East Coast Sales Engineer

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.

As a Sales Engineer, you’ll be the technical partner to our commercial sales team, helping customers understand how Harbinger’s platform solves real-world fleet challenges. You’ll work directly with customers while partnering closely with Engineering, Product, Service, and Sales to develop technical solutions that accelerate vehicle adoption.

• Partner with Sales throughout the customer journey, from initial discovery through vehicle delivery.
• Lead technical discussions, product demonstrations, and customer presentations.
• Understand customer operations and recommend vehicle configurations that meet their business needs.
• Serve as the technical expert on Harbinger’s vehicle platform, charging solutions, and commercial applications.
• Develop technical proposals, respond to customer requirements, and support RFPs.
• Collaborate cross-functionally to resolve technical challenges and communicate customer feedback that shapes future products.
• Support pilot programs, customer launches, dealer training, and industry events.

• 5+ years of experience in Sales Engineering, Applications Engineering, Field Engineering, or another customer-facing technical role.
• Strong understanding of automotive, commercial vehicles, electrification, industrial equipment, or related technologies.
• Ability to simplify complex technical concepts for a wide range of audiences.
• Excellent communication skills and a customer-first mindset.
• Comfortable working in a fast-moving, highly collaborative startup environment.

• Experience supporting commercial fleets or medium-duty vehicles.
• Knowledge of EV powertrains, charging infrastructure, or fleet operations.
• Experience working with dealers, upfitters, or technical channel partners.

• 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

$120,000 — $140,000 USD

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

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…