Process R&D, Scale- up Co-op
Sublime Systems
Somerville, MA, USA
Posted on Feb 7, 2026
Sublime is advancing a breakthrough, clean, efficient, low-waste process for manufacturing cement, the essential ingredient in the most-consumed human-made material on Earth: concrete. Replacing 200-year-old manufacturing methods that are reliant on kilns running hotter than lava, our near-ambient-temperature, electrochemical technology manufactures industry-accepted cement and critical minerals. We’re partnering with leading general contractors, concrete producers, developers, and technology hyperscalers to deploy our clean, durable, beautiful Sublime Cement® in infrastructure that is defining the future of clean construction. Backed by some of the world’s largest cement producers, leading private investors, and the U.S. Department of Energy, we are assembling a talented, collaborative team that is "amped about cement" (pun intended) and committed to operating on the frontiers of material science, manufacturing, industry, construction, and commercial partnerships, to advance cement innovation that will endure for the next millennium.
Position Overview
Sublime Systems is seeking a creative and driven Co-op to assist in the scale up of Sublime’s technology. This is an exciting chance to work on process development both at the research and pilot scales and support the goals of process commercialization. In this role, you will gain experience with small scale reactor design and operation as well as learn how to assemble and operate pilot plant equipment. You will also help to maintain pilot equipment, implement process improvements, and execute experiments to inform scale-up decisions.
This role is expected to be hands-on, with a significant amount of time spent engaging in pilot operation and troubleshooting. Successful candidates will be results-driven, ambitious, organized, and able to thrive in a fast-paced environment with shifting priorities.
The ideal candidate will have:
- A strong sense for chemical safety, organization, and attention to detail
- Previous internship and/or lab experience
- An eagerness for hands-on work and for learning new processes and unit operations
- A basic understanding of reactor design and/or material characterization techniques
This is a paid full-time (40 hr/wk) in-person position located in Somerville, MA.
Responsibilities Include:
- Daily operation of laboratory-scale chemical reactors
- Routine synthesis and processing of various materials, both powder and liquid
- Interpreting and/or performing physical, chemical, and mechanical characterization of synthesized materials
- Analyzing data, interpreting results, and presenting conclusions to the larger team
- Facilitate planning, installation, and assembly of new equipment
- Move reasonably sized drums of chemicals and packages of raw materials by hand or using a hand pallet jack (no forklift operation)
- Participate in downstream product processing
- Document process operations and participate in safety reviews/planning
- Perform hands-on troubleshooting and repair of pilot equipment
Knowledge and Skill Requirements
- Actively pursuing a degree in Mechanical, Chemical, or Industrial Engineering or a related field
- Knowledge of and passion for applying engineering fundamentals to chemical process design and operation
- Able to lift objects up to 50lbs, climb ladders, and work on step stools
- Ability to pay close attention to detail, focusing on accuracy and quality, without losing sight of the bigger picture
- Desire to work on new processes and learn new skills on-the-job
- Familiarity with physical, chemical, and mechanical characterization techniques, such as Laser Diffraction, ICP-OES, SEM, XRF, XRD, titrations, UV-Vis, compressive testing, etc.
- Balance, perspective, and a good sense of humor
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.
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25 - 25 USD