Fastener Engineer

$140k - $180k

Full-time

Harbinger Motors

About Harbinger
Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger’s best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to bring a first-of-its-kind EV platform to support the growing demand for medium-duty EVs and Hybrids. Harbinger: Familiar Form, Revolutionary Foundation.
Role Overview
As a Fastener Engineer at Harbinger, you will be the primary technical authority for threaded fasteners, structural joining, and torque-controlled fastening systems across our electric vehicle platforms. You will be responsible for defining, implementing, testing and maintaining fastener standards , ensuring that all safety-critical joints—from suspension to HV battery packs—meet rigorous performance and quality requirements. This role bridges the gap between design engineering, manufacturing and quality, overseeing everything from initial material selection and coating specifications to the validation of DC nutrunner programs and inline process monitoring.
Key Responsibilities
Standardization & Specification: Author and maintain fastener standards, sizing spreadsheet, defining supplier quality requirements, chemical composition and mechanical properties for bolts, nuts, Huks and shims.
Torque Strategy Development: Define tightening strategies, testing bolts and joints to define the properties, validate the tightening including torque-plus-angle and review production torque data.
Joining Process Management: Oversee the installation and monitoring of structural fasteners, support the production quality audit and data collection from the production team.
Quality & Validation: Lead joint validation testing (torque-to-failure, push-out/pull-out) and establish in-process monitoring criteria like torque/angle signatures and yield point validation.
Surface & Coating Optimization: Evaluate coating systems (e.g., Geomet, Zinc-Nickel) for corrosion resistance and friction factor consistency to ensure proper clamp load delivery.
Required Skills & Experience
Education: Master’s degree in Mechanical Engineering (or a related field) + 5 years of relevant experience, OR a Bachelor’s degree + 7 years of relevant experience.
Fastening Expertise: Minimum 5 years of experience in fastener engineering or assembly joining, with deep knowledge of joint validation and bolt testing.
Equipment Proficiency: Experience with DC nutrunners, multi-spindle fixtures, and structural riveting tools, including configuration of closed-loop controllers and MES integration.
Technical Standards: Strong understanding of metric (ISO 261/262) and imperial (SAE J429) fastener specifications, including property classes 8.8, 10.9, and 12.9.
Materials & Coatings: Proven experience with carbon steel fastener manufacturing and advanced coating systems like Zinc-Nickel and Geomet.
Traceability & Data: Ability to manage and interpret complex fastening data, including torque/angle signatures and lot traceability.
Travel: Willingness to travel up to 20% domestically for supplier quality audits, assembly plant support, and testing.
Preferred Qualifications
Process Verification: Demonstrated success in Factory Acceptance Testing for multi-spindle fixtures and Cpk validation for torque/angle repeatability.
Problem Solving: Expert in root cause analysis (8D) for fastening failures, such as cross-threading, strip detection, or collar swage issues.
Commercial Acumen: Familiarity with the specific durability and payload requirements, as well as the typical failure modes, of the medium-duty delivery and logistics sector.
Key Benefits & Perks
Comprehensive Health, Dental & Vision (HDV) – 100% employee covered
Early-stage Stock Options
Robust Retirement Savings (401k, HSA, FSA)
Generous Paid Time Off (PTO) & Parental Leave
Annual Vacation Bonus
Wellness & Fertility Benefits
Cell Phone Stipend
Complimentary Meals & Stocked Kitchens
California Pay Range
$140,000—$180,000 USD
Equal Opportunity
Harbinger 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.
Harbinger 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 View email address on ev.careers.
Candidate Data Privacy
Harbinger 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. Harbinger 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.
Harbinger 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 HR, legal, and finance teams, and the team(s) with the position(s) for which you are applying; (ii) Harbinger affiliates; and (iii) Harbinger’s service providers, including providers of background checks, staffing services, and cloud services.
Harbinger 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. Any unsolicited resumes or candidate profiles submitted in response to our job posting shall be considered the property of Harbinger and are not subject to payment of referral or placement fees if any such candidate is later hired by Harbinger unless you have a signed written agreement in place with us which covers the applicable job posting.

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Vacancy posted 9 hours ago

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