I am a physicist, a mathematician, and a developer… a creator, a problem solver, and a curious mind.
I work as a Research Scientist at GNS Healthcare (2018–present), where I develop cuttingedge causal machine learning algorithms.
As a Postdoctoral Research Associate at West Virginia University (2015–18), I developed custom open source computer code to simulate and study gravitational phenomena which became 180 times more efficient than our competitors. This work has been presented at 5 conferences, lead to 2 publications in Physical Review D, and the creation of an Open Source Project named SENR/NRPy+.
My primary research focus involves generating accurate numerical simulations of the inspiral and merger phases of orbiting black hole binaries. In particular, I am interested in exploring the extreme limits of general relativity in the regime of near maximal intrinsic angular momentum. In addition to probing the peculiarities of nonlinear gravity theory, I generate astrophysical gravitational waveforms for use in gravitational wave detection experiments.
PhD Dissertation: Puncture Initial Data and Evolution of Black Hole Binaries with High Speed and High Spin (2015)
Publications:

Numerical generation of vector potentials from specified magnetic fields
Zachary J. Silberman, Thomas R. Adams, Joshua A. Faber, Zachariah B. Etienne, and Ian Ruchlin
Journal of Computational Physics (2019); arXiv:1803.10207 
Numerical relativity in spherical coordinates with the Einstein Toolkit
Vassilios Mewes, Yosef Zlochower, Manuela Campanelli, Ian Ruchlin, Zachariah B. Etienne, and Thomas W. Baumgarte
Physical Review D (97) 084059 (2018); arXiv:1802.09625. 
SENR/NRPy+: Numerical relativity in singular curvilinear coordinate systems
Ian Ruchlin, Zachariah B. Etienne, and Thomas W. Baumgarte
Physical Review D (97) 064036 (2018); arXiv:1712.07658 
Evolutions of unequal mass, highly spinning black hole binaries
James Healy, Carlos O. Lousto, Ian Ruchlin, and Yosef Zlochower
Physical Review D (97) 104026 (2018); arXiv:1711.09041 
Evolutions of nearly maximally spinning black hole binaries using the moving puncture approach
Yosef Zlochower, James Healy, Carlos O. Lousto, and Ian Ruchlin
Physical Review D (96) 044002 (2017); arXiv:1706:01980 
Puncture initial data for blackhole binaries with high spins and high boosts
Ian Ruchlin, James Healy, Carlos O. Lousto, and Yosef Zlochower
Physical Review D (95) 024033 (2017); arXiv:1410.8607 
High energy collisions of black holes numerically revisited
James Healy, Ian Ruchlin, Carlos O. Lousto, and Yosef Zlochower
Physical Review D (94) 104020 (2016); arXiv:1506.06153 
Calculating a confidence interval on the sum of binned leakage
Ian Ruchlin and Richard W. Schnee
Nuclear Instruments and Methods in Physics Research Section A. Volume 664, Issue 1 (2012); arXiv:1106.6296