Sublime Systems is leading a swift and massive transition to a clean cement manufacturing future.
Sublime’s breakthrough electrochemical process avoids the pollution caused by ordinary portland cement’s use of fossil-fueled kilns and limestone feedstock. Sublime instead extracts reactive calcium and silicates from abundant raw materials at ambient temperature, to make ASTM C1157-compliant Sublime Cement™, a 1:1 replacement for OPC in concrete. Because it does not require carbon capture, Sublime’s technology offers a clear path for cost-competitive clean cement manufacturing at scale.
Sublime was founded at MIT in 2020 by Dr. Leah Ellis and Prof. Yet-Ming Chiang, both respected experts in materials science, electrochemical systems, and sustainability research. The company has raised over $200M in funding from leading tech investors, global cement majors, and cooperative agreements with the U.S. Department of Energy’s ARPA-E, IEDO, and OCED award programs.
It currently operates a Somerville, MA-based pilot plant with a >250 TPY nameplate production capacity and is developing its 30,000 TPY first commercial facility in Holyoke, MA.
Company Overview
Sublime Systems is a technology company commercializing affordable, ultra-low-carbon cement. Sublime's breakthrough replaces the industry's legacy fossil fuel-fired kilns with an electrochemical system that operates at ambient temperature, eliminating the use of fossil fuel and the need for limestone, resulting in low-carbon, low-embodied energy cement. This technology has the potential to drive gigaton-scale CO2 reductions in an industry responsible for 8 percent of global emissions. Sublime is backed by mission-aligned investors, including The Engine, Prime Impact Fund, Energy Impact Partners, and Lowercarbon Capital. We are building a diverse and collaborative team of folks who are "amped about cement" (pun intended), who share our values (excellence, creativity, and teamwork), and our motivation to create a better world.
Position Overview
This is an exciting opportunity to change the way cement is made! This position works out of our Somerville, MA Pilot Plant location where we are producing strong, fast-setting clean cement of the future.
Sublime Systems is proud to be an Equal Opportunity Employer
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected by law.
Research suggests that qualified people from historically marginalized groups may self-select out of opportunities if they don't meet 100% of the job requirements. We encourage individuals who believe they have the skills necessary to thrive to apply for this role.
Your Right to Work
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
Responsibilities Include
Controls, operates, and monitors mixers, vacuum pumps, slurry vessels, Filter press, drying ovens, grinding and mixing equipment for use in pilot chemical processes Follow Standard Operating Procedures for plant start-up, shut down, cleaning and batching. Perform routine and preventative maintenance tasks as required including equipment inspection and calibrations Basic maintenance and operator care of equipment to ensure ongoing facility operations Complete maintenance logs consistent with pilot operating plan Complete start of day and/or end of day facility inspection list Demonstrate leadership in process and operational safety at all times, and demand that of others, including all Sublime Systems employee’s, visitors, and contractors Other duties as assigned Knowledge and Skill Requirements
Associates degree and/or certificate in industrial work skills such as industrial maintenance, automated technology, welding, etc. is preferred. 1-2 years of previous experience in industrial or commercial maintenance or operations is preferred. Detail-oriented; proficiency for accuracy; dependable; positive attitude; team player. Ability to multi-task and take ownership of assigned projects. Good communication skills, both written and verbal. Must be able to lift and move up to 75 pounds Must be able to stoop, kneel, crouch, reach, and stand