Demo

Product Validation Co-op

Sublime Systems
Somerville, MA Full Time
POSTED ON 1/2/2026
AVAILABLE BEFORE 3/2/2026

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. Sublime Systems seeks an undergraduate student interested in sustainability, materials, and construction.


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. 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 


Responsibilities include:
  • Mixing and casting concrete samples in a lab 
  • Cleaning and organizing lab equipment and space 
  • Running physical and chemical characterization instruments on cement and concrete 
  • 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.


Notice of E-Verify

Sublime Systems use E-Verify to confirm the identity and employment eligibility of all new hires.

Salary.com Estimation for Product Validation Co-op in Somerville, MA
$77,134 to $94,769
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