Discrete Event Simulation Engineer Jobs in California

Hadrian - Manufacturing the Future
Hadrian is building autonomous factories to reindustrialize America. By combining AI, advanced software, robotics, and full-stack manufacturing, we help aerospace and defense companies build rockets, satellites, aircraft, ships, and other mission-critical systems up to 10x faster and at significantly lower cost.
Following our $1.37B Series D at a $7.87B valuation, Hadrian is rapidly expanding our manufacturing footprint, launching new capabilities across welding, casting, forging, electronics, additive manufacturing, and more, while scaling our Factory-as-a-Service platform to transform how critical products are built.
Backed by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we're building the future of American manufacturing-and looking for exceptional people to help make it happen.
If you're ready to take on the most challenging and rewarding work of your career while helping create American manufacturing jobs for generations to come, you're exactly who we're looking for.
The Role:
Join Hadrian's Factory Simulation Team as part of the Factory Automation group. As a key technical contributor at the forefront of advanced manufacturing you will operate as a key contributor inventing and deploying solutions across our factory network, working alongside leadership, automation, factory development engineering, and operations teams.
This cornerstone role is centered on the design, development, and deployment of simulation systems that support rapid decision making for scalable high-performance manufacturing across domains such as forging, casting, maching, welding, and assembly. Your work will help shape the capabilities of our future factories through hands-on technical execution and cross-functional collaboration.
What You'll Do:

• Develop and refine low-, mid-, and high-fidelity simulations that align with factory build and optimization goals.
• Convert ambiguous layout concepts into executable DES and 3D simulations.
• Collaborate with engineering, operations, and leadership to deliver data-driven, actionable simulation insights.
• Maintain and enhance the simulation toolchain to support long-term scalability and usability.
• Create and manage a robust library of parametric and reusable simulation assets..

What We're Looking For:

• Strong systems thinking with a balance between rapid prototyping and sustainable platform design.
• Demonstrated experience in simulation development using Python (OOP), Visual Components, Omniverse or similar tools.
• Ability to distill technical results into clear insights for both technical and non-technical audiences.
• Self-driven, capable of taking initiatives from concept to functional MVP with measurable impact.
• Familiarity with kinematics, discrete event simulation, factory flows, and production methodologies.

What Will Set You Apart:

• Ability to rapidly build prototypes while thoughtfully managing long-term codebase health.
• Excellent cross-functional communication, with a talent for user-focused storytelling and iterative design.
• Broad technical skill set, including debugging, plugin/extension development (Python/C#), and data modeling.
• Background in industrial engineering principles, including line balancing and ROI analysis.
• Proficiency with 3D Modeling platforms (SolidWorks, NX, Blender), Siemens TeamCenter, and automated parametric asset creation.

Compensation
For this role, the target salary range is 160k-190k (actual range may vary based on experience).
This is the lowest to highest salary we reasonably and in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee's pay position within the salary range will be based on several factors, including, but not limited to, relevant education, qualifications, certifications, experience, skills, geographic location, performance, and business or organizational needs.
Benefits for Full-time Employees

• Medical, dental, vision, and life insurance plans for employees
• 401k
• Relocation support may be provided for certain situations, based on business need.
• Flexible vacation policy
• Equity

ITAR Requirements
To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
Use of AI in hiring
Hadrian uses AI-assisted tools in our recruiting and hiring processes to help our team work more efficiently. This may include tools that help organize and analyze recruiting data, as well as an AI-powered notetaker that can record and transcribe interviews and help coordinate feedback. These tools support our team and are not used to make hiring decisions. All candidate evaluations and hiring decisions are performed by humans. If an interview will be recorded, you will be notified in advance and may opt out at any time with no impact on your candidacy. Candidate data processed through these tools is subject to the same protections described in our Privacy Policy.
Hadrian Is An Equal Opportunity Employer
It is the Company's policy to provide equal employment opportunity for all applicants and employees. The Company does not unlawfully discriminate on the basis of race inclusive of traits historically associated with race (including, but not limited to, hair texture and protective hairstyles, such as braids, locks and twists), color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, transgender status, national origin (including, in California, possession of a drivers license), ancestry, citizenship, age, physical or mental disability, height or weight, medical condition, family care status, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, exercise of reproductive rights, any other basis protected by local, state, or federal laws, or any combination of the above characteristics. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.