Mechanical Engineer Co Jobs in Riverside, CA (NOW HIRING)

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 backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations.
Role Summary
The Senior Staff Attributes Engineer at Rivian is responsible for defining and delivering the performance attributes of a product or portfolio of products across all phases of the Rivian Development Process (RDP). Prior to program kickoff, you will conduct product research, perform competitive benchmarking, and define initial performance targets. During series development, you will host regular cross-functional reviews to track status updates and resolve issues.. During the validation phase, you will co-develop design validation plans (DVPs) and assign DVPs to test blocks on validation assets. Throughout all phases of development, you will host regular key milestone status reviews with program leadership to report overall attribute health and cascade action plans. This position offers an opportunity to help define Rivian products' overall performance envelopes while collaborating closely with key stakeholders across all subsystems. With your experience and proactive mindset, you'll play a vital role in ensuring Rivian's products deliver world class performance.
Responsibilities

• Conduct product research to highlight industry trends identify opportunities for future product differentiation
• Collect and compile a comprehensive database of key benchmarking metrics within the competitive landscape
• Collaborate with sub-attribute and subsystem teams to develop product performance targets based on program initiatives and analysis from competitive benchmarking
• Define and maintain performance targets and their corresponding statuses within the requirements management database
• Reconcile performance constraints between competing sub-attributes to balance overall vehicle performance aspirations
• Host regular cross-functional design reviews to track status updates, resolve issues, and arbitrate between sub-attributes
• Collaborate with individual attribute and subsystem teams to develop design validation plans (DVPs)
• Coordinate with the Test & Development (T&D) team to assign DVPs to test blocks on validation assets and track progress toward their completion
• Host regular key milestone status reviews with program leadership to report overall attribute health and cascade action plans for any attribute performance deficiencies
• Work hard, exceed expectations, challenge industry conventions, and relentlessly strive to make truly exceptional products

Qualifications

• B.S. or higher in Mechanical Engineering or equivalent
• 10+ years of experience in vehicle or subsystem development, including at least one full product lifecycle from concept through production
• Proficiency with timing plan development and requirements management systems
• Comprehensive understanding of functional vehicle systems and corresponding design principles
• Working knowledge of automotive regulatory and certification requirements
• Experience with full-vehicle and/or vehicle subsystem validation testing
• Strong problem-solving skills, with the ability to anticipate and address potential roadblocks in automotive development
• Excellent communication and organizational skills, ensuring clear expectations and structured execution of vehicle performance initiatives
• Working Hours: Standard (8am - 5pm)
• Travel Requirements of Position: At least twice per quarter

Pay Disclosure
The salary range for this role is $196,000-245,000 for Southern 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 March 27, 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
Candidate Data Privacy and Technology
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.
AI does not make hiring decisions: Qualified candidate applications are reviewed by a member of our team, and all decisions throughout the process are made by humans. We use AI to support efficiency and consistency, not to replace human judgment. We are committed to a fair, thoughtful, and equitable experience for every candidate.
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.