Meshack Okello

Hoagie Club (Princeton App Dev Club) • Princeton, NJ

Shipped and maintain 1 production Android app, HoagieMarket (student-to-student marketplace for reselling items and leasing electronics like gaming consoles, laptops, and cameras); Kotlin, Jetpack Compose, MVVM, Coroutines/Flows, serving 2,000+ daily active Princeton students • Shipped and maintain 1 production Android app, HoagieMarket (student-to-student marketplace for reselling items and leasing electronics like gaming consoles, laptops, and cameras); Kotlin, Jetpack Compose, MVVM, Coroutines/Flows, serving 2,000+ daily active Princeton students • Collaborated with product and design to launch; implemented in-app messaging, secure payment integration for leases, item condition photo verification, rental duration calculator, user ratings/reviews. • Manage end-to-end release process, including versioning, beta testing via internal tracks, Play Store publishing, and automated builds/deployments, using Google Play Console and Buildkite CI/CD pipelines

Princeton University CS Department • Princeton, NJ

Mentored 40+ students in Algorithms and Data Structures, providing guidance on problem sets, proofs, and implementation of core algorithms (sorting, searching, graphs, trees, hashing) • Mentored 40+ students in Algorithms and Data Structures, providing guidance on problem sets, proofs, and implementation of core algorithms (sorting, searching, graphs, trees, hashing) • Held weekly office hours and graded problem sets, midterms, and finals, emphasizing correctness, time/space complexity analysis, and clean Java code • Developed and shared supplementary materials (e.g., detailed walkthroughs on Dijkstra's algorithm, union-find, red-black trees)