Process R&D Co-op
Sublime Systems
Somerville, MA, USA
USD 25-25 / hour
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
This is an exciting opportunity to transform how the world makes cement and its co-products. Sublime Systems seeks a creative and hard-working scientist/engineering co-op to support the development of our technology on the R&D scale. In this role you will gain valuable hands-on experience in small scale reactor design and operation, utilizing a variety of characterization techniques to assess material properties and performance, analyzing and interpreting results, and exposure to experimental planning and prioritization. The ideal candidate is a hard-working scientist or engineer who thrives in a fast-paced environment with shifting priorities consistent with R&D. This role is expected to be hands-on in the lab assisting in R&D efforts to develop and optimize the Sublime Process to meet material performance metrics. Successful candidates will be results-driven, proactive, and effective in managing their own time efficiently.
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
- Championing safety, especially in the design and operation of chemical reactors
Knowledge and Skill Requirements:
- Actively pursuing a B.S. in Chemical Engineering, Material Science & Engineering, Chemistry, or a related field
- Basic understanding of reactor design and chemical engineering fundamentals
- Familiarity with physical, chemical, and mechanical characterization techniques, such as Laser Diffraction, ICP-OES, SEM, XRF, XRD, titrations, UV-Vis, compressive testing, etc.
- Ability to pay close attention to detail, focusing on accuracy and quality, without losing sight of the bigger picture
- Superior communication skills, including the ability to speak up and ask questions, and convey progress and results in both informal and formal settings
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.
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.
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25 - 25 USD