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Product Validation Co-op

Sublime Systems

Sublime Systems

Product
Somerville, MA, USA
Posted on Mar 12, 2025
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 transform how the world makes cement. Sublime Systems seeks an under graduate student interested in sustainability, materials, and construction. The ideal candidate will have:
· A strong sense for safety, organization, and attention to detail
· Laboratory experience preferred (materials lab a plus
· Ability to make keen observations, recommend process improvements, and articulate findings
· An interest in physical lab testing and the knowledge to generate and analyze data
· Enjoy hands-on concrete work
· Experience analyzing and presenting results to key stakeholders
· Familiarity with ASTM, ACI, and AASHTO standards pertaining to concrete/cement
This role is expected to be hands-on, with a significant amount of time spent working in the concrete lab space, making various mixes and testing batch designs. Successful candidates will be results-driven, ambitious, organized, and able to thrive in a fast-paced environment with shifting priorities.

Responsibilities include:

  • Mixing and casting concrete samples in a lab
  • Cleaning and organizing lab equipment and space
  • Running physical and chemical characterization instruments
  • Strongly adhering to all safety standards
  • Consistently perform various ASTM standards such as slump, air, unit weight, time of set, and several others
  • Managing various large data sets and keeping track of multiple workstreams simultaneously

Knowledge and Skill Requirements:

  • Actively pursuing a degree in a STEM major
  • Knowledge of and passion for applying engineering fundamentals to product design specifications and performance compliance
  • Able to lift objects up to 50 lbs in quick succession
  • Knowledge and ability to use lab equipment
  • Knowledge of ASTMand ACI is a plus
  • Ability to pay close attention to detail, focusing on accuracy and quality, without losing sight of the bigger picture.
  • 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.
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.