Sr. Range & Efficiency Development Engineer

Rivian; Plymouth, Irvine (MI, CA); On-site; USD 111,500 - 151,900; Full time

Benefits offered by this job

401(k) Plan

Employee Stock Purchase Program

Comprehensive benefits

Job summary

Rivian seeks a Range & Efficiency Development Engineer to support the Range & Efficiency Attributes process during final vehicle level validation sign-off. You will handle test planning, vehicle preparation and data analysis, and work with chamber, proving grounds and on-road testing for R&E attributes.

You will partner with software and hardware teams to instrument vehicles, run 1D simulations, collect and share logged data, and provide actionable insights and design feedback for future Rivian

Qualifications

• Hands-on dynamometer testing experience.
• Ability to manage multiple tests in parallel.
• Working knowledge of CAN, LIN, Ethernet networks.
• Experience with 1D simulation, data analysis and test scripting.
• Experience debugging hardware/software at vehicle level.
• Instrument vehicles and collect data with CANalyzer/Hioki.
• Strong communication in technical and non-technical contexts.
• BS in engineering (MS/PhD preferred).

Responsibilities

• Execute vehicle-level static and dynamic efficiency tests per plan.
• Run 1D simulations to optimize powertrain, aerodynamics and rolling resistance.
• Document findings and provide design feedback for improvements.
• Run vehicle test procedures using hub/chassis dynamometer and post-process data.
• Instrument vehicles with data acquisition hardware for data collection.
• Collaborate with software and hardware teams to ensure proper testing.
• Share logged data with cross-functional teams.

Skills

Dynamometer testing

Vehicle networks (CAN, LIN, Ethernet)

1D simulation

Data analysis

C/C++

Python

MATLAB/Simulink

Test scripting/automation

Education

BS in engineering

MS or PhD preferred

Tools

CANalyzer

Hioki

Data acquisition hardware

Job description

About Rivian

Rivian is on a mission to keep the world adventurous forever. This goes for the emissions‑free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract.

As a company, we constantly challenge what’s possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our background is diverse, but our team shares a love of the outdoors and a desire to protect it for future generations.

Role Summary

The Range & Efficiency (R&E) Development Engineer supports the R&E Attributes process during final vehicle level validation sign off. Test planning, vehicle preparation and data analysis are part of the daily activities for this role. Support chamber, proving grounds and on‑road testing for R&E Attributes and through hardware/software development. Manage opening and closure of engineering concerns and issues throughout the vehicle life.

Responsibilities

• Execute vehicle level static and dynamic efficiency test activities per test plans developed in collaboration with key internal stakeholders and external resources.
• Conduct 1D vehicle level simulations to optimize vehicle Powertrain efficiency, Vehicle aerodynamics, Thermal strategies and Tire rolling resistance under different ambient and operating conditions.
• Document findings and recommendations for range and efficiency improvements, providing actionable insights and design feedback for future product iterations.
• Run vehicle test procedures using hub and chassis dynamometer and complete post‑processing and data analysis.
• Responsible to instrument vehicles with the necessary data acquisition hardware for data collection.
• Work closely with software and hardware teams to make sure representative vehicle is being tested.
• Responsible for retrieving, storing, and sharing of logged data from tests with different teams.

Qualifications

• Hands‑on knowledge of dynamometer testing, coastdown testing is a plus.
• Capability to manage multiple tests activities in parallel for different programs.
• Working knowledge of vehicle communication network systems (CAN, LIN, Ethernet, etc.).
• Experience in 1D simulation, data analysis and test scripting/automation experience (C/C++, Python, MATLAB/Simulink).
• Experience in debugging and resolving hardware and software issues at vehicle level.
• Ability to instrument a vehicle and operate data acquisition systems such as CANalyzer & Hioki for data collection.
• Excellent communication skills in both technical and non‑technical environments.
• A strong desire to create the very best product, working as an integral part of a very capable team.
• BS (and preferably MS or PhD) in an engineering discipline.

Preferred Qualifications

• Experience with vehicle controls and power electronics.
• Experience with vehicle level chassis dyno testing.
• Experience with MATLAB and Simulink.

Pay Disclosure

The salary range for this role is $121,500–151,900 for Southern California based applicants and $111,500–138,700 for Michigan based applicants. This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee’s position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, geographic location, shift, and organizational needs.

The successful candidate may be eligible for annual performance bonus and equity awards.

We offer a comprehensive package of benefits for full‑time and part‑time employees, their spouse or domestic partner, and children up to age 26, including but not limited to paid vacation, paid sick leave, and a competitive portfolio of insurance benefits including life, medical, dental, vision, short‑term disability insurance, and long‑term disability insurance to eligible employees. You may also have the opportunity to participate in Rivian’s 401(k) Plan and Employee Stock Purchase Program if you meet certain eligibility requirements. Full‑time employee coverage is effective on their first day of employment. Part‑time employee coverage is effective the first of the month following 90 days of employment. More information about benefits is available at rivianbenefits.com.

You can apply for this role through careers.rivian.com or through internal-careers-rivian.icims.com if you are a current employee. This job is not expected to be closed any sooner than May 18, 2026.

Equal Opportunity

Rivian is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law.

Rivian is committed to ensuring that our hiring process is accessible for persons with disabilities. If you have a disability or limitation, such as those covered by the Americans with Disabilities Act, that requires accommodations to assist you in the search and application process, please email us at [e-mail].

Candidate Data Privacy

Rivian may collect, use and disclose your personal information or personal data (within the meaning of the applicable data protection laws) when you apply for employment and/or participate in our recruitment processes (“Candidate Personal Data”). This data includes contact, demographic, communications, educational, professional, employment, social media/website, network/device, recruiting system usage/interaction, security and preference information. Rivian may use your Candidate Personal Data for the purposes of (i) tracking interactions with our recruiting system; (ii) carrying out, analyzing and improving our application and recruitment process, including assessing you and your application and conducting employment, background and reference checks; (iii) establishing an employment relationship or entering into an employment contract with you; (iv) complying with our legal, regulatory and corporate governance obligations; (v) recordkeeping; (vi) ensuring network and information security and preventing fraud; and (vii) as otherwise required or permitted by applicable law.

Rivian may share your Candidate Personal Data with (i) internal personnel who have a need to know such information in order to perform their duties, including individuals on our People Team, Finance, Legal, and the team(s) with the position(s) for which you are applying; (ii) Rivian affiliates; and (iii) Rivian’s service providers, including providers of background checks, staffing services, and cloud services.

Rivian may transfer or store internationally your Candidate Personal Data, including to or in the United States, Canada, the United Kingdom, and the European Union and in the cloud, and this data may be subject to the laws and accessible to the courts, law enforcement and national security authorities of such jurisdictions.

Please note that we are currently not accepting applications from third party application services.