Lifecycle
Experience working on development programs for large, complex, integrated systems or facilities – preferably from the fusion/energy, nuclear, aerospace, or space and defense industry
Strong technical experience in simulation, software, and data analysis, with an understanding of industry trends and emerging technologies
Fluent with Atlassian suite tools (Confluence, Jira)
Experience with rapid technology development, integration, and testing
Great communication skills, ability to work effectively in teams, demonstrated execution and coordination skills
Project management skills including labor estimating and schedule management
Demonstrated configuration management experience
Must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee of granted asylum.

Desired

Experience with defining, designing, and activating large facilities for assembly, integration, and testing for large complex systems
Experience with high energy laser systems, optics, or nuclear energy systems

Equal Employment Opportunity Xcimer Energy is proud to be an Equal Opportunity/Affirmative Action Employer and is committed to attracting, retaining, and developing a highly qualified, diverse, and dedicated work force. Xcimer Energy hires and promotes people on the basis of their qualifications, performance, and abilities. We support the establishment and maintenance of a workplace that fosters trust, equality, and teamwork, in which all employees recognize and appreciate the diversity of individual team members. We provide all qualified applicants for employment and employees with equal opportunities for hire, promotion, and other terms and conditions of employment, regardless of their race, color, religion, gender, sexual orientation, gender identity, national origin/ethnicity, age, physical or mental disability, genetic factors, military/veteran status, or any other status or characteristic protected by federal, state, and/or local law. Xcimer Energy will consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state, and local laws. For more information on “EEO Is the Law,” please see here and here. Benefits Benefits Employee Benefits include: Medical, dental, vision, basic and supplemental life insurance, paid parental leave (must be employed at time of birth or adoption), short and long-term disability, 401(k) with a company match of up to 6%. Paid Time Off: 15 days per year based on weekly scheduled hours, 10 paid sick leave, and 13 company-paid holidays for all regular employees (including part-time), fixed-term, and interns. Equity will be granted to eligible employees. Equity is designed to allow employees to share in company results and success.

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