---
title: 'Plant Technician at Limelight Steel, Inc.'
canonical: 'https://feeny.ai/job/plant-technician-limelight-steel-inc-headquarters-ezy8t4hjen97'
type: 'job'
last_seen: '2026-10-30'
---

# Plant Technician at Limelight Steel, Inc.

- **Company:** Limelight Steel, Inc.
- **Location:** Headquarters
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-01
- **Last confirmed live:** 2026-10-30
- **Apply:** https://jobs.ashbyhq.com/limelight-steel/e24bae8d-42a3-4338-bfc1-12adde18293d

## Job description

## Role Summary

As our Plant Technician, you will play a crucial role in supporting our Plant Operations team to operate and maintain equipment that drive our production plant.

Roles & Responsibilities:

- Adhere to safety protocols to promote a safe work environment.
- Support installation, mechanical assembly, and commissioning of laboratory and plant equipment.
- Operate and maintain equipment, including setup, monitoring, troubleshooting, and preventative maintenance.
- Monitor processes and resolve issues through periodic checks and proactive problem-solving.
- Maintain a clean, organized, and safe work area.
- Manage inventory by routine stocking of materials and supplies
- Perform all other duties, as assigned.

## Qualifications

- Minimum of 3 years experience in industrial settings.
- Proficiency in operating large equipment and machinery.
- Strong critical thinking and problem-solving skills, with the ability to approach problems analytically.
- Experience working both independently and collaboratively in fast-paced environments.
- Exceptional attention to detail.
- Excellent verbal and written communication skills.
- Ability to safely lift and carry up to 50 lbs.
- Role will involve standing for periods of time and working in active lab or industrial environments.

## Nice to Have

- Technical degree, trade certification, or equivalent hands-on experience in an industrial or manufacturing environment
- (e.g., maintenance programs, welding certifications, or similar technical training).
- Familiarity with vacuum equipment.
- Experience with high-temperature furnaces and materials.
- Proficiency in preparing and analyzing metallurgical samples.

## Benefits

- Competitive stock option package
- Comprehensive health benefits that include:
- Full premium coverage for PPO Gold for employees with 80% coverage for dependents
- Full premium coverage for Vision and Dental for employees
- Generous time-off schedule
- 20 days paid time off (accrued according to number of hours worked)
- 10 holidays (personalized to the holidays you observe)
- 401(k) with a 4% safe harbor company match
- 2x weekly catered team lunches
- A team of curious, passionate, kind, and courageous people committed to eliminating industrial emissions that contribute to climate change
- Unparalleled opportunities for growth, leadership, and project ownership in a dynamic and rapidly-growing startup company

## Compensation

The hourly rate for this role is $35-40, plus meaningful equity. Final comp will be based on experience and level.

## About Limelight Steel, Inc.

## Company Overview
- **One-liner**: Limelight Steel uses arrays of high-efficiency lasers to electrify primary steelmaking, delivering clean industrial heat that processes iron ore into iron metal with zero direct CO₂ emissions and significant energy savings.
- **Entity Type**: Private (Pre-Seed stage)
- **Headquarters**: Oakland, California, USA
- **Founded**: 2021
- **Founders**: Andy Zhao (Co-founder & CTO), Michael Lwin DuMont (CEO)

## Core Business
- Primary industry: Industrial manufacturing / Steel production / Clean energy technology
- Target customers: B2B – steel producers and integrated steel manufacturers seeking to decarbonize their ironmaking processes
- Mission: Eliminate fossil fuels from steelmaking, which currently contributes over 7% of global CO₂ emissions, by providing clean industrial heat specifically tuned for iron ore.

## Products & Services
- **Laser Furnace (Electric Ironmaking Technology)**: A patented photonic furnace that uses laser diode arrays to heat iron ore to >1,600 °C, enabling thermal decomposition into molten iron and oxygen. The system uses commercially available laser components (similar to those used in projectors) to reduce cost and accelerate scale-up.
- **Laser Diode Arrays**: Arrays of small, postage-stamp-sized laser diodes that uniformly illuminate large areas of ore, enabling high throughput.
- **Thermal Decomposition Process**: Replaces the chemical reduction agents (coke/coal) used in blast furnaces with laser-driven heat, avoiding the need for green hydrogen or specific ore grades.

## Market Standing
- **Valuation**: Not disclosed
- **Key Metric**: Pre-Seed funding round closed on Dec 6, 2021 (amount undisclosed); subsequently awarded at least one U.S. Department of Energy / ARPA-E grant (reports indicate up to $28 M in federal funding for advanced iron and steel clean-tech).
- **Notable Investors**: Khosla Ventures, Capricorn Investment Group, Cantos, Incite Ventures, Collaborative Fund, and others. (Website notes “backed by industry-leading frontier tech investors.”)
- **Growth Signals**:
  - Named one of *Popular Science*’s “50 Greatest Innovations of 2024”
  - Listed on *Forbes* “30 Under 30 – Energy” (2024)
  - Included in the *Cleantech Group* “50 to Watch” (2024)
  - Featured at the 2025 ARPA‑E Energy Innovation Summit
  - Small, growing team (≈10–20 employees based on published roles and team page).

## Competitive Advantages
- **Patented laser furnace** that processes all commercial iron ore grades (not limited to high‑grade ore or specific feedstocks).
- **Up to 20–40% energy savings** over traditional blast furnaces and competing electric methods.
- **Zero direct CO₂ emissions** – no need for carbon‑based reducing agents, avoiding the massive emissions footprint of conventional steelmaking.
- **Leverages falling laser costs** from the telecom and consumer electronics industries, enabling a path to cost‑parity with fossil‑fuel‑based steel.
- Avoids the scale‑up challenges of green‑hydrogen‑based ironmaking and the ore‑grade restrictions of electrolysis approaches.

## Strategic Focus
- **Scale‑up**: Currently operating a laboratory demonstration system with 1.5 kW laser power processing 10–20 g of ore. Next step is a 150 kW pilot capable of producing up to 100 tons of steel per year.
- **Commercialization**: Validate technology at pilot scale, secure additional funding/partnerships with steel producers, and build a first commercial facility.
- Ongoing R&D into laser efficiency, furnace durability, and process integration with downstream steelmaking equipment.

## Why Work Here
- **Impact‑driven mission**: Directly tackle one of the hardest‑to‑abate industrial sectors; every tonne of steel produced with Limelight’s technology avoids roughly 2 tonnes of CO₂.
- **Culture**: The company states it is “building a diverse, courageous, and kind team that is ecstatic about frontier industrial technology.”
- **Team & environment**: Small, cross‑disciplinary team (engineers, scientists, operations) working out of an Oakland lab with hands‑on prototyping and testing. Offers exposure to cutting‑edge photonics, process engineering, and industrial scale‑up.
- **Notable perks**: Not specified; likely a fast‑paced startup environment with equity, autonomy, and direct influence on technology direction.

## Sources
1. [Limelight Steel – Homepage](https://www.limelightsteel.com/)
2. [Limelight Steel – Careers Page](https://jobs.ashbyhq.com/limelight-steel)
3. [Limelight Steel – About Us / Team](https://www.limelightsteel.com/about-us)
4. [CB Insights – Limelight Steel Company Profile](https://www.cbinsights.com/company/limelight-steel)
5. [Crunchbase – Limelight Steel](https://www.crunchbase.com/organization/limelight-steel)
6. [MIT Technology Review (via CB Insights) – “4 technologies that could be used to produce these chemicals” (features Limelight Steel at ARPA‑E summit)](https://www.cbinsights.com/company/limelight-steel#news)

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