Master's/PhD Research Fellow – Operations Researcher, ATM Cash Inventory Optimization

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🕒 June 26

🇧🇷 Brazil – Remote

💵 R$11k / month

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧬 Research Scientist

👻 Ghost score 25%

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Instituto Euvaldo Lodi

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1969

🤝 B2B

📚 Education

💼 Consulting

B2B • Education • Consulting

IEL - Instituto Euvaldo Lodi is a Brazilian institute linked to the Sistema Indústria (CNI/SENAI/SESI) that supports industry by promoting innovation, workforce development, and stronger ties between companies, universities and research institutions. It provides services such as corporate training, professional qualification, internships and student-business integration, technology and management support, and programs to increase industrial competitiveness and knowledge transfer. IEL operates as a business-facing organization focused on improving industry performance and linking academic and technological resources to companies.

📋 Description

• 12-month project to develop and compare approaches for optimizing cash denomination provisioning per withdrawal at ATM terminals • Formalization of the problem (variables, physical constraints, objective function) and a simulation environment using withdrawal history and Monte Carlo resampling • Development and comparison of three approaches — periodic offline policy; predict-then-optimize combined with reinforcement learning; short-horizon online MIP with a fallback • Coordination at the battery level (a set of terminals) to align depletion and reduce aggregated restocking • Evaluation against baselines (largest-denomination, proportional, threshold) using metrics for restocking events, time between restocks, service rate, latency, and traceability

🎯 Requirements

• PhD or Master's degree • Currently enrolled in or completed studies in Computer Engineering, Computer Science, Electronic Engineering, Applied Mathematics, or Statistics • Experience using solvers (CPLEX, Gurobi, CBC, HiGHS, etc.) • Mathematical modeling techniques using Operations Research (linear programming, mixed-integer programming, heuristics, etc.) • Programming experience in Python

🏖️ Benefits

• Monthly stipend: R$ 9,000 (Master's) and R$ 11,000 (PhD) • Work arrangement: Remote

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