Process Engineer ll

Sublime Systems

Somerville, MA, United States

Posted on: 2025-07-03

Category: materials

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Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

Sublime is developing a breakthrough process to make low-carbon cement. The technology replaces the industry's legacy fossil-fuel-intensive thermal calciner process with an electrochemical process that produces low-carbon cement at ambient temperatures with renewable electricity. Sublime was started in 2020, as a spin-out of Yet-Ming Chiang's lab at MIT (Form Energy, A123, American Superconductor, 24M, Desktop Metals).

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.

This is an exciting opportunity to transform how the world makes cement. Sublime Systems seeks a creative and dynamic Engineer in the development of slurry post-processing activities, including testing and operation of our pilot plant scale systems. Your role will focus on various slurry and wet cake handling within the Sublime processes.

You will be responsible for equipment research, vendor outreach, equipment installation and testing, as well as the development and execution of production runs at pilot scale. You will help maintain pilot equipment and implement process improvements.

This role is expected to be hands-on, with a significant amount of time spent engaging in pilot operations and troubleshooting. Successful candidates will be results-driven, ambitious, organized, and able to thrive in a fast-paced environment with shifting priorities.

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.

The ideal candidate will have:

A strong sense for safety, organization, and attention to detail

Ability to make keen observations on process anomalies, recommend process improvements, and articulate findings

Basic understandings of laboratory and analytical testing methods

Previous experience in industrial research, pilot or manufacturing setting

Experience with industrial material conveying and filtration equipment

Experience with solids and slurries

Develop and facilitate pilot scale experiments with new and existing equipment

Owner of select equipment (Filtration equipment, material transfer equipment, and solids handing equipment)

Operate equipment for both technology development, equipment validation and material production targets

Including installation and assembly of new equipment

Responsible for meeting material production targets

Perform necessary pre-operation and end of shift activities to ensure proper equipment start-up and operation on multiple pieces of equipment

Participate in sample prep, analysis and interpretation of lab and pilot scale experiments

Documentation of process operations and results

Maintain pilot plant conditions in a fashion that facilitates cleanliness and productivity

Move reasonably sized drums and packages of raw materials by hand, using a hand pallet jack, electric pallet stacker

Knowledge and Skill Requirements:

Bachelor degree in Mechanical, Industrial or Chemical engineering or a related field with 5+ years experience

Knowledge of and passion for applying engineering fundamentals to process plant design and operation

Able to lift objects up to 50 lb, climb ladders, and work on step stools

Respirator use may be required for certain tasks

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

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