Senior System Quality Engineer

Terawatt Infrastructure

$125K — $140K *
Technical Services
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years in quality, reliability, or systems engineering, preferably in power electronics or EV charging
  • Ability to read electrical schematics and interpret hardware test reports
  • Expert in high-voltage systems and protocol-level debugging in EV charging
  • Demonstrated expertise with ISO 15118 and OCPP communication protocols
  • Hands-on experience with energy management infrastructure including DERs
  • Strong communication skills for cross-functional collaboration in remote settings
  • Ability to handle ambiguity and manage multiple projects

Responsibilities

  • Define and maintain quality standards for Terawatt's charging systems
  • Promote a product-driven engineering culture for innovation
  • Analyze field performance data to identify and prioritize issues
  • Develop comprehensive QA testing standards focusing on key protocols
  • Perform root cause analysis on system issues using network analysis tools
  • Collaborate with vendors to address defects and ensure specifications are met
  • Ensure consistency between lab configurations and field deployments

Benefits

  • Comprehensive benefits package
  • Performance-based incentives
  • Opportunities for professional growth and development
  • Encouragement of diverse backgrounds and perspectives in the workplace
  • Fostering an inclusive company culture where new ideas are welcomed
Full Job Description
Role Description

As a member of the Terawatt technology team in the role of Systems Quality Engineer you will own the processes and data that keep our charging systems performing to spec: defining what "good" looks like, measuring against it, and driving the engineering and operations teams to close the gap when it doesn't. You will be responsible for validating the quality and performance of our full stack products, from End-to-End electrical hardware and software interactions, with a focus on high-power EV charging solutions and energy management systems. This role sits inside the technical organization with strong ties to field operations, software, and hardware procurement.

Core Responsibilities

  • Define and maintain quality standards for Terawatt's charging systems, uptime thresholds, fault rates, charge session success rates, hardware failure modes, and build the measurement infrastructure to track them
  • Contribute to a product-driven engineering culture that champions diverse ideas and bottom-up innovation
  • Analyze field performance data to identify systemic failures, distinguish one-off events from recurring defect patterns, and prioritize engineering response accordingly
  • Develop and implement comprehensive QA testing standards, specifically focused on OCPP and ISO 15118 communication protocols and system logs
  • Triage and perform advanced root cause analysis on product or system issues, using network analysis tools like Wireshark and .pcap files to debug vehicle-to-charger communication and complex field failures
  • Collaborate closely with vendors to manage and support resolution of critical firmware, hardware, and integration defects, ensuring alignment with technical specifications and SLAs for timely delivery and reliable operation of new features
  • Ensure lab-to-site validation consistency by verifying that lab configurations and units exactly match field deployments to mitigate risks of unforeseen operational differences
  • Develop and maintain inspection protocols for new site commissioning; ensure sites are handed off to operations meeting defined quality gates
  • Collaborate with Operations to define and validate Standard Operating Procedures (SOPs) at the lab before deployment, and coordinate logistics for the delivery and return of large EVSE test units
  • Contribute to the quality and reliability planning for charging & energy management systems, including local site energy management infrastructure (energy meters, local controllers, and DERs like BESS & Solar)
  • Collaborate with Terawatt Operations and other stakeholders to ensure highly reliable operations and quality customer experiences at our charging facilities


Minimum Qualifications

  • 5+ years in a quality engineering, reliability engineering, or systems engineering role - ideally in power electronics, energy storage, EV charging, or industrial electrical equipment
  • Ability to read and interpret electrical schematics, system architecture diagrams, and hardware test reports
  • Expertise in high-voltage and low-power electrical systems, including deep, protocol-level debugging of complex in-field customer issues in the EV charging space.
  • Demonstrated hands-on debugging expertise of communication protocols between EV & EVSE including ISO 15118-2 & 20, DIN 70121, and OCPP protocols.
  • Experience in practical understanding of CCS, NACS, MCS standards
  • Hands-on experience validating local site energy management infrastructure including energy meters, local controllers, load limiting, and complex grid interactions with DERs (BESS & Solar).
  • Strong communication skills to collaborate effectively in a dynamic, cross-functional remote work environment
  • Ability to work with ambiguity, manage multiple projects and independently collaborate with internal teams and external partners


Preferred Qualifications

  • Working knowledge of OCPI & OCPP 2.* standards
  • Familiarity with charge management systems and fleet telematics data
  • Working experience with Hardware and IoT integrations into backend services
  • Hands-on experience with EV/EVSE Emulator systems for functional and integration testing
  • Hands-on experience with automation in Python and integrating with CI/CD pipelines


$125,000 - $140,000 a year

Compensation for this role is determined by several factors, including the cost of labor in specific geographic markets, and these ranges are intended to provide a helpful reference. The actual compensation offer will be based on the candidate's location, skills, level of expertise and experience, and internal equity considerations. In addition to base salary, we offer a comprehensive benefits package and, where applicable, performance-based incentives.

We are building a team that represents a variety of backgrounds, perspectives, and skills. At Terawatt, we continuously strive to foster inclusion, humility, energizing relationships, and belonging, and welcome new ideas. We're growing and want you to grow with us. We encourage people from all backgrounds to apply.

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