Senior System Quality Engineer

Terawatt Infrastructure

Los Angeles, CA

Posted on: 2026-06-09

Category: emobility

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Employment type:

Full time

Experience required:

Senior

Salary

Salary not provided

About the company:

Terawatt Infrastructure is a commercial electric vehicle (EV) charging infrastructure platform headquartered in the United States, focused on serving autonomous vehicles, rideshare fleets, and trucking fleets. The company designs, builds, and operates purpose-built charging sites tailored to the operational demands of commercial fleet operators, offering both private and shared charging solutions with features such as pull-through stalls, high-powered chargers, real-time data dashboards, and a reservation system. With over $1 billion raised, Terawatt positions itself as the operator of the nation's largest portfolio of purpose-built commercial fleet charging sites. Terawatt's mission centers on accelerating the transition to electric and autonomous transportation by removing the infrastructure burden from fleet operators, allowing them to focus on their core business rather than charging logistics. The company works collaboratively with cities, municipalities, and utilities to strategically site and power its facilities, ensuring community value and maximizing energy output and economic efficiency. Its hardware lab stress-tests all deployed equipment to guarantee charger uptime and vehicle-charger compatibility. What distinguishes Terawatt is its vertically integrated approach: the company handles land acquisition, utility coordination, equipment procurement, site construction, and ongoing operations under one platform. This end-to-end model, combined with its scale, gives Terawatt strategic pricing advantages and faster deployment timelines compared to more fragmented competitors in the EV charging space.

About Terawatt Infrastructure

The once-in-a-century transition to autonomous and electric vehicles is underway and will require a multi-trillion-dollar investment in energy and charging infrastructure, and the real estate to site it on. Terawatt is the leader in delivering large-scale, turnkey charging solutions for companies rapidly deploying AV and EV fleets. Whether it’s an urban mobility hub or a carefully located multi-fleet hub for semi-trucks, Terawatt brings the talent, capabilities, and capital to create reliable, cost-effective solutions for customers on the leading edge of the transition to the next generation of transport.

With a growing portfolio of sites across the US in urban hubs and along key logistics and transportation corridors and logistics hubs, Terawatt is building the permanent transportation and logistics infrastructure of tomorrow through a robust combination of capital, real estate, development, and site operations solutions. The company develops, finances, owns, and operates charging solutions that take the cost and complexity out of electrifying fleets.

At Terawatt, we execute humbly and with urgency to provide tailored solutions for fleets that delight our clients and support the transition of transportation.

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.

If a reasonable accommodation is required to fully participate in the job application or interview process, or to perform the essential functions of the position, please contact [email protected].

Terawatt Infrastructure is an equal-opportunity employer.

Our Technology

Terawatt is not a traditional infrastructure operator. Our technology platform transforms a portfolio of sites into a reliable, intelligent network — through advanced power management, operational optimization, and data-driven systems that back our customers with hard performance guarantees. That's what makes us a de-risked operator and a category-defining company.

We sit at a rare intersection: software, hardware, real estate, energy systems, and live site operations. The work is concrete and the stakes are real. The code you write today runs physical infrastructure tomorrow. You'll build systems that orchestrate megawatts of power across hundreds of chargers, ingest millions of telemetry events per day, and keep autonomous fleets, rideshare vehicles, and heavy-duty trucks moving — in real time.

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

Bachelor's degree in Electrical Engineering, Power Systems, or a related field

Willingness to work onsite at our lab in Baldwin Park, CA