Jobs in the United States

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Added 11 mins ago
Software Engineer-Developer, Phantom Works Weapons (Associate or Experienced)
The Boeing Company
Saint Charles, MO
+ Supports software system integration and test
Added 11 mins ago
Senior Software Engineer - Lab Provisioning & Integration
The Boeing Company
Berkeley, MO
The Boeing Company is currently seeking a Senior Software Engineer - Lab Provisioning & Integration in Berkeley, MO .
Added 24 mins ago
Principal/Sr Principal Software Engineer Guidance Navigation Control (GNC)
Northrop Grumman
Beavercreek, OH
We are looking for you to join our team as a Principal or Senior Principal Software Engineer - Guidance Navigation Control (GNC) based out of Beavercreek, OH . As a Software Engineer at…
Added 29 mins ago
IT Architect
BIG TEX HOLDING INC
Addison, TX
…employees work alongside AI, delivers AI agents that streamline the software development lifecycle, and supports business teams in building their own AI tools within approved…
Added 38 mins ago
Software Developer – Entry Level
CGI
Lafayette, LA
As an Entry Level Software Developer, you’ll work with cross functional teams to design, build, test, and enhance technology solutions that address client needs. You’ll gain hands‑on…
Added 40 mins ago
PG
Software Engineer
Publicis Groupe Holdings B.V
Westminster, CO · Chicago, IL
- $73,500 to $136,500 USD / year
We’re looking for an experienced Software Engineer to help us build innovative and secure data solutions for social media, search, and digital ads within a Big Data environment. In this…
Added 54 mins ago
SkillBridge - Network / Principal Network Communications Engineer
Northrop Grumman
Ellsworth AFB, SD
Perform/support review and analysis of supplier design data and definition of functional test requirements including acceptance, qualification, and system integration.
Added 57 mins ago
Senior Full Stack Developer, Agentic Engineering
FullBloom
Statewide, PA
This role is hired to build agent-first. The Senior Full-Stack Developer, Agentic Engineer is a founding member of a small, new engineering squad building the next generation of…
Added 2 hours ago
Software Developer – Entry Level
CGI Technologies and Solutions, Inc.
Lafayette, LA
As an Entry Level Software Developer, you’ll work with cross functional teams to design, build, test, and enhance technology solutions that address client needs. You’ll gain hands‑on…
Added 2 hours ago
Test Conductor
Northrop Grumman
Gilbert, AZ
Our Tactical Space Systems Division Integration and Test group is seeking an Test Conductor 2 (Integration and Test) to join our team of qualified and diverse individuals in Gilbert, AZ.…
Added 2 hours ago
*Guidance Navigation Control (GNC) Engineers - Level 3 - TS Cleared (AHT)
Northrop Grumman
Gilbert, AZ
Experience with performing spacecraft GNC design, analysis, Hardware (HW) and Integration & Test (I&T), or flight operations.
Added 2 hours ago
AE
Campus Undergraduate Summer Internship Program - 2027 AI Engineer, Enterprise Technology Services- Phoenix, AZ
American Express
Phoenix, AZ
- $24.05 to $63 USD / hour
At American Express, we empower future technologists to learn, innovate, and make an impact from day one. As an AI Engineer Intern in Enterprise Technology Services, you’ll join a 10-week…
Added 2 hours ago
Scientist, Systems Engineering (Chief Systems Engineer): Sign-on bonus ($50k max) 1
L3Harris Technologies
Fort Wayne, IN
Lead integration and test of electro-optical/infrared systems and related hardware/software
Added 2 hours ago
Software Control Engineer - IS (EE26131)
TMEIC Corporation Americas
Roanoke, VA
Develop and test PC/PLC software control solutions for industrial systems applications that meet client specifications and fulfill project requirements
Added 2 hours ago
EA
Software Engineer - AI & Workflow Automation
Elevation Autism Center
Atlanta, GA
- $40 to $60 USD / hour
Software Engineer – AI & Workflow Automation | $40–$60/hour | Hybrid – Alpharetta, GA
Added 2 hours ago
Senior Mechanical Engineer with CFD Expertise
Applied Research Associates, Inc.
Panama City, FL
ARA’s Engineering Science Division is seeking an experienced mechanical engineer with computational fluid dynamics (CFD) expertise to support the design, development, prototyping,…
Added 2 hours ago
Senior Specialist, Integration & Test Engineer
L3Harris
Melbourne, FL
Job Title: Senior Specialist, Integration & Test Engineer
Added 2 hours ago
M
Software Engineer II
Microsoft
CA · Mountain View, CA · Mountain View
- $102,100 to $219,200 USD / year
We are looking for a Software Engineer II to join our team. Our Global Secure Access Datapath team builds cutting-edge network security solutions that enable enterprises to protect their…
Added 2 hours ago
Digital Signals Processing (DSP) Engineer
CACI International
Sarasota, FL
You will work with a fast-paced, technically diverse team that develops and supports infrastructure for software-based signal processing applications. You will participate in full IT…
Added 2 hours ago
M
Principal Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
We are looking to welcome a Principal Software Engineer to a group of innovative, energetic and diverse engineers on the CoPilot Runtime Platform team, which is the engineering organization…
Added 3 hours ago
M
Senior Emulation Engineer
Microsoft
CA · TX · WA · OR · NC · Mountain View, CA · Austin, TX · Redmond, WA · Hillsboro, OR · Raleigh, NC · Mountain View · Austin · Redmond · Hillsboro · Raleigh
- $119,800 to $261,000 USD / year
…product engineering teams. We are seeking a Senior Emulation Engineer who can partner across these disciplines to develop the verification environments and test cases that bring these…
Added 3 hours ago
O
Lead Software Engineer - City
OKC
OKLAHOMA CITY, OK · Oklahoma City, OK
- $39.52 to $60.39 USD / hour
The Lead Software Engineer is responsible for being a lead technical resource on a team of software engineers and developers and ensuring the successful delivery of high-quality software…
Added 3 hours ago
Mechanial Engineer (R&D Engineer 2)
Los Alamos National Laboratory
Los Alamos, NM
…Group. The Group is seeking an early to mid-level R&D Mechanical Engineer to work closely with a diverse group of engineers, technologists and technicians on initiation train design, high…
Added 3 hours ago
Systems Engineer (R&D Engineer 2 or 3)
Los Alamos National Laboratory
Los Alamos, NM
…with new system installation and commissioning. The Systems Engineer will help to collaborate and coordinate LANSCE end station modernization efforts across all engineering teams and ensure…
Added 3 hours ago
R&D Engineer 3
Los Alamos National Laboratory
Los Alamos, NM
Los Alamos National Laboratory is seeking an experienced mechanical engineer to join the Space Instrument Realization Group (ISR-5). In this role, you will lead the design, analysis,…

Commonwealth Fusion Systems

Diagnostics Mechanical Engineer

Devens, MA, United States

$107,000 to $160,000 USD / year

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Job details

Pay: $107,000 to $160,000 USD / year
Experience: 5+ years of relevant experience designing and delivering mechanical systems
Posting language: English
Posted: Nov 4, 2026

Original job description

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.

If that’s you and this role fits, we want to hear from you.

Join the power movement as a Diagnostics Mechanical Engineer

Commonwealth Fusion Systems is assembling the high-field SPARC tokamak, which aims to be the first magnetic fusion device to achieve net fusion energy, and is predicted to be able to achieve high gain and fusion power up to 140 MW. We are completing the design and have begun the assembly and installation of diagnostic systems that will be used to control the plasma and deliver the scientific data necessary to complete the design of ARC. These include approximately 40 sub-systems covering magnetics, interferometry, neutral pressure, x-ray to visible spectroscopy, camera imaging, bolometry, neutrons, Thomson scattering, electron cyclotron emission, reflectometry, Langmuir probes and structural temperature and strain sensing. A more detailed overview can be found at: https://pubs.aip.org/aip/rsi/article/95/10/103518/3317155.

CFS is looking to grow the SPARC team in order to complete the mechanical design and integration of these diagnostic systems as they move through design closeout, analysis, procurement, test, and installation. At present we’re finalizing the design and starting assembly for many of the front-end, in vacuum measurement devices and are looking to add multi-faceted support to help carry those designs across the finish line, take on engineering challenges associated with their build and test, and help design the structural components associated with ex-vessel data transmission to our diagnostic labs. Candidates will work as part of an integrated diagnostic team along with fusion scientists and other engineers to demonstrate net energy from a tokamak for the first time. CFS encourages applications from both senior and early career engineers and those interested in cross-industry career changes to help us build a diverse team to meet our mission goals.

What you'll do:

Shepherd SPARC diagnostic sub-systems through design closeout, test, and procurement, working with a team of scientists, designers, analysts and engineers
Integrate technical input from experts on the team to ensure diagnostic designs will survive SPARC’s harsh environments and be usable to achieve SPARC’s scientific mission goals
Coordinate with manufacturing engineers to align on build and test strategy for complex integrated systems, and support builds in the field to maintain quality and speed
Contribute to a strong safety culture

What we're looking for:

Bachelor’s degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)
5+ years of relevant experience designing and delivering mechanical systems
Demonstrated examples of delivering cradle-to-grave mechanical design with nuanced environmental or performance requirements
Experience designing for manufacturing and assembly, and collaborating with partners to oversee or carry out integrated builds
Bias toward action, and a balance of engineering intuition and technical rigor that allows for robust, simple designs to be generated with speed
First principles based approach to engineering and ability to understand concepts and tradeoffs that bridge engineering and physics
Strong communication skills to gather inputs and distribute information across several partner teams

Bonus points for:

Experience with Siemens NX, Teamcenter, or Ansys as CAD, PLM, and analysis tools
Experience with software development, particularly in Python
Experience designing large equipment requiring lifting/rigging tools to assemble
Experience with design of systems for exposure to high stress, UHV, high temperature, high magnetic field, and/or radiation environments

Must-have requirements:

Ability to occasionally lift up to 50 lbs
Perform activities such as climbing, typing, standing, or sitting for extended periods of time
Willingness to travel or work required nights/weekends/on-call occasionally
Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

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More about this job

Skills

Procurement
Mechanical systems
Assembly
Bridge engineering
Communication skills
Siemens NX
Siemens Teamcenter
PLM
Software development
Python
Heavy lifting
Regulatory compliance

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