Alexander (Alex) Kranias

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Hi, I'm Alex! I'm a CS student at Georgia Tech.

I'm interested in systems and machine learning.

I love working on hard problems with great people.

Currently I'm

Jan 2025 - Present A research intern in Georgia Tech's SHI Labs. I previously worked on our Generalized Neighborhood Attention project (arxiv.org/abs/2504.16922) - a sparse attention mechanism for vision transformers (MMDiTs/ViTs).

Previously I

May 2025 - Aug 2025 Worked at Apple as a Software Engineer Intern on the MPS Kernels team (Summer 2025). I developed GPU kernels to accelerate time-to-first-token of MoE LLMs (among other transformer-based DL models) for future hardware.
Aug 2024 - Dec 2024 Worked at AMD as an AI Inference Software Engineer Intern (Fall 2024) on the Triton Kernels team; I developed and optimized new features for our FlashAttention GPU kernels; added rotary positional embeddings, sliding window attention, dropout, and FP8 quantization support.
October 2024 Won the Hyperbolic Prize at CalHacks 2024. Created CLaiM: a web app that uses computer vision to automate the filing of property insurance claims after natural disasters strike.
September 2024 Won "Best Hardware Hack" at HackMIT 2024. Built telepathy: a non-invasive, private silent speech interface between people and machines.
May 2024 - Aug 2024 Developed ROS2 C++ simulation packages of vehicle ad-hoc networks for autonomous mobile industrial robots at Vermeer.
July 2023 - July 2024 Co-founded Sideline: a sports tech startup bringing multimodal vector search and AI scouting to coaching and recruitment. We demoed our product to 17 NCAA colleges, received over 5 million views online, and pitched to NBA leadership.
Jan 2024 - May 2024 Researched novel cache replacement algorithms to mitigate row hammer attacks with Anurag Kar advised by Professor Hyseoon Kim in Georgia Tech's HPArch Lab.
February 2024 Won 1st Place at Treehacks 2024 for the Entertainment & Interaction Track. Built 3dReal: an iOS app creating NeRFs from networks of mobile phones.
Aug 2023 - Dec 2023 Assisted with Professor Hyseoon Kim's OMSCS GPU HW/SW course. Wrote a draft of the course's Tiled Matrix Multiplication kernel assignment.
September 2023 Won 1st Place at HackMIT 2023 for the Terra Award. Created Bite: a computer vision enabled watch that tracks your daily nutritonal intake for you.
Oct 2022 - Sept 2023 Created tools and benchmarks for LLMs at DuckAI: DuckTrack and ARB.
May 2023 - July 2023 Built an LLM-powered web app that deploys personalized fine-tuned GPT models for financial advisors and investment bankers at Raymond James Financial.
Sept 2019 - Dec 2021 Co-founded Rentathon: a person-to-person rental marketplace for household items.

Life

Outside of school/work, I row on Georgia Tech's Varsity Men's rowing team, make good use of my cameras, and try to spend the rest of my time making, learning, and exploring new things with friends.