Who I am

I'm Kshitij. I work on everything to do with AI understanding and the user experience for security professionals at Absentia Technologies. I used to work on recommendation systems at Nevara.ai and also developed foundation models at Spatialise. I'm a May 2024 graduate from Boston University's Master of Electrical and Computer Engineering program. As a student, I worked in Boston University's Space Physics Lab from October 2022 to May 2024, advised by Joshua Semeter. I also worked at the Hariri Center for NASA's Life on Mars initiative, developing signal processing and machine learning techniques to analyze the Martian ionosphere and simulated GPS propagation through it. Previously, I was at COEP from 2018-2022.

I was also a TA/mentor for CRANE 2025's winter session, instructing students in computational plasma physics. I work on mechanistic interpretability in astrophysics at UniverseTBD.

I am also at MIT as a SIPB member where I do DevOps + documentation for ArkOS.

Links

Contact me

I can be emailed at kshitijd [at] bu.edu or at kshitijduraphe5 [at] gmail.com or at kshitij.ark [at] mit.edu. Inspired by Piotr Teterwak I am available for "office hours" (offline or through video conferencing) each week to talk about anything you like. I have gone through Masters admissions and the post-COVID US STEM job hunt, and also defended a thesis, so I have some perspective on that as well as graduate student life. Email me with the subject line "OFFICE HOURS" and give me a brief overview of what you want to talk about. Ideally you should be an undergraduate or new (US) Masters student in some field relevant to EECS, but I am happy to talk with new grads and high schoolers as well.

My interests

On the theory side, I'm broadly interested in astrophysics and the application of inverse methods to astrophysical phenomena. I hope to branch out into more applied SciML and develop faster and more reliable methods to understand these phenomena.

On the practical side, I'm interested in developing fast, efficient, and scalable multimodal signal and image processing systems to solve engineering problems in unstructured, noisy, and sparse scenarios.

Some things I've worked on

  1. (University of Zielona Góra, 2025): Timing and spectral analysis of Cygnus X-1 with a decade of NuSTAR observations. The first part of that work is under review at ApJ.
  2. (UniverseTBD, 2025): Mechanistic interpretability in astronomy. In particular, we showed that the Platonic Representation Hypothesis holds for astronomy in this paper, and published at the 2025 edition of NeurIPS' ML4PS workshop. Update: This is now a spotlight paper (top 1%), and I will hopefully be presenting the work at NeurIPS!
  3. (BU, 2022-2024): A variety of investigations into the STEVE phenomenon - fluid electrodynamic simulations, citizen science + scientific data-driven reconstruction, deep learning methods for automated detection systems. I defended a Master's thesis in April 2024 (Committee: Joshua Semeter, Yukitoshi Nishimura, Michael Hirsch) on the latter two topics.
  4. (BU, 2023): I worked on the NASA Life on Mars initiative at Hariri. I simulated EM propagation through Mars' ionosphere and developed models for detecting features on GNSS maps.
  5. (BU, 2024): During the April 8 full solar eclipse, the Semeter Lab members went around New England and into Canada to record GNSS data from consumer cell phones. I helped take observations at MIT and Ogunquit, ME. A poster was presented by Nina Servan-Schreiber at the 2024 CEDAR Workshop.
  6. (GaTech, 2024): A VLM-LLM integrated end-to-end system that generates insurance recommendation reports using a combination of tenant complaints and photos taken by an insurance agent for Hacklytics 2024.
  7. (MIT, 2024): Developed custom optimizers for linear quantum photonic GANs at iQuHack-24.
  8. (MIT, 2023): A QCBM-based music generator that won second place in the IBM x Covalent challenge at iQuHack-23.
  9. (COEP, 2022): Building a neutral hydrogen radio telescope from scratch, advised by Archana Thosar.
  10. (IIT Bombay, 2021, BU, 2022): Analysis of the binary star system QX Cas with PHOEBE.
  11. (COEP, 2021): Some linear models for solar power, advised by Suhas Kakade and Rohan Kulkarni.

Miscellaneous

  • I keep a list of courses I took at BU along with my thoughts on them. The course name, number, and instructor might have changed since I took them. You can find the list here.

  • Check out some of my thoughts here.

What on the internet do I find interesting?

  • scivision.dev: Michael Hirsch singlehandedly carries the GNSS community on his back with Georinex and his website is full of useful tips and tricks for wrangling with C Compilers.
  • Dan Luu's website. Commentary on programming and tech-society.
  • The UCR Matrix Profile Page: The best time-series page on the internet.