Xcimer EnergyVerified Job Source

Laser/Optical Simulation Engineer

Quinte West, ON
On-site
Posted Sep 1, 2026
1 position

US$175,000–US$225,000 / year

Opens an external site

Employment type: Full-time
Experience level: Senior · 8+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week

Job summary

The engineer will own and develop a virtual beamline digital twin for fusion laser architecture, collaborating with cross-functional teams to refine hardware requirements. They will also perform system-level trade studies, sensitivity analyses, and implement rigorous code validation checks.

Job details

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 Laser/Optical Simulation Engineer, you will apply your skills and creativity to help develop and take ownership of an end-to-end digital twin (“virtual beamline”) for our fusion laser architecture that utilizes excimer lasers and nonlinear optical compression! You will help develop new modules, define requirements and interfaces for new modules developed by other teams, improve functionality and performance, and ultimately use this end-to-end model to perform system-level trade studies and sensitivity analyses in order to refine hardware requirements. We are looking for our scientists and engineers to apply their technical expertise, problem solving skills, and dedication to quality to positively impact the future of energy! \n Responsibilities Take ownership of a “virtual beamline” digital twin of our laser architecture Work with other teams (Theory/Computation, Software Engineering, Optical Engineering, Mechanical Engineering, etc.) and key stakeholders to continue the development of a scalable virtual beamline architecture, as well as requirements, interfaces, functionality, and new modules Run Monte Carlo simulations and parameter sensitivity studies using HPC resources Write clear documentation to allow other users and developers to get up to speed quickly Develop, implement, and enforce unit tests and other code validation checks Think outside the box to identify and solve unique challenges involving big lasers! Qualifications Education: Bachelor’s degree in physics, optics, electrical engineering, computer science, or related field Experience: 6+ years of experience in the fields of optical physics, lasers, or software engineering Expertise in optical simulation methods, including one or more of the following: diffraction, ray tracing, Gaussian beamlet decomposition, laser amplification, turbulence correction, or nonlinear optical propagation Demonstrated ability to write and maintain a high-quality, scalable code base with a team Design of and hands-on experience using complex optical/laser systems Excellent verbal and written communication, including documentation of technical results 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 Master’s or PhD in physics, optics, electrical engineering, computer science, or related field 8+ years of experience in the fields of optical physics, lasers, or software engineering Zemax, FRED, or similar software Experience with inverse solution methods CAD software experience Knowledge of algorithm optimization for speed, especially for distributed computing \n $175,000 - $225,000 a year Candidates may be considered for other positions at Xcimer Energy, and our actual base salary will be determined on an individual basis and may vary based on job-related knowledge and skills, education, and experience. The range is published in accordance with Colorado Equal Pay for Equal Work Act and California Equal Pay Act. \n 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 Xcimer offers a comprehensive benefits package designed to support employee health, well-being, and long-term success. Benefits include medical, dental, and vision coverage; basic and supplemental life insurance; short- and long-term disability; paid parental leave for employees at the time of birth or adoption; and a 401(k) with a company match of up to 6%. Eligible employees also receive equity, allowing them to share in the company’s long-term success. Xcimer operates under a flexible Paid Time Off (ATO) approach. Rather than a fixed number of vacation days, employees are trusted to take the time they need to rest and recharge while meeting the expectations of their role and team. In addition, employees receive paid sick time, 13 company-paid holidays, and an annual paid company shutdown. Benefits are available to regular employees, including part-time and fixed-term roles, as well as interns, with eligibility varying by benefit.

What you’ll do

Requirements

Candidates must have a bachelor's degree in a relevant field and at least 6 years of experience in optical physics, lasers, or software engineering. Expertise in optical simulation methods and the ability to maintain scalable code bases are essential, along with U.S. work authorization.

Benefits

• Medical coverage • Dental coverage • Vision coverage • Basic life insurance • Supplemental life insurance • Short-term disability • Long-term disability • Paid parental leave • 401(k) with company match • Equity • Paid time off • Paid sick time • Paid holidays • Annual paid company shutdown