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. Role Overview The Sales Engineer will serve as the technical-commercial bridge between our customers, dealers, sales teams, engineering, and external upfit partners—ensuring every vehicle is delivered with the right body, equipment, and configuration based on Harbinger’s specifications and customer needs. This person will be the internal expert on upfit compatibility, application mapping, and configuration guidance—helping customers and dealers confidently select the right solution while ensuring feasibility, compliance, and scalability. This person will work remote out of their home 66% percent of the time and travel the other 33% percent of the time. The travel includes visiting dealers and final stage upfitters to answer the technical integration questions that arise during sales meetings. The Eastern Regional Sales Engineer shall be able to work until 6pm EST in order to collaborate with the team operating out of Harbinger’s headquarters in southern California. Key Responsibilities Customer & Dealer Enablement Serve as the primary upfit subject-matter expert for customers and dealer partners Consult with customers to understand use cases, duty cycles, and operational requirements Recommend appropriate upfit solutions that align with Harbinger vehicle specs and performance parameters which includes providing technical guidance on how to power their hotel loads. Support sales teams with technical guidance during the sales process Provide battery integration guidance for upfits that wish to install the Harbinger stand alone battery pack. Upfit Strategy & Standards Define and maintain approved upfit configurations, compatibility guidelines, and best practices Build scalable frameworks for common customer applications (e.g., delivery, service bodies, refrigeration, utility, specialty builds) Develop configuration rules, constraints, and documentation to guide quoting and ordering Partner & Vendor Collaboration Work closely with third-party upfitters, body manufacturers, and equipment vendors Evaluate new upfit partners and solutions for compatibility and scalability Support partner onboarding and training efforts Cross-Functional Collaboration Partner with Engineering, Product, and Manufacturing to ensure upfit feasibility Communicate customer-driven requirements back into product roadmaps Support homologation, safety, and regulatory compliance where applicable Process & Tools Development Build repeatable workflows for upfit selection, validation, and approval Create internal and external documentation, playbooks, and enablement materials Support development of digital tools for configuration, quoting, and order management Continuous Improvement Track field feedback, warranty data, and customer satisfaction related to upfits Identify gaps, inefficiencies, and opportunities for improvement Recommend new standardized solutions based on market demand Qualifications Required 6–10+ years of experience in commercial vehicles, upfitting, body equipment, fleet solutions, or related fields 3+ years of systems engineering experience is a plus Capable of opening 3D files and viewing them Strong understanding of upfits such as box bodies, service bodies, refrigeration units, liftgates, cranes, racks, specialty equipment, etc. Experience working with dealers, OEMs, or fleet customers Ability to translate technical requirements into clear customer-facing guidance Strong project management and stakeholder coordination skills Excellent written and verbal communication Willingness to travel ~33%. Preferred Experience in electric vehicles, alterna…