About Range Energy

Range Energy builds powered trailers that help electrify heavy-duty trucking without requiring fleets to replace their tractors. We solve real-world problems with real hardware.

We move fast, take ownership, and hold a high bar for execution. We value people who are low ego and team-first, calm under pressure, direct and respectful communicators, willing to roll up their sleeves, and focused on solutions, not drama.

We operate with high integrity. We do what we say we’ll do, we’re transparent about risks and tradeoffs, and we build trust through consistent follow-through.

The work is hands-on. Sometimes messy. Often fast. Always meaningful.

Founded in 2021, Range is led by experienced EV operators from Tesla, Zoox, Honda, and other leading OEMs. We are backed by strong investors and focused on building hardware that fleets will actually use.

If you like building real things, solving hard problems, and working with low drama, high output teammates, you will fit here.

Role Summary

As the Sr. Reliability Engineer, you will be pivotal in ensuring the dependability and performance of our products throughout their lifecycle. Collaborating closely with cross-functional teams, you will design and implement testing protocols, analyze data, and drive improvements to enhance product reliability. This position offers a unique opportunity to contribute to the advancement of cutting-edge electric vehicle technology.

### Key Responsibilities

Define, own, and continuously mature Range's end-to-end reliability program, establishing standards, processes, and culture across engineering, manufacturing, and operations
Build and maintain a reliability roadmap aligned with product development milestones and fleet growth targets

Develop and deploy predictive reliability models leveraging field telemetry, sensor data, and historical failure data to anticipate failures before they occur
Build reliability growth models (Duane, AMSAA/Crow) to track and project reliability improvement over the product lifecycle
Apply statistical methods Weibull analysis, Monte Carlo simulation, regression modeling to quantify failure risk and remaining useful life (RUL) of critical components
Establish and monitor fleet-level KPIs including MTBF, MTTR, availability, failure rate, and warranty cost trends

Define and leadDFMEAs to proactively identify and mitigate failure modes across systems to minimize costs and enhance customer satisfaction
Define and enforce reliability requirements at the system, subsystem, and component level for Class 8 powertrain, chassis, and vehicle integration applications
Conduct reliability allocation and reliability block diagram (RBD) modeling to ensure top-level uptime targets are achievable by design
Champion reliability-centered design decisions including redundancy strategies, derating, and materials selection appropriate for heavy-duty trucking environments

Author and maintain master Test Plans covering scope, objectives, resources, schedules, entry/exit criteria, and risk, ensuring alignment across engineering, program management, and leadership stakeholders
Develop and execute comprehensive testing protocols including environmental (temperature, humidity, thermal shock, vibration, dust/water ingress), durability, fatigue, load, and accelerated life testing (ALT) tailored to Class 8 operating conditions
Build Usage Profiles and Mission Profiles that accurately represent real-world Class 8 duty cycles long-haul, regional, and vocational and translate them into lab-equivalent test specifications
Define and manage the Design Verification Plan and Report (DVP&R) for all major systems and subsystems, ensuring full traceability from requirements through test evidence
Develop Production Validation Testing (PVT) plans to confirm that manufacturing processes do not degrade reliability relative to design intent

Lead investigations into product failures, perform root cause analyses using 8D, Fishbone, 5-Why, and FTA methodologies, and implement corrective actions to prevent recurrence
Maintain a living failure database and lessons-learned repository to capture institutional knowledge and inform future designs

Create detailed reports, including DVP&Rs, test reports, failure analysis summaries, and reliability scorecards, to document testing procedures, results, and corrective actions
Participate in design reviews and contribute to the development of supplemental design documentation such as assembly instructions, test reports, and cost analyses
Support continuous improvement initiatives by leveraging field and test data to drive design iteration and product upgrades

### Required Qualifications

7+ years of experience in reliability engineering or a related role. In automotive/ heavy trucking
Proficiency in reliability testing methodologies and data analysis techniques including DVP&R, ALT, DFMEAs, and HALT/HASS
Experience with reliability metrics and statistical analysis tools.
Strong problem-solving skills with the ability to conduct thorough root cause methodologies (8D, 5-Why, FTA, Fishbone, etc.).
Excellent communication skills, both verbal and written, with the ability to collaborate across engineering disciplines and business functions.
Ability to work on-site in a dynamic environment, with hands-on involvement on the build floor.
Comfortable working across hardware, software, and operations teams in a fast-paced, hands-on environment
Bachelor’s degree in Mechanical Engineering or a related field.

### Preferred / Nice-to-Haves

Leadership experience in collegiate-level student design competitions.
Prior internship or co-op experience in an engineering environment.
Familiarity with automotive engineering standards, manufacturing technology, and electric vehicles.
Demonstrated hands-on experience in a fabrication shop using machine tools.
Certifications in reliability engineering or related disciplines.
Experience with Design Verification Plan and Report (DVP&R) processes.
Knowledge of fault injection testing methodologies.
Knowledge of automotive engineering standards (ISO 26262, SAE J standards)

### Other Requirements:

Physical Requirements: Ability to lift and carry up to 50 pounds of equipment and components. Comfortable with occasional bending, kneeling, and climbing as required for infrastructure maintenance.
Travel Requirements: Occasional travel may be required for training, pilot support, conferences, or to support remote office locations.

While we appreciate the importance of schedule flexibility, it's essential to note that the nature of this role necessitates a regular and consistent onsite presence.

Range Energy’s compensation package includes a competitive salary, equity for all full-time roles, and a generous benefits package. The salary range for Mountain View, CA based applicants is between $165,000 - $260,000 annually. The salary band range indicated reflects early career, senior, and staff-level experience and final salary will be specific to a candidate’s experience level. The total compensation will be determined based on multiple factors including domain knowledge, experience and location.

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Range Energy participates in E-Verify in the United States. Range Energy will provide the U.S. Social Security Administration (SSA) and, if necessary, the U.S. Department of Homeland Security (DHS), with information from each new employee's Form I-9 to confirm work authorization.

Sr. Reliability Engineer

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