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Software Engineer, Internal Apps (Backend)

Garden Grove, CA

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 Summary

Harbinger Motors is seeking a talented and experienced Backend Software Engineer to build the robust, scalable, and secure systems that power our next-generation electric vehicles and connected services. In this role, you will be instrumental in designing, developing, and maintaining critical backend infrastructure, data pipelines, and real-time communication systems. You will work on challenging problems at the intersection of automotive technology, IoT, and cloud computing, directly impacting the performance, safety, and functionality of our vehicles.

Responsibilities

  • Design, develop, and maintain highly scalable, reliable, and secure backend services and APIs, primarily using Go/Golang.
  • Build and optimize event-driven systems and real-time notification pipelines to handle high-throughput vehicle data and telemetry.
  • Architect and manage cloud infrastructure (especially AWS) leveraging Infrastructure-as-Code tools (e.g., AWS CDK, Terraform) to ensure automated, repeatable deployments and operations.
  • Develop and integrate with IoT protocols (MQTT, Protobuf) to facilitate real-time communication with our vehicle fleet.
  • Implement and enforce authentication and security standards (JWT, OAuth2, mTLS, TLS 1.3) to protect sensitive vehicle and customer data.
  • Integrate seamlessly with third-party APIs and services (e.g., authentication providers, PLM systems, charging networks).
  • Champion a strong testing mindset by writing comprehensive unit, integration, and end-to-end tests to ensure code quality and system reliability.
  • Contribute to and optimize CI/CD pipelines, Dockerization, and other modern development workflows to ensure efficient and automated software delivery.
  • Collaborate closely with cross-functional teams, including embedded software, infotainment, data science, and product management, to define requirements and deliver integrated solutions.
  • Troubleshoot and debug complex issues across the entire backend stack.
  • Stay current with emerging technologies and industry best practices, actively contributing to architectural discussions and technology choices.

Required Skills and Experience

  • 3+ years of experience in backend software development, with a strong preference for Go/Golang.
  • Proven experience designing and implementing event-driven systems and real-time notification pipelines.
  • Strong experience with cloud infrastructure (especially AWS), including services like EC2, S3, Lambda, DynamoDB, RDS, SQS, SNS, IoT Core.
  • Hands-on experience with Infrastructure-as-Code tools (e.g., AWS CDK, Terraform) for managing cloud resources.
  • Practical experience with IoT protocols (MQTT, Protobuf) and building real-time systems.
  • Familiarity with common authentication and security standards (JWT, OAuth2, mTLS, TLS 1.3).
  • Experience integrating with third-party APIs and services (e.g., payment gateways, external data sources).
  • Strong testing mindset with demonstrated experience writing robust unit, integration, and end-to-end tests.
  • Proficiency with CI/CD pipelines, Docker, and modern development workflows.
  • Experience with relational and/or NoSQL databases.
  • Excellent problem-solving, analytical, and debugging skills.
  • Strong communication and collaboration skills, with the ability to articulate technical concepts to both technical and non-technical stakeholders.

Preferred Qualifications

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
  • Experience in the automotive, IoT, or a similar real-time data-intensive industry.
  • Knowledge of vehicle data buses (e.g., CAN, Ethernet) and related data structures.
  • Experience with microservices architecture.
  • 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

$120,000 - $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.

 

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