---
title: 'Senior QA / Manufacturing Engineer at Fleetzero'
canonical: 'https://feeny.ai/job/senior-qa-manufacturing-engineer-fleetzero-houston-rhh7r4zsn7dk'
type: 'job'
last_seen: '2026-09-08'
---

# Senior QA / Manufacturing Engineer at Fleetzero

- **Company:** Fleetzero
- **Location:** Houston, TX
- **Compensation:** $100k–$150k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-04-30
- **Last confirmed live:** 2026-09-08
- **Apply:** https://jobs.lever.co/fleetzero/8629374f-5528-4791-bbda-38bac0da32b0

## Job description

Build the processes, tooling, and quality infrastructure that takes Fleetzero hardware from bench builds to production-ready assembly lines.

## ABOUT THE ROLE

You will own the intersection of quality and manufacturing engineering for battery module and BMS assembly. That means developing and qualifying assembly processes, writing work instructions and inspection criteria, and driving continuous improvement across the line. You will define what 'good' looks like for every assembly step — from incoming piece part inspection through end-of-line functional test.

This is a hands-on role. You will be on the floor developing tooling, troubleshooting process escapes, and running experiments alongside the assembly team. The right person has a bias for building systems that make quality repeatable and visible, and does not wait to be told what to inspect.

## BONUS POINTS

- Experience with battery module or power electronics assembly processes
- Background in aerospace, defense, automotive, or marine industries where process rigor and traceability are required
- Familiarity with IP67 or IP68 sealing processes and leak test methodologies
- Six Sigma, APQP, PPAP, or similar structured quality methodologies
- Experience using or programming electrical test equipment (even if not the primary owner of test development)

## About Fleetzero

## Company Overview
- **One-liner**: Fleetzero builds electric and hybrid propulsion systems for large ships, including modular marine battery systems and autonomy platforms, to decarbonize the maritime industry.
- **Entity Type**: Private (Series A)
- **Headquarters**: Houston, Texas, USA
- **Founded**: 2021
- **Founders**: Steven Henderson (CEO) and Mike Carter (COO)

## Core Business
- Primary industry: Maritime electrification, energy storage, and autonomous vessel technology.
- Target customers: Commercial shipping operators, shipyards, and fleet owners (B2B, enterprise).
- Mission or purpose: To decarbonize ocean freight by delivering safe, cost-effective battery-electric and hybrid solutions that eliminate the green premium.

## Products & Services
- **[Leviathan Modular Energy Storage System](https://www.fleetzero.com/)**: Scalable marine battery system delivering up to 3.4 MWh in a compact container footprint. Designed for high energy density, safety, and rapid payback (typically <6 years).
- **[Battery Barge](https://www.fleetzero.com/)**: A 55 MWh mobile charging platform that can charge multiple vessels simultaneously, expandable for larger operations.
- **[Modular Hull Construction](https://www.fleetzero.com/)**: Pioneering modular shipbuilding to lower construction costs and increase output, enabled by electric propulsion.
- **[Autonomy Platform](https://www.cbinsights.com/company/fleetzero)**: Integrated vessel navigation, control, and propulsion system for unmanned cargo operations, targeting underserved routes.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company).
- **Key Metric**: Total Funding – $59.73M raised (Series A as of 2026).
- **Notable Investors/Partners**: Maersk Growth, Breakthrough Energy, Obvious Ventures, Y Combinator (Winter 2022 batch).
- **Growth Signals**:
  - Selected (2025) to build the world’s longest-range hybrid-electric vessel.
  - Series A completed in 2026 with prominent climate and maritime investors.
  - Launched commercial autonomy platform for shipping in 2026.
  - Team grew to ~40 employees (as of Y Combinator profile, likely larger now).

## Competitive Advantages
- **Cost parity**: Leviathan batteries deliver double the power for half the price vs. other marine battery systems, enabling positive ROI within 2–6 years.
- **End-to‑end integration**: Fleetzero’s team (US Navy veterans, mariners, engineers) provides white‑glove service from design through commissioning.
- **Modularity**: Both energy storage and hull designs are modular, allowing rapid scaling and lower construction costs.
- **Safety focus**: The company refuses to deploy any product they wouldn’t sail on themselves, emphasizing safety above all.

## Strategic Focus
- Scaling modular battery production and modular hull construction to reduce shipbuilding costs.
- Expanding autonomy platform to open new cargo routes and improve access to underserved markets.
- Continuing to lower the cost of maritime electrification to make decarbonization economically viable for all vessel sizes.

## Why Work Here
- **Mission‑driven**: Join a team tackling one of the hardest climate challenges – decarbonizing global shipping. The work involves high‑voltage systems, cutting‑edge battery technology, and autonomous robotics.
- **Expert team**: Work alongside US Navy veterans, seafarers, and seasoned engineers in a hands‑on environment. The culture is described as demanding but rewarding: “The mission is difficult. The hours are long. The work demands skill, discipline, and resolve.”
- **Location**: Based in Houston, TX. Likely on‑site due to manufacturing and testing.
- **Growth trajectory**: Early employee at a well‑funded startup with major backers (Maersk, Breakthrough Energy) and clear commercial milestones already achieved.
- **Notable perks**: Not explicitly listed, but the company emphasizes “white‑glove service with calloused hands” – a blend of high‑engineering and practical maritime experience.

## Sources
1. [fleetzero.com](https://www.fleetzero.com/)
2. [fleetzero.com/about](https://www.fleetzero.com/about-fleetzero)
3. [ycombinator.com/companies/fleetzero](https://www.ycombinator.com/companies/fleetzero)
4. [cbinsights.com/company/fleetzero](https://www.cbinsights.com/company/fleetzero)
5. [jobs.lever.co/fleetzero](https://jobs.lever.co/fleetzero)

## Other roles at Fleetzero

- [Senior Test Engineer - Battery Systems](https://feeny.ai/job/senior-test-engineer-battery-systems-fleetzero-houston-vs1ep5wb17ee) — Houston, TX
- [Senior Mechanical Engineer](https://feeny.ai/job/senior-mechanical-engineer-fleetzero-houston-6dvkg3t1v1h3) — Houston, TX
- [Naval Architect - Marine Engineer](https://feeny.ai/job/naval-architect-marine-engineer-fleetzero-houston-yb02sz515wt3) — Houston, TX
- [Electrical Engineer - Harness/Wiring/Distribution](https://feeny.ai/job/electrical-engineer-harness-wiring-distribution-fleetzero-houston-zfzs4sydrwmr) — Houston, TX
- [Electrical Engineer - Power Systems](https://feeny.ai/job/electrical-engineer-power-systems-fleetzero-houston-s2qy5qfhbyat) — Houston, TX