Optical Engineer, Digital Twin

Focused Energy Inc.

Optical Engineer developing advanced optical and multiphysics simulations for Digital Twin applications at fusion energy startup. Collaborating with interdisciplinary teams to support system design and optimization.

Posted 7/22/2026full-timeDarmstadt • 🇩🇪 GermanyMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Expertise in developing and maintaining integrated optical and multiphysics simulation frameworks for Digital Twin applications, with strong capabilities in model validation, uncertainty quantification, and interdisciplinary collaboration.

Highest-signal resume keywords

Optical And Multiphysics SimulationModel Validation And Uncertainty QuantificationProgramming In Python, MATLAB, C/C++Experience With COMSOL, ANSYS, Zemax, CodeV, FREDStrong Collaboration Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Optical And Multiphysics SimulationModel ValidationUncertainty QuantificationProgramming In PythonProgramming In MATLABProgramming In C/C++Coupling Multiple Physical DomainsReduced-Order And Surrogate ModelsSensitivity AnalysisData-Driven Refinement

Soft Skills

Strong Collaboration SkillsAnalytical Problem-SolvingClear Communication Of Complex ResultsAbility To Work IndependentlyAdvanced Written And Verbal Communication

Tools & Technologies

COMSOLANSYSZemaxCodeVFRED

Industry Keywords

Digital Twin ApplicationsLaser Amplifier ArchitecturesOptical PhysicsThermal EffectsMechanical Coupling

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Develop and maintain integrated optical and multiphysics simulation frameworks (optical, thermal, mechanical coupling) for Digital Twin applications
Model complex laser amplifier architectures, including gain media, pump geometries, and thermal effects
Build, integrate, and continuously refine the Digital Twin environment for system-level prediction and optimization
Validate simulation models against experimental data and perform sensitivity and uncertainty analysis
Develop reduced-order and surrogate models for efficient Digital Twin deployment
Collaborate with optical engineers, laser physicists, and experimental teams to translate simulation results into engineering design decisions
Interface with Digital Twin architects, systems engineers, and program management to ensure models meet project requirements

Requirements

What you’ll need

Master’s or PhD in optics, computational physics, applied mathematics, or a related field
Strong experience in optical and multiphysics simulation of complex physical systems
Ability to couple multiple physical domains (optical, thermal, mechanical, fluid) into coherent system-level models
Solid understanding of laser and optical physics (propagation, amplification, spectral and nonlinear effects)
Experience in model validation, uncertainty quantification, and data-driven refinement
Strong programming skills in Python, MATLAB, C/C++, or similar
Experience with simulation tools such as COMSOL, ANSYS, Zemax, CodeV, or FRED
Ability to communicate complex simulation results clearly to non-specialists
Strong collaboration skills across interdisciplinary teams
Structured and analytical problem-solving approach
Ability to work independently while aligning with broader system goals
Advanced written and verbal communication skills in English.

Benefits

Comp & perks

Compensation offered will be determined by factors such as location, level, job-related knowledge, skills, and experience.
Certain roles may be eligible for incentive compensation, equity, benefits.