Full-Time

Electrolyte Specialist

Eos Energy Storage

Eos Energy Storage

201-500 employees

Manufactures aqueous zinc battery energy storage

No salary listed

Company Does Not Provide H1B Sponsorship

Warrendale, PA, USA

In Person

Category
General Maintenance & Repair (1)

Get referred to Eos Energy Storage

See people who can refer or advise you

Requirements
  • A high school diploma or equivalent is required.
  • A minimum of 2 years of experience is required.
  • Training in hazardous materials, HAZWOPER, RCRA, Department of Transportation, SARA Title III, and environmental procedures is required, with an annual 80-hour refresher required.
  • The ability to lift up to 50 pounds occasionally is required.
  • The ability to work long hours, including 10- or 12-hour shifts, and weekends as scheduled is required.
  • The ability to work in a team environment is required.
  • The ability to operate within existing safety guidelines is required.
  • Demonstrated customer service excellence is required.
  • Reliable transportation is required.
  • Basic mechanical skills are required.
  • The ability to effectively communicate orally and occasionally in writing with coworkers and supervisors is required.
  • The ability to understand and quickly react to job-related oral or written directions, safety information, and communications in English is required.
Responsibilities
  • Physically receive and store full totes.
  • Track incoming quality-check status and segregate inventory by status.
  • Change empty totes for full totes at the fill station.
  • Ensure new totes recirculate and mix for at least 30 minutes before feeding the fill station.
  • Perform daily calibration of instrumentation associated with electrolyte feed and consumption and the precise fill requirements of each battery.
  • Maintain, repair, change out, and rebuild electrolyte pumps, valves, fittings, piping, and electrical solenoid switches.
  • Maintain a leak-free fill station.
  • Clean up spills in storage and at the fill station, dispose of materials according to Safety Data Sheet and Environmental, Health, and Safety standards, and act as the site leader for large-spill emergency-action coordination.
  • Ensure empty totes are completely empty and consolidate them when necessary.
  • Contact the warehouse when empty totes need to be shipped.
  • Physically ship empty totes.
  • Track inventory levels and warn Supply Chain when quantities approach minimum on-hand levels.
  • Perform spot checks on the fill station.
  • Complete hazardous-waste manifests according to Resource Conservation and Recovery Act and SARA Title III requirements, ensure documentation complies with Environmental Protection Agency and Occupational Safety and Health Administration standards, and assist with shipping hazardous waste.
Desired Qualifications
  • Familiarity with enterprise resource planning systems is a plus.
  • Forklift experience is highly desired.

Eos Energy Storage develops and manufactures aqueous zinc battery energy storage systems for commercial, industrial, utility, and renewable energy customers. The systems store electrical energy in an aqueous zinc chemistry and are designed for 3 to 12 hours of use to support grid resiliency, peak shaving, demand management, and intermittent renewable generation. The products are modular battery packs with simplified components aimed at reducing production costs and risks while delivering reliable storage for microgrids and large-scale projects. Compared with typical lithium-ion approaches, Eos focuses on a different chemistry and a streamlined design to provide cost-effective, safe energy storage for grid applications. The company’s goal is to accelerate the transition to clean energy by enabling reliable, affordable storage that boosts grid reliability and supports renewable integration.

Company Size

201-500

Company Stage

IPO

Headquarters

Edison, New Jersey

Founded

2008

Get referred to Eos Energy Storage

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Q2 2026 revenue hit $68.8 million, up 351%, with 6.5 GWh discharged lifetime.
  • The July 15, 2026 Golden Dome contract opens defense procurement and credibility.
  • Backlog reached $807 million and pipeline $24.6 billion, including 32% data-center demand.

What critics are saying

  • Q2 2026 revenue depended 80% on one project, exposing severe customer concentration.
  • Total borrowings reached $948 million by June 30, 2026, while losses persisted.
  • Manufacturing consolidation downtime cut 2026 guidance; execution slips can kill 2027 margin targets.

What makes Eos Energy Storage unique

  • Eos owns zinc-based Z3 batteries, avoiding lithium fire risk and cobalt dependence.
  • Its U.S.-manufactured Thorn Hill and Turtle Creek footprint targets domestic-content buyers.
  • Frontier Power USA bundles financing, construction, and ownership around Eos hardware.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

Paid Vacation

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

-2%

1 year growth

-1%

2 year growth

-2%
Yahoo Finance
Aug 5th, 2026
Eos Energy tightens revenue guidance to $300M-$350M as manufacturing consolidation begins

Eos Energy Enterprises reported a Q2 2026 net loss of $276 million, primarily from non-cash fair value adjustments of warrants and derivatives. The company tightened its 2026 revenue guidance to $300 million to $350 million due to manufacturing downtime during facility consolidation. Management is accelerating the consolidation of production into its Thorn Hill facility, which is expected to reduce conversion costs by 10% to 15% with a nine-month payback period. The company achieved record cube shipments and a 20% sequential output increase at its Turtle Creek facility whilst maintaining flat labour costs. Eos expects a 72-point improvement in adjusted gross margin over the next 12 months through material cost reductions and manufacturing efficiencies. The company anticipates closing the second year tranche of its advanced request loan by the end of Q3.

Yahoo Finance
Aug 5th, 2026
Eos Energy achieves record $68.8M Q2 revenue, up 351% YoY, secures $100M order and strategic DOD partnership

Eos Energy Enterprises reported record revenue of $68.8 million in Q2 2026, up 351% year-over-year and 21% sequentially. Cube deliveries increased 207% year-over-year. The company achieved its seventh consecutive quarter of gross margin improvement, with adjusted gross margin improving 132 points year-over-year. It ended the quarter with $364 million in total cash and nearly 100% free cash flow conversion from operations. The company's fleet has cumulatively discharged 6.5 gigawatt hours of energy. Its pipeline grew to $24.6 billion (nearly 112 GWh), up 31% year-over-year, with 51% being eight hours or longer and 32% data centre related. Eos narrowed its 2026 revenue guidance to $300 million to $350 million as it consolidates manufacturing operations. Despite revenue growth, the company reported a gross loss of $48.8 million and adjusted EBITDA loss of $71.4 million.

Bytes Europe
Aug 3rd, 2026
Eos Energy shares fall 39% as $57.6M fundraising sparks dilution concerns

Eos Energy Enterprises completed a $37.7 million composite units offering on 21 July 2026, followed by a $19.9 million shelf registration for common stock. Since the capital raises, the company's share price has declined sharply, with a 39.1% drop over 30 days and 73.94% year-to-date fall. The stock now trades at $3.38, below analyst fair value estimates. One narrative values the shares at $3.20, suggesting 5.6% overvaluation, whilst a discounted cash flow model estimates fair value at $4.52, implying 25.3% undervaluation. Investors face significant risks including the company's $939 million in liabilities against only $114 million in revenue, high customer concentration, and complex debt structure. The investment depends on zinc-based battery technology commercialisation and continued policy support.

Business News Today
Jul 23rd, 2026
Eos Energy raises $263M for Frontier Power USA, but weak rights demand and 31% dilution test investor confidence

Eos Energy Enterprises raised approximately $263 million for Frontier Power USA, combining a $37.7 million rights offering with institutional investments from Hudson Bay Capital Management and Cerberus Capital Management. The financing aims to support over $1 billion in deployable project capital for long-duration energy storage using the company's zinc battery systems. Shareholders subscribed for only 6.9 million of 27.4 million units offered, representing roughly 25% participation. Eos shares fell approximately 5.5% to $3.76 on 23 July, about 31% below the $5.481 rights offering price. The company reported preliminary second-quarter revenue between $68 million and $69 million, more than tripling from the prior year. However, gross margins remained negative at 69% to 73%, reflecting start-up expenses and low initial production volumes. The financing creates significant dilution, with approximately 20.6 million new shares issued immediately and warrants potentially adding another 39 million shares. Cerberus will control four of seven Frontier Power USA board seats.

Eos Energy Enterprises
Jul 15th, 2026
Eos Energy Enterprises Selected to Deliver Mission-Ready Power for Golden Dome for America

Eos Energy Enterprises won a U.S. defense contract to supply its zinc-based long-duration energy storage technology in support of the Golden Dome for America missile-defense initiative, providing resilient power for critical defense infrastructure.