Responsibilities
- Develop and maintain digital twin simulations for warehouse and logistics systems, modeling system states, events, and resource interactions.
- Create and optimize network models to improve flow, resource allocation, and operational performance.
- Collaborate with stakeholders to integrate simulation and optimization solutions into existing workflows.
- Analyze simulation outputs to pinpoint inefficiencies and recommend actionable improvements.
- Write modular, testable, and efficient code to support simulation and optimization projects.
- Document processes, methodologies, and findings for technical and non-technical audiences.
Must-Have Technical Skills
- Core Python: OOP, data structures, algorithms; writing modular, testable, efficient code
- Data Manipulation & Numerical Computing:pandas for cleaning/analysis; NumPy for computations
- Data Ingestion:fetching from REST APIs (requests) and databases (SQL)
- Discrete-Event Simulation:DES principles; SimPy for modeling states, events, resources (e.g. warehouse flows)
- Operations Research & Optimization:LP/MIP formulation; Python libraries (OR-Tools, Pyomo, PuLP); familiarity with VRP basics and assignment problems
- Graph Analytics:NetworkX for building/analyzing network topologies and flows
- DevOps & Version Control:Git with CI/CD pipelines; Docker containerization
- API Development:building/deploying REST services with Flask or FastAPI
- Visualization:creating plots and dashboards using Matplotlib, Seaborn, or Plotly
Nice-to-Have Technical Skills
- Advanced Routing & Heuristics: VRP variants (time windows, Hours of Service); heuristics/meta-heuristics (Tabu Search, Genetic Algorithms, Branch & Bound, Simulated Annealing)
- Commercial Solvers:Gurobi or CPLEX and their Python APIs
- ML-Enhanced Simulations:integrating scikit-learn or TensorFlow/PyTorch models for predictive maintenance or anomaly detection in digital twins
- Alternative Simulation Paradigms:agent-based modeling, etc.
- Streaming & IoT:real-time data processing with kafka-python; MQTT (paho-mqtt) for live twin updates
- Geospatial Processing & Visualization:GeoPandas, Shapely; routing engines/APIs (OSRM, Google Maps, HERE); Folium for maps
- Interactive Dashboards:Dash or Streamlit
- 3D Visualization:pyvista or vedo for complex digital-twin renderings
