Process Simulation Engineer (f/m/d) – Full-Time

C1 Green Chemicals AG; Berlin; On-site; EUR 60,000 - 80,000; Part time

Benefits offered by this job

Attractive salary and stock option package

Dynamic work environment

Opportunity to impact climate change

Job summary

C1 Green Chemicals AG in Berlin is seeking a Simulation Modeler to drive real-world decisions in scaling green methanol. You'll develop and maintain simulation models that guide critical engineering and commercial decisions while collaborating across teams.

The ideal candidate holds a degree in Chemical or Process Engineering, with hands-on experience in dynamic modeling software. This role offers a dynamic work environment and opportunities to positively impact climate change solutions.

Qualifications

• Hands-on experience with simulation software.
• Proven ability to build and maintain steady-state models.
• Strong fundamentals in thermodynamics and unit operations.

Responsibilities

• Develop, validate, and maintain steady-state and dynamic process simulation models.
• Provide reliable outputs for cost estimation and commercial evaluations.
• Run optimizations, sensitivity studies, and scenario analyses.

Skills

Simulation modeling

Thermodynamics

Python

MATLAB

Data processing

Communication

Education

Degree in Chemical Engineering, Process Engineering, or related field

Tools

Aspen Plus

Aspen HYSYS

gPROMS

Job description

If you want your simulations to drive real‑world decisions—not just nice plots—this role is for you. You’ll help scale green methanol from early scale‑up work to industrial application, turning plant data and rigorous models into engineering and commercial clarity.

Why this role is worth your time

• Real impact: Your models inform design choices, cost outlook, and scale‑up investments.
• Real data validation: Compare models against actual plant operations.
• Modern workflow: Steady‑state + dynamic modeling, Python/MATLAB automation, version control.
• High ownership: Fast learning curve, close collaboration across R&D, operations, engineering, and commercial.

Build, validate, and run simulation models that become the quantitative backbone for process design and scale‑up. You’ll keep modeling assumptions and thermodynamics consistent, deliver trustworthy outputs, and make complex system behavior actionable for cross‑functional teams.

What you’ll do

• Develop, validate, and maintain steady‑state and dynamic process simulation models
• Define and maintain a consistent modeling basis (thermo packages, assumptions, data)
• Generate mass & energy balances and simulation inputs for equipment sizing and process design
• Provide reliable outputs for cost estimation and commercial evaluations
• Run optimizations, sensitivity studies, and scenario analyses
• Support troubleshooting and debottlenecking via plant data model comparisons
• Use Python and/or MATLAB for data processing, automation, and reporting (incl. AI/agentic coding when useful)
• Maintain clear documentation and version control for models and results

What you bring

• Degree in Chemical Engineering, Process Engineering, or related field
• Hands‑on experience with at least one simulator: Aspen Plus, Aspen HYSYS, gPROMS, or similar dynamic modeling software
• Proven ability to build and maintain steady‑state models (dynamic is a plus)
• Strong fundamentals in thermodynamics, phase behavior, and unit operations
• Python and/or MATLAB for data workflows, automation, reporting, visualization
• Experience with optimization, sensitivity, and scenario work
• Clear communication and collaboration across engineering, R&D, operations, and commercial
• Structured work style with emphasis on documentation, traceability, and version control

Nice to have

• Pilot‑plant experience
• Git‑based workflows, reproducible modeling setups, light CI/automation
• Exposure to Techno Economic Modeling / cost engineering interfaces

Ready to level up simulation modeling? Send your CV + 2–3 lines on your proudest model/tool and its impact.

As a startup in Berlin, we offer a dynamic and non‑bureaucratic work environment, attractive salary and stock option package, as well as the opportunity to work on solving the No.1 global challenge, climate change.

We welcome applications from all genders and nationalities and are open to part‑time.