Pelin Cay

Pelin Cay, PhD

I solve problems most people call too complex to optimize — then I build the teams and products that put those solutions into production.

3 US Patents
Fortune 500 Client Delivery
Edelman Semi-Finalist

About

I'm an Operations Research scientist who builds things that ship. My PhD is in mixed-integer nonlinear optimization; my day job is leading a team at SAS Institute that turns that kind of mathematics into production systems for Fortune 500 companies — supply chain networks, manufacturing processes, transportation assignments, and more recently, quantum-classical hybrid solvers.

Over the past decade I've worked across the full stack of applied OR: formulating MINLP and MIP models, integrating machine learning into prescriptive pipelines, deploying on SAS Viya and cloud environments, and communicating results to C-suite stakeholders in ways that drive real decisions. Along the way, I've co-invented three US patents across different areas — from ML-integrated manufacturing optimization to quantum-classical hybrid methods — and a long-running Fortune 50 consumer goods partnership earned an Edelman Prize semi-finalist nomination, one of the highest recognitions in Operations Research.

More recently, I've been building and growing teams. As a manager in SAS's Applied AI & Modeling group, I lead data scientists through the full product lifecycle — from ideation and experimentation to production deployment. I launched the company's first independent Strategic Supply Chain Optimization offering and co-led a quantum computing partnership with a Fortune 50 consumer goods company. What drives me is finding problems where rigorous optimization creates measurable impact — and making sure the solution actually reaches the people who need it.

Expertise

Mathematical Optimization

LP, MIP, MINLP, network flows, stochastic & robust optimization, NP-hard combinatorial problems.

ML + Optimization Integration

Embedding machine learning models into prescriptive analytics pipelines for production-grade decision systems.

Supply Chain & Manufacturing

Strategic supply chain planning, mixture optimization, production cost minimization under quality constraints.

Quantum-Classical Hybrid

Applying quantum computing to real-world NP-hard optimization problems, integrated with classical solvers.

Team Leadership & Product

Hiring, mentoring, and growing data science teams. Product roadmap ownership, Scrum delivery, executive communication.

Technical Tools

Python, Pyomo, CPLEX, Gurobi, AMPL, GAMS, SAS Viya, PROC OPTMODEL, Git, CI/CD.

Selected Work

Strategic Supply Chain Optimization

2024 – Present

Led the development of SAS's first independent model offering — a recommendation system for strategic-level supply chain decision-making. Built the product from ideation through production launch, serving as development manager, project manager, and technical lead.

Supply Chain Optimization + Recommendation Systems

CPG Mixture & Pooling Optimization

2017 – Present

Multi-year Fortune 50 partnership: designed and maintained pooling-process MINLP engines across multiple production releases, delivering significant and sustained cost savings. Modernized the customer environment to cloud-native SAS Viya.

Manufacturing MINLP / Pooling Formulation

Quantum-Classical Hybrid Optimization

2023 – 2025

Co-led R&D initiative applying quantum-enabled methods to a real-world NP-hard business problem, integrating quantum annealing approaches with the SAS Optimization classical solver. Resulted in US Patent 12,373,720.

CPG Hybrid Quantum-Classical MIP

Transportation Assignment Optimization

2021 – 2022

Designed a custom bus-driver-route assignment optimizer using network optimization and constraint programming techniques, resolving a critical operational gridlock. End-to-end delivery on SAS Viya 4 in a cross-team environment.

Transportation Network Optimization

Manufacturing Process Optimization

2018 – 2021

Built production cost minimization models under quality constraints, integrating ML-based KPI prediction into the MIP optimization framework for global manufacturing clients. Co-invented US Patent 11,055,639 for the ML-optimization integration method.

Manufacturing ML-Embedded MIP

Patents & Publications

Patents

  • US 12,373,720 (2025) — Hybrid quantum/nonquantum approach to NP-hard combinatorial optimization.
    Cay, S.B., Wisotsky, W.L., Crain, C.K., Yi, J., Cay, P., et al.
  • US 12,271,688 (2025) — Systems, methods, and GUIs for secure execution of analytical tasks using natural language.
    Moreno, J., Prabhudesai, K.S., Liang, F., Valsaraj, V., Cay, P., et al.
  • US 11,055,639 (2021) — Optimizing manufacturing processes using one or more machine learning models.
    Cay, P., Karmakar, N., Summerville, N., Valsaraj, V., Cooper, T., Gardner, S., & Griffin, J.

Publications

  • Cay, P., Mancilla, C., Storer, R.H., & Zuluaga, L.F. (2019). Operational decisions for multi-period industrial gas pipeline networks under uncertainty. Optimization and Engineering, 20(2), 647–682. DOI
  • Cay, P., Esmali, A., Mancilla, C., Storer, R.H., & Zuluaga, L.F. (2018). Solutions with performance guarantees on tactical decisions for industrial gas network problems. IISE Transactions, 50(8), 654–667. DOI
  • Savasher, S., Kinay, O.B., Kara, B.Y., & Cay, P. (2018). Organ transplantation logistics: a case for Turkey. OR Spectrum, 1–30. DOI

Education

PhD, Industrial & Systems Engineering

2012 – 2019
Lehigh University, Bethlehem, PA
Dissertation: Solution methodologies for mixed integer nonlinear optimization problems in gas networks and railroad service agreements.
P.C. Rossin Doctoral Fellow (2014–2019); Dean's Doctoral Fellowship (2012–2013).

MS, Industrial Engineering

2010 – 2012
Bilkent University, Ankara, Turkey
Thesis: Organ Transplantation Logistics — Turkey Case. MIP models and discrete-event simulation for intra-regional organ flow optimization.
Full scholarship; Graduate Education Scholarship, Scientific and Technological Research Council of Turkey.

BS, Industrial Engineering

2005 – 2010
Bilkent University, Ankara, Turkey