General inquiries
info@arcternventures.com
Manager, Software Engineering
Harbinger
Software Engineering
Garden Grove, CA, USA
USD 160k-220k / year + Equity
Posted on Oct 22, 2025
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.
Manager, Software Engineering
Harbinger Motors is seeking an experienced and dynamic Manager, Software Engineering with a strong software engineering background to actively lead, mentor, and contribute alongside our talented team of engineers. In this pivotal role, you will be instrumental in shaping the technical direction and successful delivery of robust applications across our innovative suite, encompassing both user interfaces and scalable backend services. This includes critical platforms like our Fleet Dashboard, End-of-Life (EOL) Tool, Diagnostic Tool (Service), Feature Configurator (Sales), and Log Viewer (Analytics). You'll guide your team in developing highly performant, scalable, and intuitive solutions that directly impact our business and customers, often by diving into the code yourself.
We're looking for a hands-on leader who can balance deep technical expertise across multiple languages and frameworks with effective team management, fostering a collaborative environment where engineers can thrive and deliver exceptional results through technical leadership by example.
Responsibilities:
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Lead by Example & Mentor: Lead, mentor, and grow a diverse team of full-stack software engineers, fostering a culture of technical excellence, collaboration, and continuous learning. Actively participate in the design, development, and debugging of complex features, serving as a technical role model and contributing code when necessary.
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Technical Strategy & Vision: Define and drive the technical strategy and roadmap for full-stack development, ensuring alignment with overall product goals and architectural best practices. Be a key voice in architectural decisions, guiding the team through complex technical challenges.
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Project Leadership & Delivery: Oversee the end-to-end software development lifecycle for critical applications, ensuring timely delivery of high-quality, scalable, and maintainable solutions. This includes frontend (React/Next.js/TypeScript) and backend (Python/GoLang) components for applications like the Fleet Dashboard, EOL Tool, Diagnostic Tool, Feature Configurator, and Log Viewer.
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Architectural Guidance & Implementation: Provide strong technical guidance and oversight in the design, development, and implementation of complex systems, leveraging expertise in TypeScript, React, Next.js, Python, and GoLang. Roll up your sleeves to prototype solutions, tackle critical bugs, and optimize performance alongside your team.
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Cross-Functional Collaboration: Partner closely with product managers, UX/UI designers, and other engineering teams to translate business requirements into technical specifications and deliver cohesive, user-centric features and robust backend services.
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Code Quality & Standards: Establish and enforce coding standards across both frontend and backend domains. Conduct comprehensive code reviews, providing detailed, constructive feedback, and actively contribute to the codebase to maintain high standards. Promote robust testing methodologies (unit, integration, e2e) to ensure the stability, performance, and maintainability of our codebase.
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Talent Management: Actively participate in the hiring process, onboard new engineers, conduct performance reviews, and support the professional development and career growth of your team members.
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Process Improvement: Continuously evaluate and improve engineering processes, tools, and practices to maximize team efficiency, productivity, and project predictability.
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Technical Problem Solving: Guide the team in troubleshooting complex full-stack issues, optimizing application performance, and ensuring a seamless and reliable user experience from client to server. Be prepared to deep-dive into technical problems and propose solutions.
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Technology Advancement: Stay abreast of emerging full-stack technologies, frameworks, and industry trends, evaluating and recommending adoption where beneficial to enhance development efficiency and product capabilities.
Required Qualifications:
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6+ years of professional experience in full-stack software development, with at least 3+ years in a leadership or management role overseeing engineering teams.
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Proven ability to remain hands-on with code while managing a team, demonstrating recent contributions to a codebase.
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Deep expertise in frontend technologies: including React.js and its ecosystem (hooks, context API, state management), and TypeScript, with proven experience building and scaling complex user interfaces.
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Extensive experience with Next.js for server-side rendering, static site generation, and building performant production-ready applications.
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Strong proficiency in backend development with demonstrable experience in Python (e.g., Django, Flask, FastAPI) and/or GoLang.
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Familiarity with database technologies (e.g., SQL, NoSQL) and API design principles (RESTful, GraphQL).
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Demonstrable experience with modern JavaScript testing frameworks (e.g., Jest, React Testing Library, Cypress) and a commitment to test-driven development.
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Solid understanding of modern web development concepts, including HTML5, CSS3, responsive design, accessibility standards, and web performance optimization.
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Proficiency with version control systems (e.g., GitHub, Bitbucket) and experience managing complex branching strategies.
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Exceptional leadership, mentoring, and coaching skills, with a proven ability to motivate and develop high-performing engineering teams.
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Excellent problem-solving, analytical, and critical thinking skills across the full stack.
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Outstanding communication and interpersonal skills, with the ability to effectively articulate complex technical concepts to both technical and non-technical stakeholders, and to influence decisions across teams.
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Proven ability to manage multiple concurrent projects, prioritize effectively in a dynamic environment, and consistently meet deadlines.
Bonus Points:
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Experience with UI/UX design principles and a strong user-centric mindset.
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Familiarity with cloud platforms (AWS, Azure, GCP) and CI/CD pipelines.
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Experience with containerization (Docker, Kubernetes).
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Mobile Development experience (Flutter, React Native, etc.).
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Experience in the automotive or fleet management industry.
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A strong portfolio or contributions to open-source projects.
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
$160,000—$220,000 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.