Principal Systems Engineer
Xcimer
| Company | Xcimer |
| Category | Engineering |
| Location | Denver |
| Remote | On-site (inferred) |
| Employment | Full-time |
| Level | Lead |
| Salary | USD 201k–237k |
| Posted | 27 Jul 2026 |
| Last verified | 30 Jul 2026 |
| Source | Employer career page (lever) |
Description
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 Principal Systems Engineer , 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 Programs, and our Defense Programs. 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!