Internship

Process R&D Co-op

Updated on 3/20/2025

Sublime Systems

Sublime Systems

51-200 employees

Produces low-carbon cement for construction

No salary listed

Cambridge, MA, USA

This is a paid full time (40 hr/wk) in person position.

Category
Lab & Research
Environmental Sciences
Required Skills
Data Analysis
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
  • Previous internship or laboratory experience
  • A basic understanding of reactor design and/or material characterization techniques
  • A strong sense for safety, organization, and attention to detail
  • Ability to multi-task and manage their own time effectively
  • A willingness to speak up, ask questions, and suggest new ideas!
  • A good sense of humor!
Responsibilities
  • Daily operation of laboratory-scale chemical reactors
  • Routine synthesis and processing of cementitious materials
  • Leading 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
Desired Qualifications
  • A good sense of humor!

Sublime Systems produces low-carbon cement aimed at reducing the environmental impact of traditional cement manufacturing. Their unique process eliminates the need for a kiln, which is typically the most energy-intensive part of cement production. The low-carbon cement they offer performs similarly to traditional cement but with significantly lower CO2 emissions, making it appealing to various stakeholders in the construction industry, such as infrastructure owners, engineers, and contractors. Unlike competitors, Sublime Systems focuses on sustainability without compromising performance, and they sell their product by the metric ton for large-scale projects. Their goal is to commercialize low-carbon cement and work towards achieving zero emissions in the future.

Company Size

51-200

Company Stage

Early VC

Total Funding

$120.9M

Headquarters

Somerville, Massachusetts

Founded

2020

Simplify Jobs

Simplify's Take

What believers are saying

  • Sublime Systems secured $75M from major investors like Holcim and CRH.
  • The company is launching a new plant, creating 70-90 jobs.
  • Growing demand for sustainable construction materials boosts their market potential.

What critics are saying

  • High electricity costs may impact the economic viability of their process.
  • Potential competition from established producers investing in similar technologies.
  • Dependence on large-scale investments and grants for financial sustainability.

What makes Sublime Systems unique

  • Sublime Systems uses electrochemistry to produce low-carbon cement without kilns.
  • Their technology simultaneously produces green hydrogen, enhancing sustainability.
  • The cement performs like traditional cement but with significantly reduced CO2 emissions.

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Benefits

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

-3%

2 year growth

0%
Global Cement
Dec 4th, 2024
Sublime Systems to launch cement manufacturing plant with US$87m grant

Sublime Systems expects to create 70 - 90 jobs once its new plant is operational.

Business Wire
Oct 17th, 2024
Sublime Systems Secures Combined $75M in Investments from Global Building Materials Majors, CRH and Holcim, to Accelerate Scale-Up of True-Zero Cement Manufacturing Technology

Low-carbon cement technology leader Sublime Systems is accelerating its mission of swift and massive impact on global CO 2 emissions through unprecede

Quartz
Sep 24th, 2024
The biggest cement producers in the world have a big plan to cut emissions by 90%

The world's largest cement producers are investing $75 million in Sublime Systems, a startup trying to decarbonize the cement production process at scale.

CemNet
Sep 21st, 2024
Holcim invests in Sublime Systems in low-carbon tech scale-up

Holcim has invested in Sublime Systems, a leading low-carbon cement technology start-up, to expand its range of highly-engineered solutions to decarbonise building at scale, according to a Holcim...

Powder & Bulk Solids
Sep 19th, 2024
Holcim Invests in Low-Carbon Cement Technology Startup

Holcim has invested in Sublime Systems, a low-carbon cement technology startup, to expand its range of highly engineered solutions to decarbonize building at scale.