Jobs in the United States

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Added 8 mins ago
Controls Engineer
Valknut Automation
Lake Orion, MI
Set up, tune, and commission motion control systems, including servo drives, VFDs, and related hardware for precise positioning and speed control.
Added 8 mins ago
Robotics Engineer
Valknut Automation
Lake Orion, MI
As a Contract Robotics Engineer, you will design, develop, and implement robotic systems tailored to complex industrial automation requirements. Youll be responsible for integrating…
Added 36 mins ago
ES
Senior Staff Applications Engineer
Elevate Semiconductor
San Diego, CA
- $150,000 to $180,000 USD / year
…product guides, application notes and other material to support integration of these devices into customer…
Added 36 mins ago
ES
Senior Applications Engineer
Elevate Semiconductor
San Diego, CA
- $110,000 to $130,000 USD / year
…product guides, application notes and other material to support integration of these devices into customer…
Added 36 mins ago
ES
Applications Engineer
Elevate Semiconductor
San Diego, CA
- $85,000 to $100,000 USD / year
…product guides, application notes and other material to support integration of these devices into customer…
Added 39 mins ago
Principal Engineer, Electrical
Blue Bird Brand
Fort Valley, GA
Reporting to the Senior Director of Electrical Engineering, the Principal Design Engineer, Electrical serves as a technical authority for vehicle electrical/electronic architecture,…
Added 1 hour ago
Network Operations Manager
Jobgether
Remote, United States
Design, review, and approve advanced network architectures and configurations, considering infrastructure requirements, hardware and software technologies, business continuity, disaster…
Added 2 hours ago
Staff Safety Systems Engineer (Redondo Beach CA)
CORP-Corporate Office
United States
Collaborate with systems, software, hardware, integration/test, and reliability teams to ensure safety considerations are incorporated into design decisions and verification plans.
Added 2 hours ago
OR
Hardware Engineer
Orchard Robotics
San Francisco, CA
- $100,000 to $170,000 USD / year
We’re hiring a Hardware Engineer to design, build, and improve Orchard’s agricultural camera systems. Working closely with our Hardware Lead, you’ll take ownership of mechanical CAD and…
Added 2 hours ago
Senior Firmware Equipment Engineer
Bachmann Chemical and Engineering
Torrington, CT
Support integration with electronics, motion controls, I/O, and networked machine-to-machine systems.
Added 3 hours ago
Senior Linux System Administrator - 306502
Delaware Nation Industries
Dahlgren, VA
Administer, engineer, optimize, and maintain enterprise Linux systems and services across multiple security levels and operational environments.
Added 3 hours ago
DN
Cybersecurity System Engineer-306341
Delaware Nation Industries
Alexandria, VA
- $140,000 to $145,000 USD / year
Systems Integration Engineer IV is responsible for the design, development, and implementation of security and monitoring technology solutions in support of a federal agency's…
Added 4 hours ago
Senior DevOps
KēSTA I.T.
Remote, United States
…team in Spain. The role takes direction from the principal engineer and works in a fully remote, highly self-directed way. The first priority is getting up to speed on existing systems,…
Added 6 hours ago
O
Member of Technical Staff, Forward Deployed Engineer
Odyssey
Palo Alto, CA
- $164,800 to $508,000 USD / year
…understand problems that cannot be solved with conventional software, translate those problems into research questions, and build working systems around Odyssey’s…
Added 6 hours ago
TT
Robotics Software Engineer
True Talent Solutions Partners
Watertown, MA
- $130,000 to $180,000 USD / year
- Hands-on experience building and shipping software for production robots or other physical systems, ideally involving manipulation, robotic arms, or autonomous hardware.
Added 7 hours ago
Sr Cyber Defense Sys Engineer
Constellation
Kennett Square, PA
…deploys, maintains, reviews, and administers the infrastructure hardware, software, and documentation that are required to effectively manage network defense. Enables the Cyber SOC to meet…
Added 8 hours ago
Electrical Hardware Engineer, AI Satellites (Starmind)
SpaceX
Bastrop, TX
…the intersection of electrical, mechanical, thermal analysis, software, and networking engineering that enables orbital compute capability. Challenges range from high-speed digital…
Added 8 hours ago
PG
Robotics Software Engineer – Motion Planning
Premier Global Links
San Francisco · San Francisco, CA
- $148,000 to $230,000 USD / year
Premier Global Links LLC is seeking a talented Robotics Software Engineer for an innovative technology company developing advanced AI-powered robotics systems for life sciences and…
Added 8 hours ago
VR
Electrical Engineer
Verne Robotics
San Francisco, CA
- $140,000 to $250,000 USD / year
We’re looking for an Electrical Engineer to design, build, and validate the electronics that power Verne’s robots. You’ll own electrical systems from requirements and schematics through PCB…
Added 9 hours ago
AT
Infrastructure Server Engineer (Top Secret)
Apex Technology, Inc.
Los Angeles, CA
- $150,000 to $250,000 USD / year
Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of…
Added 9 hours ago
AT
IT Engineer (Active Top Secret)
Apex Technology, Inc.
Los Angeles, CA
- $150,000 to $250,000 USD / year
Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of…
Added 9 hours ago
C
Test and Evaluation Engineer II - Data Analyst
Credence
Aberdeen Proving Ground, MD
- $110,000 to $150,000 USD / year
Support hardware and software component, subsystem, system-level development, compatibility, acceptance, functional, integration, qualification, field, environmental, and stress-screening…
Added 9 hours ago
Aircraft & Store Integration Engineer
Credence
Eglin Air Force Base, FL
Credence has an immediate need for a Aircraft & Store Integration Engineer supporting the Air Force Life Cycle Management Center Air Dominance Division (AFLCMC/EBA) at Eglin AFB, FL. This…
Added 9 hours ago
Avionics Engineer B-2 (WBZ) 01.6.14 & 01.6.28
Credence
WPAFB, OH
Serve as an Avionics Integration Engineer with emphasis on tactical data link systems, position location, display systems, digital interphone systems, and identification capabilities for…
Added 9 hours ago
Senior Program Manager F-16 WAM (Top Secret)- 211
Credence
WPAFB, OH
Assist to explore software development and integration, definition of scope, and selection of problems for investigation.

Pacific Fusion

Senior Mechanical Engineer

San Leandro, CA, United States

$138,100 - $207,100 USD

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Job details

Pay: $138,100 - $207,100 USD
Education: Bachelor’s degree
Experience: 5+ years of experience as a Mechanical Engineer, ideally with exposure to complex, multi-disciplinary systems.
Posting language: English
Posted: Nov 5, 2026

Original job description

About Pacific Fusion

Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy.

We are rapidly designing and building a pulser-driven inertial fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems.

Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders.

Why This Role Matters

Pacific Fusion is seeking an exceptional Senior Mechanical Engineer to help create the path to commercial fusion energy. You will help with the design, analysis, integration, and validation of mechanical systems and components across our advanced fusion energy platform. This role sits at the intersection of precision engineering and first-of-kind technology, demanding both deep technical expertise and the creative problem-solving mindset needed to tackle challenges no one has solved before. You will lead collaborative projects, mentor junior engineers, and play a vital role in driving our overall development effort.

What You'll Do

Develop innovative mechanical designs for complex engineering problems across our fusion systems, from vacuum vessels and structural assemblies to diagnostics hardware and experimental fixtures.
Lead design changes and improvements, owning components from concept through fabrication and test.
Work closely with vendors and manufacturers to ensure designs are practical, cost-effective, and manufacturable.
Perform mechanical analysis - including stress, thermal, and dynamic loading - to validate designs against requirements.
Conduct and participate in design reviews, providing critical feedback to improve system performance and reliability.
Coordinate with multidisciplinary teams spanning plasma physics, pulsed power, electrical, software, and manufacturing engineering to deliver integrated system-level designs.
Oversee the creation of detailed design documentation, drawings, and specifications.
Participate in risk assessments and develop mitigation strategies for novel engineering challenges.
Stay current with relevant advancements in mechanical design, materials, and manufacturing technologies.

What You Bring

Bachelor's degree in Mechanical Engineering required; Master's or PhD is a plus.
5+ years of experience as a Mechanical Engineer, ideally with exposure to complex, multi-disciplinary systems.
Proficiency in CAD software (Creo, SolidWorks, or equivalent) and strong 3D modeling habits.
Experience with Finite Element Analysis (FEA) for structural, thermal, or dynamic applications.
Proven track record of taking mechanical designs from concept through fabrication and test.
Strong understanding of manufacturing processes and design for manufacturability (DFM).
Excellent leadership skills with the ability to mentor and guide junior engineers.
Hands-on experience in laboratory or prototype environments - comfortable with rapid iteration and ambiguity.
Excellent written and verbal communication skills, including the ability to communicate trade-offs clearly across disciplines.

Bonus Points

Experience in fusion, plasma physics, accelerator physics, defense, or other high-consequence technical environments.
Familiarity with vacuum systems, cryogenics, high-voltage hardware, or pulsed power components.
Exposure to large-scale structural systems, pressure vessels, or custom capital equipment.

Pay Range:

$138,100 - $207,100 USD

TOTAL COMPENSATION AND BENEFITS FOR ELIGIBLE EMPLOYEES

💰 Industry-Competitive Salary
🚀 Equity Plan
🏦 6% Employer 401k Matching
🌴 Generous Paid Time Off (including sick leave, vacation, paid family leave)
🩺 Medical, Dental, and Vision insurance

Actual base salary offered will be determined by: experience, skills, and work location. This range is for base salary, our total compensation includes equity and benefits. We welcome you to apply even if your expectations are outside our listed range.

EQUAL OPPORTUNTITY

Pacific Fusion is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Pacific Fusion is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures and throughout employment. If you need assistance or any accommodation, please let us know.

U.S. EXPORT CONTROL COMPLIANCE

This position may require access to information or technology that is subject to U.S. export control laws, such as ITAR or EAR. Under these regulations, we are required to ensure that such access is provided only to individuals who are classified as 'U.S. Persons.'This status includes U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.

RECRUITING AGENCIES

Pacific Fusion does not accept unsolicited resumes from recruiters or employment agencies without a fully executed recruitment agreement in place. In the absence of such agreement, Pacific Fusion reserves the right to pursue and hire any candidates without an obligation to pay fees. Agencies are requested not to contact Pacific Fusion hiring managers or employees regarding recruiting services.

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