Software Test Engineer

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.

Role Overview

As a Software Test Engineer focused on Telematics, you will be responsible for the end-to-end validation of Harbinger’s connectivity suite. This includes the Telematics Control Unit (TCU) , various vehicle ECUs , and the API interfaces that facilitate data flow between the vehicle and the cloud. You will ensure that vehicle data, remote commands, and over-the-air (OTA) updates are reliable, secure, and performant.

Key Responsibilities

• System Validation: Develop and execute comprehensive test plans for Telematics and Infotainment systems, ensuring seamless integration between hardware and cloud services.


• TCU/ECU Testing: Validate the functionality of Telematics Control Units, including cellular connectivity (4G/5G), GPS accuracy, and vehicle-to-cloud data logging.


• API & Cloud Testing: Test cloud-based interactions using APIs to verify that vehicle data is correctly transmitted and stored


• Automation Development: Design and maintain automated test frameworks using Python and Pytest to improve testing efficiency for connectivity features.


• Communication Protocols: Monitor and analyze vehicle bus traffic using tools like Vector CANoe or Intrepid Vehicle Spy (CAN, LIN, and Automotive Ethernet).


• HIL Integration: Work with Hardware-in-the-Loop (HIL) environments (dSPACE/Speedgoat) to simulate real-world driving conditions and connectivity edge cases.


• Defect Management: Identify, document, and root-cause software defects, collaborating closely with firmware and cloud developers for resolution.

Required Skills & Experience

• Education: Bachelor’s degree in Computer Engineering, Electrical Engineering, or a related field.


• Embedded Testing: 3+ years of experience in automotive software testing, specifically with TCUs or ECUs .


• Programming: High proficiency in Python for test automation and scripting.


• Protocol Knowledge: Strong understanding of automotive networks ( CAN/CAN-FD , Automotive Ethernet ) and internet protocols ( MQTT , , JSON , REST APIs ).


• Cloud Awareness: Experience testing cloud-based interactions or IoT devices that communicate with remote servers.


• Tools: Familiarity with requirements management (Polarion, JIRA) and version control (Git).

Preferred Qualifications

• Experience with OTA (Over-the-Air) update validation.


• Knowledge of cybersecurity standards for connected vehicles.


• Experience with Linux/Android Automotive operating systems.

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 View email address on jobs.jobcopilot.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.