Assistant Control Systems Engineer Jobs in Long Beach, CA

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 backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations. 

Are you a skilled Battery Control Systems Engineer with a passion for solving complex diagnostic challenges? Do you thrive in a dynamic environment where your expertise in failure analysis directly impacts customer satisfaction? Join our team at Rivian's Propulsion Headquarters in Tustin, CA, as part of the Battery Product Excellence Team, and lead the charge in identifying root causes and implementing corrective actions for vehicle-level failures, ensuring our customers have an exceptional Rivian experience.

• Develop an expertise in the controlled interactions between the Battery Management System (BMS) & the rest of the vehicle; become familiar with the battery measurement and controls architecture
• Lead diagnostic analyses to determine root cause of HV Energy Storage System (ESS) related failures at the customer level through BMS and vehicle-level data analysis
• Support battery production and vehicle general assembly, through end of line failure data analysis, traveling to support critical cross-functional issues on-site when necessary
• Partner with Field Reliability, Field Service, Failure Analysis, Battery Production, Plant Quality, Battery Remanufacturing, and all relevant battery and vehicle control design teams to ensure alignment on cross-functional issues and necessary mitigation actions
• Develop and propose improvements to the BMS and vehicle diagnostic strategies to mitigate customer impact and streamline the field service failure analysis process
• Collaborate with the HV battery platform team responsible for new product architecture development (fusing, HV switchgear, HV Electrical Safety, and overcurrent protection) to integrate field-related lessons learned and optimize next-generation designs

• 3+ years of work experience in Battery/Automotive/Aerospace/related industries, with significant experience in diagnostic engineering or failure analysis
• A bachelor's degree in an engineering discipline
• Knowledge of battery behavior and high voltage safety
• Knowledge of battery sensing technology and battery management architectural design
• Ability to work in a fast-paced environment with focus on rapid root cause identification and corrective action implementation
• Experience creating requirements from the ground up, using engineering analysis, with a strong focus on diagnostics
• Excellent problem-solving skills; reliant on core engineering principles and common sense, with a proven track record in root cause analysis
• Experience with vehicle communication bus diagnostic tools
• Strong communication skills verbally, written, and through presentation to communicate complex technical issues to diverse audiences
• Experience with issue tracking tools (Jira, Bugzilla, etc.)

The salary range for this role is USD 121,500 - 151,900 for California 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 July 20, 2026.

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 candidateaccommodations@rivian.com.

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.  

How We Use AI in Our Hiring Process: To ensure transparency, we want candidates to know that Rivian uses iCIMS Talent Cloud Artificial Intelligence (TCAI) and AI-enabled tools to assist with screening, reviewing, organizing and highlighting profiles and applications that match the key requirements for each role.

Participation in AI profile matching is entirely voluntary. If you prefer that your profile not be used in this process, you can opt out at any time. Opting out means your profile will be excluded from automated matching and will not be surfaced for additional roles through this system. Your current application remains active and will not be affected in any way.

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

• 3+ years of work experience in Battery/Automotive/Aerospace/related industries, with significant experience in diagnostic engineering or failure analysis
• A bachelor's degree in an engineering discipline
• Knowledge of battery behavior and high voltage safety
• Knowledge of battery sensing technology and battery management architectural design
• Ability to work in a fast-paced environment with focus on rapid root cause identification and corrective action implementation
• Experience creating requirements from the ground up, using engineering analysis, with a strong focus on diagnostics
• Excellent problem-solving skills; reliant on core engineering principles and common sense, with a proven track record in root cause analysis
• Experience with vehicle communication bus diagnostic tools
• Strong communication skills verbally, written, and through presentation to communicate complex technical issues to diverse audiences
• Experience with issue tracking tools (Jira, Bugzilla, etc.)