Principal Scientist, OR & Decision Science

Johnson & Johnson Innovation

Madrid

On-site

EUR 104,000 - 179,000

Full time

14 days+
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Job summary

Johnson & Johnson Innovative Medicine is seeking a hands-on Principal Scientist to design, build, and scale optimization, simulations, and digital twins across Therapeutics Development & Supply. This role translates complex processes into rigorous models and integrates outputs into enterprise decision workflows.

The ideal candidate combines OR/industrial engineering expertise with software engineering discipline and leadership capabilities to deliver high-impact decisions and scalable solutions

Qualifications

  • Advanced degree in a quantitative field and 5+ years applying optimization, simulation, or related methods.
  • Depth in at least two areas: mathematical programming, discrete-event simulation, stochastic optimization, or resource planning.
  • Strong Python programming and experience with optimization/simulation frameworks.

Responsibilities

  • Formulate and solve portfolio prioritization, resource allocation, and capacity planning problems.
  • Design, build, and scale digital twins and simulations to guide Decisions across Therapeutics Development & Supply.
  • Develop reusable modeling workflows and decision-support products using Python and cloud tools.
  • Lead cross-functional collaboration and clearly communicate model results to technical and non-technical audiences.

Skills

Operations Research
Industrial Engineering
Applied Mathematics
Programming (Python)
Optimization frameworks (Pyomo, OR-OPs
Modeling & simulation
Data integration
Communication

Education

Master's or PhD in a quantitative field
Advanced degree in Operations Research/Industrial Engineering/Systems Engineering/Applied Mathematics/Management Science/Computer Science/Chemical Engineering

Tools

Pyomo
Gurobi
CPLEX
OR-Tools
SimPy
AnyLogic
Simio
Arena

Job description

Johnson & Johnson Innovative Medicine is seeking a hands-on Principal Scientist to design, build, and scale optimization, simulations, and digital twins across Therapeutics Development & Supply. This role translates complex processes into rigorous models and integrates outputs into enterprise decision workflows.

The ideal candidate combines OR/industrial engineering expertise with software engineering discipline and leadership capabilities to deliver high-impact decisions and scalable solutions

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