Ph.D Intern - Optimization (Fall 2026)

How you'll help us Keep Climbing (overview & key responsibilities) The Operations Decision Science teamat Delta Air Lines is seeking a graduate operations research intern to developdata-driven solutions aimed at continually providing decision support whileimproving airline efficiency and performance. An ideal candidate has foundationaltechnical knowledge of operations research optimization models, simulationmodels, and core data science/data engineering concepts. The candidate shouldhave excellent organizational and communication skills and feel comfortable ina fast-paced environment. This role will support the delivery of decisionsupport applications by leveraging combinatorics, algorithms, and optimization. Primary Functions: Build complex data sets frommultiple data sources, both internally and externally Leverage emerging technologies andidentify efficient and meaningful ways to disseminate and synthesize datato satisfy business’ needs Design, develop, implement, andcalibrate optimization products Interface with business unit leaders to develop and maintain internal customer relationships Practice safety-conscious environment resultingin employee safety and well-being What you need to succeed (minimum qualifications) Working as an intern does not guarantee a full-time opportunity upon graduation. This position is intended to provide you with educational, and professional work experience to prepare you for the workforce. This position requires you to work from August 2026 - December 2026. You cannot actively take any courses (inclusive of online or in-person) and work as an intern at the same time. BA/BS in Industrial Engineering, Statistics, Mathematics, Computer Science, or related field Minimum of one year of doctorate level coursework completed PhD Proven success in solving complex quantitative problems Working knowledge in one or more optimization techniques (LP, MILP, QCP, MIQP, CP, and/or heuristics) Proficiency in Python, C++ or other programming languages (Python preferred) Strong written, oral communication, and interpersonal skills Consistently prioritizes safety and security of self, others, and personal data. Embraces diverse people, thinking, and styles. Possesses a high school diploma, GED, or high school equivalency. Is at least 18 years of age and has authorization to work in the United States. What will give you a competitive edge (preferred qualifications) Working knowledge in commercial optimization solvers (Gurobi, Cplex, GLPK, etc.) Working knowledge in model tuning/calibration Proficiency in working with relational databases and query authoring (SQL) Fundamental Machine Learning techniques, including reinforcement learning Working knowledge of AWS Benefits and Perks to Help You Keep Climbing Delta Air Lines, Inc. is an Equal Employment Opportunity / Affi­rmative Action employer and provides reasonable accommodation in its application process for qualified individuals with disabilities and disabled veterans. If you are a qualified individual, you may request a reasonable accommodation if you are unable or limited in your ability to access job openings through this site, apply for jobs through Delta’s online system, or at any point in the selection process. To request a reasonable accommodation, please click here #J-18808-Ljbffr