Senior Reactor Modeling Engineer — CFD & Data Insights

Lydian; Boston (MA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Unlimited PTO

Health insurance

401(k) with company match

Equity compensation

Dental & Vision coverage

Job summary

Lydian is seeking a Senior Reactor Modeling Engineer to develop multi-physics models of their reactors and apply them to design, optimization, and troubleshooting challenges. You will collaborate with experimentalists to validate models and lead data handling and advanced data analysis across the company.

Ideal candidates have strong fundamentals in heat transfer, fluid mechanics, thermodynamics, and chemical kinetics, with a track record of building CFD and analytical models that capture system

Qualifications

• BS, MS, or Ph.D. in Mechanical Engineering, Chemical Engineering, or similar; MS/PhD preferred.
• 5+ years of experience in thermal fluid, reactor, or catalytic systems.
• Experience using CFD software (Ans y s, COMSOL, OpenFOAM, STAR-CCM+, etc.) to analyze physical systems and guide product design.
• Skilled at analyzing experimental data, drawing meaningful conclusions, and presenting findings to a broader team.
• Strong ability to apply engineering principles—thermodynamics, fluid mechanics, and heat/mass transport—to complex design problems.
• Experience modeling reactors and chemical kinetics.
• Comfortable working independently to define and execute projects.

Responsibilities

• Develop thermofluid/reaction models of Lydian’s custom-designed reactors.
• Perform detailed analyses (hand calculations, FEA, CFD, etc.) to support design and optimization of critical reactor components.
• Leverage models to understand experimental systems, aid troubleshooting, and parametric design decisions.
• Collaborate with teammates to design, build, and execute tests for data validation and parameter extraction.
• Develop data analysis methods to support teams across Lydian.
• Collaborate with process engineers to implement parametrized reactor models in plant-level simulations.

Skills

CFD software

Data analysis

Thermodynamics

Heat transfer

Fluid mechanics

Reactor modeling

Education

BS in Mechanical/Chemical Eng

MS preferred

PhD preferred

Tools

ANSYS

COMSOL

OpenFOAM

STAR-CCM+

Job description

Lydian is seeking a Senior Reactor Modeling Engineer to develop multi-physics models of their reactors and apply them to design, optimization, and troubleshooting challenges. You will collaborate with experimentalists to validate models and lead data handling and advanced data analysis across the company.

Ideal candidates have strong fundamentals in heat transfer, fluid mechanics, thermodynamics, and chemical kinetics, with a track record of building CFD and analytical models that capture system