Jobs at Alumni Ventures Portfolio Companies


Systems Engineer III



Software Engineering
Rockville, MD, USA
Posted on Thursday, February 22, 2024


The Engineer III, Systems is responsible for developing, managing, and documenting requirements, risks, and cost projections for our rapidly developing nuclear reactor projects, including microreactors for terrestrial and space applications and their supporting technologies. Overall, this position is about enacting a model-based systems engineering (MBSE) approach from concept formulation all the way to detailed design.


  • Work with a systems engineering team to develop and document high-level requirements for new or proposed projects.
  • Facilitate the expansion of high-level requirements into traceable lower Systems, Structures and Components (SSCs) level requirements, and implement in systems integration software (e.g., GENESYS).
  • Lead or facilitate requirements reviews to develop baselines and implement design control.
  • Support project leads in risk monitoring and documentation.
  • Support Concept of Operations (ConOps) development for advanced nuclear energy systems with unprecedented characteristics such as transport, launch, autonomous operation, etc.
  • Develop cost models for proposed and developing projects. This includes:
     Collaborating with business and marketing team to align costs with business case and finance planning.
     Working with engineering team to ensure comprehensive cost model coverage across SSCs and ConOps.
     Performing projections for Non-recurring Engineering (NRE), Overnight Cost and Levelized Cost of Energy (LCOE).
     Extending cost projections from First-of-a-Kind (FOAK) to Nth-of-a-Kind (NOAK) analysis.
     Gathering price data and soliciting quotes.
     Tracking and documentation of assumptions, versions, and change control.
  • Perform all work under X-energy quality assurance requirements, which conform to Canadian, Nuclear Regulatory Commission (NRC), and regulatory requirements from other U.S. government agencies.
  • Write and critically review technical reports.
  • Perform other duties as assigned by manager.

Minimum Education/Qualifications

  • Bachelor’s degree in a STEM discipline from a U.S. based, ABET accredited university with 5-9 years of experience or
  • Master’s and 3-4 years’ experience of MBSE, preferably in a hardware-based industry with strict workflow and quality assurance standards (e.g., nuclear, aerospace, automotive).
  • Experience using systems integration software such as GENESYS or CORE preferred.
  • Experience with risk management and risk tracking preferred.
  • Experience in developing cost models and understanding of finance plans preferred.
  • Proficiency in written and oral reporting, communication, and presentation.
  • Familiarity with NQA-1, ISO 9001, AS9100, or equivalent quality control system.
  • Ability to obtain and to maintain US security clearance is preferred.

Location: Rockville, MD
Work Site Expectations: Onsite, Hybrid (3-5 days per week in company office)
Travel Expectations: as needed for project meetings
Job Classification: Full-time, Exempt
Hours: 8:00am-5:00pm, Mon-Fri

We are looking to fill this position immediately.

An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

X Energy, LLC participates in E-Verify. Please visit the links below for more information about E-Verify and the protection of your Right to Work.

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