439 Simulation jobs in the United States

Kodiak Robotics, Inc. was founded in 2018 and has become a leader in autonomous ground transportation committed to a safer and more efficient future for all. The company has developed an artificial intelligence (AI) powered technology stack purpose-built for commercial trucking and the public sector. The company delivers freight daily for its customers across the southern United States using its autonomous technology. In 2024, Kodiak became the first known company to publicly announce delivering a driverless semi-truck to a customer. Kodiak is also leveraging its commercial self-driving software to develop, test and deploy autonomous capabilities for the U.S. Department of Defense.

We are looking for a Software Engineer to join us to help design, architect, implement, and maintain our simulation capabilities.

In this role, you will:

• Integrate our simulation platform and all critical pieces of our autonomy stack
• Work with different teams and team leads to engineer novel ways of testing and evaluating our algorithms, including for edge cases and rare events
• Development of new features to improve the fidelity of our simulation results and implement novel evaluation metrics for measuring the performance of our self-driving stack
• Write maintainable, clear, and concise code
• Coordinate with our external partners to drive new features and integrate them with our internal workflows

What you'll bring:

• Strong technical background (BS, MS, PhD or equivalent professional experience) in Computer Science or a closely related engineering field
• Excellent software developer with at least 2 years of experience writing production-level C++ code
• High standards for software quality and rigor, and a testing-oriented mentality
• Good communication skills and a collaborative bent
• Proven ability to iterate quickly and work hands-on
• Desire to learn about all aspects of autonomous vehicles

Bonus points if you have:

• Hands-on knowledge of one or more autonomous vehicle simulators
• Knowledge of modern C++ (c++14 and newer) and version control systems (e.g., git)
• Practical experience in one or more fields of robotics: perception, planning, localization, modeling, control, etc.
• An interest in defining autonomy metrics and evaluation strategies
• Experience with modern DevOps

What we offer:

• Competitive compensation package including equity and biannual bonuses
• Excellent Medical, Dental, and Vision plans through Kaiser Permanente, Anthem, and Guardian (including a medical plan with infertility benefits)
• Flexible PTO and generous parental leave policies
• Our office is centrally located in Mountain View, CA
• Office perks: dog-friendly, free catered lunch, a fully stocked kitchen, and free EV charging
• Long Term Disability, Short Term Disability, Life Insurance
• Wellbeing Benefits - Headspace, One Medical, Gympass, Spring Health
• Fidelity 401(k)
• Commuter, FSA, Dependent Care FSA, HSA
• Various incentive programs (referral bonuses, patent bonuses, etc.)

Actual starting pay will be based on job-related factors, including exact work location, experience, relevant training and education, and skill level. Please note that the compensation details listed above are base salary only and do not include bonus, equity, or benefits.

California Pay Range

$175,000-$220,000 USD

Actual salary ranges will be based on job-related factors, including exact work location, experience, relevant training and education, and skill level. Your recruiter can share more about the specific salary range for the role location. Please note that the compensation details listed above are base salary only and do not include bonus, equity, or benefits.

At Kodiak, we strive to build a diverse community working towards our common company goals in a safe and collaborative environment where harassment of any kind is strictly prohibited. Kodiak is committed to equal opportunity employment regardless of race, ethnicity, religion, gender identity, sexual orientation, age, disability, or veteran status, or any other basis protected by applicable law.

In alignment with its business operations, Kodiak adheres to all relevant statutes, regulations, and administrative prerequisites. Accordingly, roles that carry more sensitive requirements may be limited to candidates that can satisfy additional scrutiny and eligibility for such positions may hinge on verification of a candidate's residence, U.S. person status, and/or citizenship status. Should the position require, and Kodiak determines that a candidate's residence, U.S. person status, and/or citizenship status necessitate an export license, bar the candidate from the position, or otherwise fall under national security-related restrictions, Kodiak will consider the candidate for alternative positions unaffected by such restrictions, under terms and conditions set forth at Kodiak's sole discretion, or, as an alternative, opt not to proceed with the candidate's application. If applicable, Kodiak may provide visa sponsorship for eligible candidates.

RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE TYPE: SAP
TRAVEL: Yes, 25% of the Time
**Description**
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.
Northrop Grumman Aeronautics Systems has an opening for a **Simulation Software Engineer** to join our team of qualified, diverse individuals within our Software organization in **Melbourne, Florida** .
Join the team to develop the next generation of software for the next generation of platforms. Support development and integration of the latest technologies - AI/ML, Quantum computing, cloud, and digital design - to impact future generation aircraft. Become part of the team that will give our war fighters the advantage over our adversaries. Bring your bold new ideas, and pioneering spirit to our team to invent the future and have some fun along the way.
**Accomplish**
In this role you will design, develop, integrate and test software for our end-user customers and businesses. Specifically, you will be responsible for the design, architecture, application development, and flight simulation. You will work with multi-disciplinary teams, such as with Systems Engineering, Cloud & Application, Test Automation, DevSecOps and Systems Test, in an Agile software development environment. Our simulation software is critical to the current and future company projects. You will analyze system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls.
**Essential Functions:**
+ Work in an innovative environment, on significantly diverse assignments, and in collaborative team settings across all levels
+ Participate in the full software development life cycle including requirements, design, implementation, qualification, and delivery of software products to our customers
+ Architect and develop applications in a simulated training environment
+ Be a part of Agile Scrum teams to develop software products for multiple software baselines
**Succeed**
The individual we seek will be self-motivated, proactive, goal-oriented to help us grow our services, become even better at what we do and will possess the following qualifications.
**Basic Qualifications:**
+ Bachelor's degree in a STEM discipline (Science, Technology, Engineering or Math) with 2 years of related engineering experience; OR a Master's degree in STEM with 0 years of experience
+ Experience with the full Software Development Life Cycle (SDLC) - software design requirements, application development, integration, testing, and deployment
+ Experience with at least one of the following programming or scripting languages: C, C++, and Python
+ Experience with two or more of the following tools: Jira, Crucible, Bitbucket, Subversion, Bamboo, Jenkins, Sonarqube, Fortify, or Coverity
+ **Must have an active DoD Secret Security Clearance or higher**
+ Must have the ability to obtain and maintain Special Access Program (SAP) clearance prior to the commencement of employment
**Preferred Qualifications:**
+ Strong understanding of C and C++ languages including templates, memory storage, and compiler/linker
+ Experience with or knowledge of Joint Simulation Environment (JSE), Distributed Interactive Simulation (DIS), or High-Level Architecture (HLA)
+ Experience with Full-Motion Flight Training Systems
+ Experience with simulated threat environments such as AFSIM or NGTS
+ Ability to collaborate with systems engineers, hardware designers and integration/test engineers to develop and maintain complex software systems
+ Excellent communication, interpersonal skills, and the ability to interface with all levels of employees and management
Primary Level Salary Range: $77,200.00 - $115,800.00
The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.
Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.
The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.
Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE TYPE: SAP
TRAVEL: Yes, 25% of the Time
**Description**
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.
If you want to put your talent, experience, and passions to use and be part of something greater, you are in the right place.
Join the team to develop the next generation of software for the next generation of platforms. Support development and integration of the latest technologies - AI/ML, Quantum computing, cloud, and digital design - to impact future generation aircraft. Become part of the team that will give our war fighters the advantage over our adversaries. Bring your bold new ideas, and pioneering spirit to our team to invent the future and have some fun along the way.
Northrop Grumman Aeronautics Systems has an opening for a Principal Simulation Software Engineer to join our team of qualified, diverse individuals within our Software organization in **Palmdale, California,** where we define possible.
**Accomplish**
In this role you will design, develop, integrate and test software for our end-user customers and businesses. Specifically, you will be responsible for the design, architecture, application development, and flight simulation. You will work with multi-disciplinary teams, such as with Systems Engineering, Cloud & Application, Test Automation, DevSecOps and Systems Test, in an Agile software development environment. Our simulation software is critical to the current and future company projects. You will analyze system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls.
**Essential Functions:**
+ Work in an innovative environment, on significantly diverse assignments, and in collaborative team settings across all levels
+ Participate in the full software development life cycle including requirements, design, implementation, qualification, and delivery of software products to our customers
+ Architect and develop applications in a simulated training environment
+ Be a part of Agile Scrum teams to develop software products for multiple software baselines
**Succeed**
The individual we seek will be self-motivated, proactive, goal-oriented to help us grow our services, become even better at what we do and will possess the following qualifications.
**Basic Qualifications:**
+ Bachelor's degree in a STEM discipline (Science, Technology, Engineering or Math) with 5 years of related engineering experience; OR a Master's degree in STEM with 3 years of related engineering experience
+ Experience with the full Software Development Life Cycle (SDLC) - software design requirements, application development, integration, testing, and deployment
+ Experience with at least one of the following programming or scripting languages: C, C++, and Python
+ Experience with two or more of the following tools: Jira, Crucible, Bitbucket, Subversion, Bamboo, Jenkins, Sonarqube, Fortify, or Coverity
+ **Must have an active DoD Secret or higher clearance.**
+ Must have the ability to obtain and maintain Special Access Program (SAP) clearance prior to the commencement of employment.
**Preferred Qualifications:**
+ Strong understanding of C and C++ languages including templates, memory storage, and compiler/linker
+ Experience with or knowledge of Joint Simulation Environment (JSE), Distributed Interactive Simulation (DIS), or High-Level Architecture (HLA)
+ Experience with Full-Motion Flight Training Systems
+ Experience with simulated threat environments such as AFSIM or NGTS
+ Ability to collaborate with systems engineers, hardware designers and integration/test engineers to develop and maintain complex software systems
**Thrive with Us**
At Northrop Grumman we are invested in the growth and well-being off all our employees. We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment.
Our Total Rewards Program offers a comprehensive employee benefits package, including a Retirement and Savings Plan, group medical, dental and vision coverage, life and disability insurance, and flexible spending accounts.
We have a new Academy which is a onboarding and professional development / employee engagement tool we've designed to support employees and their teams. A newsletter is sent out each month to keep the division apprised of upcoming events. There are three areas of focus: **Mission Education, Leadership Excellence** , and **Program Orientation.**
We have Employee Resource Groups (ERGs) that provide benefits for the member, our leaders and the company. Our ERGs offer opportunities to be a friend, be active, be a volunteer, be a leader, to be recognized and to be yourself. Every ERG is inclusive of all employees!
If you are ready to join us in defining possible, apply now.
Primary Level Salary Range: $110,300.00 - $165,500.00
The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.
Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.
The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.
Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

RELOCATION ASSISTANCE: Relocation assistance may be available
CLEARANCE TYPE: SAP
TRAVEL: Yes, 25% of the Time
**Description**
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.
If you want to put your talent, experience, and passions to use and be part of something greater, you are in the right place.
Join the team to develop the next generation of software for the next generation of platforms. Support development and integration of the latest technologies - AI/ML, Quantum computing, cloud, and digital design - to impact future generation aircraft. Become part of the team that will give our war fighters the advantage over our adversaries. Bring your bold new ideas, and pioneering spirit to our team to invent the future and have some fun along the way.
Northrop Grumman Aeronautics Systems has an opening for a Simulation Software Engineer to join our team of qualified, diverse individuals within our Software organization in **Oklahoma City, Oklahoma.**
**Accomplish**
In this role you will design, develop, integrate and test software for our end-user customers and businesses. Specifically, you will be responsible for the design, architecture, application development, and flight simulation. You will work with multi-disciplinary teams, such as with Systems Engineering, Cloud & Application, Test Automation, DevSecOps and Systems Test, in an Agile software development environment. Our simulation software is critical to the current and future company projects. You will analyze system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls.
**Essential Functions:**
+ Work in an innovative environment, on significantly diverse assignments, and in collaborative team settings across all levels
+ Participate in the full software development life cycle including requirements, design, implementation, qualification, and delivery of software products to our customers
+ Architect and develop applications in a simulated training environment
+ Be a part of Agile Scrum teams to develop software products for multiple software baselines
**Succeed**
The individual we seek will be self-motivated, proactive, goal-oriented to help us grow our services, become even better at what we do and will possess the following qualifications.
**Basic Qualifications:**
+ Bachelor's degree in a STEM discipline (Science, Technology, Engineering or Math) with 2 years of related engineering experience; OR a Master's degree in STEM
+ Experience with the full Software Development Life Cycle (SDLC) - software design requirements, application development, integration, testing, and deployment
+ Experience with at least one of the following programming or scripting languages: C, C++, and Python
+ Experience with Software Change Control, Change Management, and CI/CD tools such as: Atlassian tool suite, GitHub, GitLab, AND/OR Jenkins
+ **Must have an active DoD Secret Security Clearance or higher**
+ Must have the ability to obtain and maintain Special Access Program (SAP) clearance prior to the commencement of employment.
**Preferred Qualifications:**
- Strong understanding of C and C++ languages including templates, memory storage, and compiler/linker
- Experience with or knowledge of Joint Simulation Environment (JSE), Distributed Interactive Simulation (DIS), or High-Level Architecture (HLA)
- Experience with Full-Motion Flight Training Systems
- Experience with simulated threat environments such as AFSIM or NGTS
- Ability to collaborate with systems engineers, hardware designers and integration/test engineers to develop and maintain complex software systems
- Excellent communication, interpersonal skills, and the ability to interface with all levels of employees and management
**Thrive with Us**
At Northrop Grumman we are invested in the growth and well-being off all our employees. We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment.
Our Total Rewards Program offers a comprehensive employee benefits package, including a Retirement and Savings Plan, group medical, dental and vision coverage, life and disability insurance, and flexible spending accounts.
We have a new Academy which is a onboarding and professional development / employee engagement tool we've designed to support employees and their teams. A newsletter is sent out each month to keep the division apprised of upcoming events. There are three areas of focus: **Mission Education, Leadership Excellence** , and **Program Orientation.**
We have Employee Resource Groups (ERGs) that provide benefits for the member, our leaders and the company. Our ERGs offer opportunities to be a friend, be active, be a volunteer, be a leader, to be recognized and to be yourself. Every ERG is inclusive of all employees!
Primary Level Salary Range: $73,100.00 - $109,700.00
The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.
Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.
The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.
Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Software Engineer, Simulation (Starship)

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

Software Engineer, Simulation Software (Starship)

SpaceX's Starship spacecraft and Super Heavy rocket (collectively referred to as Starship) represent a fully reusable transportation system designed to carry both crew and cargo to Earth orbit, the Moon, Mars and beyond. Starship will be the world's most powerful launch vehicle ever developed, with the ability to carry in excess of 100 metric tons to Earth orbit.

As a Software Engineer on the Starship Simulation Software team, you will design and develop high performance simulation models of vehicle and ground systems, support development and validation of Hardware-in-the-Loop testbeds (HITL) and build scalable test execution infrastructure. You will engage with other engineering teams to build simulation capabilities that enable the organization to accelerate the development and deployment of safe, reliable and efficient software for Starship.

Aerospace experience is not required to be successful here - rather we look for smart, motivated, collaborative engineers who love solving problems and want to make an impact on a super inspiring mission.

Responsibilities:

• Collaborate with the Avionics team to develop and validate Hardware-in-the-Loop testbeds
• Collaborate closely with hardware and analysis teams to develop high-fidelity and performant simulation models for vehicle subsystems
• Develop and maintain the infrastructure used to execute simulations
• Follow and maintain high software standards and software engineering best practices within Starship Software

Basic Qualifications:

• Bachelor's degree in computer science, software engineering, computer engineering, electrical engineering or other engineering discipline; OR 2+ years of professional software development experience in lieu of a degree

Preferred Skills and Experience:

• Proven skills and knowledge of C++, Python, Rust, or other systems programming language
• Experience with building simulation models, CI systems and debugging tools
• Strong focus and interest in designing, architecting, and implementing excellent, bug-free software
• Basic knowledge of electronics, controls, fluid systems, motor design, or physical mechanics
• Strong critical thinking and first-principles problem-solving skills
• Excellent written and verbal communication skills
• Able to work effectively in a dynamic environment while assuming high levels of responsibility and demonstrating accountability for software outcomes

Additional Requirements:

• Willing to work long hours and weekends as needed

Compensation and Benefits:

Pay range:

Software Engineer/Level I: $120,000.00 - $45,000.00/per year

Software Engineer/Level II: 140,000.00 - 170,000.00/per year

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. Those with an active clearance will receive a 10% differential, up to an additional 15,000 annually, once officially briefed into a classified program.

Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Exempt employees are eligible for 5 days of sick leave per year.

Software Engineer, Simulation (Starship)

Hawthorne, CA

Apply

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

SOFTWARE ENGINEER, SIMULATION SOFTWARE (STARSHIP)

SpaceX's Starship spacecraft and Super Heavy rocket (collectively referred to as Starship) represent a fully reusable transportation system designed to carry both crew and cargo to Earth orbit, the Moon, Mars and beyond. Starship will be the world's most powerful launch vehicle ever developed, with the ability to carry in excess of 100 metric tons to Earth orbit.

As a Software Engineer on the Starship Simulation Software team, you will design and develop high performance simulation models of vehicle and ground systems, support development and validation of Hardware-in-the-Loop testbeds (HITL) and build scalable test execution infrastructure. You will engage with other engineering teams to build simulation capabilities that enable the organization to accelerate the development and deployment of safe, reliable and efficient software for Starship.

Aerospace experience is not required to be successful here - rather we look for smart, motivated, collaborative engineers who love solving problems and want to make an impact on a super inspiring mission.

RESPONSIBILITIES:

• Collaborate with the Avionics team to develop and validate Hardware-in-the-Loop testbeds

• Collaborate closely with hardware and analysis teams to develop high-fidelity and performant simulation models for vehicle subsystems

• Develop and maintain the infrastructure used to execute simulations

• Follow and maintain high software standards and software engineering best practices within Starship Software

BASIC QUALIFICATIONS:

• Bachelor’s degree in computer science, software engineering, computer engineering, electrical engineering or other engineering discipline; OR 2+ years of professional software development experience in lieu of a degree

PREFERRED SKILLS AND EXPERIENCE:

• Proven skills and knowledge of C++, Python, Rust, or other systems programming language

• Experience with building simulation models, CI systems and debugging tools

• Strong focus and interest in designing, architecting, and implementing excellent, bug-free software

• Basic knowledge of electronics, controls, fluid systems, motor design, or physical mechanics

• Strong critical thinking and first-principles problem-solving skills

• Excellent written and verbal communication skills

• Able to work effectively in a dynamic environment while assuming high levels of responsibility and demonstrating accountability for software outcomes

ADDITIONAL REQUIREMENTS:

• Willing to work long hours and weekends as needed

COMPENSATION AND BENEFITS:

Pay range:

Software Engineer/Level I: $120,000.00 - $45,000.00/per year

Software Engineer/Level II: 140,000.00 - 170,000.00/per year

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience. Those with an active clearance will receive a 10% differential, up to an additional 15,000 annually, once officially briefed into a classified program.

Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Exempt employees are eligible for 5 days of sick leave per year.

ITAR REQUIREMENTS:

• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITARhere ( .

SpaceX is an Equal Opportunity Employer; employment with SpaceX is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Applicants wishing to view a copy of SpaceX’s Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to

About Us

At Agtonomy, we're not just building tech-we're transforming how vital industries get work done. Our Physical AI and fleet services turn heavy machinery into intelligent, autonomous systems that tackle the toughest challenges in agriculture, turf, and beyond. Partnering with industry-leading equipment manufacturers, we're creating a future where labor shortages, environmental strain, and inefficiencies are relics of the past. Our team is a tight-knit group of bold thinkers-engineers, innovators, and industry experts-who thrive on turning audacious ideas into reality. If you want to shape the future of industries that matter, this is your shot.

About the Role

We are seeking a Software Engineer to design and build rich simulation environments, scaling our virtual fields in coverage, realism, and throughput. In this role, you will harness modern game development practices to leverage and extend industry-leading physics and rendering platforms such as NVIDIA Isaac Sim, Unity, or Unreal Engine to design and deliver synthetic environments that are dynamic, richly interactive, and photorealistic. You will build scalable content pipelines that enable rapid creation of diverse simulation scenarios within these virtual environments that will allow our software & operations teams to push the boundaries of robotics training and validation.

What you'll be doing

• Design, build, and maintain a scalable simulator integration that meshes cleanly with our custom in-house middleware and data pipelines.
• Develop randomization and procedural generation frameworks that systematically expose simulated vehicles to diverse visual, physical, and kinematic conditions.
• Source and construct environment assets so they can be deployed at scale across our simulation workflows.
• Establish best practices for versioning, testing, and validating simulated scenarios against real-world benchmarks.
• Collaborate closely with software, hardware and operations teams to ensure our simulators capture the true complexity of physical interactions while remaining intuitive, extensible, and easy to integrate.
• Help to bridge the gap between digital simulation, hardware in the loop and the physical real-world.

What you'll be doing

• A Bachelor's degree in Computer Science, Engineering, or a related field, with 3+ years of experience writing production-grade software.
• Domain experience in physics-based simulation or game development
• Strong programming skills in Python and C++, especially for robotics systems development.
• Knowledge of sensor simulation principles and how perception systems interact with synthetic data.
• A knack for tackling challenges in new problem spaces, solving pivotal problems, and building real solutions that bring your ideas to life.
• You have start-up DNA and the ability to thrive in the ambiguity of a dynamic, fast moving environment.

What makes you a strong fit

• Staying on top of advances in physics engines, differentiable simulation, and synthetic-data generation for robot learning.
• You've led previous projects that bridge digital worlds and physical worlds.
• Knowledge to deploy things you build on cloud platforms (AWS, GCP, etc.)
• Experience with NVIDIA Isaac Sim and/or Omniverse.
• Experience with USD, MJCF, URDF and various CAD formats.
• Experience with system level optimization using multi-threading, asynchronous programming, concurrency and parallelism.
• You've played far too many hours of Farming Simulator to admit.
• A passion for creating tech that supports sustainable industries.

$160,000 - $00,000 a year

The US base salary range for this full-time position is 160,000 to 200,000 + equity + benefits + unlimited PTO

The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations. Within the range, individual pay is determined by work location, internal equity, and additional factors, including, but not limited to, job-related skills, experience, and relevant education or specialty training. Your recruiter can share more about the specific salary range during the hiring process.

Benefits

100% covered medical, dental, and vision for the employee (cost plus partner, children, or family is additional)

Commuter Benefits

Flexible Spending Account (FSA)

Life Insurance

Short- and Long-Term Disability

401k Plan

Stock Options

Collaborative work environment, working alongside passionate mission-driven folks!

Our interview process is generally conducted in four (4) phases

Phone Screen with People Operations (30 minutes)

Video Interview with the Hiring Manager (30 to 45 minutes)

Technical Interview with an Engineer (60 minutes)

Panel Interview (in-person interviews scheduled with key stakeholders, each interview will be 30 to 45 minutes)

Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-megawatt failsafe microreactor that can be transported anywhere power is needed and run for up to five years without the need to refuel. Portable nuclear power with rapid deploy capability can replace similar-sized diesel generators, and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant's unique, practical approach to nuclear development utilizes modern software engineering to rapidly achieve safe, factory-built microreactors that leverage existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor next year at the Idaho National Laboratory, with initial customer deliveries beginning in 2028.

Software Engineer - Simulation

Radiant is seeking a highly driven Software Engineer with a strong physics or mechanical engineering background. You will collaborate with mechanical, electrical, and nuclear teams to simulate physical systems with an appropriate degree of fidelity, write software that can be deployed to production hardware, and improve our simulation and test software stack, including our cutting-edge, custom-built Digital Twin system. You will have an opportunity to work in an interdisciplinary environment with a high degree of ownership and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor.

Responsibilities and Duties:

• Develop models to simulate reactor physics, thermal hydraulics, and other Kaleidos systems.
• Improve thermal fidelity of reactor components in the Digital Twin.
• Collaborate across teams to accelerate software-in-the-loop and hardware-in-the-loop testing.
• Own mission-critical internal products and tooling.

Required Qualifications and Skills:

• Bachelor's degree in physics, mechanical engineering, or similar field from an accredited institution.
• 4+ years of professional experience in Python, C#, C++, or similar object-oriented programming languages.
• Familiarity with software development and documentation best practices, including version control in Git.

Desired Qualifications and Skills:

• Advanced degree (Master's or Ph.D.) in physics, mechanical engineering, or similar field from an accredited institution.
• Highly self-motivated with strong communication skills.
• Experience writing or contributing to simulation tools.
• Experience with distributed software development and familiarity with common design patterns.
• Interest in physics, hardware, and electrical engineering.

Additional Requirements:

• Must be willing to work extended hours and weekends as necessary to accomplish our mission.
• Must work 100% onsite at El Segundo HQ.

Total Compensation and Benefits

Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive benefits. Total compensation and level are determined through a holistic evaluation of your interview performance, experience, education, and qualifications.

Benefits and Perks for Eligible Employees:

• Stock: Substantial incentive stock plan for all full-time employees.
• Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
• One Medical: Sponsored memberships for employees and their dependents.
• Vision: 100% top tier plan coverage + 50% for dependents.
• Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events, happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Unfortunately, we are unable to provide visa sponsorship at this time.

This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant's capacity to serve in compliance with U.S. export controls.