Harini Thiagarajan

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Hi! I'm Harini, a sophomore at MIT studying Electrical Engineering & Computer Science and Mathematics (6-5 & 18) from Seattle, WA.

My work lies in efficient reinforcement learning for LLM post-training, with a particular focus on credit assignment for long-horizon reasoning and agentic tasks. I'm currently a Research Intern on the Model Shaping team at Together AI and a researcher in MIT CSAIL's Improbable AI Lab under Prof. Pulkit Agrawal.

Previously, I interned at Amazon Last Mile, working on package delivery optimization. During my first year, I worked on robotics/reinforcement learning at MIT AeroAstro's ARCLab under Prof. Richard Linares. I spent most of my time in high school working in gravitational wave research under Prof. Ansel Neunzert at LIGO Caltech, and was awarded the 1st Place Grand Award at the 2024 Regeneron ISEF.

Outside of academics and research, I'm a co-captain of MIT Nritya (Indian classical dance) and dance with MIT Mirchi (Bollywood fusion), competing as part of the team. I also play violin and grew up learning both Western classical and Indian classical genres.

I love meeting new people and talking about... everything! Feel free to reach out harinit9 [at] mit [dot] edu.