Process Engineer – sCO₂ Power & Thermal Systems

Remote from Mexico · Full time · US business hours

? Salary: MX$44,800 gross per month on payroll, with statutory benefits (prestaciones de ley)

Contractor option: MX$56,000 per month if you prefer to invoice as an independent contractor (RESICO)

About the company

Our client is an early-stage San Francisco startup developing modular power plants that deliver electricity and cooling from a single integrated system. The platform combines supercritical CO₂ (sCO₂) power conversion with thermally driven cooling and is designed to run on a range of fuel and heat sources. They build compact, factory-integrated systems for critical infrastructure, where reliable power, thermal management and deployment speed matter.

The role

You will own thermal-fluid process development for the integrated power and cooling architecture, turning thermodynamic models into complete, buildable process systems: the sCO₂ power loop, thermal inputs, recuperation, heat rejection and adsorption-based cooling integration. The work spans first-principles modeling, equipment sizing, PFDs and P&IDs;, controls philosophy, vendor engineering and prototype validation.

What you'll do

- Lead process design for integrated sCO₂ Brayton-cycle power generation and thermally driven cooling.
- Build steady-state and transient models, mass and energy balances, pressure-loss calculations and off-design performance analyses.
- Define design and operating conditions for turbomachinery, heat exchangers, piping, vessels and auxiliary equipment.
- Produce and maintain PFDs, P&IDs;, equipment datasheets, line lists and process design documentation.
- Size and specify recuperators, primary heat exchangers, coolers, valves, pressure equipment, piping and pumps.
- Develop strategies to recover and use thermal energy in adsorption-based cooling subsystems.
- Analyze performance across changes in heat source, ambient conditions,



power demand and cooling load.
- Write startup, shutdown, part-load and fault-response operating philosophies, including instrumentation and safety interlocks.
- Support process hazard reviews, vendor evaluations, procurement and integration with other engineering disciplines.
- Commission prototype systems, interpret test data, validate models and drive improvements.

What you bring

- BS in Mechanical or Chemical Engineering.
- 4+ years in process engineering, thermal-fluid systems, power generation or industrial energy equipment.
- Strong command of thermodynamics, heat transfer, fluid mechanics and process equipment design.
- Hands-on experience producing process simulations, PFDs, P&IDs;, equipment specifications and design calculations.
- Proficiency in at least one of Python, MATLAB, EES or Aspen HYSYS/Plus.
- Knowledge of heat exchangers, pressure systems, piping, valves, instrumentation and controls.
- Experience taking a design to real hardware through fabrication, commissioning or testing.
- Advanced English: you can explain and defend design decisions with US engineering teams.
- Availability to work full time on US business hours, remotely from Mexico.

Nice to have

- sCO₂, Organic Rankine, Brayton or other closed-loop power cycles
- Adsorption/absorption refrigeration, heat recovery and thermal integration
- Printed-circuit or other compact high-effectiveness heat exchangers
- CoolProp, REFPROP, transient modeling and custom thermodynamic models
- High-pressure gas systems and ASME pressure vessel/piping codes
- Pilot-scale thermal plant fabrication, commissioning and validation

Why join

You'll help lay the engineering foundations of a new distributed energy platform. This is a role for people who take ownership across disciplines, move comfortably between analysis and hardware, and want to see their designs built, tested and running in the field.

Hirably connects top Mexican talent with US companies. Apply through this post or send your résumé in English.

📌 Process Engineer (México)
🏢 Hirably
📍 México