Thermal/CFD Expert with 11+ years of experience in thermal-fluid analysis, simulation and validation. ANÜ acceptable.
Aktualisiert am 13.04.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 15.04.2026
Verfügbar zu: 100%
davon vor Ort: 25%
Thermalanalyse
CFD
Thermal Design
1D modeling
Gasturbinen-Kraftwerk
Aerodynamik
SLM
DMLM
Python
MATLAB
Open modelica
CHT
StarCCM+
ANSYS Fluent
Thermodynamik
English
full professional proficiency
Croatian
Muttersprache
German
Beginner

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
Available for 25% onsite presence, critical reviews and team cohesion. Available up to 80% onsite during onboarding and kick-offs.
möglich

Projekte

Projekte

4 years 1 month
2022-03 - 2026-03

Thermal system design and performance owner for human organ transplant system

Thermal Expert - Thermal performance responsible OpenModelica Python MS Excel
Thermal Expert - Thermal performance responsible

Thermal expert for human transplants organ cooling system - human kidney

  • Passive cooling device thermal concept and dimensioning
  • Thermal system engineering
  • Transient behaviour 1D thermal analysis
  • Supplier benchmarking and liaising
  • Validation planning and support
OpenModelica Python MS Excel
X-therma
Zagreb, Innsbruck
3 years 5 months
2021-07 - 2024-11

Thermal integration in electric aerospace

Thermal System Engineer CFD MATLAB MS Excel ...
Thermal System Engineer

Thermal integration of Propulsion Vectoring System for Lilium Pegasus eVTOL

  • thermal integration model for the PVS (Propulsion Vectoring System - servo actuator, gearbox, inverter, HV wiring, Position sensor, Aluminium + CFRP structure)
  • integrative transient CHT CFD simulations for the whole PVS
  • 0D thermal model for flight simulator based on 3D models
  • translation of mechanical, aeroelastic, inertial, electric and aerodynamic loads into a resulting heating/ cooling mission profiles
  • managing external simulation suppliers (SENER, Celestica, Glenair, etc.)
  • supporting and planning the validation campaigns
  • thermal requirements capturing
  • author of several Technical Design Description documents

CFD MATLAB MS Excel Python starccm+
Lilium
Munich

Aus- und Weiterbildung

Aus- und Weiterbildung

1 year 5 months
2013-09 - 2015-01

Study - Mechanical Engineering (Energy Engineering - Turbomachinery)

Master, University of Zagreb
Master
University of Zagreb
Master Thesis: on request

Position

Position

Thermal system owner - a person in charge of designing the robust cooling / thermal management system, seeing to that it is easy to manufacture and validating the thermal design


Kompetenzen

Kompetenzen

Top-Skills

Thermalanalyse CFD Thermal Design 1D modeling Gasturbinen-Kraftwerk Aerodynamik SLM DMLM Python MATLAB Open modelica CHT StarCCM+ ANSYS Fluent Thermodynamik

Produkte / Standards / Erfahrungen / Methoden

Profile
Mechanical Engineer with 11+ years of experience in thermal-fluid analysis and simulation for advanced energy and aerospace systems, with focus on high-performance thermal management. Expertise in heat transfer, fluid dynamics, and conjugate heat transfer, including cooling system design, aerodynamic analysis, and first principles based thermal modelling. Proven track record in developing and validating numerical and analytical models to predict temperature fields, heat loads, and thermal transients under demanding operational conditions. Strong experience supporting design decisions, verification and validation, and cross-disciplinary integration. Driving robust engineering solutions from concept through validation.

Skills, methods and tools
  • First principles thinking
  • Clear communication
  • Self-directed and proactive
  • Methods: CFD, FEM, CHT, Multiphase, Coupled thermal - mechanical analysis, DPM, 1D, empirical correlations and hand calculations
  • CFD tools: StarCCM+, ANSYS Fluent, OpenFOAM, CFX, ICEM meshing, Fluent Meshing
  • FEM tools (for thermal and elastic problems): ANSYS Workbench, SC03, Abaqus
  • 1D tools: MATLAB Simscape, Flowmaster, OpenModelica, Dymola
  • MATLAB, Python
  • CAD tools: CATIA v5, Solidworks, SpaceClaim

Experience
2022 - today
Firmname on request
Director
  • Providing thermal expertise in demanding industries (aerospace, energy, EVs, biotech)
  • Cooling system concept
  • Thermal energy storage concept
  • Human organ cryo-preservation solutions (PCM system concept and validation)
  • Thermal simulations (CFD, CHT, FEM, 1D, latent heat, hand calculations)

2021 - 2024
Lilium ( remotely Zagreb/ onsite in Munich)
Thermal engineer (contractor)
  • Thermal analysis: hand calculations, 1D, 3D CFD/CHT
  • Thermal strategy and approach setting
  • Thermal requirements capturing and validation support
  • Propulsion system cooling development and aerothermal integration of propulsion electric motor and propulsion vectoring systems (PVS)
  • Conceptual studies and trade-offs for electric engine cooling concept
  • Technical go-to person for propulsion vectoring system thermals
  • Test requests, test planning and test support
  • Thermal validation on open bench servo and the servo control units
  • Released 3 Technical Design Specification documents and multiple Engineering Notes
  • Liaising with the equipment suppliers, deliverables status tracking and quality insurance of the delivered work

2018 - 2021
Rimac Automobili, Zagreb
Thermal Team Lead (CFD Engineer)
  • Increased team from 2-10 people
  • Aerodynamic and thermal modelling (CFD, Conjugate Heat Transfer, FEM, 1D, correlations)
  • Thermo-mechanical and thermo-electrical coupling
  • Cooling concept design
  • Feasibility studies for internal and external customers
  • Electric powertrain (EM, Inverter, gearbox) cooling and lubrication
  • EV Battery and power electronics cooling
  • Supporting the development of Rimac Nevera, Porsche, Hyundai, Koenigsegg and other established OEMs in electrifying their vehicles

2014 - 2018
General Electric (legacy Alstom),  Karlovac
Gas Turbine Combustor Cooling Engineer, Component Engineer
  • Aerodynamic and thermal modelling (CFD, CHT, FEM, 1D)
  • Hot path component cooling design
  • Key achievement: lead inventor of patented 3D printed burner front plate (GT13 E2 MXL2, AEV burner), resulted in increase in efficiency, decrease in manufacturing cost and pollution
  • Second inventor on GT26 second stage Helmholtz damper near-wall channel cooling ? 3D printed
  • Aerodynamic and thermal modelling (CFD, CHT, FEM, 1D)
  • Additive manufacturing (3D printing) design for combustor and turbine (GT13 E2, 7FA.05)
  • Test definition and test rig data evaluation (GT36, GT26 HE)
  • Supported 9HA.02, 7FA.05, GT36, GT26, GT13 (inlet, combustor cooling, turbine cooling, diffuser aerodynamics and thermal stress analysis)
  • Advanced thermal barrier coating (TBC) development
  • Expert Development Workshop keynote speaker
  • Export control tagger

Branchen

Branchen

  • Gas turbines (Alstom, GE)
  • EV automotive (Rimac Automobili, Rimac Technology)
  • Aerospace (Lilium GmbH)
  • Biomedical (X-therma GmbH)

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
Available for 25% onsite presence, critical reviews and team cohesion. Available up to 80% onsite during onboarding and kick-offs.
möglich

Projekte

Projekte

4 years 1 month
2022-03 - 2026-03

Thermal system design and performance owner for human organ transplant system

Thermal Expert - Thermal performance responsible OpenModelica Python MS Excel
Thermal Expert - Thermal performance responsible

Thermal expert for human transplants organ cooling system - human kidney

  • Passive cooling device thermal concept and dimensioning
  • Thermal system engineering
  • Transient behaviour 1D thermal analysis
  • Supplier benchmarking and liaising
  • Validation planning and support
OpenModelica Python MS Excel
X-therma
Zagreb, Innsbruck
3 years 5 months
2021-07 - 2024-11

Thermal integration in electric aerospace

Thermal System Engineer CFD MATLAB MS Excel ...
Thermal System Engineer

Thermal integration of Propulsion Vectoring System for Lilium Pegasus eVTOL

  • thermal integration model for the PVS (Propulsion Vectoring System - servo actuator, gearbox, inverter, HV wiring, Position sensor, Aluminium + CFRP structure)
  • integrative transient CHT CFD simulations for the whole PVS
  • 0D thermal model for flight simulator based on 3D models
  • translation of mechanical, aeroelastic, inertial, electric and aerodynamic loads into a resulting heating/ cooling mission profiles
  • managing external simulation suppliers (SENER, Celestica, Glenair, etc.)
  • supporting and planning the validation campaigns
  • thermal requirements capturing
  • author of several Technical Design Description documents

CFD MATLAB MS Excel Python starccm+
Lilium
Munich

Aus- und Weiterbildung

Aus- und Weiterbildung

1 year 5 months
2013-09 - 2015-01

Study - Mechanical Engineering (Energy Engineering - Turbomachinery)

Master, University of Zagreb
Master
University of Zagreb
Master Thesis: on request

Position

Position

Thermal system owner - a person in charge of designing the robust cooling / thermal management system, seeing to that it is easy to manufacture and validating the thermal design


Kompetenzen

Kompetenzen

Top-Skills

Thermalanalyse CFD Thermal Design 1D modeling Gasturbinen-Kraftwerk Aerodynamik SLM DMLM Python MATLAB Open modelica CHT StarCCM+ ANSYS Fluent Thermodynamik

Produkte / Standards / Erfahrungen / Methoden

Profile
Mechanical Engineer with 11+ years of experience in thermal-fluid analysis and simulation for advanced energy and aerospace systems, with focus on high-performance thermal management. Expertise in heat transfer, fluid dynamics, and conjugate heat transfer, including cooling system design, aerodynamic analysis, and first principles based thermal modelling. Proven track record in developing and validating numerical and analytical models to predict temperature fields, heat loads, and thermal transients under demanding operational conditions. Strong experience supporting design decisions, verification and validation, and cross-disciplinary integration. Driving robust engineering solutions from concept through validation.

Skills, methods and tools
  • First principles thinking
  • Clear communication
  • Self-directed and proactive
  • Methods: CFD, FEM, CHT, Multiphase, Coupled thermal - mechanical analysis, DPM, 1D, empirical correlations and hand calculations
  • CFD tools: StarCCM+, ANSYS Fluent, OpenFOAM, CFX, ICEM meshing, Fluent Meshing
  • FEM tools (for thermal and elastic problems): ANSYS Workbench, SC03, Abaqus
  • 1D tools: MATLAB Simscape, Flowmaster, OpenModelica, Dymola
  • MATLAB, Python
  • CAD tools: CATIA v5, Solidworks, SpaceClaim

Experience
2022 - today
Firmname on request
Director
  • Providing thermal expertise in demanding industries (aerospace, energy, EVs, biotech)
  • Cooling system concept
  • Thermal energy storage concept
  • Human organ cryo-preservation solutions (PCM system concept and validation)
  • Thermal simulations (CFD, CHT, FEM, 1D, latent heat, hand calculations)

2021 - 2024
Lilium ( remotely Zagreb/ onsite in Munich)
Thermal engineer (contractor)
  • Thermal analysis: hand calculations, 1D, 3D CFD/CHT
  • Thermal strategy and approach setting
  • Thermal requirements capturing and validation support
  • Propulsion system cooling development and aerothermal integration of propulsion electric motor and propulsion vectoring systems (PVS)
  • Conceptual studies and trade-offs for electric engine cooling concept
  • Technical go-to person for propulsion vectoring system thermals
  • Test requests, test planning and test support
  • Thermal validation on open bench servo and the servo control units
  • Released 3 Technical Design Specification documents and multiple Engineering Notes
  • Liaising with the equipment suppliers, deliverables status tracking and quality insurance of the delivered work

2018 - 2021
Rimac Automobili, Zagreb
Thermal Team Lead (CFD Engineer)
  • Increased team from 2-10 people
  • Aerodynamic and thermal modelling (CFD, Conjugate Heat Transfer, FEM, 1D, correlations)
  • Thermo-mechanical and thermo-electrical coupling
  • Cooling concept design
  • Feasibility studies for internal and external customers
  • Electric powertrain (EM, Inverter, gearbox) cooling and lubrication
  • EV Battery and power electronics cooling
  • Supporting the development of Rimac Nevera, Porsche, Hyundai, Koenigsegg and other established OEMs in electrifying their vehicles

2014 - 2018
General Electric (legacy Alstom),  Karlovac
Gas Turbine Combustor Cooling Engineer, Component Engineer
  • Aerodynamic and thermal modelling (CFD, CHT, FEM, 1D)
  • Hot path component cooling design
  • Key achievement: lead inventor of patented 3D printed burner front plate (GT13 E2 MXL2, AEV burner), resulted in increase in efficiency, decrease in manufacturing cost and pollution
  • Second inventor on GT26 second stage Helmholtz damper near-wall channel cooling ? 3D printed
  • Aerodynamic and thermal modelling (CFD, CHT, FEM, 1D)
  • Additive manufacturing (3D printing) design for combustor and turbine (GT13 E2, 7FA.05)
  • Test definition and test rig data evaluation (GT36, GT26 HE)
  • Supported 9HA.02, 7FA.05, GT36, GT26, GT13 (inlet, combustor cooling, turbine cooling, diffuser aerodynamics and thermal stress analysis)
  • Advanced thermal barrier coating (TBC) development
  • Expert Development Workshop keynote speaker
  • Export control tagger

Branchen

Branchen

  • Gas turbines (Alstom, GE)
  • EV automotive (Rimac Automobili, Rimac Technology)
  • Aerospace (Lilium GmbH)
  • Biomedical (X-therma GmbH)

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