Technical Accounting Manager, SEC Reporting

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.We are seeking a Technical Accounting Manager, SEC Reporting to help build the foundation for external reporting, technical accounting, and financial transparency. This role will work closely with executive leadership, external auditors, and legal counsel to ensure Harbinger meets the highest standards of financial reporting and compliance. What You’ll Do Assist in drafting Form S-1, including financial statements, MD&A, and disclosures Build scalable SEC reporting processes, calendars, and controls Partner with legal, investor relations, and external advisors  Own External Financial Reporting Prepare and review SEC filings, including: Form 10-K Form 10-Q 8-K Earnings releases and investor materials Ensure financial statements comply with U.S. GAAP and SEC disclosure requirements Coordinate the preparation of footnotes, technical accounting memos, and disclosure checklists Partner with Auditors & Advisors Serve as a primary contact for external auditors and technical accounting advisors Support quarterly reviews and annual audits Assist with complex accounting areas and disclosure matters Technical Accounting & Policy Development Research and document technical accounting issues Draft accounting memos related to new or complex transactions Assist in implementing accounting standards and SEC reporting policies Strengthen Internal Controls Support development of SOX-ready processes and documentation Assist with establishing internal controls over financial reporting Collaborate with accounting and finance teams to improve reporting workflows What We’re Looking For Required Qualifications 5–8+ years of experience in accounting or financial reporting Big Four public accounting experience strongly preferred Experience with SEC reporting and public company filings Strong knowledge of U.S. GAAP and SEC disclosure requirements Experience preparing or reviewing 10-K and 10-Q filings Highly Preferred Experience supporting or participating in an IPO process Experience with S-1 preparation Experience working with high-growth companies or public company readiness Experience with financial reporting systems  What Makes You Successful in This Role Detail-oriented with a strong commitment to accuracy and transparency Comfortable working in a fast-moving, startup environment Ability to translate complex accounting topics into clear disclosures Strong cross-functional communication with legal, finance, and executive leadership Ownership mentality and ability to build processes from scratch Key Benefits & Perks: Comprehensive Health, Dental...