Battery Systems Engineer Jobs (NOW HIRING)

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. 

Join Rivian as a Sr. Battery Engineer within the ESS Product Excellence team, based in our Tustin, CA office. In this role, you will drive the sustaining engineering of HV battery systems that are already in production, with a heavy focus on field performance analysis, reliability, and service issue mitigation. You will also play a key role in closing the loop between field/production learning and future product development by providing lessons learned and Design for Manufacturing (DFM) input into nextgeneration battery designs.

If you are a selfstarter with strong battery systems expertise, a passion for diagnosing complex issues in the field, and a desire to shape the design of our future products, we want to hear from you. Help us keep the world adventurous forever.

• Drive sustaining engineering for inproduction HV battery systems
  
  • Serve as a technical expert for HV battery packs in series production, with primary focus on field performance, reliability, and serviceability.
  • Act as a key liaison between Service, Reliability, Reman, FAME, Plant ME/PE/Ops, Supplier Quality, and Product Development to drive durable solutions to battery issues observed in the field and at service centers.
  • Maintain a systemlevel view of how hardware, BMS software, diagnostics, and vehicle usage patterns interact to impact customer experience.
• Own field performance analyses and service issue mitigation
  
  • Analyze field, warranty, and ongoing reliability test data to detect trends, characterize emerging failure modes, and quantify risk to customers and the business.
  • Lead root cause investigations for HV batteryrelated field and service issues (e.g., nostart, reduced performance, diagnostic trouble codes, degradation anomalies), driving permanent corrective and preventive actions.
  • Partner closely with Service Engineering and Technical Support to define, refine, and validate diagnostic strategies, service procedures, and repair paths, ensuring they are robust, efficient, and safe for field execution.
  • Support prioritization and validation of field actions (e.g., service campaigns, software updates, component changes) and clearly communicate risk/benefit tradeoffs to crossfunctional stakeholders.
• Drive DFM, serviceability, and remanufacturing improvements
  
  • Provide lessons learned and DFM feedback from field and production back into battery architecture, component selection, and integration strategies for current and future programs.
  • Collaborate with Manufacturing Engineering, Reman, and Supplier Quality to improve build robustness, yield, rework/repair strategies, and remanufacturing flows for HV battery assemblies.
  • Influence design decisions to improve service access, diagnostic coverage, component modularity, and repairability, minimizing customer downtime and total cost of ownership.
• Contribute to new product and system strategy
  
  • Partner with the new product design teams to ensure that issues observed on current products inform requirements, architecture, and test strategies for upcoming battery platforms.
  • Work with design teams to update part models and drawings as part of corrective action cycles for field failures and reliability issues.
  • Support the development and maturation of crossfunctional processes (PD, ME, Ops, Service, Reliability, Reman) that tie together design, manufacturing, and field data to accelerate problem detection and resolution.
• Elevate technical rigor and crossfunctional communication
  
  • Analyze test and field data, author clear technical reports, and present findings and recommendations to engineering leadership and crossfunctional partners.
  • Create and maintain systemlevel documentation (e.g., requirements, DFMEAs inputs, fault trees, test plans/summary reports) that connect observed issues back to design and process controls.
  • Aid other engineers in structured problem solving, datadriven decision making, and best practices in battery sustaining engineering.

• Experience & Education
  
  • 3+ years of experience in Battery, Automotive, Aerospace, or related industries, with significant exposure to HV battery systems, field performance, or failure analysis.
  • A bachelor’s degree in an engineering discipline (e.g., Electrical, Mechanical, Mechatronics, Automotive, or related). An advanced degree is a plus.
  • Previous experience with product launches, production schedules, and release engineering (including CAD design, GD&T, and PLM interface).
  • Mechanical engineering experience required, electronics / controls experience a plus
  • Passion for working on products that involve the intersection of mechanical, electrical, and software engineering
• Technical Skills
  
  • Strong understanding of HV battery system architecture, including cells, modules, pack, contactors, pyros, sensing, cooling, BMS hardware/software, and vehicle interfaces.
  • Demonstrated experience with field issue root cause analysis, including use of telematics, warranty, and diagnostic data to drive corrective and preventive actions.
  • Working knowledge of battery diagnostics and prognostics, including DTC strategies, stateofcharge/health estimation, imbalance detection, and fault handling.
  • Familiarity with DFM/DFS/DFR principles, production test strategies (e.g., EndofLine), and their relationship to field performance and reliability.
  • Solid understanding of highvoltage safety and safe work practices in both lab and field environments.
  • Proficiency using CAN/Ethernet tools for debugging purposes a plus
  • Background with CATIA V6 (3Dx) CAD Design and Enovia a plus
• Problem Solving & Collaboration
  
  • Excellent problemsolving skills, grounded in core engineering principles, firstprinciples reasoning, and structured root cause methodologies.
  • Proven ability to work in a fastpaced environment with a strong sense of ownership, urgency, and followthrough from problem identification to implemented solution.
  • Experience working in crossfunctional teams, with the ability to bridge design, manufacturing, service, and reliability perspectives.
  • Strong verbal and written communication skills, including the ability to simplify complex technical topics for diverse audiences.
  • Familiarity with issue tracking and project management tools (e.g., Jira, 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. 

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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.

• Experience & Education
  
  • 3+ years of experience in Battery, Automotive, Aerospace, or related industries, with significant exposure to HV battery systems, field performance, or failure analysis.
  • A bachelor’s degree in an engineering discipline (e.g., Electrical, Mechanical, Mechatronics, Automotive, or related). An advanced degree is a plus.
  • Previous experience with product launches, production schedules, and release engineering (including CAD design, GD&T, and PLM interface).
  • Mechanical engineering experience required, electronics / controls experience a plus
  • Passion for working on products that involve the intersection of mechanical, electrical, and software engineering
• Technical Skills
  
  • Strong understanding of HV battery system architecture, including cells, modules, pack, contactors, pyros, sensing, cooling, BMS hardware/software, and vehicle interfaces.
  • Demonstrated experience with field issue root cause analysis, including use of telematics, warranty, and diagnostic data to drive corrective and preventive actions.
  • Working knowledge of battery diagnostics and prognostics, including DTC strategies, stateofcharge/health estimation, imbalance detection, and fault handling.
  • Familiarity with DFM/DFS/DFR principles, production test strategies (e.g., EndofLine), and their relationship to field performance and reliability.
  • Solid understanding of highvoltage safety and safe work practices in both lab and field environments.
  • Proficiency using CAN/Ethernet tools for debugging pu...