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Software Engineer, Internal Apps (Backend)

Harbinger

Garden Grove, CA
Full Time
Mid Level
120k-160k
2 days ago

Job Description

About the Role

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 support the growing demand for medium-duty EVs and Hybrids. Leveraging a foundation of proprietary, in-house developed vehicle technologies designed specifically for commercial and specialty vehicles, Harbinger is bringing a first-of-its-kind EV platform to market, priced at acquisition parity to traditional diesel vehicles. Harbinger: Familiar Form, Revolutionary Foundation. 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.

Key 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.

Requirements

  • 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.

Nice to Have

  • 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.

Qualifications

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.

Benefits & Perks

  • 100% Comprehensive Health Coverage: You are covered with top-tier medical, dental, and vision insurance.
  • Accelerate Your Wealth: As an early stage employee, you'll have the opportunity to rev up your financial future with early-stage stock options.
  • Unleash Your Time: Take control of your work-life balance. Salaried teammates receive flexible PTO and the freedom to celebrate holidays and wellness days as you see fit.
  • Cruise into Vacations: Enjoy an exciting annual vacation stipend to help you recharge your batteries.
  • Fuel Your Day: Forget brown bag lunches; we've got you covered with paid lunches and dinners to keep you energized.

Working at Harbinger

Harbinger is committed to ensuring that our hiring process is accessible for persons with disabilities. We value innovation, collaboration, and dedication to shaping the future of sustainable transportation. We offer a dynamic work environment that rewards hard work and expertise, emphasizing continuous growth and technological advancement.

Apply Now

Job Details

Posted AtJun 20, 2025
Salary120k-160k
Job TypeFull Time
ExperienceMid Level

About Harbinger

Website

harbingermotors.com

Company Size

251-500 employees

Location

Garden Grove, CA

Industry

Other Transportation Equipment Manufacturing

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