Jobs in the United States

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Added 1 min ago
Senior Purchasing Manager
Marriott
FORT LAUDERDALE, FL
Uses computers and computer systems (including hardware and software) to program, write software, set up functions, enter data, or process information.
Added 1 min ago
As-Built Technician I
Bowman Consulting Group, Ltd.
Tempe, AZ
Review construction orders, inventory lists, and project tracking software to confirm accuracy and consistency.
Added 2 mins ago
MV
Inspector
Mountain View Electric Association, Inc.
Falcon, CO
- $58.62 to $63.31 USD / hour
Attend weekly construction meeting with the engineering department.
Added 2 mins ago
SI
Forward Deployed Engineer Specialists (FDE) (Mid/Senior Level)
Salesforce, Inc.
NY
- $148,500 to $285,800 USD / year
You have 3+ years (6-10 years for Senior levels) of software engineering or technical delivery experience, with at least one production system you'd be proud to walk us through - ideally in…
Added 3 mins ago
Hardware Engineer, Networking Switch Bring Up and Rack Level Performance Validation
Advanced Micro Devices, Inc
Santa Clara, CA
This is a highly collaborative environment where you’ll work alongside experts across hardware, software, power, thermal, signal integrity, and manufacturing teams, as well as engage…
Added 3 mins ago
Devops Platform Engineer
Advanced Micro Devices, Inc
San Jose, CA
6+ years of experience in software engineering, DevOps, SRE, cloud infrastructure, or platform engineering.
Added 3 mins ago
Sr. Director, Client & Personal AI System Innovation
Advanced Micro Devices, Inc
Austin, TX
This role will lead a team of architects, strategists, and ecosystem experts while partnering closely with engineering, software, product management, and business teams across AMD. You will…
Added 5 mins ago
Forward Deployed Engineer
Safe Security
Remote, United States
Methodology & Rigor: We don’t wing it. From Force Management and MEDDICC in sales to data-driven sprints in engineering, we rely on proven frameworks to stay disciplined and predictable.
Added 9 mins ago
Quality Assurance Analyst
Web Team Associates, Inc.
Phoenix, AZ
Evaluate and test software changes according to user requirements using established tools and guidelines.
Added 10 mins ago
Spa Concierge
Marriott
Avon, CO
Schedule services for individuals and large groups using spa/salon reservations software system. Call guests to confirm scheduled services. Answer questions about available services. Update…
Added 11 mins ago
Senior API & Integration Engineer
Vast Bank
Remote, United States
Required: Seven or more years of software engineering or systems integration experience, including at least three years designing and supporting production APIs and integrations.
Added 15 mins ago
Software Engineer, Bugbot
SpaceXAI
New York, NY · San Francisco, CA
We're hiring a Software Engineer to work on Bugbot. Bugbot reviews pull requests, catches bugs, suggests improvements, and is becoming a critical part of how engineering teams ship…
Added 15 mins ago
Software Engineer, Compute Infra
SpaceXAI
San Francisco, CA · New York, NY
- Bachelor's degree in computer science, engineering, math, or scientific discipline; OR 2+ years of professional experience building software in lieu of a degree
Added 15 mins ago
Software Engineer, Client Infrastructure
SpaceXAI
San Francisco, CA
- Bachelor's degree in computer science, engineering, math, or scientific discipline; OR 2+ years of professional experience building software in lieu of a degree
Added 16 mins ago
ASIC Design Engineer, Cloud TPU
Google
Sunnyvale, CA
Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, a related field, or equivalent practical experience.
Added 16 mins ago
Technical Program Manager III, Tooling Automation and Analytics, Google Cloud
Google
Sunnyvale, CA
…choices and budget. To accomplish this, you will work with SRE, software engineering, and Google finance teams to deliver solutions to very complex capacity…
Added 16 mins ago
Staff Software Engineer, AI/ML, Cloud IAM, Dataset and Model Training
Google
Sunnyvale, CA
8 years of experience in software development.
Added 18 mins ago
EG
Financial Analyst
Eliassen Group
Dover, DE
- $50 to $60 USD / hour
…forecasting, variance analysis, and management reporting for Engineering, Product, Design, and Research. The role will partner closely with Accounting, Engineering, Procurement, and the…
Added 19 mins ago
Senior Test Automation Engineer - Local to Pittsburgh, PA
CGI
Pittsburgh, PA
We are seeking an experienced Senior Test Automation Engineer with 8+ years of experience in software quality engineering, test automation, and enterprise application testing. The ideal…
Added 19 mins ago
Sr Fullstack Developer
CGI
Pittsburgh, PA
CGI is seeking an experienced Full Stack Java Software Developer at the Expert level to provide technical leadership in the design, development, modernization, and delivery of complex…
Added 19 mins ago
Release Management Analyst-- Junior
CGI
Fairfax, VA
The Junior Software Release Management Analyst supports the NMS Software Release Manager within the Systems Engineering organization in the planning, coordination, and execution of software…
Added 19 mins ago
Sr Fullstack Developer
CGI
Pittsburgh, PA
Are you an experienced software developer who enjoys building robust, scalable applications and providing technical leadership? CGI is seeking a Full Stack Java Software Developer at the…
Added 19 mins ago
OT Security Engineer
CGI
Pittsburgh, PA
…troubleshooting, and outage planning. Work alongside operations, controls engineering, OT security, IT, maintenance teams, and vendors, following clear site procedures and established…
Added 19 mins ago
Software Engineer in Test
CGI
Cary, NC
We CGI is seeking an experienced Software Engineer in Test and Automation to help teams build and deliver reliable, scalable applications. In this role, you will design reusable testing…
Added 22 mins ago
Sr Engineering Manager
MED Medtronic Inc
Tempe, AZ
Medtronic’s Microelectronic Solutions location in Tempe, Arizona is seeking a Sr Test Engineering Manager that will accept the challenge of developing and leading a highly effective team…

Commonwealth Fusion Systems

Senior Realtime Controls Software 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: 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 real-time control algorithms, hardware communication, plus models and simulation frameworks necessary to verify those algorithms. Your algorithms will be used in critical, hard real-time applications in the SPARC project, as well as related projects. Your algorithms will generally be implemented in C++ and run as a Linux application.

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.

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More about this job

Skills

Data analysis
Computer science
Computer engineering
Electrical engineering
Industrial engineering
Estimating
Software development
CI/CD
Unit testing
Python
C++
Rust
Linux
Regulatory compliance

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