SECTION I · THE BRIEF
Brief #07261Updated 13 AUG 2026LONG BEACH, CALever
Employbl Company Profile

Senior Mechanical Engineer

Maritime nuclear energy startup building small modular reactors on floating barges to deliver clean power to ports and grid-connected communities via subsea cables.

Location
Long Beach, CA
Company size
1–10
Posted
1mo ago
Via
Lever
Section II · Full ProfileFree with an account
  • 01Comp band & equity packageLocked
  • 02Seniority & experience requirementsLocked
  • 03Interview process & rubricLocked
  • 04Hiring manager & team contextLocked
  • 05Growth trajectory in this roleLocked
  • 06Offer & decision timelineLocked

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Senior Mechanical Engineer

Bluecore Energy· Long BeachView company profile


Job title
Senior Mechanical Engineer
Job location
Long Beach
Job description

Our Mission Is Simple: Democratize Access To Clean Energy

Welcome to BlueCore Energy! We are on a relentless mission to democratize access to clean energy. By designing and building advanced floating Pressurized Water Reactors (PWRs) on barges right here in Long Beach, CA, we are bringing scalable, clean, and reliable power to the world. Joining our team means getting in on the ground floor of a revolution in marine small modular reactors (SMRs). If you are passionate, driven, and ready to tackle some of the most exciting challenges of our time, we want you on our team!

Our Values

  • Humility — We hold strong opinions loosely, say "I don't know," ask for help early, and let the best idea win regardless of who it came from.

  • Inclusivity — The best engineering comes from many perspectives. We build a team where everyone is heard, and we mean it.

  • Pragmatism — We solve the real problem in front of us, reuse what already works, and value a tested answer over an elegant one.


About the Role

You'll turn analysis into hardware. You'll help run experimental testing and use the thermal-hydraulic team's analysis to size components, talk to vendors, and explore the design space. You’ll design test campaigns, create test plans and procedures, run and acquire data from experiments, and turn this knowledge into system-level designs for our production units. You'll build models in NX CAD and generate the drawings needed for components and sub-systems. This is a hands-on, collaborative role with room to grow — a great fit for someone eager to learn, comfortable asking questions, and happy to get their hands dirty in the lab and on the deck plate.

Responsibilities

  • Help plan and perform experimental testing of components and sub-systems

  • Use analysis from the thermal-hydraulics team to size components, engage vendors, and explore the design space.

  • Build and maintain NX CAD models and generate the required drawings for components and sub-systems.

  • Design with the marine environment in mind — vibration, shock, thermal cycling, corrosion, and tight volumetric constraints aboard a vessel.

  • Collaborate across nuclear, thermal, and software teams; give and receive feedback openly.

Required Qualifications & Skills

  • Bachelor's degree in Mechanical Engineering or a related field.

  • 5+ years hands-on experience with CAD (NX preferred; SolidWorks/Creo acceptable) and drawing generation, including GD&T.

  • Exposure to hardware testing, component sizing, or vendor interaction (internships/projects count).

  • A pragmatic, curious, low-ego approach to problem-solving.

Desired Qualifications & Skills

  • Experience with FEA or first-principles hand calcs to inform design.

  • Familiarity with marine, nuclear, aerospace, or other regulated hardware environments.

  • Experience shepherding a part from design → fab → test → iteration

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Bluecore Energy headquarters

Long Beach, CA

Company size

1–10 employees

Founded

2026

Total raised

$60,000,000

View company profile ↗

Funding rounds