Jobs in the United States

25+ jobs

Save this search

Added just now
Quality Engineer
Ralliant
Elizabethtown, NC
Working closely with cross-functional teams, including product management, production, development, and operations, to align quality objectives and ensure a shared understanding of…
Added 1 min ago
Software Engineer I
Rocket Lab Corporation
Pasadena, CA
Based onsite at Rocket Lab Robotics in Pasadena, CA, the Software Engineer I - Robotics will develop software for robotic platforms, motion-control systems, sensing systems, machine…
Added 3 mins ago
Senior Algorithm Engineer
i3 Assembly
Boxborough, MA
The Senior Algorithm Engineer is responsible for designing, developing, optimizing, and deploying advanced algorithms that support the organization's products, systems, and technologies.…
Added 4 mins ago
Senior Radiation Effects Engineer
Cosmic Shielding Corporation
Huntsville, AL
Develop qualification testing guidelines and reporting standards.
Added 6 mins ago
Software Engineer 2
U.S. Bank National Association
Earth City, MO
This position will be responsible for the analysis, design, testing, development and maintenance of best in class software experiences. The candidate is a self-motivated individual who can…
Added 7 mins ago
Process Engineer
UW Interco, LLC
Louisville, KY
Improve equipment performance related to mechanical, pneumatic, robotic and other systems. This includes the startup, testing, and field modifications to new and existing equipment
Added 7 mins ago
Operations and Customer Quality Engineer
Applied Materials
Austin, TX · Austin
Designs and implements methods and procedures for inspecting, testing, and evaluating the precision and accuracy of products and/ or production equipment.
Added 8 mins ago
Senior Project Engineer – Antenna Systems (IRAD)
Communications and Power Industries, Inc.
Plano, TX
We are seeking a technically strong Senior Project Engineer to lead the execution of Internal Research & Development (IRAD) projects focused on advanced antenna systems. This role combines…
Added 9 mins ago
Staff NPI Engineer - Johnson and Johnson MedTech, Circulatory Restoration
SHOCKWAVE MEDICAL INC. Legal Entity
Santa Clara, CA
The Staff NPI Engineer will utilize technical skills in the development of innovative products to treat peripheral, coronary, and heart valve diseases. The Staff NPI Engineer will serve as…
Added 10 mins ago
Electrical Engineer - Motor Drives, Controls & Systems
The AMES Companies, Inc.
Smyrna, TN
Drive DOE airflow testing strategy, electrical efficiency validation, and regulatory compliance.
Added 10 mins ago
Electrical Engineer III
Western/Scott Fetzer Company
United States
…supporting both embedded and PC applications. We value cross-functional collaboration, continuous improvement, and technical excellence, working closely with manufacturing, quality, sales,…
Added 12 mins ago
Quality Engineer
Ralliant
Elizabethtown, NC
Working closely with cross-functional teams, including product management, production, development, and operations, to align quality objectives and ensure a shared understanding of…
Added 12 mins ago
Engineer - IAM
Target Enterprise Inc
NCD-0375 Brooklyn Park, MN
Wake up every morning and KNOW you are making a difference! As an Engineer in IAM, you serve as a technical specialist delivering the engineering that powers the product to securely enable…
Added 12 mins ago
Mechanical Engineer
Cubic Secure Communications, LLC
San Diego, CA
Support prototype development, integration, testing, troubleshooting, and validation activities.
Added 12 mins ago
AC
Application and Integration Support Engineer - Remote
American Cancer Society, Inc.
Remote, United States
- $73,000 to $85,000 USD / year
Assists in planning and executing release cycles by coordinating with cross-functional teams, validating build integrity, performing pre- and post-deployment testing, and documenting…
Added 13 mins ago
Commissioning Agent
BGIS
Remote, United States
Perform construction observations and develop functional test plans.
Added 15 mins ago
Firmware Test Engineer
Cricut
South Jordan, UT
Cricut is seeking a versatile Firmware Test Engineer (also known in other industries at a "Systems Verification Engineer") who will be responsible for testing and qualifying Firmware and…
Added 15 mins ago
Senior Platforms Engineer, FLOWCAL/Quorum
Marathon Petroleum Company LP
Denver, CO · Canonsburg, PA · Houston, TX · Findlay, OH · San Antonio, TX
This Senior Platform Engineer position supports the Measurement, Accounting & Scheduling (MAS) team as a subject matter expert for FLOWCAL, TESTit, and the broader Quorum application…
Added 16 mins ago
CF
Senior Realtime Controls Software Engineer
Commonwealth Fusion Systems
Devens, MA
- $107,000 to $160,000 USD / year
Join the power movement as a Senior Algorithms and Simulation Software Engineer
Added 17 mins ago
Senior Software Engineer
Cariloop
United States
The purpose of a Senior Software Engineer is to design and build quality software for our Cariloop caregiving platform. Using strong technical execution and collaboration skills, they…
Added 17 mins ago
A
Software Engineer in Test (SET)
Allegiant
Las Vegas, NV
- $80,400 to $97,900 USD / year
The Software Engineer in Test (SET) is a hands on quality engineering contributor responsible for building, maintaining, and executing automated solutions that ensure the reliability,…
Added 20 mins ago
Senior Engineering Project Manager - iCloud / Apple Services Engineering
Apple
Seattle, WA
You'll coordinate cross-functional teams, gather requirements, and drive the release process for shipping server software at scale. You'll deliver clear, timely status updates to partner…
Added 22 mins ago
Electrical Engineer
Actalent
Westlake, OH
Review customer requirements and materials to translate functional needs into robust electrical designs and control strategies.
Added 23 mins ago
Hardware Design Engineer
Cisco Systems, Inc.
Milpitas, CA
…optimizing for performance and user experience. Our diverse, cross-functional team thrives in a collaborative environment where we turn complex concepts into reliable, high-quality hardware…
Added 26 mins ago
SS
Cloud Computing Engineer Principal
Syms Strategic Group, LLC (SSG)
Shepherdstown, WV
- $109,623 to $126,790 USD / year
Syms Strategic Group (SSG) is seeking a talented Cloud Computing Engineer Principal (MCCF-Healthcare Systems)

Commonwealth Fusion Systems

Senior Realtime Controls Software Engineer

Devens, MA, United States

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

Apply About employer

Applications open in a new tab.

Job details

Pay: $107,000 to $160,000 USD / year
Experience: 7+ years relevant experience
Posting language: English
Posted: Nov 9, 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 Senior Algorithms and Simulation Software Engineer

In this role you will be responsible for the design and implementation of state estimation and control algorithms, plus models and simulation frameworks necessary to verify those algorithms. Your algorithms will be used in critical real-time applications in the SPARC project, as well as related projects.

As a member of the Software Engineering team, you will be a hands-on technical contributor. You will be a champion of writing excellent quality, production-ready code for mission-critical real-time systems. You will collect functional requirements from customers and produce software solutions to meet these requirements.

You will work with a variety of engineers to integrate your software into software testbeds, hardware testbeds, and the production tools. You will also contribute to the broader software ecosystem to improve tooling and processes used across the company.

What you'll do:

Develop mission-critical control algorithms
Develop software to communicate with hardware sensors/actuators
Develop software infrastructure to operate Hardware-in-the-Loop (HITL) and software-only testbeds
Develop simulation models and model infrastructure for both real-time and off-line (high fidelity) simulations
Develop offline data analysis tools
Help define and execute end-to-end and other integrated test cases and test plans to validate SPARC control software

What we’re looking for:

Bachelor's degree in a relevant engineering field (computer science, computer engineering, electrical engineering, industrial engineering, etc.)
7+ years relevant experience
Professional experience writing real-time state estimation and control algorithms
Experience with modern software development lifecycle practices (CI/CD, git version control, unit testing, integration testing, etc)
Proficiency with Python
Proficiency with at least one real-time control language (C++, Rust, etc)

Bonus points for:

Experience with Hardware-in-the-Loop testbeds and software-only testbeds for validating control software
Experience writing models to validate software
Familiarity with Linux
Familiarity with general networking (IP/UDP)

Must-have Requirements:

Perform activities such as typing, standing, sitting, etc. for extended periods of time
Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
Willingness to occasionally travel or work required nights/weekends/on-call

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.

Apply About employer

Report this job