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Solestial

EHS Manager

Become an EHS Manager at Solestial in Tempe, Arizona, leading safety programs in cutting-edge solar power manufacturing. Ensure compliance with EHS regulations and foster a safety-first culture. Enjoy a competitive salary, equity, and comprehensive benefits from day one.
Solestial
Solestial
Tempe, Arizona, United States   On-site   Full Time  UTC-07:00

Solestial

Company Overview

Solestial

Tempe, AZ, United States

2013

Approximately 1,100 employees (source: asu.edu). Revenue figures are not disclosed as it is a private company (source: solestial.com).

What They Do

Solestial specializes in silicon photovoltaics engineered specifically for space applications, focusing on the development of radiation-hardened solar cells, modules, and arrays designed for satellites and spacecraft (source: solestial.com). Their core technology features ultrathin, flexible silicon heterojunction solar cells that achieve efficiencies of up to 20%, with a Generation 2 product expected to be available in 2026 (source: solestial.com). These innovative cells are capable of self-annealing radiation damage at operating temperatures as low as 65°C, a significant advancement over traditional silicon cells that typically degrade in high-radiation environments (source: satnow.com). Solestial's product offerings include individual solar cells, flexible solar power modules, and complete solar arrays, all designed to meet the needs of various satellite constellations and missions (source: solestial.com). Their target markets encompass commercial satellite constellations in low Earth orbit (LEO), smallsats, CubeSats, and even lunar settlements, providing a cost-effective alternative to traditional III-V multijunction cells (source: satnow.com).

Projects & Track Record

While Solestial has not yet completed any fully operational flight projects, they have secured over $7 million in Small Business Innovation Research (SBIR) contracts from notable organizations such as NASA and the National Science Foundation (source: satnow.com). Recently, they were awarded a $1.2 million Direct-to-Phase II SpaceWERX contract to develop a rapidly manufacturable 1 kW solar array wing for U.S. Space Force small satellites, showcasing their innovative approach to solar technology (source: satnow.com). Ongoing projects include scaling their second-generation solar cells for flight deployments by late 2025, with production ramping to 1 MW/year through a partnership with Meyer Burger (source: solestial.com). Their key clients include EnduroSat AD, with whom they have a sales agreement for radiation-hardened modules on satellites launching in 2026, and DCUBED, with whom they debuted a new solar array product at the Space Tech Expo (source: solestial.com).

Recent Developments

In October 2025, Solestial announced a significant sales agreement with EnduroSat AD to supply radiation-hardened silicon solar power modules for next-generation satellites set to launch in 2026 (source: solestial.com). Earlier, in August 2024, they entered into a strategic manufacturing partnership with Meyer Burger, aiming to scale production to over 1 MW/year of ultra-thin cells and modules by mid-2025 (source: solestial.com). Additionally, Solestial received a $1.2 million SpaceWERX Direct-to-Phase II contract for a 1 kW smallsat solar array wing, further solidifying their position in the space solar market (source: satnow.com). The company also achieved a significant milestone when the CEA validated their low-temperature radiation-curing technology, confirming its effectiveness in self-recovery at operating temperatures (source: solestial.com).

Working There

Solestial is focused on fostering innovation-driven growth, particularly in roles related to manufacturing, research and development, engineering, and operations to support the rapid scaling of solar cell and module production at their Tempe facility (source: solestial.com). The company is actively hiring for positions at their headquarters and the newly opened Warner manufacturing plant, with a focus on mass-producing thin wafers, cell metallization, and module integration (source: solestial.com). Departments likely include solar cell engineering, module assembly, quality testing, and business development, reflecting their roots in advanced research from Arizona State University (source: asu.edu). The company culture is characterized by a dynamic growth environment and a relentless pursuit of innovation, with team members sharing a passion for solar technology and collaboration with customers (source: solestial.com). While specific benefits are not detailed in available sources, the careers section invites individuals passionate about space solar innovation to join their team (source: solestial.com).

Contact


Last updated on 2025-12-27 | Report an issue

We're Solestial, and we are building cutting-edge silicon solar power for space. Our tech is designed to survive the extremes-radiation, vacuum, launch shock-and deliver reliable energy to satellites, lunar missions, and beyond. We are a fast-growing startup backed by strategic, experienced investors in the Space and High Tech sectors, and we're on a mission to make off-world energy as scalable and dependable as it is here on Earth.

As we scale our manufacturing operations, we're looking for an EHS Manager who will lead environmental, health, and safety programs across our labs and production spaces. This role sits at the intersection of compliance, safety culture, and operational excellence helping our teams push the boundaries of innovation while driving progress with precision in a safe, healthy, and sustainable workplace. This is an exciting position as part of a positive, supportive, and passionate team! A competitive compensation package, including equity and full benefits (see below), will be offered.

Your Mission

  • Help establish and lead a world-class, safety-first culture at Solestial
  • Ensure compliance with federal, state, and local EHS regulations and requirements
  • Serve as the site lead, providing technical and regulatory guidance on emerging EHS issues
  • Partner closely with Facilities, Engineering, and Operations teams on various projects
  • Develop, implement and continuously improve safety training employees and contractors; track and manage training requirements
  • Lead incident investigations, root cause analysis, and corrective action implementation
  • Conduct safety audits and track completion of action items
  • Support development, operation, and continuous improvement of gas monitoring systems
  • Develop, implement, and oversee chemical safety programs, including handling, storage, labeling, and disposal, to ensure compliance with regulations and protection of personnel.
  • Lead Emergency Action Plan development and ongoing readiness
  • Develop and maintain Job Hazard Analysis program
  • Manage PPE and first aid kit inventories
  • Coordinate emergency shower, eyewash station, and fire extinguisher inspections
  • Maintain and update facility SDS documentation and chemical inventories.

What You Bring

  • Bachelor's degree in EHS, Engineering, Materials Science, Chemical Engineering, or related field
  • 5+ years of experience in EHS program development and operational oversight
  • Experience with occupational safety programs and OSHA standards
  • Background in semiconductor, electronics, solar manufacturing, or other chemically intensive manufacturing industries preferred
  • 2+ years of experience working with silicon etching chemistries and a deep knowledge of their associated chemical hazards and engineering based mitigation strategies
  • 2+ years of experience working with the pyrophoric poisonous gas used in semiconductor doping and a deep knowledge of their associated chemical hazards and engineering mitigation strategies

Our Benefits

  • Competitive salary + equity - we want you to grow with us
  • Generous, high-quality medical, dental, and vision coverage on day one of employment
  • 15 vacation days, 5 sick days, and 10 paid holidays annually - with an extended holiday break at year's end
  • 401K with employer match up to 4% of salary
  • Employer-paid short-term and long-term disability and employer-sponsored life insurance
  • Your impact will extend beyond our labs - supporting the safe production of solar technology that literally goes to space.

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About the role

February 3, 2026

Full Time

Company

February 3, 2026

On-site

Solestial

solestial.com

  •  Tempe, Arizona, United States

5+ years in EHS program development and operational oversight

UTC-07:00

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