General inquiries
info@arcternventures.com
Internal Audit Manager
Harbinger
Garden Grove, CA, USA
USD 140k-160k / year + Equity
Posted on Apr 9, 2026
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.
Job Overview
We are seeking an experienced Internal Audit Manager to build and lead Harbinger’s internal audit function. This role will be instrumental in strengthening internal controls, improving operational efficiency, and supporting audit readiness as the company scales.
This individual will partner cross-functionally across Finance, Operations, Supply Chain, IT, and Engineering to assess risk, implement scalable processes, and ensure compliance with regulatory requirements, including readiness for SOX.
What You’ll Do
Internal Controls & SOX Readiness
- Lead the design, implementation, and ongoing evaluation of internal controls over financial reporting (ICFR)
- Prepare the organization for SOX compliance, including documentation, testing, and remediation
- Partner with external auditors to support audit execution and minimize disruptions
Audit Execution
- Develop and execute a risk-based internal audit plan across financial, operational, and compliance areas
- Conduct audits across key functions (e.g., manufacturing, inventory, procurement, revenue, IT systems)
- Identify control gaps, inefficiencies, and process improvement opportunities
Risk Management & Advisory
- Establish enterprise risk assessment processes and maintain a dynamic risk register
- Provide recommendations to leadership on mitigating operational and financial risks
- Act as a strategic advisor to business leaders on controls, scalability, and best practices
Process Improvement
- Drive standardization and documentation of key business processes
- Recommend and implement automation and system improvements to enhance control environments
- Promote a culture of accountability and continuous improvement
Cross-Functional Collaboration
- Partner closely with Accounting, Finance, Legal, IT, and Operations teams
- Support special projects, including system implementations and new product/process launches
- Help prepare the organization for IPO readiness from a controls and compliance perspective
What We’re Looking For
Required Qualifications
- Bachelor’s degree in Accounting, Finance, or related field
- 6–10+ years of experience in internal audit, external audit, or a combination (Big 4 experience strongly preferred)
- Strong knowledge of SOX compliance, internal controls, and audit methodologies
- Experience in a manufacturing, automotive, or hardware environment preferred
- Demonstrated ability to operate in a fast-paced, high-growth or startup environment
Preferred Qualifications
- CPA, CIA, or equivalent certification
- Experience supporting IPO readiness or public company compliance
- Familiarity with ERP systems (e.g., NetSuite, SAP) and data analytics tools
- Experience auditing inventory, cost accounting, and supply chain processes
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—$160,000 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 info@harbingermotors.com.
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.