Strategic Sourcing Specialist, Powertrain & Combustion Engines

Strategic Sourcing Specialist, Powertrain & Combustion Engines

Garden Grove, CA

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 the Strategic Sourcing Specialist for Combustion Systems, you will own the end-to-end procurement lifecycle for our combustion, engine, and powertrain components to support Harbinger's hybrid vehicle platforms. Joining a fast-paced and dynamic Supply Chain team, you will act as a true player-coach—balancing high-level sourcing strategy with the operational, day-to-day administrative details required to build a supply chain from the ground up.

Your impact will be immediate, driving cost-efficiency, securing critical supplier partnerships, and ensuring our production timelines are met as we scale our revolutionary medium-duty vehicles.

• Develop and execute both strategic and operational sourcing plans for various systems, managing high-level strategies while handling daily administrative procurement details.
• Source and evaluate global suppliers, building a resilient and scalable supply base tailored to our unique hybrid powertrain requirements.
• Negotiate pricing, contracts, and complex commercial terms to secure optimal value, quality, and delivery schedules.
• Manage ongoing supplier relationships and performance, resolving critical supply chain bottlenecks and driving continuous improvement.
• Drive cross-functional project management efforts, acting as the primary liaison between engineering, manufacturing, and external partners to keep programs on track.
• Design and build customized data trackers, KPIs, and dashboards entirely from scratch to monitor commodity performance and spend.
• Navigate a dynamic, rapidly changing startup environment, bringing structure to chaos and adapting quickly to shifting priorities.

• 5+ years of experience in strategic sourcing, commodity management, or procurement, ideally within automotive, commercial vehicles, or heavy manufacturing.
• Proficiency in data management and analytics, with expert-level skills in Google Sheets and advanced Excel (ability to build complex tracking models from scratch).
• Strong understanding of supplier management, total cost of ownership (TCO), and end-to-end procurement operations.
• Excellent negotiation, project management, and cross-functional communication skills.
• Bachelor's degree in Supply Chain Management, Engineering, Business Administration, or equivalent practical experience.

• Experience working specifically with Engines, Electric Drive Units (EDU), or Powertrain systems.
• Familiarity with early-stage, high-growth startup environments and a high tolerance for ambiguity and rapid scaling.
• Proven track record of building supply chain processes and dashboards from 0 to 1.
• Advanced degree or professional certification (e.g., APICS, CPSM, PMP).

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

$150,000 - $170,000 USD